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annotate clojure/com/aurellem/exp/item_bridge.clj @ 320:9637a0f52e7b

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located item-list related addresses.
author Robert McIntyre <rlm@mit.edu>
date Tue, 03 Apr 2012 23:17:33 -0500
parents 92c47a9cdaea
children 3b3cd62b6106
rev   line source
rlm@170 1 (ns com.aurellem.exp.item-bridge
rlm@179 2 (:use (com.aurellem.gb saves util constants gb-driver vbm items assembly))
rlm@319 3 (:use (com.aurellem.run util title save-corruption))
rlm@179 4 ;;(:use (com.aurellem.exp pokemon))
rlm@154 5 (:import [com.aurellem.gb.gb_driver SaveState]))
rlm@130 6
rlm@131 7 (defn corrupt-item-state []
rlm@131 8 (second (destroy-item-end-of-list-marker)))
rlm@131 9
rlm@131 10 (defn corrupt-item-state []
rlm@131 11 (read-state "corrupt-items"))
rlm@131 12
rlm@313 13 (defn view-memory-range
rlm@313 14 ([start end]
rlm@313 15 (view-memory-range
rlm@313 16 @current-state start end))
rlm@313 17 ([state start end]
rlm@313 18 (dorun
rlm@313 19 (map (fn [loc val]
rlm@313 20 (println (format "%04X : %02X" loc val)))
rlm@313 21 (range start end) (subvec (vec (memory state)) start end)))
rlm@313 22 state))
rlm@131 23
rlm@133 24 (defn almost-broken
rlm@133 25 "if one more memory location is turned into 0x03, the game crashes."
rlm@133 26 [n]
rlm@133 27 (view-memory-range
rlm@133 28 (set-inv-mem (mid-game)
rlm@133 29 (concat [0xFF] (repeat 64 0x03)
rlm@133 30 (subvec (vec (memory (mid-game)))
rlm@133 31 (+ item-list-start 65)
rlm@133 32 (+ item-list-start 65 n))
rlm@170 33 (repeat (- 255 65 n) 0x03)))
rlm@133 34 item-list-start (+ item-list-start 255)))
rlm@131 35
rlm@133 36 (defn actually-broken
rlm@170 37 "if this memory location is turned into 0x03, the game crashes."
rlm@133 38 []
rlm@133 39 (set-memory (mid-game) 0xD35D 0x03))
rlm@131 40
rlm@131 41
rlm@133 42 ;; (almost-broken 20) more or less works
rlm@133 43
rlm@133 44 (defn capture-program-counter
rlm@133 45 "records the program counter for each tick"
rlm@133 46 [^SaveState state ticks]
rlm@133 47 (let [i (atom 0)]
rlm@133 48 (reduce (fn [[program-counters state] _]
rlm@133 49 (println (swap! i inc))
rlm@133 50 [(conj program-counters (PC state))
rlm@133 51 (tick state)])
rlm@133 52 [[] state]
rlm@133 53 (range ticks))))
rlm@133 54
rlm@133 55
rlm@133 56 (defn capture-program-counter
rlm@133 57 [^SaveState state ticks]
rlm@176 58 (tick state)
rlm@176 59
rlm@133 60 (loop [i 0
rlm@133 61 pcs []]
rlm@133 62 (if (= i ticks)
rlm@179 63 (filter (partial < 0x2000)(sort (set pcs)))
rlm@133 64 (do
rlm@133 65 (com.aurellem.gb.Gb/tick)
rlm@133 66 (recur (inc i)
rlm@133 67 (conj pcs (first (registers))))))))
rlm@170 68
rlm@170 69 (defn loop-program []
rlm@174 70 [0x00 ;0xD31D ;; disable-interrupts
rlm@170 71
rlm@170 72 0xC3 ;; loop forever
rlm@170 73 0x1D
rlm@170 74 0xD3])
rlm@170 75
rlm@170 76 (def map-function-address-start 0xD36D)
rlm@170 77
rlm@170 78 (defn test-loop []
rlm@174 79 (continue!
