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annotate clojure/com/aurellem/run/music.clj @ 435:3939ad680681

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workig on two voices using square wave generators.
author Robert McIntyre <rlm@mit.edu>
date Wed, 25 Apr 2012 12:35:53 -0500
parents 988f0fda6c93
children 3171cbe077f3
rev   line source
rlm@417 1 (ns com.aurellem.run.music
rlm@417 2 (:use (com.aurellem.gb saves gb-driver util constants
rlm@417 3 items vbm characters money
rlm@417 4 rlm-assembly))
rlm@417 5 (:use (com.aurellem.run util title save-corruption
rlm@417 6 bootstrap-0 bootstrap-1))
rlm@426 7 (:require clojure.string)
rlm@426 8 (:import [com.aurellem.gb.gb_driver SaveState])
rlm@426 9 (:import java.io.File))
rlm@417 10
rlm@427 11 (def third-kind
rlm@427 12 (File. "/home/r/proj/midi/third-kind.mid"))
rlm@417 13
rlm@427 14 (defn raw-midi-text [#^File midi-file]
rlm@427 15 (:out
rlm@427 16 (clojure.java.shell/sh
rlm@427 17 "midicsv"
rlm@427 18 (.getCanonicalPath midi-file)
rlm@427 19 "-")))
rlm@427 20
rlm@427 21 (def command-line #"^(\d+), (\d+), ([^,]+)(.*)$")
rlm@427 22
rlm@427 23 (defmulti parse-command :command)
rlm@427 24
rlm@427 25 (defn discard-args [command] (dissoc command :args))
rlm@427 26
rlm@427 27 (defmethod parse-command :Start_track
rlm@427 28 [command] (discard-args command))
rlm@427 29
rlm@427 30 (defmethod parse-command :End_track
rlm@427 31 [command] (discard-args command))
rlm@427 32
rlm@427 33 (defmethod parse-command :default
rlm@427 34 [command] command)
rlm@427 35
rlm@427 36 (defn parse-number-list
rlm@427 37 [number-list-str]
rlm@427 38 (map #(Integer/parseInt %)
rlm@427 39 (clojure.string/split number-list-str #", ")))
rlm@427 40
rlm@427 41 (defmethod parse-command :Tempo
rlm@427 42 [command]
rlm@427 43 (update-in command [:args] #(Integer/parseInt %)))
rlm@427 44
rlm@427 45 (defn parse-midi-note-list
rlm@427 46 [midi-note-list-str]
rlm@427 47 (let [[channel note velocity]
rlm@427 48 (parse-number-list midi-note-list-str)]
rlm@427 49 {:channel channel :note note :velocity velocity}))
rlm@427 50
rlm@427 51 (defmethod parse-command :Note_on_c
rlm@427 52 [command]
rlm@427 53 (update-in command [:args] parse-midi-note-list))
rlm@427 54
rlm@427 55 (defmethod parse-command :Note_off_c
rlm@427 56 [command]
rlm@427 57 (update-in command [:args] parse-midi-note-list))
rlm@427 58
rlm@427 59 (defmethod parse-command :Header
rlm@427 60 [command]
rlm@427 61 (let [args (:args command)
rlm@427 62 [format num-tracks division] (parse-number-list args)]
rlm@427 63 (assoc command :args
rlm@427 64 {:format format
rlm@427 65 :num-tracks num-tracks
rlm@427 66 :division division})))
rlm@427 67
rlm@427 68 (defmethod parse-command :Program_c
rlm@427 69 [command]
rlm@427 70 (let [args (:args command)
rlm@427 71 [channel program-num] (parse-number-list args)]
rlm@427 72 (assoc command :args
rlm@427 73 {:channel channel
rlm@427 74 :program-num program-num})))
rlm@427 75
rlm@427 76 (defn parse-midi [#^File midi-file]
rlm@427 77 (map
rlm@427 78 (comp parse-command
rlm@427 79 (fn [line]
rlm@427 80 (let [[[_ channel time command args]]
rlm@427 81 (re-seq command-line line)]
rlm@427 82 {:channel (Integer/parseInt channel)
