Mercurial > vba-clojure

     1 #include <cstdio>

     2 #include <cstdlib>

     3 #include <cstring>

     4 #include <cassert>

     5 

     6 #include "../Port.h"

     7 #include "../NLS.h"

     8 #include "GB.h"

     9 #include "gbCheats.h"

    10 #include "gbGlobals.h"

    11 #include "gbMemory.h"

    12 #include "gbSGB.h"

    13 #include "gbSound.h"

    14 #include "../common/unzip.h"

    15 #include "../common/Util.h"

    16 #include "../common/System.h"

    17 #include "../common/movie.h"

    18 // #include "../common/vbalua.h"

    19 

    20 #ifdef __GNUC__

    21 #define _stricmp strcasecmp

    22 #endif

    23 

    24 // FIXME: constant (GB) or boolean (GBA)?!

    25 #define C_FLAG 0x10

    26 #define H_FLAG 0x20

    27 #define N_FLAG 0x40

    28 #define Z_FLAG 0x80

    29 extern soundtick_t GB_USE_TICKS_AS;

    30 

    31 u8 *		 origPix = NULL;

    32 extern u8 *	 pix;

    33 extern u32	 extButtons;

    34 extern bool8 capturePrevious;

    35 extern int32 captureNumber;

    36 extern bool8 speedup;

    37 

    38 bool gbUpdateSizes();

    39 

    40 // debugging

    41 bool memorydebug = false;

    42 char gbBuffer[2048];

    43 

    44 extern u16 gbLineMix[160];

    45 

    46 // mappers

    47 void (*mapper)(u16, u8)	   = NULL;

    48 void (*mapperRAM)(u16, u8) = NULL;

    49 u8   (*mapperReadRAM)(u16) = NULL;

    50 

    51 // registers

    52 gbRegister PC;

    53 gbRegister SP;

    54 gbRegister AF;

    55 gbRegister BC;

    56 gbRegister DE;

    57 gbRegister HL;

    58 u16        IFF;

    59 // 0xff04

    60 u8 register_DIV = 0;

    61 // 0xff05

    62 u8 register_TIMA = 0;

    63 // 0xff06

    64 u8 register_TMA = 0;

    65 // 0xff07

    66 u8 register_TAC = 0;

    67 // 0xff0f

    68 u8 register_IF = 0;

    69 // 0xff40

    70 u8 register_LCDC = 0;

    71 // 0xff41

    72 u8 register_STAT = 0;

    73 // 0xff42

    74 u8 register_SCY = 0;

    75 // 0xff43

    76 u8 register_SCX = 0;

    77 // 0xff44

    78 u8 register_LY = 0;

    79 // 0xff45

    80 u8 register_LYC = 0;

    81 // 0xff46

    82 u8 register_DMA = 0;

    83 // 0xff4a

    84 u8 register_WY = 0;

    85 // 0xff4b

    86 u8 register_WX = 0;

    87 // 0xff4f

    88 u8 register_VBK = 0;

    89 // 0xff51

    90 u8 register_HDMA1 = 0;

    91 // 0xff52

    92 u8 register_HDMA2 = 0;

    93 // 0xff53

    94 u8 register_HDMA3 = 0;

    95 // 0xff54

    96 u8 register_HDMA4 = 0;

    97 // 0xff55

    98 u8 register_HDMA5 = 0;

    99 // 0xff70

   100 u8 register_SVBK = 0;

   101 // 0xffff

   102 u8 register_IE = 0;

   103 

   104 // ticks definition

   105 int32 GBDIV_CLOCK_TICKS = 64;

   106 int32 GBLCD_MODE_0_CLOCK_TICKS	 = 51;

   107 int32 GBLCD_MODE_1_CLOCK_TICKS	 = 1140;

   108 int32 GBLCD_MODE_2_CLOCK_TICKS	 = 20;

   109 int32 GBLCD_MODE_3_CLOCK_TICKS	 = 43;

   110 int32 GBLY_INCREMENT_CLOCK_TICKS = 114;

   111 int32 GBTIMER_MODE_0_CLOCK_TICKS = 256;

   112 int32 GBTIMER_MODE_1_CLOCK_TICKS = 4;

   113 int32 GBTIMER_MODE_2_CLOCK_TICKS = 16;

   114 int32 GBTIMER_MODE_3_CLOCK_TICKS = 64;

   115 int32 GBSERIAL_CLOCK_TICKS		 = 128;

   116 int32 GBSYNCHRONIZE_CLOCK_TICKS	 = 52920;

   117 

   118 // state variables

   119 

   120 // interrupt

   121 int32 gbInterrupt	  = 0;

   122 int32 gbInterruptWait = 0;

   123 // serial

   124 int32 gbSerialOn	= 0;

   125 int32 gbSerialTicks = 0;

   126 int32 gbSerialBits	= 0;

   127 // timer

   128 int32 gbTimerOn			= 0;

   129 int32 gbTimerTicks		= 0;

   130 int32 gbTimerClockTicks = 0;

   131 int32 gbTimerMode		= 0;

   132 // lcd

   133 int32 gbLcdMode	 = 2;

   134 int32 gbLcdTicks = GBLCD_MODE_2_CLOCK_TICKS;

   135 int32 gbLcdLYIncrementTicks = 0;

   136 // div

   137 int32 gbDivTicks = GBDIV_CLOCK_TICKS;

   138 // cgb

   139 int32 gbVramBank		= 0;

   140 int32 gbWramBank		= 1;

   141 int32 gbHdmaSource		= 0x0000;

   142 int32 gbHdmaDestination = 0x8000;

   143 int32 gbHdmaBytes		= 0x0000;

   144 int32 gbHdmaOn = 0;

   145 int32 gbSpeed  = 0;

   146 // frame counting

   147 int32 gbFrameCount	   = 0;

   148 int32 gbFrameSkip	   = 0;

   149 int32 gbFrameSkipCount = 0;

   150 // timing

   151 u32	  gbLastTime		 = 0;

   152 u32	  gbElapsedTime		 = 0;

   153 u32	  gbTimeNow			 = 0;

   154 int32 gbSynchronizeTicks = GBSYNCHRONIZE_CLOCK_TICKS;

   155 int32 gbDMASpeedVersion	 = 1;

   156 // emulator features

   157 int32 gbBattery	   = 0;

   158 int32 gbJoymask[4] = { 0, 0, 0, 0 };

   159 

   160 int32 gbEchoRAMFixOn = 1;

   161 

   162 static bool newFrame = true;

   163 static bool pauseAfterFrameAdvance = false;

   164 

   165 int32 gbRomSizes[] = { 0x00008000, // 32K

   166 		       0x00010000, // 64K

   167 		       0x00020000, // 128K

   168 		       0x00040000, // 256K

   169 		       0x00080000, // 512K

   170 		       0x00100000, // 1024K

   171 		       0x00200000, // 2048K

   172 		       0x00400000, // 4096K

   173 		       0x00800000 // 8192K

   174 };

   175 int32 gbRomSizesMasks[] = { 0x00007fff,

   176 			    0x0000ffff,

   177 			    0x0001ffff,

   178 			    0x0003ffff,

   179 			    0x0007ffff,

   180 			    0x000fffff,

   181 			    0x001fffff,

   182 			    0x003fffff,

   183 			    0x007fffff };

   184 

   185 int32 gbRamSizes[6] = { 0x00000000, // 0K

   186 			0x00000800, // 2K

   187 			0x00002000, // 8K

   188 			0x00008000, // 32K

   189 			0x00020000, // 128K

   190 			0x00010000 // 64K

   191 };

   192 

   193 int32 gbRamSizesMasks[6] = { 0x00000000,

   194 			     0x000007ff,

   195 			     0x00001fff,

   196 			     0x00007fff,

   197 			     0x0001ffff,

   198 			     0x0000ffff };

   199 

   200 int32 gbCycles[] =

   201   {

   202     //  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

   203     1, 3, 2, 2, 1, 1, 2, 1, 5, 2, 2, 2, 1, 1, 2, 1,  // 0

   204     1, 3, 2, 2, 1, 1, 2, 1, 3, 2, 2, 2, 1, 1, 2, 1,  // 1

   205     2, 3, 2, 2, 1, 1, 2, 1, 2, 2, 2, 2, 1, 1, 2, 1,  // 2

   206     2, 3, 2, 2, 3, 3, 3, 1, 2, 2, 2, 2, 1, 1, 2, 1,  // 3

   207     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // 4

   208     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // 5

   209     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // 6

   210     2, 2, 2, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1,  // 7

   211     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // 8

   212     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // 9

   213     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // a

   214     1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,  // b

   215     2, 3, 3, 4, 3, 4, 2, 4, 2, 4, 3, 2, 3, 6, 2, 4,  // c

   216     2, 3, 3, 0, 3, 4, 2, 4, 2, 4, 3, 0, 3, 0, 2, 4,  // d

   217     3, 3, 2, 0, 0, 4, 2, 4, 4, 1, 4, 0, 0, 0, 2, 4,  // e

   218     3, 3, 2, 1, 0, 4, 2, 4, 3, 2, 4, 1, 0, 0, 2, 4   // f

   219   };

   220 

   221 int32 gbCyclesCB[] =

   222   {

   223     //  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

   224     2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2,  // 0

   225     2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2,  // 1

   226     2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2,  // 2

   227     2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2,  // 3

   228     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 4

   229     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 5

   230     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 6

   231     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 7

   232     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 8

   233     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // 9

   234     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // a

   235     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // b

   236     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // c

   237     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // d

   238     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2,  // e

   239     2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2   // f

   240   };

   241 

   242 u16 DAATable[] =

   243   {

   244     0x0080, 0x0100, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600, 0x0700,

   245     0x0800, 0x0900, 0x1020, 0x1120, 0x1220, 0x1320, 0x1420, 0x1520,

   246     0x1000, 0x1100, 0x1200, 0x1300, 0x1400, 0x1500, 0x1600, 0x1700,

   247     0x1800, 0x1900, 0x2020, 0x2120, 0x2220, 0x2320, 0x2420, 0x2520,

   248     0x2000, 0x2100, 0x2200, 0x2300, 0x2400, 0x2500, 0x2600, 0x2700,

   249     0x2800, 0x2900, 0x3020, 0x3120, 0x3220, 0x3320, 0x3420, 0x3520,

   250     0x3000, 0x3100, 0x3200, 0x3300, 0x3400, 0x3500, 0x3600, 0x3700,

   251     0x3800, 0x3900, 0x4020, 0x4120, 0x4220, 0x4320, 0x4420, 0x4520,

   252     0x4000, 0x4100, 0x4200, 0x4300, 0x4400, 0x4500, 0x4600, 0x4700,

   253     0x4800, 0x4900, 0x5020, 0x5120, 0x5220, 0x5320, 0x5420, 0x5520,

   254     0x5000, 0x5100, 0x5200, 0x5300, 0x5400, 0x5500, 0x5600, 0x5700,

   255     0x5800, 0x5900, 0x6020, 0x6120, 0x6220, 0x6320, 0x6420, 0x6520,

   256     0x6000, 0x6100, 0x6200, 0x6300, 0x6400, 0x6500, 0x6600, 0x6700,

   257     0x6800, 0x6900, 0x7020, 0x7120, 0x7220, 0x7320, 0x7420, 0x7520,

   258     0x7000, 0x7100, 0x7200, 0x7300, 0x7400, 0x7500, 0x7600, 0x7700,

   259     0x7800, 0x7900, 0x8020, 0x8120, 0x8220, 0x8320, 0x8420, 0x8520,

   260     0x8000, 0x8100, 0x8200, 0x8300, 0x8400, 0x8500, 0x8600, 0x8700,

   261     0x8800, 0x8900, 0x9020, 0x9120, 0x9220, 0x9320, 0x9420, 0x9520,

   262     0x9000, 0x9100, 0x9200, 0x9300, 0x9400, 0x9500, 0x9600, 0x9700,

   263     0x9800, 0x9900, 0x00B0, 0x0130, 0x0230, 0x0330, 0x0430, 0x0530,

   264     0x0090, 0x0110, 0x0210, 0x0310, 0x0410, 0x0510, 0x0610, 0x0710,

   265     0x0810, 0x0910, 0x1030, 0x1130, 0x1230, 0x1330, 0x1430, 0x1530,

   266     0x1010, 0x1110, 0x1210, 0x1310, 0x1410, 0x1510, 0x1610, 0x1710,

   267     0x1810, 0x1910, 0x2030, 0x2130, 0x2230, 0x2330, 0x2430, 0x2530,

   268     0x2010, 0x2110, 0x2210, 0x2310, 0x2410, 0x2510, 0x2610, 0x2710,

   269     0x2810, 0x2910, 0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530,

   270     0x3010, 0x3110, 0x3210, 0x3310, 0x3410, 0x3510, 0x3610, 0x3710,

   271     0x3810, 0x3910, 0x4030, 0x4130, 0x4230, 0x4330, 0x4430, 0x4530,

   272     0x4010, 0x4110, 0x4210, 0x4310, 0x4410, 0x4510, 0x4610, 0x4710,

   273     0x4810, 0x4910, 0x5030, 0x5130, 0x5230, 0x5330, 0x5430, 0x5530,

   274     0x5010, 0x5110, 0x5210, 0x5310, 0x5410, 0x5510, 0x5610, 0x5710,

   275     0x5810, 0x5910, 0x6030, 0x6130, 0x6230, 0x6330, 0x6430, 0x6530,

   276     0x6010, 0x6110, 0x6210, 0x6310, 0x6410, 0x6510, 0x6610, 0x6710,

   277     0x6810, 0x6910, 0x7030, 0x7130, 0x7230, 0x7330, 0x7430, 0x7530,

   278     0x7010, 0x7110, 0x7210, 0x7310, 0x7410, 0x7510, 0x7610, 0x7710,

   279     0x7810, 0x7910, 0x8030, 0x8130, 0x8230, 0x8330, 0x8430, 0x8530,

   280     0x8010, 0x8110, 0x8210, 0x8310, 0x8410, 0x8510, 0x8610, 0x8710,

   281     0x8810, 0x8910, 0x9030, 0x9130, 0x9230, 0x9330, 0x9430, 0x9530,

   282     0x9010, 0x9110, 0x9210, 0x9310, 0x9410, 0x9510, 0x9610, 0x9710,

   283     0x9810, 0x9910, 0xA030, 0xA130, 0xA230, 0xA330, 0xA430, 0xA530,

   284     0xA010, 0xA110, 0xA210, 0xA310, 0xA410, 0xA510, 0xA610, 0xA710,

   285     0xA810, 0xA910, 0xB030, 0xB130, 0xB230, 0xB330, 0xB430, 0xB530,

   286     0xB010, 0xB110, 0xB210, 0xB310, 0xB410, 0xB510, 0xB610, 0xB710,

   287     0xB810, 0xB910, 0xC030, 0xC130, 0xC230, 0xC330, 0xC430, 0xC530,

   288     0xC010, 0xC110, 0xC210, 0xC310, 0xC410, 0xC510, 0xC610, 0xC710,

   289     0xC810, 0xC910, 0xD030, 0xD130, 0xD230, 0xD330, 0xD430, 0xD530,

   290     0xD010, 0xD110, 0xD210, 0xD310, 0xD410, 0xD510, 0xD610, 0xD710,

   291     0xD810, 0xD910, 0xE030, 0xE130, 0xE230, 0xE330, 0xE430, 0xE530,

   292     0xE010, 0xE110, 0xE210, 0xE310, 0xE410, 0xE510, 0xE610, 0xE710,

   293     0xE810, 0xE910, 0xF030, 0xF130, 0xF230, 0xF330, 0xF430, 0xF530,

   294     0xF010, 0xF110, 0xF210, 0xF310, 0xF410, 0xF510, 0xF610, 0xF710,

   295     0xF810, 0xF910, 0x00B0, 0x0130, 0x0230, 0x0330, 0x0430, 0x0530,

   296     0x0090, 0x0110, 0x0210, 0x0310, 0x0410, 0x0510, 0x0610, 0x0710,

   297     0x0810, 0x0910, 0x1030, 0x1130, 0x1230, 0x1330, 0x1430, 0x1530,

   298     0x1010, 0x1110, 0x1210, 0x1310, 0x1410, 0x1510, 0x1610, 0x1710,

   299     0x1810, 0x1910, 0x2030, 0x2130, 0x2230, 0x2330, 0x2430, 0x2530,

   300     0x2010, 0x2110, 0x2210, 0x2310, 0x2410, 0x2510, 0x2610, 0x2710,

   301     0x2810, 0x2910, 0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530,

   302     0x3010, 0x3110, 0x3210, 0x3310, 0x3410, 0x3510, 0x3610, 0x3710,

   303     0x3810, 0x3910, 0x4030, 0x4130, 0x4230, 0x4330, 0x4430, 0x4530,

   304     0x4010, 0x4110, 0x4210, 0x4310, 0x4410, 0x4510, 0x4610, 0x4710,

   305     0x4810, 0x4910, 0x5030, 0x5130, 0x5230, 0x5330, 0x5430, 0x5530,

   306     0x5010, 0x5110, 0x5210, 0x5310, 0x5410, 0x5510, 0x5610, 0x5710,

   307     0x5810, 0x5910, 0x6030, 0x6130, 0x6230, 0x6330, 0x6430, 0x6530,

   308     0x0600, 0x0700, 0x0800, 0x0900, 0x0A00, 0x0B00, 0x0C00, 0x0D00,

   309     0x0E00, 0x0F00, 0x1020, 0x1120, 0x1220, 0x1320, 0x1420, 0x1520,

   310     0x1600, 0x1700, 0x1800, 0x1900, 0x1A00, 0x1B00, 0x1C00, 0x1D00,

   311     0x1E00, 0x1F00, 0x2020, 0x2120, 0x2220, 0x2320, 0x2420, 0x2520,

   312     0x2600, 0x2700, 0x2800, 0x2900, 0x2A00, 0x2B00, 0x2C00, 0x2D00,

   313     0x2E00, 0x2F00, 0x3020, 0x3120, 0x3220, 0x3320, 0x3420, 0x3520,

   314     0x3600, 0x3700, 0x3800, 0x3900, 0x3A00, 0x3B00, 0x3C00, 0x3D00,

   315     0x3E00, 0x3F00, 0x4020, 0x4120, 0x4220, 0x4320, 0x4420, 0x4520,

   316     0x4600, 0x4700, 0x4800, 0x4900, 0x4A00, 0x4B00, 0x4C00, 0x4D00,

   317     0x4E00, 0x4F00, 0x5020, 0x5120, 0x5220, 0x5320, 0x5420, 0x5520,

   318     0x5600, 0x5700, 0x5800, 0x5900, 0x5A00, 0x5B00, 0x5C00, 0x5D00,

   319     0x5E00, 0x5F00, 0x6020, 0x6120, 0x6220, 0x6320, 0x6420, 0x6520,

   320     0x6600, 0x6700, 0x6800, 0x6900, 0x6A00, 0x6B00, 0x6C00, 0x6D00,

   321     0x6E00, 0x6F00, 0x7020, 0x7120, 0x7220, 0x7320, 0x7420, 0x7520,

   322     0x7600, 0x7700, 0x7800, 0x7900, 0x7A00, 0x7B00, 0x7C00, 0x7D00,

   323     0x7E00, 0x7F00, 0x8020, 0x8120, 0x8220, 0x8320, 0x8420, 0x8520,

   324     0x8600, 0x8700, 0x8800, 0x8900, 0x8A00, 0x8B00, 0x8C00, 0x8D00,

   325     0x8E00, 0x8F00, 0x9020, 0x9120, 0x9220, 0x9320, 0x9420, 0x9520,

   326     0x9600, 0x9700, 0x9800, 0x9900, 0x9A00, 0x9B00, 0x9C00, 0x9D00,

   327     0x9E00, 0x9F00, 0x00B0, 0x0130, 0x0230, 0x0330, 0x0430, 0x0530,

   328     0x0610, 0x0710, 0x0810, 0x0910, 0x0A10, 0x0B10, 0x0C10, 0x0D10,

   329     0x0E10, 0x0F10, 0x1030, 0x1130, 0x1230, 0x1330, 0x1430, 0x1530,

   330     0x1610, 0x1710, 0x1810, 0x1910, 0x1A10, 0x1B10, 0x1C10, 0x1D10,

   331     0x1E10, 0x1F10, 0x2030, 0x2130, 0x2230, 0x2330, 0x2430, 0x2530,

   332     0x2610, 0x2710, 0x2810, 0x2910, 0x2A10, 0x2B10, 0x2C10, 0x2D10,

   333     0x2E10, 0x2F10, 0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530,

