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annotate clojure/com/aurellem/gb/rlm_assembly.clj @ 384:8013915a07b3

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completed read-user-input by working off of Dylan's version.
author Robert McIntyre <rlm@mit.edu>
date Wed, 11 Apr 2012 14:04:21 -0500
parents 9eae7e914bf0
children 3f3cfc89be91
rev   line source
rlm@377 1 (ns com.aurellem.gb.rlm-assembly
rlm@377 2 "Version of main bootstrap program that is valid output for the
rlm@377 3 item-writer program."
rlm@377 4 (:use (com.aurellem.gb gb-driver assembly util vbm constants))
rlm@377 5 (:use (com.aurellem.run bootstrap-1))
rlm@377 6 (:import [com.aurellem.gb.gb_driver SaveState]))
rlm@377 7
rlm@377 8 ;; Specs for Main Bootstrap Program
rlm@377 9
rlm@377 10 ;; Number-Input
rlm@377 11 ;; Number input works using all eight buttons to
rlm@377 12 ;; spell out an 8 bit number. The order of buttons is
rlm@377 13 ;; [:d :u :l :r :start :select :b :a] --> 11111111
rlm@377 14 ;; [ :l :start :a] --> 00101001
rlm@377 15
rlm@377 16 ;;; MODE-SELECT
rlm@377 17 ;; The bootstrap program starts in MODE-SELECT mode.
rlm@377 18 ;; MODE-SELECT transitions to one of three modes depending
rlm@377 19 ;; on which buttons are pressed:
rlm@377 20 ;; 0 (no-buttons) : MODE-SELECT
rlm@377 21 ;; 8 [:start] : WRITE-BYTES
rlm@377 22 ;; 0xFF (all-buttons) : JUMP
rlm@377 23
rlm@377 24 ;;; WRITE-BYTES
rlm@377 25
rlm@377 26 ;; WRITE-BYTES mode writes sequences of arbitray values to
rlm@377 27 ;; arbitray memory locations. It expects you to enter a
rlm@377 28 ;; header of three bytes describing what to write:
rlm@377 29
rlm@377 30 ;; Byte 0 : Number of Bytes to Write
rlm@377 31 ;; Byte 1 : Start Address High Byte
rlm@377 32 ;; Byte 1 : Start Address Low Byte
rlm@377 33
rlm@377 34 ;; Then, you enter the number of bytes specified in Byte 0
rlm@377 35 ;; they are written to the start address in
rlm@377 36 ;; sequence. After the last byte is written control
rlm@377 37 ;; returns to MODE-SELECT mode.
rlm@377 38
rlm@377 39 ;; Example: to write the sequence [1 2 3 4] starting at
rlm@377 40 ;; address 0xC01F enter
rlm@377 41 ;; Byte 0 : 4 (will write four bytes)
rlm@377 42 ;; Byte 1 : 0xC0 (high byte of 0xC01F)
rlm@377 43 ;; Byte 2 : 0x1F (low byte of 0xC01F)
rlm@377 44 ;; Byte 3 : 1 (write 1 to 0xC01F)
rlm@377 45 ;; Byte 4 : 2 (write 2 to 0xC020)
rlm@377 46 ;; Byte 5 : 3 (write 3 to 0xC021)
rlm@377 47 ;; Byte 6 : 4 (write 4 to 0xC022)
rlm@377 48
rlm@377 49 ;;; JUMP
rlm@377 50 ;; JUMP mode jumps program control to any arbitray
rlm@377 51 ;; location. It expects you to enter two bytes which
rlm@377 52 ;; correspond to the high and low bytes of the memory
rlm@377 53 ;; address to which you want to jump.