rlm@427 83 :time (Integer/parseInt time)
rlm@427 84 :command (keyword command)
rlm@427 85 :args (apply str (drop 2 args))})))
rlm@427 86 (drop-last
rlm@427 87 (clojure.string/split-lines
rlm@427 88 (raw-midi-text midi-file)))))
rlm@427 89
rlm@417 90 (def music-base new-kernel)
rlm@417 91
rlm@417 92 (defn store [n address]
rlm@417 93 (flatten
rlm@417 94 [0xF5
rlm@417 95 0xE5
rlm@417 96
rlm@417 97 0x3E
rlm@417 98 n
rlm@417 99
rlm@417 100 0x21
rlm@417 101 (reverse (disect-bytes-2 address))
rlm@417 102
rlm@417 103 0x77
rlm@417 104
rlm@417 105 0xE1
rlm@417 106 0xF1]))
rlm@417 107
rlm@417 108 (defn infinite-loop []
rlm@417 109 [0x18 0xFE])
rlm@417 110
rlm@417 111 (def divider-register 0xFF04)
rlm@417 112
rlm@417 113 (defrecord Bit-Note [frequency volume duration duty])
rlm@417 114
rlm@417 115 (defn clear-music-registers []
rlm@417 116 (flatten
rlm@433 117 [(store (Integer/parseInt "00000000" 2) 0xFF10) ;; sweep
rlm@433 118 (store (Integer/parseInt "00000000" 2) 0xFF11) ;; pattern duty
rlm@433 119 (store (Integer/parseInt "00000000" 2) 0xFF12) ;; volume
rlm@433 120 (store (Integer/parseInt "00000000" 2) 0xFF13) ;; frequency-low
rlm@433 121 (store (Integer/parseInt "00000000" 2) 0xFF14) ;; frequency-high
rlm@417 122
rlm@417 123 (store (Integer/parseInt "00000000" 2) 0xFF16) ;; pattern duty 000000
rlm@417 124 (store (Integer/parseInt "00000000" 2) 0xFF17) ;; volume 0000
rlm@417 125 (store (Integer/parseInt "00000000" 2) 0xFF18) ;; frequency-low
rlm@417 126 (store (Integer/parseInt "00000000" 2) 0xFF19) ;; 00000 frequency-high
rlm@417 127
rlm@417 128 (store (Integer/parseInt "00000000" 2) 0xFF1A)
rlm@417 129 (store (Integer/parseInt "00000000" 2) 0xFF1B)
rlm@417 130 (store (Integer/parseInt "00000000" 2) 0xFF1C)
rlm@417 131 (store (Integer/parseInt "00000000" 2) 0xFF1D)
rlm@417 132 (store (Integer/parseInt "00000000" 2) 0xFF1E)
rlm@417 133
rlm@433 134 (store (Integer/parseInt "00000000" 2) 0xFF20) ;; length
rlm@433 135 (store (Integer/parseInt "00000000" 2) 0xFF21) ;; volume
rlm@433 136 (store (Integer/parseInt "00000000" 2) 0xFF22) ;; noise-frequency
rlm@433 137 (store (Integer/parseInt "00000000" 2) 0xFF23) ;; control
rlm@433 138 ]))
rlm@417 139
rlm@424 140
rlm@424 141 ;; mini-midi syntax
rlm@424 142
rlm@424 143 ;; codes
rlm@424 144 ;; note-code == 0x00
rlm@424 145 ;; change-duty-code = 0x01
rlm@424 146 ;; silence-code = 0x02
rlm@424 147
rlm@424 148 ;; silence format
rlm@424 149 ;; 2 bytes
rlm@424 150 ;; [silence-code (0x02)]
rlm@424 151 ;; [duration-8-bits]
rlm@424 152
rlm@424 153 ;; note data format
rlm@424 154 ;; 4 bytes
rlm@424 155 ;; [note-code (0x00)]
rlm@424 156 ;; [volume-4-bits 0 frequency-high-3-bits]
rlm@424 157 ;; [frequengy-low-8-bits]
rlm@424 158 ;; [duration-8-bits]
rlm@424 159
rlm@424 160 ;; change-duty-format
rlm@424 161 ;; 2 bytes
rlm@424 162 ;; [change-duty-code (0x01)]
rlm@424 163 ;; [new-duty]
rlm@424 164
rlm@425 165 (def note-code 0x00)
rlm@425 166 (def change-duty-code 0x01)
rlm@425 167 (def silence-code 0x02)
rlm@425 168
rlm@424 169 (defn do-message
rlm@424 170 "Read the message which starts at the current value of HL and do
rlm@424 171 what it says. Duration is left in A, and HL is advanced
rlm@424 172 appropraitely."
