rlm@170: (ns com.aurellem.exp.item-bridge
rlm@179:   (:use (com.aurellem.gb saves util constants gb-driver vbm items assembly))
rlm@170:   (:use (com.aurellem.run title save-corruption))
rlm@179:   ;;(:use (com.aurellem.exp pokemon))
rlm@154:   (:import [com.aurellem.gb.gb_driver SaveState]))
rlm@130: 
rlm@131: (defn corrupt-item-state []
rlm@131:   (second (destroy-item-end-of-list-marker)))
rlm@131: 
rlm@131: (defn corrupt-item-state []
rlm@131:   (read-state "corrupt-items"))
rlm@131: 
rlm@133: (defn view-memory-range [state start end]
rlm@133:   (dorun
rlm@133:    (map (fn [loc val]
rlm@133:           (println (format "%04X : %02X" loc val)))
rlm@133:         (range start end) (subvec (vec (memory state)) start end)))
rlm@133:   state)
rlm@131: 
rlm@133: (defn almost-broken
rlm@133:   "if one more memory location is turned into 0x03, the game crashes."
rlm@133:   [n]
rlm@133:   (view-memory-range
rlm@133:    (set-inv-mem (mid-game)
rlm@133:                 (concat [0xFF] (repeat 64 0x03)
rlm@133:                         (subvec (vec (memory (mid-game)))
rlm@133:                                 (+ item-list-start 65)
rlm@133:                                 (+ item-list-start 65 n))
rlm@170:                         (repeat (- 255 65 n) 0x03)))
rlm@133:    item-list-start (+ item-list-start 255)))
rlm@131: 
rlm@133: (defn actually-broken
rlm@170:   "if this memory location is turned into 0x03, the game crashes."
rlm@133:   []
rlm@133:   (set-memory (mid-game) 0xD35D 0x03))
rlm@131: 
rlm@131: 
rlm@133: ;; (almost-broken 20) more or less works
rlm@133: 
rlm@133: (defn capture-program-counter
rlm@133:   "records the program counter for each tick"
rlm@133:   [^SaveState state ticks]
rlm@133:   (let [i (atom 0)]
rlm@133:     (reduce (fn [[program-counters state] _]
rlm@133:               (println (swap! i inc))
rlm@133:                [(conj program-counters (PC state))
rlm@133:                 (tick state)])
rlm@133:               [[] state]
rlm@133:               (range ticks))))
rlm@133: 
rlm@133: 
rlm@133: (defn capture-program-counter
rlm@133:   [^SaveState state ticks]
rlm@176:   (tick state)
rlm@176:   
rlm@133:   (loop [i 0
rlm@133:          pcs []]
rlm@133:     (if (= i ticks)
rlm@179:       (filter (partial < 0x2000)(sort (set pcs)))
rlm@133:       (do 
rlm@133:         (com.aurellem.gb.Gb/tick)
rlm@133:         (recur (inc i)
rlm@133:                (conj pcs (first (registers))))))))
rlm@170: 
rlm@170: (defn loop-program []
rlm@174:   [0x00     ;0xD31D  ;; disable-interrupts
rlm@170: 
rlm@170:    0xC3     ;; loop forever
rlm@170:    0x1D
rlm@170:    0xD3])
rlm@170: 
rlm@170: (def map-function-address-start 0xD36D)
rlm@170: 
rlm@170: (defn test-loop []
rlm@174:   (continue!
rlm@170:    (-> (mid-game) 
rlm@170:        (set-memory-range 0xD31D (loop-program))
rlm@170:        (set-memory-range
rlm@170:         map-function-address-start
rlm@174:         [0xD3 0x1D]))))
rlm@174:        
rlm@174: 
rlm@170: 
rlm@170: 
rlm@170: (defn-memo corrupt-moves []
rlm@170:   (concat
rlm@170:    (first
rlm@170:     (->>
rlm@170:      [[] (mid-game)]
rlm@170:      (advance [:b] [:b :start])
rlm@170:      (advance [] [:d])
rlm@170:      (play-moves [[] [] [] [:d] [] [] [] [:d] [] [] [:a]])
rlm@170:      scroll-text
rlm@170:      (play-moves
rlm@170:       ;; this section is copied from speedrun-2942
rlm@170:       ;; and corrupts the save so that the end-of-list marker
rlm@170:       ;; for the pokemon roster is destroyed, but the save is still
rlm@170:       ;; playable.