rlm@377 54 ;; Byte 0 : Jump Address High Byte
rlm@377 55 ;; Byte 1 : Jump Address Low Byte
rlm@377 56
rlm@377 57 ;; Example: to jump to address 0x1234 enter
rlm@377 58 ;; Byte 0 : 0x12 (high byte of 0x1234)
rlm@377 59 ;; Byte 1 : 0x34 (low byte of 0x1234)
rlm@377 60
rlm@377 61
rlm@378 62 (defn ->signed-8-bit [n]
rlm@378 63 (if (< n 0)
rlm@378 64 (+ 256 n) n))
rlm@378 65
rlm@378 66 (defn frame-metronome []
rlm@381 67 (let [timing-loop
rlm@383 68 [0x01 ; \
rlm@383 69 0x43 ; |
rlm@383 70 0xFE ; | load 0xFF44 into BC without repeats
rlm@383 71 0x0C ; |
rlm@383 72 0x04 ; /
rlm@382 73 0x0A] ;; (BC) -> A, now A = LY (vertical line coord)
rlm@379 74 continue-if-144
rlm@379 75 [0xFE
rlm@379 76 144 ;; compare LY (in A) with 144
rlm@379 77 0x20 ;; jump back to beginning if LY != 144 (not-v-blank)
rlm@379 78 (->signed-8-bit
rlm@381 79 (+ -4 (- (count timing-loop))))]
rlm@381 80 spin-loop
rlm@382 81 [0x05 ;; dec B, which is 0xFF
rlm@382 82 0x20 ;; spin until B==0
rlm@381 83 0xFD]]
rlm@381 84 (concat timing-loop continue-if-144 spin-loop)))
rlm@378 85
rlm@379 86 (defn test-frame-metronome
rlm@379 87 "Ensure that frame-metronome ticks exactly once every frame."
rlm@379 88 ([] (test-frame-metronome 151))
rlm@379 89 ([steps]
rlm@382 90 (let [inc-D [0x14 0x18
rlm@379 91 (->signed-8-bit
rlm@379 92 (+ -3 (- (count (frame-metronome)))))]
rlm@382 93 program (concat (frame-metronome) inc-D)
rlm@379 94 count-frames
rlm@379 95 (-> (tick (mid-game))
rlm@379 96 (IE! 0)
rlm@382 97 (DE! 0)
rlm@379 98 (set-memory-range pokemon-list-start program)
rlm@379 99 (PC! pokemon-list-start))
rlm@382 100 D-after-moves (D (run-moves count-frames (repeat steps [])))]
rlm@382 101 (println "D:" D-after-moves)
rlm@382 102 (assert (= steps D-after-moves))
rlm@379 103
rlm@382 104 (println "D =" D-after-moves "after" steps "steps")
rlm@379 105 count-frames)))
rlm@379 106
rlm@384 107 (defn read-user-input []
rlm@384 108 [0x01 ;\
rlm@384 109 0x01 ;|
rlm@384 110 0xFE ;| load 0xFF00 into BC without repeats
rlm@384 111 0x04 ;|
rlm@384 112 0x0D ;/
rlm@384 113
rlm@384 114 0x3E
rlm@384 115 (Integer/parseInt "00100000" 2) ; prepare to measure d-pad
rlm@384 116
rlm@384 117 0x02
rlm@384 118 0x0A ;; get D-pad info
rlm@384 119
rlm@384 120 0xE6 ;; select bottom bits of A
rlm@384 121 0x0F
rlm@384 122
rlm@384 123 0xCB
rlm@384 124 0x37 ;; swap A nybbles
rlm@384 125
rlm@384 126 0x57 ;; A->D
rlm@384 127
rlm@384 128 0x3E
rlm@384 129 (Integer/parseInt "00010000" 2) ; prepare to measure buttons
rlm@384 130
rlm@384 131 0x02
rlm@384 132 0x0A ;; get button info
rlm@384 133
rlm@384 134 0xE6
rlm@384 135 0x0F ;; select bottom bits of A
rlm@384 136
rlm@384 137 0xB2 ;; combine together into A
rlm@384 138 0x2F ;; (NOT A) -> A
rlm@384 139 ])
rlm@384 140
rlm@384 141 (defn test-read-user-input []
rlm@384 142 (let [program
rlm@384 143 (concat
rlm@384 144 (frame-metronome) (read-user-input)
rlm@384 145 [0x5F ;; A-> E
rlm@384 146 0x18
rlm@384 147 (->signed-8-bit
rlm@384 148 (+ (- (count (frame-metronome)))
rlm@384 149 (- (count (read-user-input)))
rlm@384 150 (- 3)))])
rlm@384 151 read-input
rlm@384 152 (-> (tick (mid-game))
rlm@384 153 (IE! 0)
rlm@384 154 (set-memory-range pokemon-list-start program)
rlm@384 155 (PC! pokemon-list-start))]
rlm@384 156 (dorun
rlm@384 157 (for [i (range 0x100)]
rlm@384 158 (assert (= (E (step read-input (buttons i))) i))))
rlm@384 159 (println "Tested all inputs.")