rlm@433 173 ([] (do-message 0x16))
rlm@433 174 ([sound-base-address]
rlm@433 175 (let [switch
rlm@433 176 [0x2A ;; load message code into A, increment HL
rlm@433 177
rlm@433 178 ;; switch on message
rlm@433 179 0xFE
rlm@433 180 note-code
rlm@433 181
rlm@433 182 0x20
rlm@433 183 :note-length]
rlm@424 184
rlm@433 185 play-note
rlm@433 186 [0x2A ;; load volume/frequency-high info
rlm@433 187 0xF5 ;; push A
rlm@433 188 0xE6
rlm@433 189 (Integer/parseInt "11110000" 2) ;; volume mask
rlm@433 190 0xE0
rlm@433 191 (inc sound-base-address) ;;0x17 ;; set volume
rlm@433 192 0xF1 ;; pop A
rlm@433 193 0xE6
rlm@433 194 (Integer/parseInt "00000111" 2) ;; frequency-high mask
rlm@433 195 0xE0
rlm@433 196 (+ 3 sound-base-address) ;;0x19 ;; set frequency-high
rlm@433 197
rlm@433 198 0x2A ;; load frequency low-bits
rlm@433 199 0xE0
rlm@433 200 (+ 2 sound-base-address) ;;0x18 ;; set frequency-low-bits
rlm@433 201 0x2A]] ;; load duration
rlm@433 202 (replace
rlm@433 203 {:note-length (count play-note)}
rlm@433 204 (concat switch play-note)))))
rlm@424 205
rlm@433 206 ;; (defn play-note
rlm@433 207 ;; "Play the note referenced by HL in the appropiate channel.
rlm@433 208 ;; Leaves desired-duration in A."
rlm@433 209
rlm@433 210 ;; [0x2A ;; load volume/frequency-high info
rlm@433 211 ;; 0xF5 ;; push A
rlm@433 212 ;; 0xE6
rlm@433 213 ;; (Integer/parseInt "11110000" 2) ;; volume mask
rlm@433 214 ;; 0xE0
rlm@433 215 ;; 0x17 ;; set volume
rlm@433 216 ;; 0xF1 ;; pop A
rlm@433 217 ;; 0xE6
rlm@433 218 ;; (Integer/parseInt "00000111" 2) ;; frequency-high mask
rlm@433 219 ;; 0xE0
rlm@433 220 ;; 0x19 ;; set frequency-high
rlm@417 221
rlm@433 222 ;; 0x2A ;; load frequency low-bits
rlm@433 223 ;; 0xE0
rlm@433 224 ;; 0x18 ;; set frequency-low-bits
rlm@417 225
rlm@433 226 ;; 0x2A ;; load duration
rlm@433 227 ;; ])
rlm@417 228
rlm@435 229 (def storage-start 0xC999)
rlm@435 230
rlm@434 231 (defn music-step [sound-base-address]
rlm@432 232 ;; C == current-ticks
rlm@432 233 ;; A == desired-ticks
rlm@435 234
rlm@435 235 (flatten
rlm@435 236 [;; restore variables from stack
rlm@435 237 0xE1 ;; pop HL
rlm@435 238 0xC1 ;; pop CB
rlm@435 239 0xF1 ;; pop AF
rlm@432 240
rlm@435 241
rlm@435 242 0xF5 ;; push A
rlm@417 243 0xF0
rlm@432 244 0x05 ;; load current ticks from 0xF005
rlm@431 245 0xB8 ;;
rlm@417 246 0x30 ;; increment C only if last result caused carry
rlm@417 247 0x01
rlm@418 248 0x0C
rlm@417 249
rlm@417 250 0x47 ;; update sub-ticks (A->B)
rlm@417 251
rlm@417 252 0xF1 ;; pop AF, now A contains desired-ticks
rlm@417 253
rlm@417 254 0xB9 ;; compare with current ticks
rlm@417 255
rlm@417 256 ;; if desired-ticks = current ticks
rlm@417 257 ;; go to next note ; set current set ticks to 0.