rlm@170 80 (-> (mid-game)
rlm@170 81 (set-memory-range 0xD31D (loop-program))
rlm@170 82 (set-memory-range
rlm@170 83 map-function-address-start
rlm@174 84 [0xD3 0x1D]))))
rlm@174 85
rlm@170 86 (defn-memo corrupt-moves []
rlm@170 87 (concat
rlm@170 88 (first
rlm@170 89 (->>
rlm@170 90 [[] (mid-game)]
rlm@319 91 (first-difference [:b] [:b :start] AF)
rlm@319 92 (first-difference [] [:d] AF)
rlm@170 93 (play-moves [[] [] [] [:d] [] [] [] [:d] [] [] [:a]])
rlm@319 94 (do-nothing 200)
rlm@319 95 (play-moves [[:a]])
rlm@170 96 (play-moves
rlm@170 97 ;; this section is copied from speedrun-2942
rlm@170 98 ;; and corrupts the save so that the end-of-list marker
rlm@170 99 ;; for the pokemon roster is destroyed, but the save is still
rlm@170 100 ;; playable.
rlm@170 101 [[] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] []
rlm@170 102 [] [] [] [] [] [] [] [] [] [] [:select] [:restart]])
rlm@250 103 (title)
rlm@319 104 (first-difference [] [:start] AF)
rlm@319 105 (first-difference [] [:a] AF)
rlm@319 106 (first-difference [:a] [:a :start] AF)))
rlm@170 107 [[]]))
rlm@170 108
rlm@170 109 (defn corrupt
rlm@170 110 "enter the codes to destroy the
rlm@170 111 pokemon list using save corruption"
rlm@170 112 ([^SaveState state]
rlm@170 113 (run-moves
rlm@170 114 state
rlm@170 115 (corrupt-moves)))
rlm@171 116 ([] (corrupt @current-state)))
rlm@173 117
rlm@173 118 (defn mid-game-corrupt []
rlm@173 119 (read-state "corrupt-mid-game"))
rlm@170 120
rlm@235 121 (defn gen-start-game-corrupt []
rlm@250 122 (->> (second (intro))
rlm@319 123 (first-difference [:b] [:a :b :start] AF)
rlm@235 124 (play-moves (corrupt-moves))))
rlm@212 125
rlm@235 126 (defn start-game-corrupt []
rlm@235 127 (read-state "corrupt-start-game"))
rlm@212 128
rlm@187 129 (defn test-memory-fun [n]
rlm@187 130 (capture-program-counter
rlm@187 131 (set-memory-range
rlm@187 132 (tick (mid-game))
rlm@187 133 0xD36D
rlm@187 134 [0 0])
rlm@187 135 n))
rlm@170 136
rlm@187 137 ;;(def good (test-memory-fun 17000))
rlm@187 138
rlm@187 139 ;;(def bad (test-memory-fun 18000))
rlm@187 140
rlm@187 141
rlm@212 142
rlm@212 143 (defn menu-open-state []
rlm@212 144 (read-state "menu-open"))
rlm@212 145
rlm@212 146 (defn prepare-memory
rlm@212 147 ([^SaveState state]
rlm@212 148 (-> state
rlm@212 149 (set-memory-range 0xD31D (loop-program))
rlm@212 150 (set-memory-range 0xD36D [0x1D 0xD3])))
rlm@212 151 ([] (prepare-memory @current-state)))
rlm@212 152
rlm@233 153 (def memory-function-address-start 0xD36D)
rlm@233 154
rlm@233 155 (defn read-map-function-address
rlm@233 156 ([^SaveState state]
rlm@233 157 (let [mem (memory state)]
rlm@233 158 [(aget mem memory-function-address-start)
rlm@233 159 (aget mem (inc memory-function-address-start))]))
rlm@233 160 ([] (read-map-function-address @current-state)))
rlm@212 161
rlm@212 162 (defn succesful-PC-capture
rlm@212 163 "This function demonstrates successful PC capturing by
rlm@212 164 setting 0xD36D to the value of the start location of
rlm@212 165 a specially prepared program.