   334     0x3610, 0x3710, 0x3810, 0x3910, 0x3A10, 0x3B10, 0x3C10, 0x3D10,

   335     0x3E10, 0x3F10, 0x4030, 0x4130, 0x4230, 0x4330, 0x4430, 0x4530,

   336     0x4610, 0x4710, 0x4810, 0x4910, 0x4A10, 0x4B10, 0x4C10, 0x4D10,

   337     0x4E10, 0x4F10, 0x5030, 0x5130, 0x5230, 0x5330, 0x5430, 0x5530,

   338     0x5610, 0x5710, 0x5810, 0x5910, 0x5A10, 0x5B10, 0x5C10, 0x5D10,

   339     0x5E10, 0x5F10, 0x6030, 0x6130, 0x6230, 0x6330, 0x6430, 0x6530,

   340     0x6610, 0x6710, 0x6810, 0x6910, 0x6A10, 0x6B10, 0x6C10, 0x6D10,

   341     0x6E10, 0x6F10, 0x7030, 0x7130, 0x7230, 0x7330, 0x7430, 0x7530,

   342     0x7610, 0x7710, 0x7810, 0x7910, 0x7A10, 0x7B10, 0x7C10, 0x7D10,

   343     0x7E10, 0x7F10, 0x8030, 0x8130, 0x8230, 0x8330, 0x8430, 0x8530,

   344     0x8610, 0x8710, 0x8810, 0x8910, 0x8A10, 0x8B10, 0x8C10, 0x8D10,

   345     0x8E10, 0x8F10, 0x9030, 0x9130, 0x9230, 0x9330, 0x9430, 0x9530,

   346     0x9610, 0x9710, 0x9810, 0x9910, 0x9A10, 0x9B10, 0x9C10, 0x9D10,

   347     0x9E10, 0x9F10, 0xA030, 0xA130, 0xA230, 0xA330, 0xA430, 0xA530,

   348     0xA610, 0xA710, 0xA810, 0xA910, 0xAA10, 0xAB10, 0xAC10, 0xAD10,

   349     0xAE10, 0xAF10, 0xB030, 0xB130, 0xB230, 0xB330, 0xB430, 0xB530,

   350     0xB610, 0xB710, 0xB810, 0xB910, 0xBA10, 0xBB10, 0xBC10, 0xBD10,

   351     0xBE10, 0xBF10, 0xC030, 0xC130, 0xC230, 0xC330, 0xC430, 0xC530,

   352     0xC610, 0xC710, 0xC810, 0xC910, 0xCA10, 0xCB10, 0xCC10, 0xCD10,

   353     0xCE10, 0xCF10, 0xD030, 0xD130, 0xD230, 0xD330, 0xD430, 0xD530,

   354     0xD610, 0xD710, 0xD810, 0xD910, 0xDA10, 0xDB10, 0xDC10, 0xDD10,

   355     0xDE10, 0xDF10, 0xE030, 0xE130, 0xE230, 0xE330, 0xE430, 0xE530,

   356     0xE610, 0xE710, 0xE810, 0xE910, 0xEA10, 0xEB10, 0xEC10, 0xED10,

   357     0xEE10, 0xEF10, 0xF030, 0xF130, 0xF230, 0xF330, 0xF430, 0xF530,

   358     0xF610, 0xF710, 0xF810, 0xF910, 0xFA10, 0xFB10, 0xFC10, 0xFD10,

   359     0xFE10, 0xFF10, 0x00B0, 0x0130, 0x0230, 0x0330, 0x0430, 0x0530,

   360     0x0610, 0x0710, 0x0810, 0x0910, 0x0A10, 0x0B10, 0x0C10, 0x0D10,

   361     0x0E10, 0x0F10, 0x1030, 0x1130, 0x1230, 0x1330, 0x1430, 0x1530,

   362     0x1610, 0x1710, 0x1810, 0x1910, 0x1A10, 0x1B10, 0x1C10, 0x1D10,

   363     0x1E10, 0x1F10, 0x2030, 0x2130, 0x2230, 0x2330, 0x2430, 0x2530,

   364     0x2610, 0x2710, 0x2810, 0x2910, 0x2A10, 0x2B10, 0x2C10, 0x2D10,

   365     0x2E10, 0x2F10, 0x3030, 0x3130, 0x3230, 0x3330, 0x3430, 0x3530,

   366     0x3610, 0x3710, 0x3810, 0x3910, 0x3A10, 0x3B10, 0x3C10, 0x3D10,

   367     0x3E10, 0x3F10, 0x4030, 0x4130, 0x4230, 0x4330, 0x4430, 0x4530,

   368     0x4610, 0x4710, 0x4810, 0x4910, 0x4A10, 0x4B10, 0x4C10, 0x4D10,

   369     0x4E10, 0x4F10, 0x5030, 0x5130, 0x5230, 0x5330, 0x5430, 0x5530,

   370     0x5610, 0x5710, 0x5810, 0x5910, 0x5A10, 0x5B10, 0x5C10, 0x5D10,

   371     0x5E10, 0x5F10, 0x6030, 0x6130, 0x6230, 0x6330, 0x6430, 0x6530,

   372     0x00C0, 0x0140, 0x0240, 0x0340, 0x0440, 0x0540, 0x0640, 0x0740,

   373     0x0840, 0x0940, 0x0440, 0x0540, 0x0640, 0x0740, 0x0840, 0x0940,

   374     0x1040, 0x1140, 0x1240, 0x1340, 0x1440, 0x1540, 0x1640, 0x1740,

   375     0x1840, 0x1940, 0x1440, 0x1540, 0x1640, 0x1740, 0x1840, 0x1940,

   376     0x2040, 0x2140, 0x2240, 0x2340, 0x2440, 0x2540, 0x2640, 0x2740,

   377     0x2840, 0x2940, 0x2440, 0x2540, 0x2640, 0x2740, 0x2840, 0x2940,

   378     0x3040, 0x3140, 0x3240, 0x3340, 0x3440, 0x3540, 0x3640, 0x3740,

   379     0x3840, 0x3940, 0x3440, 0x3540, 0x3640, 0x3740, 0x3840, 0x3940,

   380     0x4040, 0x4140, 0x4240, 0x4340, 0x4440, 0x4540, 0x4640, 0x4740,

   381     0x4840, 0x4940, 0x4440, 0x4540, 0x4640, 0x4740, 0x4840, 0x4940,

   382     0x5040, 0x5140, 0x5240, 0x5340, 0x5440, 0x5540, 0x5640, 0x5740,

   383     0x5840, 0x5940, 0x5440, 0x5540, 0x5640, 0x5740, 0x5840, 0x5940,

   384     0x6040, 0x6140, 0x6240, 0x6340, 0x6440, 0x6540, 0x6640, 0x6740,

   385     0x6840, 0x6940, 0x6440, 0x6540, 0x6640, 0x6740, 0x6840, 0x6940,

   386     0x7040, 0x7140, 0x7240, 0x7340, 0x7440, 0x7540, 0x7640, 0x7740,

   387     0x7840, 0x7940, 0x7440, 0x7540, 0x7640, 0x7740, 0x7840, 0x7940,

   388     0x8040, 0x8140, 0x8240, 0x8340, 0x8440, 0x8540, 0x8640, 0x8740,

   389     0x8840, 0x8940, 0x8440, 0x8540, 0x8640, 0x8740, 0x8840, 0x8940,

   390     0x9040, 0x9140, 0x9240, 0x9340, 0x9440, 0x9540, 0x9640, 0x9740,

   391     0x9840, 0x9940, 0x3450, 0x3550, 0x3650, 0x3750, 0x3850, 0x3950,

   392     0x4050, 0x4150, 0x4250, 0x4350, 0x4450, 0x4550, 0x4650, 0x4750,

   393     0x4850, 0x4950, 0x4450, 0x4550, 0x4650, 0x4750, 0x4850, 0x4950,

   394     0x5050, 0x5150, 0x5250, 0x5350, 0x5450, 0x5550, 0x5650, 0x5750,

   395     0x5850, 0x5950, 0x5450, 0x5550, 0x5650, 0x5750, 0x5850, 0x5950,

   396     0x6050, 0x6150, 0x6250, 0x6350, 0x6450, 0x6550, 0x6650, 0x6750,

   397     0x6850, 0x6950, 0x6450, 0x6550, 0x6650, 0x6750, 0x6850, 0x6950,

   398     0x7050, 0x7150, 0x7250, 0x7350, 0x7450, 0x7550, 0x7650, 0x7750,

   399     0x7850, 0x7950, 0x7450, 0x7550, 0x7650, 0x7750, 0x7850, 0x7950,

   400     0x8050, 0x8150, 0x8250, 0x8350, 0x8450, 0x8550, 0x8650, 0x8750,

   401     0x8850, 0x8950, 0x8450, 0x8550, 0x8650, 0x8750, 0x8850, 0x8950,

   402     0x9050, 0x9150, 0x9250, 0x9350, 0x9450, 0x9550, 0x9650, 0x9750,

   403     0x9850, 0x9950, 0x9450, 0x9550, 0x9650, 0x9750, 0x9850, 0x9950,

   404     0xA050, 0xA150, 0xA250, 0xA350, 0xA450, 0xA550, 0xA650, 0xA750,

   405     0xA850, 0xA950, 0xA450, 0xA550, 0xA650, 0xA750, 0xA850, 0xA950,

   406     0xB050, 0xB150, 0xB250, 0xB350, 0xB450, 0xB550, 0xB650, 0xB750,

   407     0xB850, 0xB950, 0xB450, 0xB550, 0xB650, 0xB750, 0xB850, 0xB950,

   408     0xC050, 0xC150, 0xC250, 0xC350, 0xC450, 0xC550, 0xC650, 0xC750,

   409     0xC850, 0xC950, 0xC450, 0xC550, 0xC650, 0xC750, 0xC850, 0xC950,

   410     0xD050, 0xD150, 0xD250, 0xD350, 0xD450, 0xD550, 0xD650, 0xD750,

   411     0xD850, 0xD950, 0xD450, 0xD550, 0xD650, 0xD750, 0xD850, 0xD950,

   412     0xE050, 0xE150, 0xE250, 0xE350, 0xE450, 0xE550, 0xE650, 0xE750,

   413     0xE850, 0xE950, 0xE450, 0xE550, 0xE650, 0xE750, 0xE850, 0xE950,

   414     0xF050, 0xF150, 0xF250, 0xF350, 0xF450, 0xF550, 0xF650, 0xF750,

   415     0xF850, 0xF950, 0xF450, 0xF550, 0xF650, 0xF750, 0xF850, 0xF950,

   416     0x00D0, 0x0150, 0x0250, 0x0350, 0x0450, 0x0550, 0x0650, 0x0750,

   417     0x0850, 0x0950, 0x0450, 0x0550, 0x0650, 0x0750, 0x0850, 0x0950,

   418     0x1050, 0x1150, 0x1250, 0x1350, 0x1450, 0x1550, 0x1650, 0x1750,

   419     0x1850, 0x1950, 0x1450, 0x1550, 0x1650, 0x1750, 0x1850, 0x1950,

   420     0x2050, 0x2150, 0x2250, 0x2350, 0x2450, 0x2550, 0x2650, 0x2750,

   421     0x2850, 0x2950, 0x2450, 0x2550, 0x2650, 0x2750, 0x2850, 0x2950,

   422     0x3050, 0x3150, 0x3250, 0x3350, 0x3450, 0x3550, 0x3650, 0x3750,

   423     0x3850, 0x3950, 0x3450, 0x3550, 0x3650, 0x3750, 0x3850, 0x3950,

   424     0x4050, 0x4150, 0x4250, 0x4350, 0x4450, 0x4550, 0x4650, 0x4750,

   425     0x4850, 0x4950, 0x4450, 0x4550, 0x4650, 0x4750, 0x4850, 0x4950,

   426     0x5050, 0x5150, 0x5250, 0x5350, 0x5450, 0x5550, 0x5650, 0x5750,

   427     0x5850, 0x5950, 0x5450, 0x5550, 0x5650, 0x5750, 0x5850, 0x5950,

   428     0x6050, 0x6150, 0x6250, 0x6350, 0x6450, 0x6550, 0x6650, 0x6750,

   429     0x6850, 0x6950, 0x6450, 0x6550, 0x6650, 0x6750, 0x6850, 0x6950,

   430     0x7050, 0x7150, 0x7250, 0x7350, 0x7450, 0x7550, 0x7650, 0x7750,

   431     0x7850, 0x7950, 0x7450, 0x7550, 0x7650, 0x7750, 0x7850, 0x7950,

   432     0x8050, 0x8150, 0x8250, 0x8350, 0x8450, 0x8550, 0x8650, 0x8750,

   433     0x8850, 0x8950, 0x8450, 0x8550, 0x8650, 0x8750, 0x8850, 0x8950,

   434     0x9050, 0x9150, 0x9250, 0x9350, 0x9450, 0x9550, 0x9650, 0x9750,

   435     0x9850, 0x9950, 0x9450, 0x9550, 0x9650, 0x9750, 0x9850, 0x9950,

   436     0xFA60, 0xFB60, 0xFC60, 0xFD60, 0xFE60, 0xFF60, 0x00C0, 0x0140,

   437     0x0240, 0x0340, 0x0440, 0x0540, 0x0640, 0x0740, 0x0840, 0x0940,

   438     0x0A60, 0x0B60, 0x0C60, 0x0D60, 0x0E60, 0x0F60, 0x1040, 0x1140,

   439     0x1240, 0x1340, 0x1440, 0x1540, 0x1640, 0x1740, 0x1840, 0x1940,

   440     0x1A60, 0x1B60, 0x1C60, 0x1D60, 0x1E60, 0x1F60, 0x2040, 0x2140,

   441     0x2240, 0x2340, 0x2440, 0x2540, 0x2640, 0x2740, 0x2840, 0x2940,

   442     0x2A60, 0x2B60, 0x2C60, 0x2D60, 0x2E60, 0x2F60, 0x3040, 0x3140,

   443     0x3240, 0x3340, 0x3440, 0x3540, 0x3640, 0x3740, 0x3840, 0x3940,

   444     0x3A60, 0x3B60, 0x3C60, 0x3D60, 0x3E60, 0x3F60, 0x4040, 0x4140,

   445     0x4240, 0x4340, 0x4440, 0x4540, 0x4640, 0x4740, 0x4840, 0x4940,

   446     0x4A60, 0x4B60, 0x4C60, 0x4D60, 0x4E60, 0x4F60, 0x5040, 0x5140,

   447     0x5240, 0x5340, 0x5440, 0x5540, 0x5640, 0x5740, 0x5840, 0x5940,

   448     0x5A60, 0x5B60, 0x5C60, 0x5D60, 0x5E60, 0x5F60, 0x6040, 0x6140,

   449     0x6240, 0x6340, 0x6440, 0x6540, 0x6640, 0x6740, 0x6840, 0x6940,

   450     0x6A60, 0x6B60, 0x6C60, 0x6D60, 0x6E60, 0x6F60, 0x7040, 0x7140,

   451     0x7240, 0x7340, 0x7440, 0x7540, 0x7640, 0x7740, 0x7840, 0x7940,

   452     0x7A60, 0x7B60, 0x7C60, 0x7D60, 0x7E60, 0x7F60, 0x8040, 0x8140,

   453     0x8240, 0x8340, 0x8440, 0x8540, 0x8640, 0x8740, 0x8840, 0x8940,

   454     0x8A60, 0x8B60, 0x8C60, 0x8D60, 0x8E60, 0x8F60, 0x9040, 0x9140,

   455     0x9240, 0x9340, 0x3450, 0x3550, 0x3650, 0x3750, 0x3850, 0x3950,

   456     0x3A70, 0x3B70, 0x3C70, 0x3D70, 0x3E70, 0x3F70, 0x4050, 0x4150,

   457     0x4250, 0x4350, 0x4450, 0x4550, 0x4650, 0x4750, 0x4850, 0x4950,

   458     0x4A70, 0x4B70, 0x4C70, 0x4D70, 0x4E70, 0x4F70, 0x5050, 0x5150,

   459     0x5250, 0x5350, 0x5450, 0x5550, 0x5650, 0x5750, 0x5850, 0x5950,

   460     0x5A70, 0x5B70, 0x5C70, 0x5D70, 0x5E70, 0x5F70, 0x6050, 0x6150,

   461     0x6250, 0x6350, 0x6450, 0x6550, 0x6650, 0x6750, 0x6850, 0x6950,

   462     0x6A70, 0x6B70, 0x6C70, 0x6D70, 0x6E70, 0x6F70, 0x7050, 0x7150,

   463     0x7250, 0x7350, 0x7450, 0x7550, 0x7650, 0x7750, 0x7850, 0x7950,

   464     0x7A70, 0x7B70, 0x7C70, 0x7D70, 0x7E70, 0x7F70, 0x8050, 0x8150,

   465     0x8250, 0x8350, 0x8450, 0x8550, 0x8650, 0x8750, 0x8850, 0x8950,

   466     0x8A70, 0x8B70, 0x8C70, 0x8D70, 0x8E70, 0x8F70, 0x9050, 0x9150,

   467     0x9250, 0x9350, 0x9450, 0x9550, 0x9650, 0x9750, 0x9850, 0x9950,

   468     0x9A70, 0x9B70, 0x9C70, 0x9D70, 0x9E70, 0x9F70, 0xA050, 0xA150,

   469     0xA250, 0xA350, 0xA450, 0xA550, 0xA650, 0xA750, 0xA850, 0xA950,

   470     0xAA70, 0xAB70, 0xAC70, 0xAD70, 0xAE70, 0xAF70, 0xB050, 0xB150,

   471     0xB250, 0xB350, 0xB450, 0xB550, 0xB650, 0xB750, 0xB850, 0xB950,

   472     0xBA70, 0xBB70, 0xBC70, 0xBD70, 0xBE70, 0xBF70, 0xC050, 0xC150,

   473     0xC250, 0xC350, 0xC450, 0xC550, 0xC650, 0xC750, 0xC850, 0xC950,

   474     0xCA70, 0xCB70, 0xCC70, 0xCD70, 0xCE70, 0xCF70, 0xD050, 0xD150,

   475     0xD250, 0xD350, 0xD450, 0xD550, 0xD650, 0xD750, 0xD850, 0xD950,

   476     0xDA70, 0xDB70, 0xDC70, 0xDD70, 0xDE70, 0xDF70, 0xE050, 0xE150,

   477     0xE250, 0xE350, 0xE450, 0xE550, 0xE650, 0xE750, 0xE850, 0xE950,

   478     0xEA70, 0xEB70, 0xEC70, 0xED70, 0xEE70, 0xEF70, 0xF050, 0xF150,

   479     0xF250, 0xF350, 0xF450, 0xF550, 0xF650, 0xF750, 0xF850, 0xF950,

   480     0xFA70, 0xFB70, 0xFC70, 0xFD70, 0xFE70, 0xFF70, 0x00D0, 0x0150,

   481     0x0250, 0x0350, 0x0450, 0x0550, 0x0650, 0x0750, 0x0850, 0x0950,

   482     0x0A70, 0x0B70, 0x0C70, 0x0D70, 0x0E70, 0x0F70, 0x1050, 0x1150,

   483     0x1250, 0x1350, 0x1450, 0x1550, 0x1650, 0x1750, 0x1850, 0x1950,

   484     0x1A70, 0x1B70, 0x1C70, 0x1D70, 0x1E70, 0x1F70, 0x2050, 0x2150,

   485     0x2250, 0x2350, 0x2450, 0x2550, 0x2650, 0x2750, 0x2850, 0x2950,

   486     0x2A70, 0x2B70, 0x2C70, 0x2D70, 0x2E70, 0x2F70, 0x3050, 0x3150,

   487     0x3250, 0x3350, 0x3450, 0x3550, 0x3650, 0x3750, 0x3850, 0x3950,

   488     0x3A70, 0x3B70, 0x3C70, 0x3D70, 0x3E70, 0x3F70, 0x4050, 0x4150,

   489     0x4250, 0x4350, 0x4450, 0x4550, 0x4650, 0x4750, 0x4850, 0x4950,

   490     0x4A70, 0x4B70, 0x4C70, 0x4D70, 0x4E70, 0x4F70, 0x5050, 0x5150,

   491     0x5250, 0x5350, 0x5450, 0x5550, 0x5650, 0x5750, 0x5850, 0x5950,

   492     0x5A70, 0x5B70, 0x5C70, 0x5D70, 0x5E70, 0x5F70, 0x6050, 0x6150,

   493     0x6250, 0x6350, 0x6450, 0x6550, 0x6650, 0x6750, 0x6850, 0x6950,

   494     0x6A70, 0x6B70, 0x6C70, 0x6D70, 0x6E70, 0x6F70, 0x7050, 0x7150,

   495     0x7250, 0x7350, 0x7450, 0x7550, 0x7650, 0x7750, 0x7850, 0x7950,

   496     0x7A70, 0x7B70, 0x7C70, 0x7D70, 0x7E70, 0x7F70, 0x8050, 0x8150,

   497     0x8250, 0x8350, 0x8450, 0x8550, 0x8650, 0x8750, 0x8850, 0x8950,

   498     0x8A70, 0x8B70, 0x8C70, 0x8D70, 0x8E70, 0x8F70, 0x9050, 0x9150,

   499     0x9250, 0x9350, 0x9450, 0x9550, 0x9650, 0x9750, 0x9850, 0x9950,

   500   };

   501 

   502 u8 ZeroTable[] =

   503   {

   504     0x80, 0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   505     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   506     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   507     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   508     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   509     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   510     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   511     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   512     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   513     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   514     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   515     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   516     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   517     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   518     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,

   519     0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0,	0,	  0

   520   };

   521 

   522 #define GBSAVE_GAME_VERSION_1 1

   523 #define GBSAVE_GAME_VERSION_2 2

   524 #define GBSAVE_GAME_VERSION_3 3

   525 #define GBSAVE_GAME_VERSION_4 4

   526 #define GBSAVE_GAME_VERSION_5 5

   527 #define GBSAVE_GAME_VERSION_6 6

   528 #define GBSAVE_GAME_VERSION_7 7

   529 #define GBSAVE_GAME_VERSION_8 8

   530 #define GBSAVE_GAME_VERSION_9 9

   531 #define GBSAVE_GAME_VERSION_10 10

   532 #define GBSAVE_GAME_VERSION_11 11

   533 #define GBSAVE_GAME_VERSION_12 12

   534 #define GBSAVE_GAME_VERSION_13 13

   535 #define GBSAVE_GAME_VERSION GBSAVE_GAME_VERSION_13

   536 

   537 int inline gbGetValue(int min, int max, int v)

   538 {

   539   return (int)(min + (float)(max - min) * (2.0 * (v / 31.0) - (v / 31.0) * (v / 31.0)));

   540 }

   541 

   542 void gbGenFilter()