rlm@417 258
rlm@417 259 0x20
rlm@434 260 (+ (count (do-message 0)) 2)
rlm@417 261
rlm@434 262 (do-message sound-base-address)
rlm@417 263
rlm@417 264 0x0E
rlm@435 265 0x00 ;; 0->C (current-ticks)
rlm@417 266
rlm@435 267 ;; save variables to stack
rlm@435 268 0xF5 ;; push AF
rlm@435 269 0xC5 ;; push CB
rlm@435 270 0xE5 ;; push HL
rlm@435 271
rlm@435 272
rlm@435 273 ]))
rlm@435 274
rlm@435 275 (def music-1 0x11)
rlm@434 276 (def music-2 0x16)
rlm@434 277
rlm@417 278 (defn music-kernel []
rlm@417 279 (flatten
rlm@432 280 [;; global initilization section
rlm@432 281 (clear-music-registers)
rlm@432 282
rlm@417 283 0x3E
rlm@418 284 0x01
rlm@417 285 0xE0
rlm@417 286 0x06 ;; set TMA to 0
rlm@417 287
rlm@417 288 0x3E
rlm@423 289 (Integer/parseInt "00000110" 2)
rlm@417 290 0xE0
rlm@423 291 0x07 ;; set TAC to 65536 Hz and activate timer
rlm@417 292
rlm@435 293 ;; initialize frame 1
rlm@432 294 0x21
rlm@432 295 0x00
rlm@432 296 0xD0 ;; set HL to 0xD000 == music-start
rlm@432 297 0x0E
rlm@432 298 0x00 ;; 0->C
rlm@432 299 0x06
rlm@432 300 0x00 ;; 0->B
rlm@435 301
rlm@433 302 0xAF ;; 0->A
rlm@432 303
rlm@435 304 0xF5 ;; push AF
rlm@435 305 0xC5 ;; push CB
rlm@435 306 0xE5 ;; push HL
rlm@432 307
rlm@435 308 ;; initialize frame 2
rlm@435 309
rlm@435 310
rlm@435 311 ;; init-2 (0->A,B,C), 0xC000 -> HL
rlm@435 312
rlm@435 313 ;; push to stack
rlm@435 314
rlm@435 315 ;; SP - 5
rlm@435 316 ;; pop from stack
rlm@435 317 (music-step music-1)
rlm@435 318 ;; save to stack
rlm@433 319
rlm@424 320
rlm@435 321 ;; SP + 5
rlm@435 322 ;; pop from stack
rlm@435 323 ;;(music-step music-2)
rlm@435 324 ;; save to stack
rlm@435 325
rlm@417 326 0x18
rlm@434 327 (->signed-8-bit (+ (- (count (music-step 0)))
rlm@417 328 -2))]))
rlm@417 329
rlm@424 330 (defn frequency-code->frequency
rlm@424 331 [code]
rlm@424 332 (assert (<= 0 code 2047))
rlm@424 333 (/ 131072 (- 2048 code)))
rlm@424 334
rlm@424 335 (defn clamp [x low high]
rlm@424 336 (cond (> x high) high
rlm@424 337 (< x low) low
rlm@424 338 true x))
rlm@424 339
rlm@424 340 (defn frequency->frequency-code
rlm@424 341 [frequency]
rlm@424 342 (clamp
rlm@424 343 (Math/round
rlm@424 344 (float
rlm@424 345 (/ (- (* 2048 frequency) 131072) frequency)))
rlm@424 346 0x00 2048))
rlm@424 347
rlm@424 348 (defn note-codes [frequency volume duration]
rlm@424 349 (assert (<= 0 volume 0xF))
rlm@430 350 (if (<= duration 0xFF)
rlm@430 351 (let [frequency-code
rlm@430 352 (frequency->frequency-code frequency)
rlm@430 353 volume&high-frequency
rlm@430 354 (+ (bit-shift-left volume 4)
