1.1 --- a/clojure/com/aurellem/gb/rlm_assembly.clj	Thu Apr 12 12:08:36 2012 -0500
     1.2 +++ b/clojure/com/aurellem/gb/rlm_assembly.clj	Wed Apr 11 23:40:01 2012 -0500
     1.3 @@ -5,6 +5,13 @@
     1.4    (:use (com.aurellem.run bootstrap-1))
     1.5    (:import [com.aurellem.gb.gb_driver SaveState]))
     1.6  
     1.7 +
     1.8 +;; MODE-SELECT
     1.9 +;; SET-LENGTH
    1.10 +;; SET-TARGET
    1.11 +;; WRITE
    1.12 +;; JUMP
    1.13 +
    1.14  ;; Specs for Main Bootstrap Program
    1.15  
    1.16  ;; Number-Input
    1.17 @@ -64,7 +71,8 @@
    1.18      (+ 256 n) n))
    1.19  
    1.20  (defn frame-metronome []
    1.21 -  (let [timing-loop
    1.22 +  (let [init [0xC5] ;; save value of BC
    1.23 +        timing-loop
    1.24          [0x01 ; \
    1.25           0x43 ;  |
    1.26           0xFE ;  |  load 0xFF44 into BC without repeats
    1.27 @@ -81,7 +89,7 @@
    1.28          [0x05 ;; dec B, which is 0xFF
    1.29           0x20 ;; spin until B==0
    1.30           0xFD]]
    1.31 -    (concat timing-loop continue-if-144 spin-loop)))
    1.32 +    (concat init timing-loop continue-if-144 spin-loop)))
    1.33  
    1.34  (defn test-frame-metronome
    1.35    "Ensure that frame-metronome ticks exactly once every frame."
    1.36 @@ -97,7 +105,8 @@
    1.37                 (DE! 0)
    1.38                 (set-memory-range pokemon-list-start program)
    1.39                 (PC! pokemon-list-start))
    1.40 -           E-after-moves (E (run-moves count-frames (repeat steps [])))]
    1.41 +           E-after-moves
    1.42 +           (E (run-moves count-frames (repeat steps [])))]
    1.43         (println "E:" E-after-moves) 
    1.44         (assert (= steps E-after-moves))
    1.45  
    1.46 @@ -143,6 +152,7 @@
    1.47     0xB0 ;; (or A B) -> A
    1.48   
    1.49     0x2F ;; (NOT A) -> A
    1.50 +   
    1.51     ])
    1.52  
    1.53  (defn test-read-user-input []
    1.54 @@ -179,27 +189,54 @@
    1.55  (def do-write-mode         (Integer/parseInt "00010000" 2))
    1.56  
    1.57  (defn main-bootstrap-program [start-address]
    1.58 +  ;; Register Use:
    1.59 +  
    1.60 +  ;; BC persistent scratch
    1.61 +  ;; 
    1.62 +  ;; A  user-input
    1.63 +  ;; HL target-address
    1.64 +  ;; D  current-mode
    1.65 +  ;; E  bytes-to-write
    1.66 +
    1.67 +
    1.68 +  ;; Modes are:
    1.69 +
    1.70 +  ;; single-action-modes:
    1.71 +  ;; SET-MODE
    1.72 +  ;; SET-TARGET-HIGH
    1.73 +  ;; SET-TARGET-LOW
    1.74 +  ;; SET-WRITE-LENGTH
    1.75 +  ;; JUMP
    1.76 +
    1.77 +  ;; multi-action-modes
    1.78 +  ;; WRITE
    1.79 +
    1.80 +  
    1.81 +  
    1.82    (let [[start-high start-low] (disect-bytes-2 start-address)
    1.83 -        jump-distance (+ (count (frame-metronome)
    1.84 -                                (read-user-input)))
    1.85 +        jump-distance (+ (count (frame-metronome))
    1.86 +                                (read-user-input))
    1.87  
    1.88          init
    1.89 -        [0xAF 0x5F] ;; 0->A; 0->E;
    1.90 +        [0xAF 0x5F 0x57 0x47] ;; 0->A; 0->E; 0->D; 0->B
    1.91  
    1.92 +        
    1.93 +        
    1.94  
    1.95 -        header
    1.96 -        [0x47]  ;; A->B
    1.97 +        input
    1.98 +        [0xC1  ;; pop BC so it's not volatile
    1.99 +         ;; some condition
   1.100 +         ;; to skip if not in input
   1.101 +         ;; mode
   1.102 +         
   1.103 +         
   1.104 +         
   1.105 +        
   1.106 +         0xE9 ;; jump to (HL)
   1.107  
   1.108 -        mode-select
   1.109 -        [0xCB 0x43 ;; last-bit is zero
   1.110 -         0x28 :to-beginning
   1.111 -         0x5F];; A->E
   1.112 -
   1.113 -        input-section
   1.114 -        [0xCB 0x4B  ;; test bit 0 of E
   1.115 -         0x28 0x03  
   1.116 -
   1.117 -
   1.118 +         0x22 ;; A->(HL) ; inc HL
   1.119 +         
   1.120 +         
   1.121           0x57 ;; A->D
   1.122           
   1.123           0x67 ;; A->H
   1.124 @@ -219,54 +256,7 @@
   1.125          ;; add C to HL
   1.126          ;; jp HL
   1.127          
   1.128 -        prepare-HL
   1.129 -        [0xD1 ;; pop DE causes D and E to be non-volitale
   1.130 -
   1.131 -         0x21           ;; load HL from literal nn
   1.132 -         :dispatch-high 
   1.133 -         :dispatch-low]
   1.134 -         
   1.135 -        mode-dispatch
   1.136 -        [0xC5 ;; push BC
   1.137 -         0x06  ;\
   1.138 -         0x01  ; | 0->B without repeats
   1.139 -         0x05  ;/
   1.140 -         0x09  ;; add BC to HL
   1.141 -         0xC1 ;; pop BC
   1.142 -         0xE9] ;; jp
   1.143 -        
   1.144 -        mode-select
   1.145 -        [0x4F  ;; A->C  (this is the address of dispatch above)
   1.146 -         0x18  ;; return
   1.147 -         :jump-to-end]
   1.148 -
   1.149 -        input-bytes-to-write
   1.150 -        [0x47  ;; A->B
   1.151 -         0x18  ;; return
   1.152 -         :jump-to-end]
   1.153 -
   1.154 -        
   1.155 -
   1.156 -        
   1.157 -        
   1.158 -         cleanup
   1.159 -         [0xD5 ;; push DE
   1.160 -          0x18
   1.161 -          0x??];; jump all the way back to frame-metronome
   1.162 -
   1.163 -
   1.164 -;;          (concat init (frame-metronome) (read-user-input)
   1.165 -;;                  prepare-HL here mode-dispatch)
   1.166 -                 
   1.167 -        
   1.168 -        
   1.169 -
   1.170 -         
   1.171 -         
   1.172 -
   1.173 -    
   1.174 -;;     ))
   1.175 -
   1.176 +]]))
   1.177          
   1.178       
   1.179