   543 {

   544   for (int r = 0; r < 32; r++)

   545     {

   546       for (int g = 0; g < 32; g++)

   547 	{

   548 	  for (int b = 0; b < 32; b++)

   549 	    {

   550 	      int nr = gbGetValue(gbGetValue(4, 14, g),

   551 				  gbGetValue(24, 29, g), r) - 4;

   552 	      int ng = gbGetValue(gbGetValue(4 + gbGetValue(0, 5, r),

   553 					     14 + gbGetValue(0, 3, r), b),

   554 				  gbGetValue(24 + gbGetValue(0, 3, r),

   555 					     29 + gbGetValue(0, 1, r), b), g) - 4;

   556 	      int nb = gbGetValue(gbGetValue(4 + gbGetValue(0, 5, r),

   557 					     14 + gbGetValue(0, 3, r), g),

   558 				  gbGetValue(24 + gbGetValue(0, 3, r),

   559 					     29 + gbGetValue(0, 1, r), g), b) - 4;

   560 	      gbColorFilter[(b << 10) | (g << 5) | r] = (nb << 10) | (ng << 5) | nr;

   561 	    }

   562 	}

   563     }

   564 }

   565 

   566 void gbCopyMemory(u16 d, u16 s, int count)

   567 {

   568   while (count)

   569     {

   570       gbWriteMemoryQuick(d, gbReadMemoryQuick(s));

   571       s++;

   572       d++;

   573       count--;

   574     }

   575 }

   576 

   577 void gbDoHdma()

   578 {

   579   gbCopyMemory(gbHdmaDestination, gbHdmaSource, 0x10);

   580 

   581   gbHdmaDestination += 0x10;

   582   gbHdmaSource	  += 0x10;

   583 

   584   register_HDMA2 = (register_HDMA2 + 0x10) & 0xFF;

   585   if (register_HDMA2 == 0x00)

   586     register_HDMA1++;

   587 

   588   register_HDMA4 = (register_HDMA4 + 0x10) & 0xFF;

   589   if (register_HDMA4 == 0x00)

   590     register_HDMA3++;

   591 

   592   if (gbHdmaDestination == 0x96b0)

   593     gbHdmaBytes = gbHdmaBytes;

   594   gbHdmaBytes -= 0x10;

   595   register_HDMA5--;

   596   if (register_HDMA5 == 0xff)

   597     gbHdmaOn = 0;

   598 }

   599 

   600 // fix for Harley and Lego Racers

   601 void gbCompareLYToLYC()

   602 {

   603   if (register_LY == register_LYC)

   604     {

   605       // mark that we have a match

   606       register_STAT |= 4;

   607 

   608       // check if we need an interrupt

   609       if ((register_STAT & 0x40) && (register_IE & 2))

   610 	gbInterrupt |= 2;

   611     }

   612   else   // no match

   613     register_STAT &= 0xfb;

   614 }

   615 

   616 // FIXME: horrible kludge to workaround the frame timing bug

   617 static int32 s_gbJoymask[4] = { 0, 0, 0, 0 };

   618 

   619 void gbWriteMemoryWrapped(register u16 address, register u8 value)

   620 {

   621   if (address < 0x8000)

   622     {

   623 #ifndef FINAL_VERSION

   624       if (memorydebug && (address > 0x3fff || address < 0x2000))

   625 	{

   626 	  log("Memory register write %04x=%02x PC=%04x\n",

   627 	      address,

   628 	      value,

   629 	      PC.W);

   630 	}

   631 #endif

   632       if (mapper)

   633 	(*mapper)(address, value);

   634       return;

   635     }

   636 

   637   if (address < 0xa000)

   638     {

   639       gbWriteMemoryQuick(address, value);

   640       return;

   641     }

   642 

   643   if (address < 0xc000)

   644     {

   645 #ifndef FINAL_VERSION

   646       if (memorydebug)

   647 	{

   648 	  log("Memory register write %04x=%02x PC=%04x\n",

   649 	      address,

   650 	      value,

   651 	      PC.W);

   652 	}

   653 #endif

   654 

   655       if (mapper)

   656 	(*mapperRAM)(address, value);

   657       return;

   658     }

   659 

   660   if (address < 0xfe00)

   661     {

   662       gbWriteMemoryQuick(address, value);

   663       return;

   664     }

   665 

   666   if (address < 0xff00)

   667     {

   668       gbMemory[address] = value;

   669       return;

   670     }

   671 

   672   switch (address & 0x00ff)

   673     {

   674     case 0x00:

   675       {

   676 	gbMemory[0xff00] = ((gbMemory[0xff00] & 0xcf) |

   677 			    (value & 0x30));

   678 	if (gbSgbMode)

   679 	  {

   680 	    gbSgbDoBitTransfer(value);

   681 	  }

   682 

   683 	return;

   684       }

   685 

   686     case 0x01:

   687       {

   688 	gbMemory[0xff01] = value;

   689 	return;

   690       }

   691 

   692       // serial control

   693     case 0x02:

   694       {

   695 	gbSerialOn		 = (value & 0x80);

   696 	gbMemory[0xff02] = value;

   697 	if (gbSerialOn)

   698 	  {

   699 	    gbSerialTicks = GBSERIAL_CLOCK_TICKS;

   700 #ifdef LINK_EMULATION

   701 	    if (linkConnected)

   702 	      {

   703 		if (value & 1)

   704 		  {

   705 		    linkSendByte(0x100 | gbMemory[0xFF01]);

   706 		    Sleep(5);

   707 		  }

   708 	      }

   709 #endif

   710 	  }

   711 

   712 	gbSerialBits = 0;

   713 	return;

   714       }

   715 

   716       // DIV register resets on any write

   717     case 0x04:

   718       {

   719 	register_DIV = 0;

   720 	return;

   721       }

   722     case 0x05:

   723       register_TIMA = value;

   724       return;

   725 

   726     case 0x06:

   727       register_TMA = value;

   728       return;

   729 

   730       // TIMER control

   731     case 0x07:

   732       {

   733 	register_TAC = value;

   734 

   735 	gbTimerOn	= (value & 4);

   736 	gbTimerMode = value & 3;

   737 	//    register_TIMA = register_TMA;

   738 	switch (gbTimerMode)

   739 	  {

   740 	  case 0:

   741 	    gbTimerClockTicks = gbTimerTicks = GBTIMER_MODE_0_CLOCK_TICKS;

   742 	    break;

   743 	  case 1:

   744 	    gbTimerClockTicks = gbTimerTicks = GBTIMER_MODE_1_CLOCK_TICKS;

   745 	    break;

   746 	  case 2:

   747 	    gbTimerClockTicks = gbTimerTicks = GBTIMER_MODE_2_CLOCK_TICKS;

   748 	    break;

   749 	  case 3:

   750 	    gbTimerClockTicks = gbTimerTicks = GBTIMER_MODE_3_CLOCK_TICKS;

   751 	    break;

   752 	  }

   753 	return;

   754       }

   755 

   756     case 0x0f:

   757       {

   758 	register_IF = value;

   759 	gbInterrupt = value;

   760 	return;

   761       }

   762 

   763     case 0x10:

   764     case 0x11:

   765     case 0x12:

   766     case 0x13:

   767     case 0x14:

   768     case 0x15:

   769     case 0x16:

   770     case 0x17:

   771     case 0x18:

   772     case 0x19:

   773     case 0x1a:

   774     case 0x1b:

   775     case 0x1c:

   776     case 0x1d:

   777     case 0x1e:

   778     case 0x1f:

   779     case 0x20:

   780     case 0x21:

   781     case 0x22:

   782     case 0x23:

   783     case 0x24:

   784     case 0x25:

   785     case 0x26:

   786       {

   787 	SOUND_EVENT(address, value);

   788 	return;

   789       }

   790     case 0x40:

   791       {

   792 	int lcdChange = (register_LCDC & 0x80) ^ (value & 0x80);

   793 

   794 	if (lcdChange)

   795 	  {

   796 	    if (value & 0x80)

   797 	      {

   798 		gbLcdTicks	   = GBLCD_MODE_1_CLOCK_TICKS;

   799 		gbLcdMode	   = 0;

   800 		register_STAT &= 0xfc;

   801 		register_LY	   = 0x00;

   802 		// FIXME: horrible workaround

   803 		if (gbNullInputHackTempEnabled && !useOldFrameTiming)

   804 		  memcpy(gbJoymask, s_gbJoymask, sizeof(gbJoymask));

   805 	      }

   806 	    else

   807 	      {

   808 		gbLcdTicks	   = 0;

   809 		gbLcdMode	   = 0;

   810 		register_STAT &= 0xfc;

   811 		register_LY	   = 0x00;

   812 		// FIXME: horrible workaround

   813 		memcpy(s_gbJoymask, gbJoymask, sizeof(gbJoymask));

   814 		if (gbNullInputHackTempEnabled && !useOldFrameTiming)

   815 		  memset(gbJoymask, 0, sizeof(gbJoymask));

   816 	      }

   817 	    //      compareLYToLYC();

   818 	  }

   819 	// don't draw the window if it was not enabled and not being drawn before

   820 	if (!(register_LCDC & 0x20) && (value & 0x20) && gbWindowLine == -1 &&

   821 	    register_LY > register_WY)

   822 	  gbWindowLine = 144;

   823 

   824 	register_LCDC = value;

   825 

   826 	return;

   827       }

   828 

   829       // STAT

   830     case 0x41:

   831       {

   832 	//register_STAT = (register_STAT & 0x87) |

   833 	//      (value & 0x7c);

   834 	register_STAT = (value & 0xf8) | (register_STAT & 0x07);     // fix ?

   835 	// GB bug from Devrs FAQ

   836 	if (!gbCgbMode && (register_LCDC & 0x80) && gbLcdMode < 2)

   837 	  gbInterrupt |= 2;

   838 	return;

   839       }

   840 

   841       // SCY

   842     case 0x42:

   843       {

   844 	register_SCY = value;

   845 	return;

   846       }

   847 

   848       // SCX

   849     case 0x43:

   850       {

   851 	register_SCX = value;

   852 	return;

   853       }

   854 

   855       // LY

   856     case 0x44:

   857       {

   858 	// read only

   859 	return;

   860       }

   861 

   862       // LYC

   863     case 0x45:

   864       {

   865 	register_LYC = value;

   866 	if ((register_LCDC & 0x80))

   867 	  {

   868 	    gbCompareLYToLYC();

   869 	  }

   870 	return;

   871       }

   872 

   873       // DMA!

   874     case 0x46:

   875       {

   876 	int source = value * 0x0100;

   877 

   878 	gbCopyMemory(0xfe00,

   879 		     source,

   880 		     0xa0);

   881 	register_DMA = value;

   882 	return;

   883       }

   884 

   885       // BGP

   886     case 0x47:

   887       {

   888 	gbBgp[0] = value & 0x03;

   889 	gbBgp[1] = (value & 0x0c) >> 2;

   890 	gbBgp[2] = (value & 0x30) >> 4;

   891 	gbBgp[3] = (value & 0xc0) >> 6;

   892 	break;

   893       }

   894 

   895       // OBP0

   896     case 0x48:

   897       {

   898 	gbObp0[0] = value & 0x03;

   899 	gbObp0[1] = (value & 0x0c) >> 2;

   900 	gbObp0[2] = (value & 0x30) >> 4;

   901 	gbObp0[3] = (value & 0xc0) >> 6;

   902 	break;

   903       }

   904 

   905       // OBP1

   906     case 0x49:

   907       {

   908 	gbObp1[0] = value & 0x03;

   909 	gbObp1[1] = (value & 0x0c) >> 2;

   910 	gbObp1[2] = (value & 0x30) >> 4;

   911 	gbObp1[3] = (value & 0xc0) >> 6;

   912 	break;

   913       }

   914 

   915     case 0x4a:

   916       register_WY = value;

   917       return;

   918 

   919     case 0x4b:

   920       register_WX = value;

   921       return;

   922 

   923       // KEY1

   924     case 0x4d:

   925       {

   926 	if (gbCgbMode)

   927 	  {

   928 	    gbMemory[0xff4d] = (gbMemory[0xff4d] & 0x80) | (value & 1);

   929 	    return;

   930 	  }

   931 	break;

   932       }

   933 

   934       // VBK

   935     case 0x4f:

   936       {

   937 	if (gbCgbMode)

   938 	  {

   939 	    value = value & 1;

   940 	    if (value == gbVramBank)

   941 	      return;

   942 

   943 	    int vramAddress = value * 0x2000;

   944 	    gbMemoryMap[0x08] = &gbVram[vramAddress];

   945 	    gbMemoryMap[0x09] = &gbVram[vramAddress + 0x1000];

   946 

   947 	    gbVramBank	 = value;

   948 	    register_VBK = value;

   949 	  }

   950 	return;

   951 	break;

   952       }

   953 

   954       // HDMA1

   955     case 0x51:

   956       {

   957 	if (gbCgbMode)

   958 	  {

   959 	    if (value > 0x7f && value < 0xa0)

   960 	      value = 0;

   961 

   962 	    gbHdmaSource = (value << 8) | (register_HDMA2 & 0xf0);

   963 

   964 	    register_HDMA1 = value;

   965 	    return;

   966 	  }

   967 	break;

   968       }

   969 

   970       // HDMA2

   971     case 0x52:

   972       {

   973 	if (gbCgbMode)

   974 	  {

   975 	    value = value & 0xf0;

   976 

   977 	    gbHdmaSource = (register_HDMA1 << 8) | (value);

   978 

   979 	    register_HDMA2 = value;

   980 	    return;

   981 	  }

   982 	break;

   983       }

   984 

   985       // HDMA3

   986     case 0x53:

   987       {

   988 	if (gbCgbMode)

   989 	  {

   990 	    value = value & 0x1f;

   991 	    gbHdmaDestination  = (value << 8) | (register_HDMA4 & 0xf0);

   992 	    gbHdmaDestination += 0x8000;

   993 	    register_HDMA3	   = value;

   994 	    return;

   995 	  }

   996 	break;

   997       }

   998 

   999       // HDMA4

  1000     case 0x54:

  1001       {

  1002 	if (gbCgbMode)

  1003 	  {

  1004 	    value = value & 0xf0;

  1005 	    gbHdmaDestination  = ((register_HDMA3 & 0x1f) << 8) | value;

  1006 	    gbHdmaDestination += 0x8000;

  1007 	    register_HDMA4	   = value;

  1008 	    return;

  1009 	  }

  1010 	break;

  1011       }

  1012 

  1013       // HDMA5

  1014     case 0x55:

  1015       {

  1016 	if (gbCgbMode)

  1017 	  {

  1018 	    gbHdmaBytes = 16 + (value & 0x7f) * 16;

  1019 	    if (gbHdmaOn)

  1020 	      {

  1021 		if (value & 0x80)

  1022 		  {

  1023 		    register_HDMA5 = (value & 0x7f);

  1024 		  }

  1025 		else

  1026 		  {

  1027 		    register_HDMA5 = 0xff;

  1028 		    gbHdmaOn	   = 0;

  1029 		  }

  1030 	      }

  1031 	    else

  1032 	      {

  1033 		if (value & 0x80)

  1034 		  {

  1035 		    gbHdmaOn	   = 1;

  1036 		    register_HDMA5 = value & 0x7f;

  1037 		    if (gbLcdMode == 0)

  1038 		      gbDoHdma();

  1039 		  }

  1040 		else

  1041 		  {

  1042 		    // we need to take the time it takes to complete the transfer into

  1043 		    // account... according to GB DEV FAQs, the setup time is the same

  1044 		    // for single and double speed, but the actual transfer takes the

  1045 		    // same time // (is that a typo?)

  1046 		    switch (gbDMASpeedVersion)

  1047 		      {

  1048 		      case 1:     // I believe this is more correct

  1049 			// the lower 7 bits of FF55 specify the Transfer Length (divided by 16, minus 1)

  1050 			// and we make gbDmaTicks twice as many cycles at double speed to make the transfer take the same time

  1051 			if (gbSpeed)

  1052 			  gbDmaTicks = 16 * ((value & 0x7f) + 1);

  1053 			else

  1054 			  gbDmaTicks = 8 * ((value & 0x7f) + 1);

  1055 			break;

  1056 		      case 0:     // here for backward compatibility

  1057 			// I think this was a guess that approximates the above in most but not all games

  1058 			if (gbSpeed)

  1059 			  gbDmaTicks = 231 + 16 * (value & 0x7f);

  1060 			else

  1061 			  gbDmaTicks = 231 + 8 * (value & 0x7f);

  1062 			break;

  1063 		      default:     // shouldn't happen

  1064 			//assert(0);

  1065 			break;

  1066 		      }

  1067 		    gbCopyMemory(gbHdmaDestination, gbHdmaSource, gbHdmaBytes);

  1068 		    gbHdmaDestination += gbHdmaBytes;

  1069 		    gbHdmaSource	  += gbHdmaBytes;

  1070 

  1071 		    register_HDMA3 = ((gbHdmaDestination - 0x8000) >> 8) & 0x1f;

  1072 		    register_HDMA4 = gbHdmaDestination & 0xf0;

  1073 		    register_HDMA1 = (gbHdmaSource >> 8) & 0xff;

  1074 		    register_HDMA2 = gbHdmaSource & 0xf0;

  1075 		  }

  1076 	      }

  1077 	    return;

  1078 	  }

  1079 	break;

  1080       }

  1081 

  1082       // BCPS

  1083     case 0x68:

  1084       {

  1085 	if (gbCgbMode)

  1086 	  {

  1087 	    int paletteIndex = (value & 0x3f) >> 1;

  1088 	    int paletteHiLo	 = (value & 0x01);

  1089 

  1090 	    gbMemory[0xff68] = value;

  1091 	    gbMemory[0xff69] = (paletteHiLo ?

  1092 				(gbPalette[paletteIndex] >> 8) :

  1093 				(gbPalette[paletteIndex] & 0x00ff));

  1094 	    return;

  1095 	  }

  1096 	break;

  1097       }

  1098 

  1099       // BCPD

  1100     case 0x69:

  1101       {

  1102 	if (gbCgbMode)

  1103 	  {

  1104 	    int v = gbMemory[0xff68];

  1105 	    int paletteIndex = (v & 0x3f) >> 1;

  1106 	    int paletteHiLo	 = (v & 0x01);

  1107 	    gbMemory[0xff69]		= value;

  1108 	    gbPalette[paletteIndex] = (paletteHiLo ?

  1109 				       ((value << 8) | (gbPalette[paletteIndex] & 0xff)) :

  1110 				       ((gbPalette[paletteIndex] & 0xff00) | (value))) & 0x7fff;

  1111 

  1112 	    if (gbMemory[0xff68] & 0x80)

  1113 	      {

  1114 		int index = ((gbMemory[0xff68] & 0x3f) + 1) & 0x3f;

  1115 

  1116 		gbMemory[0xff68] = (gbMemory[0xff68] & 0x80) | index;

  1117 

  1118 		gbMemory[0xff69] = (index & 1 ?

  1119 				    (gbPalette[index >> 1] >> 8) :

  1120 				    (gbPalette[index >> 1] & 0x00ff));

  1121 	      }

  1122 	    return;

  1123 	  }

  1124 	break;

  1125       }

  1126 

  1127       // OCPS

  1128     case 0x6a:

  1129       {

  1130 	if (gbCgbMode)

  1131 	  {

  1132 	    int paletteIndex = (value & 0x3f) >> 1;

  1133 	    int paletteHiLo	 = (value & 0x01);

  1134 

  1135 	    paletteIndex += 32;

  1136 

  1137 	    gbMemory[0xff6a] = value;

  1138 	    gbMemory[0xff6b] = (paletteHiLo ?

  1139 				(gbPalette[paletteIndex] >> 8) :

  1140 				(gbPalette[paletteIndex] & 0x00ff));

  1141 	    return;

  1142 	  }

  1143 	break;

  1144       }

  1145 

  1146       // OCPD

  1147     case 0x6b:

  1148       {

  1149 	if (gbCgbMode)

  1150 	  {

  1151 	    int v = gbMemory[0xff6a];

  1152 	    int paletteIndex = (v & 0x3f) >> 1;

  1153 	    int paletteHiLo	 = (v & 0x01);

  1154 

  1155 	    paletteIndex += 32;

  1156 

  1157 	    gbMemory[0xff6b]		= value;

  1158 	    gbPalette[paletteIndex] = (paletteHiLo ?

  1159 				       ((value << 8) | (gbPalette[paletteIndex] & 0xff)) :

  1160 				       ((gbPalette[paletteIndex] & 0xff00) | (value))) & 0x7fff;

  1161 	    if (gbMemory[0xff6a] & 0x80)

  1162 	      {

  1163 		int index = ((gbMemory[0xff6a] & 0x3f) + 1) & 0x3f;

  1164 

  1165 		gbMemory[0xff6a] = (gbMemory[0xff6a] & 0x80) | index;

  1166 

  1167 		gbMemory[0xff6b] = (index & 1 ?

  1168 				    (gbPalette[(index >> 1) + 32] >> 8) :

  1169 				    (gbPalette[(index >> 1) + 32] & 0x00ff));

  1170 	      }

  1171 	    return;

  1172 	  }

  1173 	break;

  1174       }

  1175 

  1176       // SVBK

  1177     case 0x70:

  1178       {

  1179 	if (gbCgbMode)

  1180 	  {

  1181 	    value = value & 7;

  1182 

  1183 	    int bank = value;

  1184 	    if (value == 0)

  1185 	      bank = 1;

  1186 

  1187 	    if (bank == gbWramBank)

  1188 	      return;

  1189 

  1190 	    int wramAddress = bank * 0x1000;

  1191 	    gbMemoryMap[0x0d] = &gbWram[wramAddress];

  1192 

  1193 	    gbWramBank	  = bank;

  1194 	    register_SVBK = value;

  1195 	    return;

  1196 	  }

  1197 	break;

  1198       }

  1199 

  1200     case 0xff:

  1201       {

  1202 	register_IE	 = value;

  1203 	register_IF &= value;

  1204 	return;

  1205       }

  1206     }

  1207 

  1208   gbWriteMemoryQuick(address, value);

  1209 }

  1210 

  1211 u8 gbReadOpcode(register u16 address)

  1212 {

  1213   if (gbCheatMap[address])

  1214     return gbCheatRead(address);

  1215 

  1216   // the following fix does more than Echo RAM fix, anyway...