rlm@430 355 (bit-shift-right frequency-code 8))
rlm@430 356 low-frequency
rlm@430 357 (bit-and 0xFF frequency-code)]
rlm@430 358 [note-code
rlm@430 359 volume&high-frequency
rlm@430 360 low-frequency
rlm@430 361 duration])
rlm@430 362 (vec
rlm@430 363 (flatten
rlm@430 364 [(note-codes frequency volume 0xFF)
rlm@430 365 (note-codes frequency volume (- duration 0xFF))]))))
rlm@430 366
rlm@424 367
rlm@427 368 (defn midi-code->frequency
rlm@427 369 [midi-code]
rlm@427 370 (* 8.1757989156
rlm@427 371 (Math/pow 2 (* (float (/ 12)) midi-code))))
rlm@427 372
rlm@427 373 ;; division == clock-pulses / quarter-note
rlm@427 374 ;; tempo == microseconds / quarter-note
rlm@427 375
rlm@427 376 ;; have: clock-pulses
rlm@427 377 ;; want: seconds
rlm@427 378
rlm@427 379
rlm@428 380 (defn silence [length]
rlm@428 381 {:frequency 1
rlm@428 382 :duration length
rlm@428 383 :volume 0})
rlm@427 384
rlm@427 385 (defn midi->mini-midi [#^File midi-file]
rlm@427 386 (let [midi-events (parse-midi midi-file)
rlm@427 387
rlm@427 388 note-on-events
rlm@427 389 (filter #(= :Note_on_c (:command %)) midi-events)
rlm@427 390 note-off-events
rlm@427 391 (filter #(= :Note_off_c (:command %)) midi-events)
rlm@427 392
rlm@427 393 channel-1-on
rlm@427 394 (sort-by :time
rlm@427 395 (filter #(= 1 (:channel (:args %)))
rlm@427 396 note-on-events))
rlm@427 397 channel-1-off
rlm@427 398 (sort-by :time
rlm@427 399 (filter #(= 1 (:channel (:args %)))
rlm@427 400 note-off-events))
rlm@427 401
rlm@427 402
rlm@427 403 tempo (:args (first (filter #(= :Tempo (:command %)) midi-events)))
rlm@427 404 division (:division
rlm@427 405 (:args (first (filter #(= :Header (:command %)) midi-events))))
rlm@428 406
rlm@428 407 notes
rlm@428 408 (map
rlm@428 409 (fn [note-on note-off]
rlm@428 410 {:frequency (midi-code->frequency (:note (:args note-on)))
rlm@428 411 :duration
rlm@428 412 (/ (* (/ tempo division)
rlm@428 413 (- (:time note-off) (:time note-on)))
rlm@428 414 1e6) ;; convert clock-pulses into seconds
rlm@428 415 :volume (int (/ (:velocity (:args note-on)) 10))
rlm@428 416 :time-stamp (/ (* (/ tempo division)
rlm@428 417 (:time note-on)) 1e6)})
rlm@428 418 channel-1-on channel-1-off)
rlm@428 419
rlm@428 420 silences
rlm@428 421 (map (fn [note-1 note-2]
rlm@428 422 (let [note-1-space (- (:time-stamp note-2)
rlm@428 423 (:time-stamp note-1))
rlm@428 424 note-1-length (:duration note-1)]
rlm@428 425 (silence (- note-1-space note-1-length))))
rlm@428 426 ;; to handle silence at the beginning.