rlm@170:       [[] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] []
rlm@170:        [] [] [] [] [] [] [] [] [] [] [:select] [:restart]])
rlm@170:      (play-moves
rlm@170:       (first (title)))
rlm@170:      (advance [] [:start])
rlm@170:      (advance [] [:a])
rlm@170:      (advance [:a] [:a :start])))
rlm@170:    [[]]))
rlm@170:   
rlm@170: 
rlm@170: 
rlm@170: (defn corrupt
rlm@170:   "enter the codes to destroy the
rlm@170:    pokemon list using save corruption"
rlm@170:   ([^SaveState state]
rlm@170:   (run-moves
rlm@170:    state
rlm@170:    (corrupt-moves)))
rlm@171:   ([] (corrupt @current-state)))
rlm@173: 
rlm@173: (defn mid-game-corrupt []
rlm@173:   (read-state "corrupt-mid-game"))
rlm@170: 
rlm@212: 
rlm@187:      
rlm@170: 
rlm@170: 
rlm@212: 
rlm@187: (defn test-memory-fun [n]
rlm@187:   (capture-program-counter
rlm@187:    (set-memory-range
rlm@187:     (tick (mid-game))
rlm@187:     0xD36D
rlm@187:     [0 0])
rlm@187:    n))
rlm@170: 
rlm@187: ;;(def good (test-memory-fun 17000))
rlm@187: 
rlm@187: ;;(def bad (test-memory-fun 18000))
rlm@187: 
rlm@187: 
rlm@212: 
rlm@212: (defn menu-open-state []
rlm@212:   (read-state "menu-open"))
rlm@212: 
rlm@212: (defn prepare-memory
rlm@212:   ([^SaveState state]
rlm@212:      (-> state
rlm@212:          (set-memory-range 0xD31D (loop-program))
rlm@212:          (set-memory-range 0xD36D [0x1D 0xD3])))
rlm@212:   ([] (prepare-memory @current-state)))
rlm@212: 
rlm@233: (def memory-function-address-start 0xD36D)
rlm@233: 
rlm@233: (defn read-map-function-address
rlm@233:   ([^SaveState state]
rlm@233:      (let [mem (memory state)]
rlm@233:        [(aget mem memory-function-address-start)
rlm@233:         (aget mem (inc memory-function-address-start))]))
rlm@233:   ([] (read-map-function-address @current-state)))
rlm@212: 
rlm@212: (defn succesful-PC-capture
rlm@212:   "This function demonstrates successful PC capturing by
rlm@212:    setting 0xD36D to the value of the start location of
rlm@212:    a specially prepared program.
rlm@212: 
rlm@212:    You must run the function and then exit the open menu
rlm@212:    to see the effect."
rlm@212:   []
rlm@212:   (dorun
rlm@212:    (map #(println (Integer/toHexString %))
rlm@212:         (capture-program-counter 
rlm@212:          (prepare-memory (menu-open-state))
rlm@212:          9000000))))
rlm@233: 
rlm@233: (defn trampoline-assembly [^SaveState state]
rlm@233:   (flatten
rlm@233:    [0x3E ;; 
rlm@233:     0x3E ;; load lemonade into A
rlm@233:     
rlm@233:     0xEA
rlm@233:     0x1D
rlm@233:     0xD3 ;; set first item to lemonade
rlm@233:     
rlm@233:     0xC3 ;; return control to the game via absolute junp.
rlm@233:     (read-map-function-address state)
rlm@233:     ]))
rlm@233: 
rlm@233: (defn test-trampoline
rlm@233:   "Demonstrates item-program execution via the map-function that
rlm@233:    returns control to the main pokemon game after one loop."
rlm@233:   []
rlm@233:   (let [insertion-address 0xD33D
rlm@233:         insertion-address-bits [0x3D 0xD3]]
rlm@233:   (->
rlm@233:    (menu-open-state)
rlm@233:    (set-memory-range
rlm@233:     insertion-address
rlm@233:     (trampoline-assembly (menu-open-state)))
rlm@233:    (set-memory-range 
rlm@233:     memory-function-address-start
rlm@233:     insertion-address-bits))))