  1217   switch (gbEchoRAMFixOn ? (address >> 12) & 0x000f : address & 0xf000)

  1218     {

  1219     case 0x0a:

  1220     case 0x0b:

  1221       if (mapperReadRAM)

  1222 	return mapperReadRAM(address);

  1223       break;

  1224     case 0x0f:

  1225       if (address > 0xff00)

  1226 	{

  1227 	  switch (address & 0x00ff)

  1228 	    {

  1229 	    case 0x04:

  1230 	      return register_DIV;

  1231 	    case 0x05:

  1232 	      return register_TIMA;

  1233 	    case 0x06:

  1234 	      return register_TMA;

  1235 	    case 0x07:

  1236 	      return (0xf8 | register_TAC);

  1237 	    case 0x0f:

  1238 	      return (0xe0 | register_IF);

  1239 	    case 0x40:

  1240 	      return register_LCDC;

  1241 	    case 0x41:

  1242 	      return (0x80 | register_STAT);

  1243 	    case 0x42:

  1244 	      return register_SCY;

  1245 	    case 0x43:

  1246 	      return register_SCX;

  1247 	    case 0x44:

  1248 	      return register_LY;

  1249 	    case 0x45:

  1250 	      return register_LYC;

  1251 	    case 0x46:

  1252 	      return register_DMA;

  1253 	    case 0x4a:

  1254 	      return register_WY;

  1255 	    case 0x4b:

  1256 	      return register_WX;

  1257 	    case 0x4f:

  1258 	      return (0xfe | register_VBK);

  1259 	    case 0x51:

  1260 	      return register_HDMA1;

  1261 	    case 0x52:

  1262 	      return register_HDMA2;

  1263 	    case 0x53:

  1264 	      return register_HDMA3;

  1265 	    case 0x54:

  1266 	      return register_HDMA4;

  1267 	    case 0x55:

  1268 	      return register_HDMA5;

  1269 	    case 0x70:

  1270 	      return (0xf8 | register_SVBK);

  1271 	    case 0xff:

  1272 	      return register_IE;

  1273 	    }

  1274 	}

  1275       break;

  1276     }

  1277   return gbReadMemoryQuick(address);

  1278 }

  1279 

  1280 void gbWriteMemory(register u16 address, register u8 value)

  1281 {

  1282   gbWriteMemoryWrapped(address, value);

  1283   //CallRegisteredLuaMemHook(address, 1, value, LUAMEMHOOK_WRITE);

  1284 }

  1285 

  1286 u8 gbReadMemory(register u16 address)

  1287 {

  1288   if (gbCheatMap[address])

  1289     return gbCheatRead(address);

  1290 

  1291   if (address < 0xa000)

  1292     return gbReadMemoryQuick(address);

  1293 

  1294   if (address < 0xc000)

  1295     {

  1296 #ifndef FINAL_VERSION

  1297       if (memorydebug)

  1298 	{

  1299 	  log("Memory register read %04x PC=%04x\n",

  1300 	      address,

  1301 	      PC.W);

  1302 	}

  1303 #endif

  1304 

  1305       if (mapperReadRAM)

  1306 	return mapperReadRAM(address);

  1307       return gbReadMemoryQuick(address);

  1308     }

  1309 

  1310   if (address >= 0xff00)

  1311     {

  1312       switch (address & 0x00ff)

  1313 	{

  1314 	case 0x00:

  1315 	  {

  1316 	    if (gbSgbMode)

  1317 	      {

  1318 		gbSgbReadingController |= 4;

  1319 		gbSgbResetPacketState();

  1320 	      }

  1321 

  1322 	    int b = gbMemory[0xff00];

  1323 

  1324 	    if ((b & 0x30) == 0x20)

  1325 	      {

  1326 		b &= 0xf0;

  1327 

  1328 		int joy = 0;

  1329 		if (gbSgbMode && gbSgbMultiplayer)

  1330 		  {

  1331 		    switch (gbSgbNextController)

  1332 		      {

  1333 		      case 0x0f:

  1334 			joy = 0;

  1335 			break;

  1336 		      case 0x0e:

  1337 			joy = 1;

  1338 			break;

  1339 		      case 0x0d:

  1340 			joy = 2;

  1341 			break;

  1342 		      case 0x0c:

  1343 			joy = 3;

  1344 			break;

  1345 		      default:

  1346 			joy = 0;

  1347 		      }

  1348 		  }

  1349 		int joystate = gbJoymask[joy];

  1350 		if (!(joystate & 128))

  1351 		  b |= 0x08;

  1352 		if (!(joystate & 64))

  1353 		  b |= 0x04;

  1354 		if (!(joystate & 32))

  1355 		  b |= 0x02;

  1356 		if (!(joystate & 16))

  1357 		  b |= 0x01;

  1358 

  1359 		gbMemory[0xff00] = b;

  1360 	      }

  1361 	    else if ((b & 0x30) == 0x10)

  1362 	      {

  1363 		b &= 0xf0;

  1364 

  1365 		int joy = 0;

  1366 		if (gbSgbMode && gbSgbMultiplayer)

  1367 		  {

  1368 		    switch (gbSgbNextController)

  1369 		      {

  1370 		      case 0x0f:

  1371 			joy = 0;

  1372 			break;

  1373 		      case 0x0e:

  1374 			joy = 1;

  1375 			break;

  1376 		      case 0x0d:

  1377 			joy = 2;

  1378 			break;

  1379 		      case 0x0c:

  1380 			joy = 3;

  1381 			break;

  1382 		      default:

  1383 			joy = 0;

  1384 		      }

  1385 		  }

  1386 		int joystate = gbJoymask[joy];

  1387 		if (!(joystate & 8))

  1388 		  b |= 0x08;

  1389 		if (!(joystate & 4))

  1390 		  b |= 0x04;

  1391 		if (!(joystate & 2))

  1392 		  b |= 0x02;

  1393 		if (!(joystate & 1))

  1394 		  b |= 0x01;

  1395 

  1396 		gbMemory[0xff00] = b;

  1397 	      }

  1398 	    else

  1399 	      {

  1400 		if (gbSgbMode && gbSgbMultiplayer)

  1401 		  {

  1402 		    gbMemory[0xff00] = 0xf0 | gbSgbNextController;

  1403 		  }

  1404 		else

  1405 		  {

  1406 		    gbMemory[0xff00] = 0xff;

  1407 		  }

  1408 	      }

  1409 	  }

  1410 	  GBSystemCounters.lagged = false;

  1411 	  return gbMemory[0xff00];

  1412 	  break;

  1413 	case 0x01:

  1414 	  return gbMemory[0xff01];

  1415 	case 0x04:

  1416 	  return register_DIV;

  1417 	case 0x05:

  1418 	  return register_TIMA;

  1419 	case 0x06:

  1420 	  return register_TMA;

  1421 	case 0x07:

  1422 	  return (0xf8 | register_TAC);

  1423 	case 0x0f:

  1424 	  return (0xe0 | register_IF);

  1425 	case 0x40:

  1426 	  return register_LCDC;

  1427 	case 0x41:

  1428 	  return (0x80 | register_STAT);

  1429 	case 0x42:

  1430 	  return register_SCY;

  1431 	case 0x43:

  1432 	  return register_SCX;

  1433 	case 0x44:

  1434 	  return register_LY;

  1435 	case 0x45:

  1436 	  return register_LYC;

  1437 	case 0x46:

  1438 	  return register_DMA;

  1439 	case 0x4a:

  1440 	  return register_WY;

  1441 	case 0x4b:

  1442 	  return register_WX;

  1443 	case 0x4f:

  1444 	  return (0xfe | register_VBK);

  1445 	case 0x51:

  1446 	  return register_HDMA1;

  1447 	case 0x52:

  1448 	  return register_HDMA2;

  1449 	case 0x53:

  1450 	  return register_HDMA3;

  1451 	case 0x54:

  1452 	  return register_HDMA4;

  1453 	case 0x55:

  1454 	  return register_HDMA5;

  1455 	case 0x70:

  1456 	  return (0xf8 | register_SVBK);

  1457 	case 0xff:

  1458 	  return register_IE;

  1459 	}

  1460     }

  1461 

  1462   return gbReadMemoryQuick(address);

  1463 }

  1464 

  1465 void gbVblank_interrupt()

  1466 {

  1467   if (IFF & 0x80)

  1468     {

  1469       PC.W++;

  1470       IFF &= 0x7f;

  1471     }

  1472   gbInterrupt &= 0xfe;

  1473 

  1474   IFF			&= 0x7e;

  1475   register_IF &= 0xfe;

  1476 

  1477   gbWriteMemory(--SP.W, PC.B.B1);

  1478   gbWriteMemory(--SP.W, PC.B.B0);

  1479   PC.W = 0x40;

  1480 }

  1481 

  1482 void gbLcd_interrupt()

  1483 {

  1484   if (IFF & 0x80)

  1485     {

  1486       PC.W++;

  1487       IFF &= 0x7f;

  1488     }

  1489   gbInterrupt &= 0xfd;

  1490   IFF			&= 0x7e;

  1491   register_IF &= 0xfd;

  1492 

  1493   gbWriteMemory(--SP.W, PC.B.B1);

  1494   gbWriteMemory(--SP.W, PC.B.B0);

  1495 

  1496   PC.W = 0x48;

  1497 }

  1498 

  1499 void gbTimer_interrupt()

  1500 {

  1501   if (IFF & 0x80)

  1502     {

  1503       PC.W++;

  1504       IFF &= 0x7f;

  1505     }

  1506   IFF			&= 0x7e;

  1507   gbInterrupt &= 0xfb;

  1508   register_IF &= 0xfb;

  1509 

  1510   gbWriteMemory(--SP.W, PC.B.B1);

  1511   gbWriteMemory(--SP.W, PC.B.B0);

  1512 

  1513   PC.W = 0x50;

  1514 }

  1515 

  1516 void gbSerial_interrupt()

  1517 {

  1518   if (IFF & 0x80)

  1519     {

  1520       PC.W++;

  1521       IFF &= 0x7f;

  1522     }

  1523   IFF			&= 0x7e;

  1524   gbInterrupt &= 0xf7;

  1525   register_IF &= 0xf7;

  1526 

  1527   gbWriteMemory(--SP.W, PC.B.B1);

  1528   gbWriteMemory(--SP.W, PC.B.B0);

  1529 

  1530   PC.W = 0x58;

  1531 }

  1532 

  1533 void gbJoypad_interrupt()

  1534 {

  1535   if (IFF & 0x80)

  1536     {

  1537       PC.W++;

  1538       IFF &= 0x7f;

  1539     }

  1540   IFF			&= 0x7e;

  1541   gbInterrupt &= 0xef;

  1542   register_IF &= 0xef;

  1543 

  1544   gbWriteMemory(--SP.W, PC.B.B1);

  1545   gbWriteMemory(--SP.W, PC.B.B0);

  1546 

  1547   PC.W = 0x60;

  1548 }

  1549 

  1550 void gbSpeedSwitch()

  1551 {

  1552   if (gbSpeed == 0)

  1553     {

  1554       gbSpeed = 1;

  1555       GBLCD_MODE_0_CLOCK_TICKS   = 51 * 2; //127; //51 * 2;

  1556       GBLCD_MODE_1_CLOCK_TICKS   = 1140 * 2;

  1557       GBLCD_MODE_2_CLOCK_TICKS   = 20 * 2; //52; //20 * 2;

  1558       GBLCD_MODE_3_CLOCK_TICKS   = 43 * 2; //99; //43 * 2;

  1559       GBDIV_CLOCK_TICKS		   = 64 * 2;

  1560       GBLY_INCREMENT_CLOCK_TICKS = 114 * 2;

  1561       GBTIMER_MODE_0_CLOCK_TICKS = 256; //256*2;

  1562       GBTIMER_MODE_1_CLOCK_TICKS = 4; //4*2;

  1563       GBTIMER_MODE_2_CLOCK_TICKS = 16; //16*2;

  1564       GBTIMER_MODE_3_CLOCK_TICKS = 64; //64*2;

  1565       GBSERIAL_CLOCK_TICKS	   = 128 * 2;

  1566       gbDivTicks *= 2;

  1567       gbLcdTicks *= 2;

  1568       gbLcdLYIncrementTicks *= 2;

  1569       //    timerTicks *= 2;

  1570       //    timerClockTicks *= 2;

  1571       gbSerialTicks	 *= 2;

  1572       SOUND_CLOCK_TICKS = soundQuality * GB_USE_TICKS_AS * 2;

  1573       soundTicks		 *= 2;

  1574       //    synchronizeTicks *= 2;

  1575       //    SYNCHRONIZE_CLOCK_TICKS *= 2;

  1576     }

  1577   else

  1578     {

  1579       gbSpeed = 0;

  1580       GBLCD_MODE_0_CLOCK_TICKS   = 51;

  1581       GBLCD_MODE_1_CLOCK_TICKS   = 1140;

  1582       GBLCD_MODE_2_CLOCK_TICKS   = 20;

  1583       GBLCD_MODE_3_CLOCK_TICKS   = 43;

  1584       GBDIV_CLOCK_TICKS		   = 64;

  1585       GBLY_INCREMENT_CLOCK_TICKS = 114;

  1586       GBTIMER_MODE_0_CLOCK_TICKS = 256;

  1587       GBTIMER_MODE_1_CLOCK_TICKS = 4;

  1588       GBTIMER_MODE_2_CLOCK_TICKS = 16;

  1589       GBTIMER_MODE_3_CLOCK_TICKS = 64;

  1590       GBSERIAL_CLOCK_TICKS	   = 128;

  1591       gbDivTicks /= 2;

  1592       gbLcdTicks /= 2;

  1593       gbLcdLYIncrementTicks /= 2;

  1594       //    timerTicks /= 2;

  1595       //    timerClockTicks /= 2;

  1596       gbSerialTicks	 /= 2;

  1597       SOUND_CLOCK_TICKS = soundQuality * GB_USE_TICKS_AS;

  1598       soundTicks		 /= 2;

  1599       //    synchronizeTicks /= 2;

  1600       //    SYNCHRONIZE_CLOCK_TICKS /= 2;

  1601     }

  1602 }

  1603 

  1604 void gbGetHardwareType()

  1605 {

  1606   gbCgbMode = 0;

  1607   if (gbRom[0x143] & 0x80)

  1608     {

  1609       if (gbEmulatorType == 0 ||

  1610 	  gbEmulatorType == 1 ||

  1611 	  gbEmulatorType == 4 ||

  1612 	  gbEmulatorType == 5 ||

  1613 	  (gbRom[0x146] != 0x03 && (gbEmulatorType == 2)))

  1614 	{

  1615 	  gbCgbMode = 1;

  1616 	}

  1617     }

  1618 

  1619   if (gbSgbMode == 2)

  1620     {

  1621       gbSgbMode = 0;

  1622       return;

  1623     }

  1624 

  1625   gbSgbMode = 0;

  1626   if (gbRom[0x146] == 0x03)

  1627     {

  1628       if (gbEmulatorType == 0 ||

  1629 	  gbEmulatorType == 2 ||

  1630 	  gbEmulatorType == 5 ||

  1631 	  (!(gbRom[0x143] & 0x80) && (gbEmulatorType == 1 || gbEmulatorType == 4)))

  1632 	gbSgbMode = 1;

  1633     }

  1634 }

  1635 

  1636 void gbReset(bool userReset)

  1637 {

  1638   // movie must be closed while opening/creating a movie

  1639   if (userReset && VBAMovieRecording())

  1640     {

  1641       VBAMovieSignalReset();

  1642       return;

  1643     }

  1644 

  1645   if (!VBAMovieActive())

  1646     {

  1647       GBSystemCounters.frameCount = 0;

  1648       GBSystemCounters.lagCount	= 0;

  1649       GBSystemCounters.extraCount = 0;

  1650       GBSystemCounters.lagged		= true;

  1651       GBSystemCounters.laggedLast = true;

  1652     }

  1653 

  1654   SP.W = 0xfffe;

  1655   AF.W = 0x01b0;

  1656   BC.W = 0x0013;

  1657   DE.W = 0x00d8;

  1658   HL.W = 0x014d;

  1659   PC.W = 0x0100;

  1660   IFF	 = 0;

  1661   gbInterrupt		= 1;

  1662   gbInterruptWait = 0;

  1663 

  1664   register_DIV   = 0;

  1665   register_TIMA  = 0;

  1666   register_TMA   = 0;

  1667   register_TAC   = 0;

  1668   register_IF	   = 1;

  1669   register_LCDC  = 0x91;

  1670   register_STAT  = 0;

  1671   register_SCY   = 0;

  1672   register_SCX   = 0;

  1673   register_LY	   = 0;

  1674   register_LYC   = 0;

  1675   register_DMA   = 0;

  1676   register_WY	   = 0;

  1677   register_WX	   = 0;

  1678   register_VBK   = 0;

  1679   register_HDMA1 = 0;

  1680   register_HDMA2 = 0;

  1681   register_HDMA3 = 0;

  1682   register_HDMA4 = 0;

  1683   register_HDMA5 = 0;

  1684   register_SVBK  = 0;

  1685   register_IE	   = 0;

  1686 

  1687   gbGetHardwareType();

  1688   if (gbCgbMode)

  1689     {

  1690       if (!gbVram)

  1691 	gbVram = (u8 *)malloc(0x4000 + 4);

  1692       if (!gbWram)

  1693 	gbWram = (u8 *)malloc(0x8000 + 4);

  1694       memset(gbVram, 0, 0x4000 + 4);

  1695       memset(gbWram, 0, 0x8000 + 4);

  1696     }

  1697   else

  1698     {

  1699       if (gbVram)

  1700 	{

  1701 	  free(gbVram);

  1702 	  gbVram = NULL;

  1703 	}

  1704       if (gbWram)

  1705 	{

  1706 	  free(gbWram);

  1707 	  gbWram = NULL;

  1708 	}

  1709     }

  1710 

  1711   // clean LineBuffer

  1712   if (gbLineBuffer)

  1713     memset(gbLineBuffer, 0, 160 * sizeof(u16));

  1714   // clean Pix

  1715   if (pix)

  1716     memset(pix, 0, 4 * 257 * 226);

  1717 

  1718   if (gbCgbMode)

  1719     {

  1720       if (gbSgbMode)

  1721 	{

  1722 	  if (gbEmulatorType == 5)

  1723 	    AF.W = 0xffb0;

  1724 	  else

  1725 	    AF.W = 0x01b0;

  1726 	  BC.W = 0x0013;

  1727 	  DE.W = 0x00d8;

  1728 	  HL.W = 0x014d;

  1729 	}

  1730       else

  1731 	{

  1732 	  AF.W = 0x11b0;

  1733 	  BC.W = 0x0000;

  1734 	  DE.W = 0xff56;

  1735 	  HL.W = 0x000d;

  1736 	}

  1737       if (gbEmulatorType == 4)

  1738 	BC.B.B1 |= 0x01;

  1739 

  1740       register_HDMA5	 = 0xff;

  1741       gbMemory[0xff68] = 0xc0;

  1742       gbMemory[0xff6a] = 0xc0;

  1743 

  1744       for (int i = 0; i < 64; i++)

  1745 	gbPalette[i] = 0x7fff;

  1746     }

  1747   else

  1748     {

  1749       for (int i = 0; i < 8; i++)

  1750 	gbPalette[i] = systemGbPalette[gbPaletteOption * 8 + i];

  1751     }

  1752 

  1753   if (gbSpeed)

  1754     {

  1755       gbSpeedSwitch();

  1756       gbMemory[0xff4d] = 0;

  1757     }

  1758 

  1759   gbDivTicks = GBDIV_CLOCK_TICKS;

  1760   gbLcdMode  = 2;

  1761   gbLcdTicks = GBLCD_MODE_2_CLOCK_TICKS;

  1762   gbLcdLYIncrementTicks = 0;

  1763   gbTimerTicks		  = 0;

  1764   gbTimerClockTicks	  = 0;

  1765   gbSerialTicks		  = 0;

  1766   gbSerialBits		  = 0;

  1767   gbSerialOn			  = 0;

  1768   gbWindowLine		  = -1;

  1769   gbTimerOn			  = 0;

  1770   gbTimerMode			  = 0;

  1771   //  gbSynchronizeTicks = GBSYNCHRONIZE_CLOCK_TICKS;

  1772   gbSpeed		 = 0;

  1773   gbJoymask[0] = gbJoymask[1] = gbJoymask[2] = gbJoymask[3] = 0;

  1774 

  1775   // FIXME: horrible kludge

  1776   memset(s_gbJoymask, 0, sizeof(s_gbJoymask));

  1777 

  1778   if (gbCgbMode)

  1779     {

  1780       gbSpeed	 = 0;

  1781       gbHdmaOn = 0;

  1782       gbHdmaSource	  = 0x0000;

  1783       gbHdmaDestination = 0x8000;

  1784       gbVramBank		  = 0;

  1785       gbWramBank		  = 1;

  1786       register_LY		  = 0x90;

  1787       gbLcdMode		  = 1;

  1788     }

  1789 

  1790   if (gbSgbMode)

  1791     {

  1792       gbSgbReset();

