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megamusic: more language card support

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This commit is contained in:
Vince Weaver 2018-10-28 00:18:00 -04:00
parent 3c3c1664b6
commit 236736decd
4 changed files with 102 additions and 20 deletions
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2
megamusic/Makefile
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@ -10,7 +10,7 @@ all: megamusic.dsk
megamusic.dsk: MEGAMUSIC MEGALOAD HALFMUSIC MUSIC.D000X2 MUSIC.D000 MUSIC.1000
$(DOS33) -y megamusic.dsk BSAVE -a 0x1000 MUSIC.1000
$(DOS33) -y megamusic.dsk BSAVE -a 0x4000 MUSIC.D000
$(DOS33) -y megamusic.dsk BSAVE -a 0xD000 MUSIC.D000X2
$(DOS33) -y megamusic.dsk BSAVE -a 0x4000 MUSIC.D000X2
$(DOS33) -y megamusic.dsk BSAVE -a 0x4000 MEGAMUSIC
$(DOS33) -y megamusic.dsk BSAVE -a 0x4000 HALFMUSIC
$(DOS33) -y megamusic.dsk BSAVE -a 0x800 MEGALOAD

15
megamusic/falling_apple.s
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@ -150,21 +150,20 @@ page1_loop: ; delay 115+(7 loop)+4 (bit)+4(extra)
; -1 (+1-2) from above
; -25 inc framecount
; -7 see if timeout
;-1023 play_music
;-1031 play_music
; -10 keypress
;================
; 3484
; 3476
jsr play_music ; 6+1017
jsr play_music ; 6+1025
; Try X=29 Y=23 cycles=3474 R2
; Try X=231 Y=3 cycles=3484
nop
ldy #3 ; 2
faloop1:ldx #231 ; 2
ldy #23 ; 2
faloop1:ldx #29 ; 2
faloop2:dex ; 2
bne faloop2 ; 2nt/3
dey ; 2

95
megamusic/megaload.s
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@ -19,7 +19,8 @@
tmptrk = $fe ; temporary copy of current track
phase = $ff ; current phase for /seek
dirbuf = $1e00 ; note, don't put this immediately below
dirbuf = $2200
; $1e00 ; note, don't put this immediately below
; the value being read as destaddr-4
; is temporarily overwritten during read
; process
@ -31,6 +32,66 @@
start:
jsr init ; unhook DOS, init nibble table
; Language card! READ ROM, WRITE RAM, $D000 bank 1
lda $c089
lda $c089
; open and read a file
lda #<md000_filename
sta namlo
lda #>md000_filename
sta namhi
jsr opendir ; open and read entire file into memory
; copy 12k from $4000 to $d000
ldy #0
yloop:
ldx #0
xloop:
xloop_smc1:
lda $4000,X
xloop_smc2:
sta $D000,X
inx
bne xloop
iny
inc xloop_smc1+2
inc xloop_smc2+2
cpy #48
bne yloop
; open and read a file
lda #<md000x2_filename
sta namlo
lda #>md000x2_filename
sta namhi
jsr opendir ; open and read entire file into memory
; Language card! READ ROM, WRITE RAM, $D000 bank 2
lda $c081
lda $c081
; copy 4k from $4000 to $d000
ldy #0
yloop2:
ldx #0
xloop2:
xloop2_smc1:
lda $4000,X
xloop2_smc2:
sta $D000,X
inx
bne xloop2
iny
inc xloop2_smc1+2
inc xloop2_smc2+2
cpy #16
bne yloop2
; open and read a file
lda #<megademo_filename
sta namlo
@ -39,11 +100,15 @@ start:
jsr opendir ; open and read entire file into memory
; open and read a file
; lda #<half_filename
; sta namlo
; lda #>half_filename
; sta namhi
; jsr opendir ; open and read entire file into memory
lda #<m1000_filename
sta namlo
lda #>m1000_filename
sta namhi
jsr opendir ; open and read entire file into memory
jmp $4000 ; jump to entry point
@ -55,9 +120,21 @@ megademo_filename: ;.byte "MEGAMUSIC "
.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0
half_filename: ;.byte "HALFMUSIC "
.byte 'H'|$80,'A'|$80,'L'|$80,'F'|$80,'M'|$80,'U'|$80,'S'|$80,'I'|$80
.byte 'C'|$80,$A0,$A0,$A0,$A0,$A0,$A0,$A0
m1000_filename: ;.byte "MUSIC.1000 "
.byte 'M'|$80,'U'|$80,'S'|$80,'I'|$80,'C'|$80,'.'|$80,'1'|$80,'0'|$80
.byte '0'|$80,'0'|$80,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0
md000_filename: ;.byte "MUSIC.D000 "
.byte 'M'|$80,'U'|$80,'S'|$80,'I'|$80,'C'|$80,'.'|$80,'D'|$80,'0'|$80
.byte '0'|$80,'0'|$80,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0
md000x2_filename: ;.byte "MUSIC.D000X2 "
.byte 'M'|$80,'U'|$80,'S'|$80,'I'|$80,'C'|$80,'.'|$80,'D'|$80,'0'|$80
.byte '0'|$80,'0'|$80,'X'|$80,'2'|$80,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
.byte $A0,$A0,$A0,$A0,$A0,$A0

10
megamusic/music_1000.s
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@ -75,13 +75,16 @@ MB_FRAME = $94
MB_PATTERN = $95
; takes
; 4 +
; 3 + 79 +
; 80 + 82 + 88 +
; 80 + 82 + 88 +
; 80 + 82 + 88 +
; 80 + 80 +
; 21 = 1017
; 25 = 1025
play_music:
; turn on language card
lda $C088 ; 4
; self-modify the code
lda MB_PATTERN ; 3
@ -241,10 +244,13 @@ mb_no_change:
nop ; 2
mb_done_change:
; restore language card
lda $C08A ; 4
rts ; 6
;=======
; 21
; 25
.align $100
.include "mockingboard.s"
.align $100