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1 #include <cstdio>
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2 #include <cstring>
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3
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4 #include "GBAGlobals.h"
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5
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6 extern void (*dbgOutput)(char *, u32);
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7 extern int systemVerbose;
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8
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9 static bool agbPrintEnabled = false;
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10 static bool agbPrintProtect = false;
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11
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12 bool agbPrintWrite(u32 address, u16 value)
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13 {
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14 if (agbPrintEnabled)
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15 {
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16 if (address == 0x9fe2ffe) // protect
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17 {
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18 agbPrintProtect = (value != 0);
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19 debuggerWriteHalfWord(address, value);
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20 return true;
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21 }
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22 else
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23 {
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24 if (agbPrintProtect &&
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25 ((address >= 0x9fe20f8 && address <= 0x9fe20ff) // control structure
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26 || (address >= 0x8fd0000 && address <= 0x8fdffff)
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27 || (address >= 0x9fd0000 && address <= 0x9fdffff)))
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28 {
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29 debuggerWriteHalfWord(address, value);
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30 return true;
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31 }
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32 }
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33 }
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34 return false;
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35 }
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36
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37 void agbPrintReset()
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38 {
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39 agbPrintProtect = false;
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40 }
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41
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42 void agbPrintEnable(bool enable)
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43 {
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44 agbPrintEnabled = enable;
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45 }
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46
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47 bool agbPrintIsEnabled()
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48 {
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49 return agbPrintEnabled;
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50 }
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51
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52 void agbPrintFlush()
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53 {
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54 u16 get = debuggerReadHalfWord(0x9fe20fc);
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55 u16 put = debuggerReadHalfWord(0x9fe20fe);
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56
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57 u32 address = (debuggerReadHalfWord(0x9fe20fa) << 16);
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58 if (address != 0xfd0000 && address != 0x1fd0000)
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59 {
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60 dbgOutput("Did you forget to call AGBPrintInit?\n", 0);
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61 // get rid of the text otherwise we will continue to be called
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62 debuggerWriteHalfWord(0x9fe20fc, put);
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63 return;
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64 }
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65
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66 u8 *data = &rom[address];
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67
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68 while (get != put)
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69 {
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70 char c = data[get++];
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71 char s[2];
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72 s[0] = c;
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73 s[1] = 0;
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74
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75 if (systemVerbose & VERBOSE_AGBPRINT)
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76 dbgOutput(s, 0);
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77 if (c == '\n')
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78 break;
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79 }
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80 debuggerWriteHalfWord(0x9fe20fc, get);
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81 }
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82
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