  1793     }

  1794 

  1795   for (int i = 0; i < 4; i++)

  1796     gbBgp[i] = gbObp0[i] = gbObp1[i] = i;

  1797 

  1798   memset(&gbDataMBC1, 0, sizeof(gbDataMBC1));

  1799   gbDataMBC1.mapperROMBank = 1;

  1800 

  1801   gbDataMBC2.mapperRAMEnable = 0;

  1802   gbDataMBC2.mapperROMBank   = 1;

  1803 

  1804   memset(&gbDataMBC3, 0, 6 * sizeof(int32));

  1805   gbDataMBC3.mapperROMBank = 1;

  1806 

  1807   memset(&gbDataMBC5, 0, sizeof(gbDataMBC5));

  1808   gbDataMBC5.mapperROMBank = 1;

  1809   switch (gbRom[0x147])

  1810     {

  1811     case 0x1c:

  1812     case 0x1d:

  1813     case 0x1e:

  1814       gbDataMBC5.isRumbleCartridge = 1;

  1815     }

  1816 

  1817   memset(&gbDataHuC1, 0, sizeof(gbDataHuC1));

  1818   gbDataHuC1.mapperROMBank = 1;

  1819 

  1820   memset(&gbDataHuC3, 0, sizeof(gbDataHuC3));

  1821   gbDataHuC3.mapperROMBank = 1;

  1822 

  1823   gbMemoryMap[0x00] = &gbRom[0x0000];

  1824   gbMemoryMap[0x01] = &gbRom[0x1000];

  1825   gbMemoryMap[0x02] = &gbRom[0x2000];

  1826   gbMemoryMap[0x03] = &gbRom[0x3000];

  1827   gbMemoryMap[0x04] = &gbRom[0x4000];

  1828   gbMemoryMap[0x05] = &gbRom[0x5000];

  1829   gbMemoryMap[0x06] = &gbRom[0x6000];

  1830   gbMemoryMap[0x07] = &gbRom[0x7000];

  1831   if (gbCgbMode)

  1832     {

  1833       gbMemoryMap[0x08] = &gbVram[0x0000];

  1834       gbMemoryMap[0x09] = &gbVram[0x1000];

  1835       gbMemoryMap[0x0a] = &gbMemory[0xa000];

  1836       gbMemoryMap[0x0b] = &gbMemory[0xb000];

  1837       gbMemoryMap[0x0c] = &gbMemory[0xc000];

  1838       gbMemoryMap[0x0d] = &gbWram[0x1000];

  1839       gbMemoryMap[0x0e] = &gbMemory[0xe000];

  1840       gbMemoryMap[0x0f] = &gbMemory[0xf000];

  1841     }

  1842   else

  1843     {

  1844       gbMemoryMap[0x08] = &gbMemory[0x8000];

  1845       gbMemoryMap[0x09] = &gbMemory[0x9000];

  1846       gbMemoryMap[0x0a] = &gbMemory[0xa000];

  1847       gbMemoryMap[0x0b] = &gbMemory[0xb000];

  1848       gbMemoryMap[0x0c] = &gbMemory[0xc000];

  1849       gbMemoryMap[0x0d] = &gbMemory[0xd000];

  1850       gbMemoryMap[0x0e] = &gbMemory[0xe000];

  1851       gbMemoryMap[0x0f] = &gbMemory[0xf000];

  1852     }

  1853 

  1854   if (gbRam)

  1855     {

  1856       gbMemoryMap[0x0a] = &gbRam[0x0000];

  1857       gbMemoryMap[0x0b] = &gbRam[0x1000];

  1858     }

  1859 

  1860   gbSoundReset();

  1861 

  1862   systemResetSensor();

  1863 

  1864   systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;

  1865 

  1866   gbLastTime	 = systemGetClock();

  1867   gbFrameCount = 0;

  1868 

  1869   systemRefreshScreen();

  1870 }

  1871 

  1872 void gbWriteSaveMBC1(const char *name)

  1873 {

  1874   FILE *gzFile = fopen(name, "wb");

  1875 

  1876   if (gzFile == NULL)

  1877     {

  1878       systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);

  1879       return;

  1880     }

  1881 

  1882   fwrite(gbRam,

  1883 	 1,

  1884 	 gbRamSize,

  1885 	 gzFile);

  1886 

  1887   fclose(gzFile);

  1888 }

  1889 

  1890 void gbWriteSaveMBC2(const char *name)

  1891 {

  1892   FILE *file = fopen(name, "wb");

  1893 

  1894   if (file == NULL)

  1895     {

  1896       systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);

  1897       return;

  1898     }

  1899 

  1900   fwrite(&gbMemory[0xa000],

  1901 	 1,

  1902 	 256,

  1903 	 file);

  1904 

  1905   fclose(file);

  1906 }

  1907 

  1908 void gbWriteSaveMBC3(const char *name, bool extendedSave)

  1909 {

  1910   FILE *gzFile = fopen(name, "wb");

  1911 

  1912   if (gzFile == NULL)

  1913     {

  1914       systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);

  1915       return;

  1916     }

  1917 

  1918   fwrite(gbRam,

  1919 	 1,

  1920 	 gbRamSize,

  1921 	 gzFile);

  1922 

  1923   if (extendedSave)

  1924     {

  1925       //assert(sizeof(time_t) == 4);

  1926       fwrite(&gbDataMBC3.mapperSeconds,

  1927 	     1,

  1928 	     10 * sizeof(int32) + /*sizeof(time_t)*/4,

  1929 	     gzFile);

  1930     }

  1931 

  1932   fclose(gzFile);

  1933 }

  1934 

  1935 void gbWriteSaveMBC5(const char *name)

  1936 {

  1937   FILE *gzFile = fopen(name, "wb");

  1938 

  1939   if (gzFile == NULL)

  1940     {

  1941       systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);

  1942       return;

  1943     }

  1944 

  1945   fwrite(gbRam,

  1946 	 1,

  1947 	 gbRamSize,

  1948 	 gzFile);

  1949 

  1950   fclose(gzFile);

  1951 }

  1952 

  1953 void gbWriteSaveMBC7(const char *name)

  1954 {

  1955   FILE *file = fopen(name, "wb");

  1956 

  1957   if (file == NULL)

  1958     {

  1959       systemMessage(MSG_ERROR_CREATING_FILE, N_("Error creating file %s"), name);

  1960       return;

  1961     }

  1962 

  1963   fwrite(&gbMemory[0xa000],

  1964 	 1,

  1965 	 256,

  1966 	 file);

  1967 

  1968   fclose(file);

  1969 }

  1970 

  1971 bool gbReadSaveMBC1(const char *name)

  1972 {

  1973   gzFile gzFile = gzopen(name, "rb");

  1974 

  1975   if (gzFile == NULL)

  1976     {

  1977       return false;

  1978     }

  1979 

  1980   int read = gzread(gzFile,

  1981 		    gbRam,

  1982 		    gbRamSize);

  1983 

  1984   if (read != gbRamSize)

  1985     {

  1986       systemMessage(MSG_FAILED_TO_READ_SGM, N_("Failed to read complete save game %s (%d)"), name, read);

  1987       gzclose(gzFile);

  1988       return false;

  1989     }

  1990 

  1991   gzclose(gzFile);

  1992   return true;

  1993 }

  1994 

  1995 bool gbReadSaveMBC2(const char *name)

  1996 {

  1997   FILE *file = fopen(name, "rb");

  1998 

  1999   if (file == NULL)

  2000     {

  2001       return false;

  2002     }

  2003 

  2004   int read = fread(&gbMemory[0xa000],

  2005 		   1,

  2006 		   256,

  2007 		   file);

  2008 

  2009   if (read != 256)

  2010     {

  2011       systemMessage(MSG_FAILED_TO_READ_SGM,

  2012 		    N_("Failed to read complete save game %s (%d)"), name, read);

  2013       fclose(file);

  2014       return false;

  2015     }

  2016 

  2017   fclose(file);

  2018   return true;

  2019 }

  2020 

  2021 bool gbReadSaveMBC3(const char *name)

  2022 {

  2023   gzFile gzFile = gzopen(name, "rb");

  2024 

  2025   if (gzFile == NULL)

  2026     {

  2027       return false;

  2028     }

  2029 

  2030   int read = gzread(gzFile,

  2031 		    gbRam,

  2032 		    gbRamSize);

  2033 

  2034   bool res = true;

  2035 

  2036   if (read != gbRamSize)

  2037     {

  2038       systemMessage(MSG_FAILED_TO_READ_SGM,

  2039 		    N_("Failed to read complete save game %s (%d)"), name, read);

  2040     }

  2041   else

  2042     {

  2043       //assert(sizeof(time_t) == 4);

  2044       read = gzread(gzFile,

  2045 		    &gbDataMBC3.mapperSeconds,

  2046 		    sizeof(int32) * 10 + /*sizeof(time_t)*/4);

  2047 

  2048       if (read != (sizeof(int32) * 10 + /*sizeof(time_t)*/4) && read != 0)

  2049 	{

  2050 	  systemMessage(MSG_FAILED_TO_READ_RTC,

  2051 			N_("Failed to read RTC from save game %s (continuing)"),

  2052 			name);

  2053 	  res = false;

  2054 	}

  2055     }

  2056 

  2057   gzclose(gzFile);

  2058   return res;

  2059 }

  2060 

  2061 bool gbReadSaveMBC5(const char *name)

  2062 {

  2063   gzFile gzFile = gzopen(name, "rb");

  2064 

  2065   if (gzFile == NULL)

  2066     {

  2067       return false;

  2068     }

  2069 

  2070   int read = gzread(gzFile,

  2071 		    gbRam,

  2072 		    gbRamSize);

  2073 

  2074   if (read != gbRamSize)

  2075     {

  2076       systemMessage(MSG_FAILED_TO_READ_SGM,

  2077 		    N_("Failed to read complete save game %s (%d)"), name, read);

  2078       gzclose(gzFile);

  2079       return false;

  2080     }

  2081 

  2082   gzclose(gzFile);

  2083   return true;

  2084 }

  2085 

  2086 bool gbReadSaveMBC7(const char *name)

  2087 {

  2088   FILE *file = fopen(name, "rb");

  2089 

  2090   if (file == NULL)

  2091     {

  2092       return false;

  2093     }

  2094 

  2095   int read = fread(&gbMemory[0xa000],

  2096 		   1,

  2097 		   256,

  2098 		   file);

  2099 

  2100   if (read != 256)

  2101     {

  2102       systemMessage(MSG_FAILED_TO_READ_SGM,

  2103 		    N_("Failed to read complete save game %s (%d)"), name, read);

  2104       fclose(file);

  2105       return false;

  2106     }

  2107 

  2108   fclose(file);

  2109   return true;

  2110 }

  2111 

  2112 #if 0

  2113 bool gbLoadBIOS(const char *biosFileName, bool useBiosFile)

  2114 {

  2115   useBios = false;

  2116   if (useBiosFile)

  2117     {

  2118       useBios = utilLoadBIOS(bios, biosFileName, gbEmulatorType);

  2119       if (!useBios)

  2120 	{

  2121 	  systemMessage(MSG_INVALID_BIOS_FILE_SIZE, N_("Invalid BOOTROM file"));

  2122 	}

  2123     }

  2124   return useBios;

  2125 }

  2126 #endif

  2127 

  2128 void gbInit()

  2129 {

  2130   gbGenFilter();

  2131   gbSgbInit();    // calls gbSgbReset()... whatever

  2132 

  2133   gbMemory = (u8 *)malloc(65536 + 4);

  2134   memset(gbMemory, 0, 65536 + 4);

  2135   memset(gbPalette, 0, 2 * 128);

  2136 

  2137   // HACK: +4 at start to accomodate the 2xSaI filter reading out of bounds of the leftmost pixel

  2138   origPix = (u8 *)calloc(1, 4 * 257 * 226 + 4);

  2139   pix		= origPix + 4;

  2140 

  2141   gbLineBuffer = (u16 *)malloc(160 * sizeof(u16));

  2142 }

  2143 

  2144 bool gbWriteBatteryFile(const char *file, bool extendedSave)

  2145 {

  2146   if (gbBattery)

  2147     {

  2148       int type = gbRom[0x147];

  2149 

  2150       switch (type)

  2151 	{

  2152 	case 0x03:

  2153 	  gbWriteSaveMBC1(file);

  2154 	  break;

  2155 	case 0x06:

  2156 	  gbWriteSaveMBC2(file);

  2157 	  break;

  2158 	case 0x0f:

  2159 	case 0x10:

  2160 	case 0x13:

  2161 	  gbWriteSaveMBC3(file, extendedSave);

  2162 	  break;

  2163 	case 0x1b:

  2164 	case 0x1e:

  2165 	  gbWriteSaveMBC5(file);

  2166 	  break;

  2167 	case 0x22:

  2168 	  gbWriteSaveMBC7(file);

  2169 	  break;

  2170 	case 0xff:

  2171 	  gbWriteSaveMBC1(file);

  2172 	  break;

  2173 	}

  2174     }

  2175   return true;

  2176 }

  2177 

  2178 bool gbWriteBatteryFile(const char *file)

  2179 {

  2180   gbWriteBatteryFile(file, true);

  2181   return true;

  2182 }

  2183 

  2184 bool gbWriteBatteryToStream(gzFile gzfile)

  2185 {

  2186   // the GB save code is ugly, so rather than convert it all to use gzFiles, just save it to a temp file...

  2187 #define TEMP_SAVE_FNAME ("tempvbawrite.sav")

  2188   bool retVal = gbWriteBatteryFile(TEMP_SAVE_FNAME, true);

  2189 

  2190   // ...open the temp file and figure out its size...

  2191   FILE *fileTemp = fopen(TEMP_SAVE_FNAME, "rb");

  2192   if (fileTemp == NULL)

  2193     return false;

  2194   fseek(fileTemp, 0, SEEK_END);

  2195   int len = (int) ftell(fileTemp);

  2196 

  2197   // ...copy over the temp file...

  2198   char *temp = new char [len];

  2199   fseek(fileTemp, 0, SEEK_SET);

  2200   if (fread(temp, len, 1, fileTemp) != 1)

  2201     {

  2202       delete [] temp;

  2203       fclose(fileTemp);

  2204       return false;

  2205     }

  2206   fclose(fileTemp);

  2207   utilGzWrite(gzfile, temp, len);

  2208   delete [] temp;

  2209 

  2210   // ... and delete the temp file

  2211   remove(TEMP_SAVE_FNAME);

  2212 #undef TEMP_SAVE_FNAME

  2213 

  2214   return retVal;

  2215 }

  2216 

  2217 bool gbReadBatteryFile(const char *file)

  2218 {

  2219   bool res = false;

  2220   if (gbBattery)

  2221     {

  2222       int type = gbRom[0x147];

  2223 

  2224       switch (type)

  2225 	{

  2226 	case 0x03:

  2227 	  res = gbReadSaveMBC1(file);

  2228 	  break;

  2229 	case 0x06:

  2230 	  res = gbReadSaveMBC2(file);

  2231 	  break;

  2232 	case 0x0f:

  2233 	case 0x10:

  2234 	case 0x13:

  2235 	  if (!gbReadSaveMBC3(file))

  2236 	    {

  2237 	      struct tm *lt;

  2238 	      time_t tmp; //Small kludge to get it working on some systems where time_t has size 8.

  2239 

  2240 	      if (VBAMovieActive() || VBAMovieLoading())

  2241 		{

  2242 		  gbDataMBC3.mapperLastTime = VBAMovieGetId() + VBAMovieGetFrameCounter() / 60;

  2243 		  lt = gmtime(&tmp);

  2244 		  gbDataMBC3.mapperLastTime=(u32)tmp;

  2245 		}

  2246 	      else

  2247 		{

  2248 		  time(&tmp);

  2249 		  gbDataMBC3.mapperLastTime=(u32)tmp;

  2250 		  lt = localtime(&tmp);

  2251 		}

  2252 	      systemScreenMessage(ctime(&tmp), 4);

  2253 	      gbDataMBC3.mapperLastTime=(u32)tmp;

  2254 

  2255 	      gbDataMBC3.mapperSeconds = lt->tm_sec;

  2256 	      gbDataMBC3.mapperMinutes = lt->tm_min;

  2257 	      gbDataMBC3.mapperHours	 = lt->tm_hour;

  2258 	      gbDataMBC3.mapperDays	 = lt->tm_yday & 255;

  2259 	      gbDataMBC3.mapperControl = (gbDataMBC3.mapperControl & 0xfe) |

  2260 		(lt->tm_yday > 255 ? 1 : 0);

  2261 	      res = false;

  2262 	      break;

  2263 	    }

  2264 	  time_t tmp;

  2265 	  systemScreenMessage(ctime(&tmp), 4);

  2266 	  gbDataMBC3.mapperLastTime=(u32)tmp;

  2267 	  res = true;

  2268 	  break;

  2269 	case 0x1b:

  2270 	case 0x1e:

  2271 	  res = gbReadSaveMBC5(file);

  2272 	  break;

  2273 	case 0x22:

  2274 	  res = gbReadSaveMBC7(file);

  2275 	case 0xff:

  2276 	  res = gbReadSaveMBC1(file);

  2277 	  break;

  2278 	}

  2279     }

  2280   systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;

  2281   return res;

  2282 }

  2283 

  2284 bool gbReadBatteryFromStream(gzFile gzfile)

  2285 {

  2286   // the GB save code is ugly, so rather than convert it all to use gzFiles, just copy it to temp RAM...

  2287 #define TEMP_SAVE_FNAME ("tempvbaread.sav")

  2288   int	  pos	 = gztell(gzfile);

  2289   int	  buflen = 1024;

  2290   // ...make a temp file and write it there...

  2291   FILE *fileTemp = fopen(TEMP_SAVE_FNAME, "wb");

  2292   if (fileTemp == NULL)

  2293     return false;

  2294   int gzDeflated;

  2295   char *temp	 = new char [buflen];

  2296   while ((gzDeflated = utilGzRead(gzfile, temp, buflen)) != 0)

  2297     {

  2298       if (gzDeflated == -1 || fwrite(temp, gzDeflated, 1, fileTemp) != 1)

  2299 	{

  2300 	  delete [] temp;

  2301 	  fclose(fileTemp);

  2302 	  gzseek(gzfile, pos, SEEK_SET); /// FIXME: leaves pos in gzfile before save instead of after it (everything that

  2303 	  // calls this right now does a seek afterwards so it doesn't matter for now, but it's

  2304 	  // still bad)

  2305 	  return false;

  2306 	}

  2307     }

  2308   gzseek(gzfile, pos, SEEK_SET); /// FIXME: leaves pos in gzfile before save instead of after it (everything that calls this

  2309   // right now does a seek afterwards so it doesn't matter for now, but it's still bad)

  2310   fclose(fileTemp);

  2311   delete [] temp;

  2312 

  2313   // ... load from the temp file...