rlm@428 427 (concat [(assoc (silence 0)
rlm@428 428 :time-stamp 0)] notes)
rlm@428 429 notes)
rlm@428 430
rlm@428 431 notes-with-silence
rlm@428 432 (filter (comp not zero? :duration) (interleave silences notes))
rlm@427 433 ]
rlm@428 434
rlm@427 435 (map
rlm@427 436 (fn [note-event]
rlm@427 437 (note-codes (:frequency note-event)
rlm@427 438 (:volume note-event)
rlm@427 439 (int (* (:duration note-event) 0x100))))
rlm@428 440 notes-with-silence)))
rlm@428 441
rlm@428 442
rlm@424 443 (def C4 (partial note-codes 261.63))
rlm@424 444 (def D4 (partial note-codes 293.66))
rlm@424 445 (def E4 (partial note-codes 329.63))
rlm@424 446 (def F4 (partial note-codes 349.23))
rlm@424 447 (def G4 (partial note-codes 392))
rlm@424 448 (def A4 (partial note-codes 440))
rlm@424 449 (def B4 (partial note-codes 493.88))
rlm@424 450 (def C5 (partial note-codes 523.3))
rlm@424 451
rlm@430 452 (def scale
rlm@430 453 (flatten
rlm@430 454 [(C4 0xF 0x40)
rlm@430 455 (D4 0xF 0x40)
rlm@430 456 (E4 0xF 0x40)
rlm@430 457 (F4 0xF 0x40)
rlm@430 458 (G4 0xF 0x40)
rlm@430 459 (A4 0xF 0x40)
rlm@430 460 (B4 0xF 0x40)
rlm@430 461 (C5 0xF 0x40)]))
rlm@424 462
rlm@418 463 (defn play-music [music-bytes]
rlm@417 464 (let [program-target 0xC000
rlm@417 465 music-target 0xD000]
rlm@417 466 (-> (set-memory-range (second (music-base))
rlm@417 467 program-target (music-kernel))
rlm@417 468 (set-memory-range music-target music-bytes)
rlm@417 469 (PC! program-target))))
rlm@417 470
rlm@417 471
rlm@417 472 (defn test-note [music-bytes]
rlm@417 473 (-> (set-memory-range (second (music-base))
rlm@417 474 0xC000 (concat (clear-music-registers)
rlm@417 475 (play-note)
rlm@417 476 (infinite-loop)))
rlm@417 477 (set-memory-range 0xD000 music-bytes)
rlm@417 478 (PC! 0xC000)
rlm@417 479 (HL! 0xD000)
rlm@417 480 ))
rlm@417 481
rlm@417 482
rlm@417 483 (defn run-program
rlm@418 484 ([program]
rlm@417 485 (let [target 0xC000]
rlm@417 486 (-> (set-memory-range (second (music-base))
rlm@417 487 target program)
rlm@417 488 (PC! target)))))
rlm@417 489
rlm@424 490 (defn test-timer []
rlm@424 491 (flatten
rlm@424 492 [0x3E
rlm@424 493 0x01
rlm@424 494 0xE0
rlm@424 495 0x06 ;; set TMA to 0
rlm@424 496
rlm@424 497 0x3E
rlm@424 498 (Integer/parseInt "00000100" 2)
rlm@424 499 0xE0
rlm@424 500 0x07 ;; set TAC to 16384 Hz and activate timer
rlm@424 501
rlm@424 502 (repeat
rlm@424 503 500
rlm@424 504 [0xF0
rlm@424 505 0x05])]))
rlm@426 506
rlm@426 507