rlm@384 160 read-input))
rlm@384 161
rlm@384 162
rlm@384 163
rlm@377 164 (defn main-bootstrap-program [start-address]
rlm@378 165 (let [[start-high start-low] (disect-bytes-2 start-address)
rlm@378 166 ]
rlm@378 167 ))
rlm@378 168
rlm@378 169
rlm@378 170
rlm@378 171
rlm@378 172
rlm@378 173
rlm@378 174
rlm@378 175
rlm@378 176
rlm@377 177
rlm@377 178 ;;;;;; TESTS ;;;;;;
rlm@377 179
rlm@377 180 (defn bootstrap-base []
rlm@377 181 (let [program (main-bootstrap-program pokemon-list-start)]
rlm@377 182 ;; make sure program is valid output for item-writer
rlm@377 183 (bootstrap-pattern program)
rlm@377 184 (-> (tick (mid-game))
rlm@377 185 (set-memory-range pokemon-list-start program)
rlm@377 186 (PC! pokemon-list-start))))
rlm@377 187
rlm@377 188 (defn test-write-bytes-mode []
rlm@377 189 (let [target-address 0xC00F
rlm@377 190 [target-high target-low] (disect-bytes-2 target-address)
rlm@377 191 assembly [0xF3 0x18 0xFE 0x12]
rlm@377 192 get-mem-region #(subvec (vec (memory %))
rlm@377 193 target-address (+ target-address 20))
rlm@377 194 before (bootstrap-base)
rlm@377 195 after
rlm@377 196 (-> before
rlm@377 197 (step []) ; make sure it can handle blanks
rlm@377 198 (step []) ; at the beginning.
rlm@377 199 (step [])
rlm@377 200 (step [:start]) ; select WRITE-BYTES mode
rlm@377 201 (step (buttons 4)) ; write 4 bytes
rlm@377 202 (step (buttons target-high))
rlm@377 203 (step (buttons target-low))
rlm@377 204 (step (buttons (nth assembly 0)))
rlm@377 205 (step (buttons (nth assembly 1)))
rlm@377 206 (step (buttons (nth assembly 2)))
rlm@377 207 (step (buttons (nth assembly 3)))
rlm@377 208 (step [])
rlm@377 209 (step [])
rlm@377 210 (step []))]
rlm@377 211 (println "before :" (get-mem-region before))
rlm@377 212 (println "after :" (get-mem-region after))
rlm@377 213 (assert (= assembly (take 4 (get-mem-region after))))
rlm@377 214 after))
rlm@377 215
rlm@377 216 (defn test-jump-mode []
rlm@377 217 (let [target-address 0xC00F
rlm@377 218 [target-high target-low] (disect-bytes-2 target-address)
rlm@377 219 post-jump
rlm@377 220 (-> (test-write-bytes-mode)
rlm@377 221 (step [])
rlm@377 222 (step [])
rlm@377 223 (step [])
rlm@377 224 (step (buttons 0xFF)) ; Select JUMP mode.
rlm@377 225 (step (buttons target-high))
rlm@377 226 (step (buttons target-low)))
rlm@377 227 program-counters
rlm@377 228 (capture-program-counter
rlm@377 229 post-jump
rlm@377 230 10000)]
rlm@377 231 (println program-counters)
rlm@377 232 (assert (contains? (set program-counters) target-address))
rlm@377 233 post-jump))