  2314   bool retVal = gbReadBatteryFile(TEMP_SAVE_FNAME);

  2315 

  2316   // ... and delete the temp file

  2317   remove(TEMP_SAVE_FNAME);

  2318 #undef TEMP_SAVE_FNAME

  2319 

  2320   return retVal;

  2321 }

  2322 

  2323 bool gbReadGSASnapshot(const char *fileName)

  2324 {

  2325   FILE *file = fopen(fileName, "rb");

  2326 

  2327   if (!file)

  2328     {

  2329       systemMessage(MSG_CANNOT_OPEN_FILE, N_("Cannot open file %s"), fileName);

  2330       return false;

  2331     }

  2332 

  2333   //  long size = ftell(file);

  2334   fseek(file, 0x4, SEEK_SET);

  2335   char buffer[16];

  2336   char buffer2[16];

  2337   fread(buffer, 1, 15, file);

  2338   buffer[15] = 0;

  2339   memcpy(buffer2, &gbRom[0x134], 15);

  2340   buffer2[15] = 0;

  2341   if (memcmp(buffer, buffer2, 15))

  2342     {

  2343       systemMessage(MSG_CANNOT_IMPORT_SNAPSHOT_FOR,

  2344 		    N_("Cannot import snapshot for %s. Current game is %s"),

  2345 		    buffer,

  2346 		    buffer2);

  2347       fclose(file);

  2348       return false;

  2349     }

  2350   fseek(file, 0x13, SEEK_SET);

  2351   int read   = 0;

  2352   int toRead = 0;

  2353   switch (gbRom[0x147])

  2354     {

  2355     case 0x03:

  2356     case 0x0f:

  2357     case 0x10:

  2358     case 0x13:

  2359     case 0x1b:

  2360     case 0x1e:

  2361     case 0xff:

  2362       read   = fread(gbRam, 1, gbRamSize, file);

  2363       toRead = gbRamSize;

  2364       break;

  2365     case 0x06:

  2366     case 0x22:

  2367       read   = fread(&gbMemory[0xa000], 1, 256, file);

  2368       toRead = 256;

  2369       break;

  2370     default:

  2371       systemMessage(MSG_UNSUPPORTED_SNAPSHOT_FILE,

  2372 		    N_("Unsupported snapshot file %s"),

  2373 		    fileName);

  2374       fclose(file);

  2375       return false;

  2376     }

  2377   fclose(file);

  2378   gbReset();

  2379   return true;

  2380 }

  2381 

  2382 variable_desc gbSaveGameStruct[] =

  2383   {

  2384     { &PC.W,					   sizeof(u16)						 },

  2385     { &SP.W,					   sizeof(u16)						 },

  2386     { &AF.W,					   sizeof(u16)						 },

  2387     { &BC.W,					   sizeof(u16)						 },

  2388     { &DE.W,					   sizeof(u16)						 },

  2389     { &HL.W,					   sizeof(u16)						 },

  2390     { &IFF,						   sizeof(u8)						 },

  2391     { &GBLCD_MODE_0_CLOCK_TICKS,   sizeof(int32)					 },

  2392     { &GBLCD_MODE_1_CLOCK_TICKS,   sizeof(int32)					 },

  2393     { &GBLCD_MODE_2_CLOCK_TICKS,   sizeof(int32)					 },

  2394     { &GBLCD_MODE_3_CLOCK_TICKS,   sizeof(int32)					 },

  2395     { &GBDIV_CLOCK_TICKS,		   sizeof(int32)					 },

  2396     { &GBLY_INCREMENT_CLOCK_TICKS, sizeof(int32)					 },

  2397     { &GBTIMER_MODE_0_CLOCK_TICKS, sizeof(int32)					 },

  2398     { &GBTIMER_MODE_1_CLOCK_TICKS, sizeof(int32)					 },

  2399     { &GBTIMER_MODE_2_CLOCK_TICKS, sizeof(int32)					 },

  2400     { &GBTIMER_MODE_3_CLOCK_TICKS, sizeof(int32)					 },

  2401     { &GBSERIAL_CLOCK_TICKS,	   sizeof(int32)					 },

  2402     { &GBSYNCHRONIZE_CLOCK_TICKS,  sizeof(int32)					 },

  2403     { &gbDivTicks,				   sizeof(int32)					 },

  2404     { &gbLcdMode,				   sizeof(int32)					 },

  2405     { &gbLcdTicks,				   sizeof(int32)					 },

  2406     { &gbLcdLYIncrementTicks,	   sizeof(int32)					 },

  2407     { &gbTimerTicks,			   sizeof(int32)					 },

  2408     { &gbTimerClockTicks,		   sizeof(int32)					 },

  2409     { &gbSerialTicks,			   sizeof(int32)					 },

  2410     { &gbSerialBits,			   sizeof(int32)					 },

  2411     { &gbInterrupt,				   sizeof(int32)					 },

  2412     { &gbInterruptWait,			   sizeof(int32)					 },

  2413     { &gbSynchronizeTicks,		   sizeof(int32)					 },

  2414     { &gbTimerOn,				   sizeof(int32)					 },

  2415     { &gbTimerMode,				   sizeof(int32)					 },

  2416     { &gbSerialOn,				   sizeof(int32)					 },

  2417     { &gbWindowLine,			   sizeof(int32)					 },

  2418     { &gbCgbMode,				   sizeof(int32)					 },

  2419     { &gbVramBank,				   sizeof(int32)					 },

  2420     { &gbWramBank,				   sizeof(int32)					 },

  2421     { &gbHdmaSource,			   sizeof(int32)					 },

  2422     { &gbHdmaDestination,		   sizeof(int32)					 },

  2423     { &gbHdmaBytes,				   sizeof(int32)					 },

  2424     { &gbHdmaOn,				   sizeof(int32)					 },

  2425     { &gbSpeed,					   sizeof(int32)					 },

  2426     { &gbSgbMode,				   sizeof(int32)					 },

  2427     { &register_DIV,			   sizeof(u8)						 },

  2428     { &register_TIMA,			   sizeof(u8)						 },

  2429     { &register_TMA,			   sizeof(u8)						 },

  2430     { &register_TAC,			   sizeof(u8)						 },

  2431     { &register_IF,				   sizeof(u8)						 },

  2432     { &register_LCDC,			   sizeof(u8)						 },

  2433     { &register_STAT,			   sizeof(u8)						 },

  2434     { &register_SCY,			   sizeof(u8)						 },

  2435     { &register_SCX,			   sizeof(u8)						 },

  2436     { &register_LY,				   sizeof(u8)						 },

  2437     { &register_LYC,			   sizeof(u8)						 },

  2438     { &register_DMA,			   sizeof(u8)						 },

  2439     { &register_WY,				   sizeof(u8)						 },

  2440     { &register_WX,				   sizeof(u8)						 },

  2441     { &register_VBK,			   sizeof(u8)						 },

  2442     { &register_HDMA1,			   sizeof(u8)						 },

  2443     { &register_HDMA2,			   sizeof(u8)						 },

  2444     { &register_HDMA3,			   sizeof(u8)						 },

  2445     { &register_HDMA4,			   sizeof(u8)						 },

  2446     { &register_HDMA5,			   sizeof(u8)						 },

  2447     { &register_SVBK,			   sizeof(u8)						 },

  2448     { &register_IE,				   sizeof(u8)						 },

  2449     { &gbBgp[0],				   sizeof(u8)						 },

  2450     { &gbBgp[1],				   sizeof(u8)						 },

  2451     { &gbBgp[2],				   sizeof(u8)						 },

  2452     { &gbBgp[3],				   sizeof(u8)						 },

  2453     { &gbObp0[0],				   sizeof(u8)						 },

  2454     { &gbObp0[1],				   sizeof(u8)						 },

  2455     { &gbObp0[2],				   sizeof(u8)						 },

  2456     { &gbObp0[3],				   sizeof(u8)						 },

  2457     { &gbObp1[0],				   sizeof(u8)						 },

  2458     { &gbObp1[1],				   sizeof(u8)						 },

  2459     { &gbObp1[2],				   sizeof(u8)						 },

  2460     { &gbObp1[3],				   sizeof(u8)						 },

  2461     { NULL,						   0								 }

  2462   };

  2463 

  2464 bool gbWriteSaveStateToStream(gzFile gzFile)

  2465 {

  2466   

  2467   utilWriteInt(gzFile, GBSAVE_GAME_VERSION);

  2468 

  2469   

  2470   utilGzWrite(gzFile, &gbRom[0x134], 15);

  2471 

  2472   utilWriteData(gzFile, gbSaveGameStruct);

  2473   

  2474   utilGzWrite(gzFile, &IFF, 2);

  2475   

  2476   if (gbSgbMode)

  2477     {

  2478       gbSgbSaveGame(gzFile);

  2479     }

  2480 

  2481   utilGzWrite(gzFile, &gbDataMBC1, sizeof(gbDataMBC1));

  2482   utilGzWrite(gzFile, &gbDataMBC2, sizeof(gbDataMBC2));

  2483   //assert(sizeof(time_t) == 4);

  2484   utilGzWrite(gzFile, &gbDataMBC3, sizeof(gbDataMBC3));

  2485   utilGzWrite(gzFile, &gbDataMBC5, sizeof(gbDataMBC5));

  2486   utilGzWrite(gzFile, &gbDataHuC1, sizeof(gbDataHuC1));

  2487   utilGzWrite(gzFile, &gbDataHuC3, sizeof(gbDataHuC3));

  2488 

  2489   // yes, this definitely needs to be saved, or loading paused games will show a black screen

  2490   // this is also necessary to be consistent with what the GBA saving does

  2491   utilGzWrite(gzFile, pix, 4 * 257 * 226);

  2492 

  2493   utilGzWrite(gzFile, gbPalette, 128 * sizeof(u16));

  2494   // todo: remove

  2495   utilGzWrite(gzFile, gbPalette, 128 * sizeof(u16));

  2496 

  2497   utilGzWrite(gzFile, &gbMemory[0x8000], 0x8000);

  2498 

  2499   

  2500   if (gbRamSize && gbRam)

  2501     {

  2502       utilGzWrite(gzFile, gbRam, gbRamSize);

  2503     }

  2504 

  2505   if (gbCgbMode)

  2506     {

  2507       utilGzWrite(gzFile, gbVram, 0x4000);

  2508       utilGzWrite(gzFile, gbWram, 0x8000);

  2509     }

  2510 

  2511   gbSoundSaveGame(gzFile);

  2512 

  2513   gbCheatsSaveGame(gzFile);

  2514 

  2515   // new to re-recording version:

  2516   {

  2517     extern int32 sensorX, sensorY;

  2518     utilGzWrite(gzFile, &sensorX, sizeof(sensorX));

  2519     utilGzWrite(gzFile, &sensorY, sizeof(sensorY));

  2520     utilGzWrite(gzFile, gbJoymask, 4 * sizeof(*gbJoymask)); // this has to be saved or old input will incorrectly get

  2521     // carried

  2522     // back on loading a snapshot!

  2523 

  2524     bool8 movieActive = VBAMovieActive();

  2525     utilGzWrite(gzFile, &movieActive, sizeof(movieActive));

  2526     if (movieActive)

  2527       {

  2528 	uint8 *movie_freeze_buf	 = NULL;

  2529 	uint32 movie_freeze_size = 0;

  2530 

  2531 	VBAMovieFreeze(&movie_freeze_buf, &movie_freeze_size);

  2532 	if (movie_freeze_buf)

  2533 	  {

  2534 	    utilGzWrite(gzFile, &movie_freeze_size, sizeof(movie_freeze_size));

  2535 	    utilGzWrite(gzFile, movie_freeze_buf, movie_freeze_size);

  2536 	    delete [] movie_freeze_buf;

  2537 	  }

  2538 	else

  2539 	  {

  2540 	    systemMessage(0, N_("Failed to save movie snapshot."));

  2541 	    return false;

  2542 	  }

  2543       }

  2544     utilGzWrite(gzFile, &GBSystemCounters.frameCount, sizeof(GBSystemCounters.frameCount));

  2545   }

  2546 

  2547   // new to rerecording 19.4 wip (svn r22+):

  2548   {

  2549     utilGzWrite(gzFile, &GBSystemCounters.lagCount, sizeof(GBSystemCounters.lagCount));

  2550     utilGzWrite(gzFile, &GBSystemCounters.lagged, sizeof(GBSystemCounters.lagged));

  2551     utilGzWrite(gzFile, &GBSystemCounters.laggedLast, sizeof(GBSystemCounters.laggedLast));

  2552   }

  2553 

  2554   utilWriteInt(gzFile, 0x07); // RLM this is the end of file marker.

  2555   return true;

  2556 }

  2557 

  2558 

  2559 long gbWriteMemSaveStatePos(char *memory, int available){

  2560   gzFile gzFile = utilMemGzOpen(memory, available, "w");

  2561 

  2562   if (gzFile == NULL)

  2563     {

  2564       return false;

  2565     }

  2566 

  2567   bool res = gbWriteSaveStateToStream(gzFile);

  2568 

  2569   long pos = utilGzTell(gzFile) + 8;

  2570 

  2571   if (pos >= available){

  2572     pos = 0;

  2573   }

  2574 

  2575   utilGzClose(gzFile);

  2576 

  2577   return pos;

  2578 

  2579 }

  2580 

  2581 bool gbWriteMemSaveState(char *memory, int available)

  2582 {

  2583   long pos = gbWriteMemSaveStatePos(memory, available);

  2584   if (pos > 0) { return true; }

  2585   else{ return false; }

  2586 }

  2587 

  2588 bool gbWriteSaveState(const char *name)

  2589 {

  2590   gzFile gzFile = utilGzOpen(name, "wb");

  2591 

  2592   if (gzFile == NULL)

  2593     return false;

  2594 

  2595   bool res = gbWriteSaveStateToStream(gzFile);

  2596 

  2597   utilGzClose(gzFile);

  2598   return res;

  2599 }

  2600 

  2601 static int	tempStateID	  = 0;

  2602 static int	tempFailCount = 0;

  2603 static bool backupSafe	  = true;

  2604 

  2605 bool gbReadSaveStateFromStream(gzFile gzFile)

  2606 {

  2607   int	 type;

  2608   char tempBackupName [128];

  2609   if (backupSafe)

  2610     {

  2611       sprintf(tempBackupName, "gbatempsave%d.sav", tempStateID++);

  2612       gbWriteSaveState(tempBackupName);

  2613     }

  2614 

  2615   int version = utilReadInt(gzFile);

  2616 

  2617   if (version > GBSAVE_GAME_VERSION || version < 0)

  2618     {

  2619       systemMessage(MSG_UNSUPPORTED_VB_SGM,

  2620 		    N_("Unsupported VisualBoy save game version %d"), version);

  2621       goto failedLoadGB;

  2622     }

  2623 

  2624   u8 romname[20];

  2625 

  2626   utilGzRead(gzFile, romname, 15);

  2627 

  2628   if (memcmp(&gbRom[0x134], romname, 15) != 0)

  2629     {

  2630       systemMessage(MSG_CANNOT_LOAD_SGM_FOR,

  2631 		    N_("Cannot load save game for %s. Playing %s"),

  2632 		    romname, &gbRom[0x134]);

  2633       goto failedLoadGB;

  2634     }

  2635 

  2636   utilReadData(gzFile, gbSaveGameStruct);

  2637 

  2638   if (version >= GBSAVE_GAME_VERSION_7)

  2639     {

  2640       utilGzRead(gzFile, &IFF, 2);

  2641     }

  2642 

  2643   if (gbSgbMode)

  2644     {

  2645       gbSgbReadGame(gzFile, version);

  2646     }

  2647   else

  2648     {

  2649       gbSgbMask = 0; // loading a game at the wrong time causes no display

  2650     }

  2651 

  2652   utilGzRead(gzFile, &gbDataMBC1, sizeof(gbDataMBC1));

  2653   utilGzRead(gzFile, &gbDataMBC2, sizeof(gbDataMBC2));

  2654   if (version < GBSAVE_GAME_VERSION_4)

  2655     // prior to version 4, there was no adjustment for the time the game

  2656     // was last played, so we have less to read. This needs update if the

  2657     // structure changes again.

  2658     utilGzRead(gzFile, &gbDataMBC3, sizeof(int32) * 10);

  2659   else

  2660     {

  2661       //assert(sizeof(time_t) == 4);

  2662       utilGzRead(gzFile, &gbDataMBC3, sizeof(gbDataMBC3));

  2663     }

  2664   utilGzRead(gzFile, &gbDataMBC5, sizeof(gbDataMBC5));

  2665   utilGzRead(gzFile, &gbDataHuC1, sizeof(gbDataHuC1));

  2666   utilGzRead(gzFile, &gbDataHuC3, sizeof(gbDataHuC3));

  2667 

  2668   if (version >= GBSAVE_GAME_VERSION_12)

  2669     {

  2670       utilGzRead(gzFile, pix, 4 * 257 * 226);

  2671     }

  2672   else

  2673     {

  2674       memset(pix, 0, 257 * 226 * sizeof(u32));

  2675       //		if(version < GBSAVE_GAME_VERSION_5)

  2676       //			utilGzRead(gzFile, pix, 256*224*sizeof(u16));

  2677     }

  2678 

  2679   if (version < GBSAVE_GAME_VERSION_6)

  2680     {

  2681       utilGzRead(gzFile, gbPalette, 64 * sizeof(u16));

  2682     }

  2683   else

  2684     utilGzRead(gzFile, gbPalette, 128 * sizeof(u16));

  2685 

  2686   // todo: remove

  2687   utilGzRead(gzFile, gbPalette, 128 * sizeof(u16));

  2688 

  2689   if (version < GBSAVE_GAME_VERSION_10)

  2690     {

  2691       if (!gbCgbMode && !gbSgbMode)

  2692 	{

  2693 	  for (int i = 0; i < 8; i++)

  2694 	    gbPalette[i] = systemGbPalette[gbPaletteOption * 8 + i];

  2695 	}

  2696     }

  2697 

  2698   utilGzRead(gzFile, &gbMemory[0x8000], 0x8000);

  2699 

  2700   if (gbRamSize && gbRam)

  2701     {

  2702       utilGzRead(gzFile, gbRam, gbRamSize);

  2703     }

  2704 

  2705   gbMemoryMap[0x00] = &gbRom[0x0000];

  2706   gbMemoryMap[0x01] = &gbRom[0x1000];

  2707   gbMemoryMap[0x02] = &gbRom[0x2000];

  2708   gbMemoryMap[0x03] = &gbRom[0x3000];

  2709   gbMemoryMap[0x04] = &gbRom[0x4000];

  2710   gbMemoryMap[0x05] = &gbRom[0x5000];

  2711   gbMemoryMap[0x06] = &gbRom[0x6000];

  2712   gbMemoryMap[0x07] = &gbRom[0x7000];

  2713   gbMemoryMap[0x08] = &gbMemory[0x8000];

  2714   gbMemoryMap[0x09] = &gbMemory[0x9000];

  2715   gbMemoryMap[0x0a] = &gbMemory[0xa000];

  2716   gbMemoryMap[0x0b] = &gbMemory[0xb000];

  2717   gbMemoryMap[0x0c] = &gbMemory[0xc000];

  2718   gbMemoryMap[0x0d] = &gbMemory[0xd000];

  2719   gbMemoryMap[0x0e] = &gbMemory[0xe000];

  2720   gbMemoryMap[0x0f] = &gbMemory[0xf000];

  2721 

  2722   type = gbRom[0x147];

  2723 

  2724   switch (type)

  2725     {

  2726     case 0x00:

  2727     case 0x01:

  2728     case 0x02:

  2729     case 0x03:

  2730       // MBC 1

  2731       memoryUpdateMapMBC1();

  2732       break;

  2733     case 0x05:

  2734     case 0x06:

  2735       // MBC2

  2736       memoryUpdateMapMBC2();

  2737       break;

  2738     case 0x0f:

  2739     case 0x10:

  2740     case 0x11:

  2741     case 0x12:

  2742     case 0x13:

  2743       // MBC 3

  2744       memoryUpdateMapMBC3();

  2745       break;

  2746     case 0x19:

  2747     case 0x1a:

  2748     case 0x1b:

  2749       // MBC5

  2750       memoryUpdateMapMBC5();

  2751       break;

  2752     case 0x1c:

  2753     case 0x1d:

  2754     case 0x1e:

  2755       // MBC 5 Rumble

  2756       memoryUpdateMapMBC5();

  2757       break;

  2758     case 0x22:

  2759       // MBC 7

  2760       memoryUpdateMapMBC7();

  2761       break;

  2762     case 0xfe:

  2763       // HuC3

  2764       memoryUpdateMapHuC3();

  2765       break;

  2766     case 0xff:

  2767       // HuC1

  2768       memoryUpdateMapHuC1();

  2769       break;

  2770     }

  2771 

  2772   if (gbCgbMode)

  2773     {

  2774       if (!gbVram)

  2775 	gbVram = (u8 *)malloc(0x4000 + 4);

  2776       if (!gbWram)

  2777 	gbWram = (u8 *)malloc(0x8000 + 4);

  2778       utilGzRead(gzFile, gbVram, 0x4000);

  2779       utilGzRead(gzFile, gbWram, 0x8000);

  2780 

  2781       int value = register_SVBK;

  2782       if (value == 0)

  2783 	value = 1;

  2784 

  2785       gbMemoryMap[0x08] = &gbVram[register_VBK * 0x2000];

  2786       gbMemoryMap[0x09] = &gbVram[register_VBK * 0x2000 + 0x1000];

  2787       gbMemoryMap[0x0d] = &gbWram[value * 0x1000];

  2788     }

  2789   else

  2790     {

  2791       if (gbVram)

  2792 	{

  2793 	  free(gbVram);

  2794 	  gbVram = NULL;

  2795 	}

  2796       if (gbWram)

  2797 	{

  2798 	  free(gbWram);

  2799 	  gbWram = NULL;

  2800 	}

  2801     }

  2802 

  2803   gbSoundReadGame(version, gzFile);

  2804 

  2805 #if 0

  2806   if (gbBorderOn)

  2807     {

  2808       gbSgbRenderBorder();

  2809     }

  2810 

  2811   systemRefreshScreen();

  2812 #endif

  2813 

  2814   if (version > GBSAVE_GAME_VERSION_1)

  2815     gbCheatsReadGame(gzFile, version);

  2816 

  2817   systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;

  2818 

  2819   if (version >= GBSAVE_GAME_VERSION_11) // new to re-recording version:

  2820     {

  2821       extern int32 sensorX, sensorY; // from SDL.cpp

  2822       utilGzRead(gzFile, &sensorX, sizeof(sensorX));

  2823       utilGzRead(gzFile, &sensorY, sizeof(sensorY));

  2824       utilGzRead(gzFile, gbJoymask, 4 * sizeof(*gbJoymask)); // this has to be saved or old input will incorrectly get carried

  2825       // back on loading a snapshot!

  2826 

  2827       bool8 movieSnapshot;

  2828       utilGzRead(gzFile, &movieSnapshot, sizeof(movieSnapshot));

  2829       if (VBAMovieActive() && !movieSnapshot)

  2830 	{

  2831 	  systemMessage(0, N_("Can't load a non-movie snapshot while a movie is active."));

  2832 	  goto failedLoadGB;

  2833 	}

  2834 

  2835       if (movieSnapshot) // even if a movie isn't active we still want to parse through this in case other stuff is added

  2836 	// later on in the save format

  2837 	{

  2838 	  uint32 movieInputDataSize = 0;

  2839 	  utilGzRead(gzFile, &movieInputDataSize, sizeof(movieInputDataSize));

  2840 	  uint8 *local_movie_data = new uint8 [movieInputDataSize];

  2841 	  int	   readBytes		= utilGzRead(gzFile, local_movie_data, movieInputDataSize);

  2842 	  if (readBytes != movieInputDataSize)

  2843 	    {

  2844 	      systemMessage(0, N_("Corrupt movie snapshot."));

  2845 	      if (local_movie_data)

  2846 		delete [] local_movie_data;

  2847 	      goto failedLoadGB;

  2848 	    }

  2849 	  int code = VBAMovieUnfreeze(local_movie_data, movieInputDataSize);

  2850 	  if (local_movie_data)

  2851 	    delete [] local_movie_data;

  2852 	  if (code != MOVIE_SUCCESS && VBAMovieActive())

  2853 	    {

  2854 	      char errStr [1024];

  2855 	      strcpy(errStr, "Failed to load movie snapshot");

  2856 	      switch (code)

  2857 		{

  2858 		case MOVIE_NOT_FROM_THIS_MOVIE:

  2859 		  strcat(errStr, ";\nSnapshot not from this movie"); break;

  2860 		case MOVIE_NOT_FROM_A_MOVIE:

  2861 		  strcat(errStr, ";\nNot a movie snapshot"); break;                    // shouldn't get here...