rlm@212 166
rlm@212 167 You must run the function and then exit the open menu
rlm@212 168 to see the effect."
rlm@212 169 []
rlm@212 170 (dorun
rlm@212 171 (map #(println (Integer/toHexString %))
rlm@212 172 (capture-program-counter
rlm@212 173 (prepare-memory (menu-open-state))
rlm@212 174 9000000))))
rlm@233 175
rlm@233 176 (defn trampoline-assembly [^SaveState state]
rlm@233 177 (flatten
rlm@233 178 [0x3E ;;
rlm@233 179 0x3E ;; load lemonade into A
rlm@233 180
rlm@233 181 0xEA
rlm@233 182 0x1D
rlm@233 183 0xD3 ;; set first item to lemonade
rlm@233 184
rlm@238 185 0xC3 ;; return control to the game via absolute jump.
rlm@233 186 (read-map-function-address state)
rlm@233 187 ]))
rlm@233 188
rlm@233 189 (defn test-trampoline
rlm@233 190 "Demonstrates item-program execution via the map-function that
rlm@233 191 returns control to the main pokemon game after one loop."
rlm@238 192 [assembly-fn state]
rlm@233 193 (let [insertion-address 0xD33D
rlm@233 194 insertion-address-bits [0x3D 0xD3]]
rlm@233 195 (->
rlm@238 196 state
rlm@233 197 (set-memory-range
rlm@233 198 insertion-address
rlm@238 199 (assembly-fn state))
rlm@233 200 (set-memory-range
rlm@233 201 memory-function-address-start
rlm@235 202 insertion-address-bits))))
rlm@235 203
rlm@239 204 (def lemonade-trampoline
rlm@239 205 (partial test-trampoline
rlm@239 206 trampoline-assembly
rlm@239 207 (menu-open-state)))
rlm@235 208
rlm@238 209 (defn trampoline-assembly-burn-heal [^SaveState state]
rlm@238 210 (flatten
rlm@238 211 [0x3E ;;
rlm@238 212 0x3E ;; load lemonade into A
rlm@238 213
rlm@238 214 0xEA
rlm@238 215 0x1D
rlm@238 216 0xD3 ;; set first item to lemonade
rlm@238 217
rlm@239 218 0xC3 ;; return control to the game via absolute jump
rlm@239 219 0x0C ;; to Route 3's map-function
rlm@238 220 0x55
rlm@238 221 ]))
rlm@235 222
rlm@235 223
rlm@247 224
rlm@247 225 (def pc-item-list-start 0xD539)
rlm@247 226 (def pc-item-list-width 101)
rlm@247 227
rlm@247 228 (def corrupted-items-width 512)
rlm@247 229
rlm@247 230 (defn items-record
rlm@247 231 ([^SaveState state]
rlm@247 232 (subvec (vec (memory state))
rlm@247 233 item-list-start
rlm@247 234 (+ item-list-start corrupted-items-width)))
rlm@247 235 ([] (items-record @current-state)))
rlm@247 236
rlm@247 237 (defn pc-items-record
rlm@247 238 ([^SaveState state]
rlm@247 239 (subvec (vec (memory state))
rlm@247 240 pc-item-list-start
rlm@247 241 (+ pc-item-list-width pc-item-list-start)))
rlm@247 242 ([] (pc-items-record @current-state)))
rlm@247 243
rlm@247 244 (defn print-listing-items
rlm@247 245 ([^SaveState state]
rlm@247 246 (print-listing state item-list-start
rlm@247 247 (+ item-list-start corrupted-items-width))
rlm@247 248 state)
rlm@247 249 ([] (print-listing-items @current-state)))
rlm@247 250
rlm@247 251 (defn print-listing-pc-items
rlm@247 252 ([^SaveState state]
rlm@247 253 (print-listing
rlm@247 254 state
rlm@247 255 pc-item-list-start
rlm@247 256 (+ pc-item-list-width pc-item-list-start))
rlm@247 257 state)
rlm@247 258 ([] (print-listing-pc-items @current-state)))
rlm@247 259
rlm@247 260
rlm@247 261