  2862 		case MOVIE_SNAPSHOT_INCONSISTENT:

  2863 		  strcat(errStr, ";\nSnapshot inconsistent with movie"); break;

  2864 		case MOVIE_WRONG_FORMAT:

  2865 		  strcat(errStr, ";\nWrong format"); break;

  2866 		}

  2867 	      strcat(errStr, ".");

  2868 	      systemMessage(0, N_(errStr));

  2869 	      goto failedLoadGB;

  2870 	    }

  2871 	}

  2872       utilGzRead(gzFile, &GBSystemCounters.frameCount, sizeof(GBSystemCounters.frameCount));

  2873     }

  2874 

  2875   if (version >= GBSAVE_GAME_VERSION_13)   // new to rerecording 19.4 wip (svn r22+):

  2876     {

  2877       utilGzRead(gzFile, &GBSystemCounters.lagCount, sizeof(GBSystemCounters.lagCount));

  2878       utilGzRead(gzFile, &GBSystemCounters.lagged, sizeof(GBSystemCounters.lagged));

  2879       utilGzRead(gzFile, &GBSystemCounters.laggedLast, sizeof(GBSystemCounters.laggedLast));

  2880     }

  2881 

  2882   if (backupSafe)

  2883     {

  2884       remove(tempBackupName);

  2885       tempFailCount = 0;

  2886     }

  2887 

  2888   for (int i = 0; i < 4; ++i)

  2889     systemSetJoypad(i, gbJoymask[i] & 0xFFFF);

  2890 

  2891   // FIXME: horrible kludge

  2892   memcpy(s_gbJoymask, gbJoymask, sizeof(gbJoymask));

  2893 

  2894   VBAUpdateButtonPressDisplay();

  2895   VBAUpdateFrameCountDisplay();

  2896   systemRefreshScreen();

  2897   return true;

  2898 

  2899  failedLoadGB:

  2900   if (backupSafe)

  2901     {

  2902       tempFailCount++;

  2903       if (tempFailCount < 3) // fail no more than 2 times in a row

  2904 	gbReadSaveState(tempBackupName);

  2905       remove(tempBackupName);

  2906     }

  2907   return false;

  2908 }

  2909 

  2910 bool gbReadMemSaveState(char *memory, int available)

  2911 {

  2912   gzFile gzFile = utilMemGzOpen(memory, available, "r");

  2913 

  2914   backupSafe = false;

  2915   bool res = gbReadSaveStateFromStream(gzFile);

  2916   backupSafe = true;

  2917 

  2918   utilGzClose(gzFile);

  2919 

  2920   return res;

  2921 }

  2922 

  2923 bool gbReadSaveState(const char *name)

  2924 {

  2925   gzFile gzFile = utilGzOpen(name, "rb");

  2926 

  2927   if (gzFile == NULL)

  2928     {

  2929       return false;

  2930     }

  2931 

  2932   bool res = gbReadSaveStateFromStream(gzFile);

  2933 

  2934   utilGzClose(gzFile);

  2935 

  2936   return res;

  2937 }

  2938 

  2939 bool gbWritePNGFile(const char *fileName)

  2940 {

  2941   if (gbBorderOn)

  2942     return utilWritePNGFile(fileName, 256, 224, pix);

  2943   return utilWritePNGFile(fileName, 160, 144, pix);

  2944 }

  2945 

  2946 bool gbWriteBMPFile(const char *fileName)

  2947 {

  2948   if (gbBorderOn)

  2949     return utilWriteBMPFile(fileName, 256, 224, pix);

  2950   return utilWriteBMPFile(fileName, 160, 144, pix);

  2951 }

  2952 

  2953 void gbCleanUp()

  2954 {

  2955   newFrame	  = true;

  2956 

  2957   GBSystemCounters.frameCount = 0;

  2958   GBSystemCounters.lagCount	= 0;

  2959   GBSystemCounters.extraCount = 0;

  2960   GBSystemCounters.lagged		= true;

  2961   GBSystemCounters.laggedLast = true;

  2962 

  2963   if (gbRam != NULL)

  2964     {

  2965       free(gbRam);

  2966       gbRam = NULL;

  2967     }

  2968 

  2969   if (gbRom != NULL)

  2970     {

  2971       free(gbRom);

  2972       gbRom = NULL;

  2973     }

  2974 

  2975   if (gbMemory != NULL)

  2976     {

  2977       free(gbMemory);

  2978       gbMemory = NULL;

  2979     }

  2980 

  2981   if (gbLineBuffer != NULL)

  2982     {

  2983       free(gbLineBuffer);

  2984       gbLineBuffer = NULL;

  2985     }

  2986 

  2987   if (origPix != NULL)

  2988     {

  2989       free(origPix);

  2990       origPix = NULL;

  2991     }

  2992   pix = NULL;

  2993 

  2994   gbSgbShutdown();

  2995 

  2996   if (gbVram != NULL)

  2997     {

  2998       free(gbVram);

  2999       gbVram = NULL;

  3000     }

  3001 

  3002   if (gbWram != NULL)

  3003     {

  3004       free(gbWram);

  3005       gbWram = NULL;

  3006     }

  3007 

  3008   systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;

  3009 

  3010   memset(gbJoymask, 0, sizeof(gbJoymask));

  3011   // FIXME: horrible kludge

  3012   memset(s_gbJoymask, 0, sizeof(s_gbJoymask));

  3013 

  3014   systemClearJoypads();

  3015   systemResetSensor();

  3016 

  3017   //	gbLastTime = gbFrameCount = 0;

  3018   systemRefreshScreen();

  3019 }

  3020 

  3021 bool gbLoadRom(const char *szFile)

  3022 {

  3023   int size = 0;

  3024 

  3025   if (gbRom != NULL)

  3026     {

  3027       gbCleanUp();

  3028     }

  3029 

  3030   systemSaveUpdateCounter = SYSTEM_SAVE_NOT_UPDATED;

  3031 

  3032   gbRom = utilLoad(szFile,

  3033 		   utilIsGBImage,

  3034 		   NULL,

  3035 		   size);

  3036   if (!gbRom)

  3037     return false;

  3038 

  3039   gbRomSize = size;

  3040 

  3041   return gbUpdateSizes();

  3042 }

  3043 

  3044 bool gbUpdateSizes()

  3045 {

  3046   if (gbRom[0x148] > 8)

  3047     {

  3048       systemMessage(MSG_UNSUPPORTED_ROM_SIZE,

  3049 		    N_("Unsupported rom size %02x"), gbRom[0x148]);

  3050       return false;

  3051     }

  3052 

  3053   if (gbRomSize < gbRomSizes[gbRom[0x148]])

  3054     {

  3055       gbRom = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);

  3056     }

  3057   gbRomSize	  = gbRomSizes[gbRom[0x148]];

  3058   gbRomSizeMask = gbRomSizesMasks[gbRom[0x148]];

  3059 

  3060   if (gbRom[0x149] > 5)

  3061     {

  3062       systemMessage(MSG_UNSUPPORTED_RAM_SIZE,

  3063 		    N_("Unsupported ram size %02x"), gbRom[0x149]);

  3064       return false;

  3065     }

  3066 

  3067   gbRamSize	  = gbRamSizes[gbRom[0x149]];

  3068   gbRamSizeMask = gbRamSizesMasks[gbRom[0x149]];

  3069 

  3070   if (gbRamSize)

  3071     {

  3072       gbRam = (u8 *)malloc(gbRamSize + 4);

  3073       memset(gbRam, 0xFF, gbRamSize + 4);

  3074     }

  3075 

  3076   int type = gbRom[0x147];

  3077 

  3078   mapperReadRAM = NULL;

  3079 

  3080   switch (type)

  3081     {

  3082     case 0x00:

  3083     case 0x01:

  3084     case 0x02:

  3085     case 0x03:

  3086       // MBC 1

  3087       mapper	  = mapperMBC1ROM;

  3088       mapperRAM = mapperMBC1RAM;

  3089       break;

  3090     case 0x05:

  3091     case 0x06:

  3092       // MBC2

  3093       mapper		  = mapperMBC2ROM;

  3094       mapperRAM	  = mapperMBC2RAM;

  3095       gbRamSize	  = 0x200;

  3096       gbRamSizeMask = 0x1ff;

  3097       break;

  3098     case 0x0f:

  3099     case 0x10:

  3100     case 0x11:

  3101     case 0x12:

  3102     case 0x13:

  3103       // MBC 3

  3104       mapper		  = mapperMBC3ROM;

  3105       mapperRAM	  = mapperMBC3RAM;

  3106       mapperReadRAM = mapperMBC3ReadRAM;

  3107       break;

  3108     case 0x19:

  3109     case 0x1a:

  3110     case 0x1b:

  3111       // MBC5

  3112       mapper	  = mapperMBC5ROM;

  3113       mapperRAM = mapperMBC5RAM;

  3114       break;

  3115     case 0x1c:

  3116     case 0x1d:

  3117     case 0x1e:

  3118       // MBC 5 Rumble

  3119       mapper	  = mapperMBC5ROM;

  3120       mapperRAM = mapperMBC5RAM;

  3121       break;

  3122     case 0x22:

  3123       // MBC 7

  3124       mapper		  = mapperMBC7ROM;

  3125       mapperRAM	  = mapperMBC7RAM;

  3126       mapperReadRAM = mapperMBC7ReadRAM;

  3127       break;

  3128     case 0xfe:

  3129       // HuC3

  3130       mapper		  = mapperHuC3ROM;

  3131       mapperRAM	  = mapperHuC3RAM;

  3132       mapperReadRAM = mapperHuC3ReadRAM;

  3133       break;

  3134     case 0xff:

  3135       // HuC1

  3136       mapper	  = mapperHuC1ROM;

  3137       mapperRAM = mapperHuC1RAM;

  3138       break;

  3139     default:

  3140       systemMessage(MSG_UNKNOWN_CARTRIDGE_TYPE,

  3141 		    N_("Unknown cartridge type %02x"), type);

  3142       return false;

  3143     }

  3144 

  3145   switch (type)

  3146     {

  3147     case 0x03:

  3148     case 0x06:

  3149     case 0x0f:

  3150     case 0x10:

  3151     case 0x13:

  3152     case 0x1b:

  3153     case 0x1d:

  3154     case 0x1e:

  3155     case 0x22:

  3156     case 0xff:

  3157       gbBattery = 1;

  3158       break;

  3159     }

  3160 

  3161   gbInit();

  3162   gbReset();

  3163 

  3164   return true;

  3165 }

  3166 

  3167 int gbEmulate(int ticksToStop)

  3168 {

  3169   int rlm_count = 0;

  3170   //printf("RLM: Inside the GB!\n");

  3171   gbRegister tempRegister;

  3172   u8		   tempValue;

  3173   s8		   offset;

  3174 

  3175   int clockTicks = 0;

  3176   gbDmaTicks = 0;

  3177 

  3178   register int opcode = 0;

  3179 

  3180   u32 newmask = 0;

  3181   //printf("RLM: newframe = %d\n", newFrame);

  3182   if (newFrame)

  3183     {

  3184       extern void VBAOnExitingFrameBoundary();

  3185       VBAOnExitingFrameBoundary();

  3186       //printf("RLM: exiting frame boundary?\n");

  3187       // update joystick information

  3188       systemReadJoypads();

  3189 

  3190       bool sensor = (gbRom[0x147] == 0x22);

  3191 

  3192       // read joystick

  3193       if (gbSgbMode && gbSgbMultiplayer)

  3194 	{

  3195 	  if (gbSgbFourPlayers)

  3196 	    {

  3197 	      gbJoymask[0] = systemGetJoypad(0, sensor);

  3198 	      gbJoymask[1] = systemGetJoypad(1, false);

  3199 	      gbJoymask[2] = systemGetJoypad(2, false);

  3200 	      gbJoymask[3] = systemGetJoypad(3, false);

  3201 	    }

  3202 	  else

  3203 	    {

  3204 	      gbJoymask[0] = systemGetJoypad(0, sensor);

  3205 	      gbJoymask[1] = systemGetJoypad(1, false);

  3206 	    }

  3207 	}

  3208       else

  3209 	{

  3210 	  gbJoymask[0] = systemGetJoypad(0, sensor);

  3211 	}

  3212 

  3213       // FIXME: horrible kludge

  3214       memcpy(s_gbJoymask, gbJoymask, sizeof(gbJoymask));

  3215 

  3216       //		if (sensor)

  3217       //			systemUpdateMotionSensor(0);

  3218 

  3219       newmask = gbJoymask[0];

  3220       if (newmask & 0xFF)

  3221 	{

  3222 	  gbInterrupt |= 16;

  3223 	}

  3224 

  3225       extButtons = (newmask >> 18);

  3226       speedup	   = (extButtons & 1) != 0;

  3227 

  3228       VBAMovieResetIfRequested();

  3229       //printf("RLM: before Lua functions\n");

  3230       //CallRegisteredLuaFunctions(LUACALL_BEFOREEMULATION);

  3231       //printf("RLM: after Lua functions\n");

  3232       newFrame = false;

  3233     }

  3234 

  3235 

  3236   //for (;; )

  3237   // {

  3238 #ifndef FINAL_VERSION

  3239       if (systemDebug)

  3240 	{

  3241 	  if (!(IFF & 0x80))

  3242 	    {

  3243 	      if (systemDebug > 1)

  3244 		{

  3245 		  sprintf(gbBuffer, "PC=%04x AF=%04x BC=%04x DE=%04x HL=%04x SP=%04x I=%04x\n",

  3246 			  PC.W, AF.W, BC.W, DE.W, HL.W, SP.W, IFF);

  3247 		}

  3248 	      else

  3249 		{

  3250 		  sprintf(gbBuffer, "PC=%04x I=%02x\n", PC.W, IFF);

  3251 		}

  3252 	      log(gbBuffer);

  3253 	    }

  3254 	}

  3255 #endif

  3256       if (IFF & 0x80)

  3257 	{

  3258 	  if (register_LCDC & 0x80)

  3259 	    {

  3260 	      clockTicks = gbLcdTicks;

  3261 	    }

  3262 	  else

  3263 	    clockTicks = 100;

  3264 

  3265 	  if (gbLcdMode == 1 && (gbLcdLYIncrementTicks < clockTicks))

  3266 	    clockTicks = gbLcdLYIncrementTicks;

  3267 

  3268 	  if (gbSerialOn && (gbSerialTicks < clockTicks))

  3269 	    clockTicks = gbSerialTicks;

  3270 

  3271 	  if (gbTimerOn && (gbTimerTicks < clockTicks))

  3272 	    clockTicks = gbTimerTicks;

  3273 

  3274 	  if (soundTicks && (soundTicks < clockTicks))

  3275 	    clockTicks = soundTicks;

  3276 	}

  3277       else

  3278 	{

  3279 	  opcode = gbReadOpcode(PC.W);

  3280 	  //printf("RLM: calling mem Hook ; %07d\n", rlm_count++);

  3281 	  //CallRegisteredLuaMemHook(PC.W, 1, opcode, LUAMEMHOOK_EXEC);

  3282 	  PC.W++;

  3283 

  3284 	  if (IFF & 0x100)

  3285 	    {

  3286 	      IFF &= 0xff;

  3287 	      PC.W--;

  3288 	    }

  3289 

  3290 	  clockTicks = gbCycles[opcode];

  3291 

  3292 	  switch (opcode)

  3293 	    {

  3294 	    case 0xCB:

  3295 	      // extended opcode

  3296 	      //CallRegisteredLuaMemHook(PC.W, 1, opcode, LUAMEMHOOK_EXEC);	// is this desired?

  3297 	      opcode	   = gbReadOpcode(PC.W++);

  3298 	      clockTicks = gbCyclesCB[opcode];

  3299 	      switch (opcode)

  3300 		{

  3301 #include "gbCodesCB.h"

  3302 		}

  3303 	      break;

  3304 #include "gbCodes.h"

  3305 	    }

  3306 	}

  3307 

  3308       if (!emulating)

  3309 	return 1;

  3310 

  3311       if (gbDmaTicks)

  3312 	{

  3313 	  clockTicks += gbDmaTicks;

  3314 	  gbDmaTicks	= 0;

  3315 	}

  3316 

  3317       if (gbSgbMode)

  3318 	{

  3319 	  if (gbSgbPacketTimeout)

  3320 	    {

  3321 	      gbSgbPacketTimeout -= clockTicks;

  3322 

  3323 	      if (gbSgbPacketTimeout <= 0)

  3324 		gbSgbResetPacketState();

  3325 	    }

  3326 	}

  3327 

  3328       ticksToStop -= clockTicks;

  3329 

  3330       // DIV register emulation

  3331       gbDivTicks -= clockTicks;

  3332       while (gbDivTicks <= 0)

  3333 	{

  3334 	  register_DIV++;

  3335 	  gbDivTicks += GBDIV_CLOCK_TICKS;

  3336 	}

  3337 

  3338       if (register_LCDC & 0x80)

  3339 	{

  3340 	  // LCD stuff

  3341 	  gbLcdTicks -= clockTicks;

  3342 	  if (gbLcdMode == 1)

  3343 	    {

  3344 	      // during V-BLANK,we need to increment LY at the same rate!

  3345 	      gbLcdLYIncrementTicks -= clockTicks;

  3346 	      while (gbLcdLYIncrementTicks <= 0)

  3347 		{

  3348 		  gbLcdLYIncrementTicks += GBLY_INCREMENT_CLOCK_TICKS;

  3349 

  3350 		  if (register_LY < 153)

  3351 		    {

  3352 		      register_LY++;

  3353 

  3354 		      gbCompareLYToLYC();

  3355 

  3356 		      if (register_LY >= 153)

  3357 			gbLcdLYIncrementTicks = 6;

  3358 		    }

  3359 		  else

  3360 		    {

  3361 		      register_LY = 0x00;

  3362 		      // reset the window line

  3363 		      gbWindowLine = -1;

  3364 		      gbLcdLYIncrementTicks = GBLY_INCREMENT_CLOCK_TICKS * 2;

  3365 		      gbCompareLYToLYC();

  3366 		    }

  3367 		}

  3368 	    }

  3369 

  3370 	  // our counter is off, see what we need to do

  3371 	  while (gbLcdTicks <= 0)

  3372 	    {

  3373 	      int framesToSkip = systemFramesToSkip();

  3374 

  3375 	      switch (gbLcdMode)

  3376 		{

  3377 		case 0:

  3378 		  // H-Blank

  3379 		  register_LY++;

  3380 

  3381 		  gbCompareLYToLYC();

  3382 

  3383 		  // check if we reached the V-Blank period

  3384 		  if (register_LY == 144)

  3385 		    {

  3386 		      // Yes, V-Blank

  3387 		      // set the LY increment counter

  3388 		      gbLcdLYIncrementTicks = gbLcdTicks + GBLY_INCREMENT_CLOCK_TICKS;

  3389 		      gbLcdTicks += GBLCD_MODE_1_CLOCK_TICKS;

  3390 		      gbLcdMode	= 1;

  3391 		      if (register_LCDC & 0x80)

  3392 			{

  3393 			  gbInterrupt	   |= 1; // V-Blank interrupt

  3394 			  gbInterruptWait = 6;

  3395 			  if (register_STAT & 0x10)

  3396 			    gbInterrupt |= 2;

  3397 			}

  3398 

  3399 		      systemFrame();

  3400 

  3401 		      ++gbFrameCount;

  3402 		      u32 currentTime = systemGetClock();

  3403 		      if (currentTime - gbLastTime >= 1000)

  3404 			{

  3405 			  systemShowSpeed(int(float(gbFrameCount) * 100000 / (float(currentTime - gbLastTime) * 60) + .5f));

  3406 			  gbLastTime	 = currentTime;

  3407 			  gbFrameCount = 0;

  3408 			}

  3409 

  3410 		      ++GBSystemCounters.frameCount;

  3411 		      if (GBSystemCounters.lagged)

  3412 			{

  3413 			  ++GBSystemCounters.lagCount;

  3414 			}

  3415 		      GBSystemCounters.laggedLast = GBSystemCounters.lagged;

  3416 		      GBSystemCounters.lagged		= true;

  3417 

  3418 		      extern void VBAOnEnteringFrameBoundary();

  3419 		      VBAOnEnteringFrameBoundary();

  3420 

  3421 		      newFrame = true;

  3422 

  3423 		      pauseAfterFrameAdvance = systemPauseOnFrame();

  3424 

  3425 		      if (gbFrameSkipCount >= framesToSkip || pauseAfterFrameAdvance)

  3426 			{

  3427 			  if (gbBorderOn)

  3428 			    gbSgbRenderBorder();  // clear unnecessary things on border (e.g. in-game text message)

  3429 

  3430 			  systemRenderFrame();

  3431 			  gbFrameSkipCount = 0;

  3432 

  3433 			  bool capturePressed = (extButtons & 2) != 0;

  3434 			  if (capturePressed && !capturePrevious)

  3435 			    {

  3436 			      captureNumber = systemScreenCapture(captureNumber);

  3437 			    }

  3438 			  capturePrevious = capturePressed && !pauseAfterFrameAdvance;

  3439 			}

  3440 		      else

  3441 			{

  3442 			  ++gbFrameSkipCount;

  3443 			}

  3444 

  3445 		      if (pauseAfterFrameAdvance)

  3446 			{

  3447 			  systemSetPause(true);

  3448 			}

  3449 		    }

  3450 		  else

  3451 		    {

  3452 		      // go the the OAM being accessed mode

  3453 		      gbLcdTicks += GBLCD_MODE_2_CLOCK_TICKS;

  3454 		      gbLcdMode	= 2;

  3455 

  3456 		      // only one LCD interrupt per line. may need to generalize...

  3457 		      if (!(register_STAT & 0x40) ||

  3458 			  (register_LY != register_LYC))

  3459 			{

  3460 			  if ((register_STAT & 0x28) == 0x20)

  3461 			    gbInterrupt |= 2;

  3462 			}

  3463 		    }

  3464 

  3465 		  break;

  3466 		case 1:

  3467 		  // V-Blank

  3468 		  // next mode is OAM being accessed mode

  3469 		  gbLcdTicks += GBLCD_MODE_2_CLOCK_TICKS;

  3470 		  gbLcdMode	= 2;

  3471 		  if (!(register_STAT & 0x40) ||

  3472 		      (register_LY != register_LYC))

  3473 		    {

  3474 		      if ((register_STAT & 0x28) == 0x20)

  3475 			gbInterrupt |= 2;

  3476 		    }

  3477 		  break;

  3478 		case 2:

  3479 		  // OAM being accessed mode

  3480 

  3481 		  // next mode is OAM and VRAM in use

  3482 		  gbLcdTicks += GBLCD_MODE_3_CLOCK_TICKS;

  3483 		  gbLcdMode	= 3;

  3484 		  break;

  3485 		case 3:

  3486 		  // OAM and VRAM in use

  3487 		  // next mode is H-Blank

  3488 		  if (register_LY < 144)

  3489 		    {

  3490 		      if (!gbSgbMask)

  3491 			{

  3492 			  if (gbFrameSkipCount >= framesToSkip || pauseAfterFrameAdvance)

  3493 			    {

  3494 			      gbRenderLine();

  3495 			      gbDrawSprites();

  3496 

  3497 			      switch (systemColorDepth)

  3498 				{

  3499 				case 16:

  3500 

  3501 				  {

  3502 				    u16 *dest = (u16 *)pix +

  3503 				      (gbBorderLineSkip + 2) * (register_LY + gbBorderRowSkip + 1)

  3504 				      + gbBorderColumnSkip;

  3505 				    for (int x = 0; x < 160; )

  3506 				      {

  3507 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3508 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3509 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3510 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3511 

  3512 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3513 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3514 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3515 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3516 

  3517 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3518 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3519 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3520 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3521 

  3522 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3523 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3524 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3525 					*dest++ = systemColorMap16[gbLineMix[x++]];

  3526 				      }

  3527 				    if (gbBorderOn)

  3528 				      dest += gbBorderColumnSkip;

  3529 				    *dest++ = 0;     // for filters that read one pixel more

  3530 				    break;

  3531 				  }

  3532 				case 24:

  3533 

  3534 				  {

  3535 				    u8 *dest = (u8 *)pix +

  3536 				      3 * (gbBorderLineSkip * (register_LY + gbBorderRowSkip) +

  3537 					   gbBorderColumnSkip);

  3538 				    for (int x = 0; x < 160; )

  3539 				      {

  3540 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3541 					dest += 3;

  3542 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3543 					dest += 3;

  3544 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3545 					dest += 3;

  3546 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3547 					dest += 3;

  3548 

  3549 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3550 					dest += 3;

  3551 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3552 					dest += 3;

  3553 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3554 					dest += 3;

  3555 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3556 					dest += 3;

  3557 

  3558 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3559 					dest += 3;

  3560 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3561 					dest += 3;

  3562 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3563 					dest += 3;

  3564 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3565 					dest += 3;

  3566 

  3567 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3568 					dest += 3;

  3569 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3570 					dest += 3;

  3571 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3572 					dest += 3;

  3573 					*((u32 *)dest) = systemColorMap32[gbLineMix[x++]];

  3574 					dest += 3;

  3575 				      }

  3576 				    break;

  3577 				  }

  3578 				case 32:

  3579 

  3580 				  {

  3581 				    u32 *dest = (u32 *)pix +

  3582 				      (gbBorderLineSkip + 1) * (register_LY + gbBorderRowSkip + 1)

  3583 				      + gbBorderColumnSkip;

  3584 				    for (int x = 0; x < 160; )

  3585 				      {

  3586 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3587 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3588 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3589 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3590 

  3591 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3592 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3593 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3594 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3595 

  3596 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3597 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3598 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3599 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3600 

  3601 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3602 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3603 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3604 					*dest++ = systemColorMap32[gbLineMix[x++]];

  3605 				      }

  3606 				    break;

  3607 				  }

  3608 				}

  3609 			    }

  3610 			}

  3611 		    }

  3612 		  gbLcdTicks += GBLCD_MODE_0_CLOCK_TICKS;

  3613 		  gbLcdMode	= 0;

  3614 		  // only one LCD interrupt per line. may need to generalize...

  3615 		  if (!(register_STAT & 0x40) ||

  3616 		      (register_LY != register_LYC))

  3617 		    {

  3618 		      if (register_STAT & 0x08)

  3619 			gbInterrupt |= 2;

  3620 		    }

  3621 		  if (gbHdmaOn)

  3622 		    {

  3623 		      gbDoHdma();

  3624 		    }

  3625 		  break;

  3626 		}

  3627 	      // mark the correct lcd mode on STAT register

  3628 	      register_STAT = (register_STAT & 0xfc) | gbLcdMode;

  3629 	    }

  3630 	}

  3631 

  3632       // serial emulation

  3633       if (gbSerialOn)

  3634 	{

  3635 #ifdef LINK_EMULATION

  3636 	  if (linkConnected)

  3637 	    {

  3638 	      gbSerialTicks -= clockTicks;

  3639 

  3640 	      while (gbSerialTicks <= 0)

  3641 		{

  3642 		  // increment number of shifted bits

  3643 		  gbSerialBits++;

  3644 		  linkProc();

  3645 		  if (gbSerialOn && (gbMemory[0xff02] & 1))

  3646 		    {

  3647 		      if (gbSerialBits == 8)

  3648 			{

  3649 			  gbSerialBits	  = 0;

  3650 			  gbMemory[0xff01]  = 0xff;

  3651 			  gbMemory[0xff02] &= 0x7f;

  3652 			  gbSerialOn		  = 0;

  3653 			  gbInterrupt		 |= 8;

  3654 			  gbSerialTicks	  = 0;

  3655 			}

  3656 		    }

  3657 		  gbSerialTicks += GBSERIAL_CLOCK_TICKS;

  3658 		}

  3659 	    }

  3660 	  else

  3661 	    {

  3662 #endif

  3663 	      if (gbMemory[0xff02] & 1)

  3664 		{

  3665 		  gbSerialTicks -= clockTicks;

  3666 

  3667 		  // overflow

  3668 		  while (gbSerialTicks <= 0)

  3669 		    {

  3670 		      // shift serial byte to right and put a 1 bit in its place

  3671 		      //      gbMemory[0xff01] = 0x80 | (gbMemory[0xff01]>>1);

  3672 		      // increment number of shifted bits

  3673 		      gbSerialBits++;

  3674 		      if (gbSerialBits == 8)

  3675 			{

  3676 			  // end of transmission

  3677 			  if (gbSerialFunction)    // external device

  3678 			    gbMemory[0xff01] = gbSerialFunction(gbMemory[0xff01]);

  3679 			  else

  3680 			    gbMemory[0xff01] = 0xff;

  3681 			  gbSerialTicks	  = 0;

  3682 			  gbMemory[0xff02] &= 0x7f;

  3683 			  gbSerialOn		  = 0;

  3684 			  gbInterrupt		 |= 8;

  3685 			  gbSerialBits	  = 0;

  3686 			}

  3687 		      else

  3688 			gbSerialTicks += GBSERIAL_CLOCK_TICKS;

  3689 		    }

  3690 		}

  3691 #ifdef LINK_EMULATION

  3692 	    }

  3693 #endif

  3694 	}

  3695 

  3696       // timer emulation

  3697       if (gbTimerOn)

  3698 	{

  3699 	  gbTimerTicks -= clockTicks;

  3700 

  3701 	  while (gbTimerTicks <= 0)

  3702 	    {

  3703 	      register_TIMA++;

  3704 

  3705 	      if (register_TIMA == 0)

  3706 		{

  3707 		  // timer overflow!

  3708 

  3709 		  // reload timer modulo

  3710 		  register_TIMA = register_TMA;

  3711 

  3712 		  // flag interrupt

  3713 		  gbInterrupt |= 4;

  3714 		}

  3715 

  3716 	      gbTimerTicks += gbTimerClockTicks;

  3717 	    }

  3718 	}

  3719 

  3720       /*

  3721 	if(soundOffFlag)

  3722 	{

  3723 	if(synchronize && !speedup)

  3724 	{

  3725 	synchronizeTicks -= clockTicks;

  3726 

  3727 	while(synchronizeTicks < 0)

  3728 	{

  3729 	synchronizeTicks += SYNCHRONIZE_CLOCK_TICKS;

  3730 

  3731 	DWORD now = timeGetTime();

  3732 	gbElapsedTime += (now - timeNow);

  3733 

  3734 	if(gbElapsedTime < 50)

  3735 	{

  3736 	DWORD diff = 50 - gbElapsedTime;

  3737 	Sleep(diff);

  3738 	timeNow = timeGetTime();

  3739 	elapsedTime = timeNow - now - diff;

  3740 	if((int)elapsedTime < 0)

  3741 	elapsedTime = 0;

  3742 	} else

  3743 	{

  3744 	timeNow = timeGetTime();

  3745 	elapsedTime = 0;

  3746 	}

  3747 	}

  3748 	}

  3749 	}

  3750       */

  3751 

  3752       soundTicks -= clockTicks;

  3753       while (soundTicks < 0) // must be < 1 when soundtick_t is real data type

  3754 	{

  3755 	  soundTicks += SOUND_CLOCK_TICKS;

  3756 

  3757 	  gbSoundTick();

  3758 	}

  3759 

  3760       register_IF = gbInterrupt;

  3761 

  3762       if (IFF & 0x20)

  3763 	{

  3764 	  IFF &= 0xdf;

  3765 	  IFF |= 0x01;

  3766 	  gbInterruptWait = 0;

  3767 	}

  3768       else if (gbInterrupt)

  3769 	{

  3770 	  if (gbInterruptWait == 0)

  3771 	    {

  3772 	      //        gbInterruptWait = 0;

  3773 

  3774 	      if (IFF & 0x01)

  3775 		{

  3776 		  if ((gbInterrupt & 1) && (register_IE & 1))

  3777 		    {

  3778 		      gbVblank_interrupt();

  3779 		      return newFrame;

  3780 		    }

  3781 

  3782 		  if ((gbInterrupt & 2) && (register_IE & 2))

  3783 		    {

  3784 		      gbLcd_interrupt();

  3785 		      return newFrame;

  3786 		    }

  3787 

  3788 		  if ((gbInterrupt & 4) && (register_IE & 4))

  3789 		    {

  3790 		      gbTimer_interrupt();

  3791 		      return newFrame;

  3792 		    }

  3793 

  3794 		  if ((gbInterrupt & 8) && (register_IE & 8))

  3795 		    {

  3796 		      gbSerial_interrupt();

  3797 		      return newFrame;

  3798 		    }

  3799 

  3800 		  if ((gbInterrupt & 16) && (register_IE & 16))

  3801 		    {

  3802 		      gbJoypad_interrupt();

  3803 		      return newFrame;

  3804 		    }

  3805 		}

  3806 	    }

  3807 	  else

  3808 	    {

  3809 	      gbInterruptWait -= clockTicks;

  3810 	      if (gbInterruptWait < 0)

  3811 		gbInterruptWait = 0;

  3812 	    }

  3813 	}

  3814 

  3815       if (useOldFrameTiming)

  3816 	{

  3817 	  // old timing code

  3818 	  if (ticksToStop > 0)

  3819 	    return newFrame;

  3820 	}

  3821       else

  3822 	{

  3823 	  if (!newFrame && (register_LCDC & 0x80) != 0)

  3824 	    return newFrame;

  3825 	}

  3826 

  3827       if (!(register_LCDC & 0x80))

  3828 	{

  3829 	  if (!useOldFrameTiming)

  3830 	    {

  3831 	      // FIXME: since register_LY can be reset to 0 by some games, frame length is variable

  3832 	      // and infinite loops can occurr

  3833 	      // for now, it IS necessary to do something on this condition or games like

  3834 	      // Megaman would freeze upon low-level restart interrupt sequence (Start+Select+A+B).

  3835 	      // the only sensible way to fix this issue is to implement the RIGHT frame timing

  3836 #ifdef WANTS_INCOMPLETE_WORKAROUND

  3837 	      if (systemReadJoypads())

  3838 		{

  3839 		  if (gbSgbMode && gbSgbMultiplayer)

  3840 		    {

  3841 		      if (gbSgbFourPlayers)

  3842 			{

  3843 			  gbJoymask[0] = systemGetJoypad(0, false);

  3844 			  gbJoymask[1] = systemGetJoypad(1, false);

  3845 			  gbJoymask[2] = systemGetJoypad(2, false);

  3846 			  gbJoymask[3] = systemGetJoypad(3, false);

  3847 			}

  3848 		      else

  3849 			{

  3850 			  gbJoymask[0] = systemGetJoypad(0, false);

  3851 			  gbJoymask[1] = systemGetJoypad(1, false);

  3852 			}

  3853 		    }

  3854 		  else

  3855 		    {

  3856 		      gbJoymask[0] = systemGetJoypad(0, false);

  3857 		    }

  3858 		}

  3859 	      else

  3860 		gbJoymask[0] = gbJoymask[1] = gbJoymask[2] = gbJoymask[3] = 0;

  3861 #else

  3862 #endif

  3863 	    }

  3864 	}

  3865 

  3866       // makes sure frames are really divided across input sampling boundaries which occur at a constant rate

  3867       //if (newFrame || useOldFrameTiming)

  3868       //	{

  3869 	  ///			extern void VBAOnEnteringFrameBoundary();

  3870 	  ///			VBAOnEnteringFrameBoundary();

  3871 

  3872       //  break;

  3873       //	}

  3874       // RLM removing for loop }

  3875   return newFrame;

  3876 }

  3877 

  3878 

  3879 

  3880 //RLM: 

  3881 int getRamSize(){

  3882   return gbRamSize;

  3883 }

  3884 

  3885 int getRomSize(){

  3886   return gbRomSize;

  3887 }

  3888 

  3889 void storeMemory(int32* store){

  3890   int i;

  3891   int j;

  3892   for (i = 0; i < 0x10; i++){

  3893     for (j = 0; j < 0x1000; j++){

  3894       store[i*0x1000 + j] = (int32) gbMemoryMap[i][j];

  3895     }

  3896   }

  3897 }

  3898 

  3899 void writeMemory(int32* newMemory){

  3900   int i;

  3901   int j;

  3902   for (i = 0; i < 0x10; i++){

  3903     for (j = 0; j< 0x1000; j++){

  3904       gbMemoryMap[i][j] = (u8)(0xFF & newMemory[i*0x1000 + j]);

  3905     }

  3906   }

  3907 }

  3908 

  3909 void storeRam(int32* store){

  3910   int i;

  3911   for (i = 0; i < gbRamSize; i++){

  3912     store[i] = (int32) gbRam[i];

  3913   }

  3914 }

  3915 

  3916 void storeRom(int32* store){

  3917   int i;

  3918   for (i = 0; i < gbRomSize; i++){

  3919     store[i] = (int32) gbRom[i];

  3920   }

  3921 }

  3922 

  3923 void writeRom(int32* new_rom){

  3924   int i;

  3925   for (i = 0; i < gbRomSize; i++){

  3926     gbRom[i] = (u8)(0xFF & new_rom[i]);

  3927   }

  3928 }

  3929 

  3930 void storeWRam(int32* store){

  3931   int i;

  3932   for (i = 0; i < 0x8000; i++){

  3933     store[i] = (int32) gbWram[i];

  3934   }

  3935 }

  3936 

  3937 void storeVRam(int32* store){

  3938   int i;

  3939   for (i = 0; i < 0x4000; i++){

  3940     store[i] = (int32) gbVram[i];

  3941   }

  3942 }

  3943 

  3944 

  3945 void storeRegisters(int32* store){

  3946   store[0] = (int32) PC.W;

  3947   store[1] = (int32) SP.W;

  3948   store[2] = (int32) AF.W;

  3949   store[3] = (int32) BC.W;

  3950   store[4] = (int32) DE.W;

  3951   store[5] = (int32) HL.W;

  3952 

  3953   store[6] = (int32) IFF;

  3954 

  3955   store[7] = (int32) register_DIV;

  3956   store[8] = (int32) register_TIMA;

  3957   store[9] = (int32) register_TMA;

  3958   store[10] = (int32) register_TAC;

  3959   store[11] = (int32) register_IF;

  3960   store[12] = (int32) register_LCDC;

  3961   store[13] = (int32) register_STAT;

  3962   store[14] = (int32) register_SCY;

  3963   store[15] = (int32) register_SCX;

  3964   store[16] = (int32) register_LY;

  3965   store[17] = (int32) register_LYC;

  3966   store[18] = (int32) register_DMA;

  3967   store[19] = (int32) register_WY;

  3968   store[20] = (int32) register_WX;

  3969   store[21] = (int32) register_VBK;

  3970   store[22] = (int32) register_HDMA1;

  3971   store[23] = (int32) register_HDMA2;

  3972   store[24] = (int32) register_HDMA3;

  3973   store[25] = (int32) register_HDMA4;

  3974   store[26] = (int32) register_HDMA5;

  3975   store[27] = (int32) register_SVBK;

  3976   store[28] = (int32) register_IE;

  3977 }

  3978 

  3979 void setRegisters(int32* registers){

  3980   PC.W = (u16) (0xFFFF & registers[0]);

  3981   SP.W = (u16) (0xFFFF & registers[1]);

  3982   AF.W = (u16) (0xFFFF & registers[2]);

  3983   BC.W = (u16) (0xFFFF & registers[3]);

  3984   DE.W = (u16) (0xFFFF & registers[4]);

  3985   HL.W = (u16) (0xFFFF & registers[5]);

  3986   IFF  = (u16) (0xFFFF & registers[6]);

  3987 

  3988   register_DIV = (u8) (0xFF & registers[7]);

  3989   register_TIMA = (u8) (0xFF & registers[8]);

  3990   register_TMA = (u8) (0xFF & registers[9]);

  3991   register_TAC = (u8) (0xFF & registers[10]);

  3992   register_IF = (u8) (0xFF & registers[11]);

  3993   register_LCDC = (u8) (0xFF & registers[12]);

  3994   register_STAT = (u8) (0xFF & registers[13]);

  3995   register_SCY = (u8) (0xFF & registers[14]);

  3996   register_SCX = (u8) (0xFF & registers[15]);

  3997   register_LY = (u8) (0xFF & registers[16]);

  3998   register_LYC = (u8) (0xFF & registers[17]);

  3999   register_DMA = (u8) (0xFF & registers[18]);

  4000   register_WY = (u8) (0xFF & registers[19]);

  4001   register_WX = (u8) (0xFF & registers[20]);

  4002   register_VBK = (u8) (0xFF & registers[21]);

  4003   register_HDMA1 = (u8) (0xFF & registers[22]);

  4004   register_HDMA2 = (u8) (0xFF & registers[23]);

  4005   register_HDMA3 = (u8) (0xFF & registers[24]);

  4006   register_HDMA4 = (u8) (0xFF & registers[25]);

  4007   register_HDMA5 = (u8) (0xFF & registers[26]);

  4008   register_SVBK = (u8) (0xFF & registers[27]);

  4009   register_IE = (u8) (0xFF & registers[28]);

  4010 }

  4011 

  4012 struct EmulatedSystem GBSystem =

  4013   {

  4014     // emuMain

  4015     gbEmulate,

  4016     // emuReset

  4017     gbReset,

  4018     // emuCleanUp

  4019     gbCleanUp,

  4020     // emuReadBattery

  4021     gbReadBatteryFile,

  4022     // emuWriteBattery

  4023     gbWriteBatteryFile,

  4024     // emuReadBatteryFromStream

  4025     gbReadBatteryFromStream,

  4026     // emuWriteBatteryToStream

  4027     gbWriteBatteryToStream,

  4028     // emuReadState

  4029     gbReadSaveState,

  4030     // emuWriteState

  4031     gbWriteSaveState,

  4032     // emuReadStateFromStream

  4033     gbReadSaveStateFromStream,

  4034     // emuwritestatetostream

  4035     gbWriteSaveStateToStream,

  4036     // emuReadMemState

  4037     gbReadMemSaveState,

  4038     // emuWriteMemState

  4039     gbWriteMemSaveState,

  4040     // emuWritePNG

  4041     gbWritePNGFile,

  4042     // emuWriteBMP

  4043     gbWriteBMPFile,

  4044     // emuUpdateCPSR

  4045     NULL,

  4046     // emuHasDebugger

  4047     false,

  4048     // emuCount

  4049 #ifdef FINAL_VERSION

  4050     70000 / 4,

  4051 #else

  4052     1000,

  4053 #endif

  4054   };

  4055 

  4056 // is there a reason to use more than one set of counters?

  4057 EmulatedSystemCounters &GBSystemCounters = systemCounters;

  4058 

  4059 /*

  4060   EmulatedSystemCounters GBSystemCounters =

  4061   {

  4062   // frameCount

  4063   0,

  4064   // lagCount

  4065   0,

  4066   // lagged

  4067   true,

  4068   // laggedLast

  4069   true,

  4070   };

  4071 */
author	Robert McIntyre <rlm@mit.edu>
date	Thu, 24 May 2012 17:33:25 -0500
parents	893c753f8088
children	a6d060a64246