Apple-2-SW/dos33fsprogs
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Update with reproducer

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This commit is contained in:
Vince Weaver 2018-06-13 23:11:51 -04:00
parent 13beae2b22
commit 8225da796b
2 changed files with 13 additions and 135 deletions
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chiptune_debug/chiptune_debug.dsk
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148
chiptune_debug/chiptune_tiny.s
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@ -6,7 +6,7 @@ MB_VALUE = $91
; left speaker
; left channel
MOCK_6522_1_ORB = $C400 ; 6522 #1 port b data
MOCK_6522_1_ORA = $C401 ; 6522 #1 port a data
MOCK_6522_1_DDRB = $C402 ; 6522 #1 data direction port B
@ -24,7 +24,7 @@ MOCK_6522_1_IFR = $C40D ; 6522 #1 Interrupt Flag Register
MOCK_6522_1_IER = $C40E ; 6522 #1 Interrupt Enable Register
MOCK_6522_1_ORAN = $C40F ; 6522 #1 port a data, no handshake
; right speaker
; right channel
MOCK_6522_2_ORB = $C480 ; 6522 #2 port b data
MOCK_6522_2_ORA = $C481 ; 6522 #2 port a data
MOCK_6522_2_DDRB = $C482 ; 6522 #2 data direction port B
@ -207,11 +207,6 @@ reset_ay_right:
write_ay_both:
write_ay_address:
; value
lda #$ff
sta MOCK_6522_1_DDRA
; address
stx MOCK_6522_1_ORA ; put address on PA1 ; 3
stx MOCK_6522_2_ORA ; put address on PA2 ; 3
@ -224,10 +219,6 @@ write_ay_address:
write_ay_value:
; value
lda #$ff
sta MOCK_6522_1_DDRA
lda MB_VALUE ; 3
sta MOCK_6522_1_ORA ; put value on PA1 ; 3
sta MOCK_6522_2_ORA ; put value on PA2 ; 3
@ -243,38 +234,6 @@ write_ay_value:
; 53
read_ay_both:
; value
lda #$ff
sta MOCK_6522_1_DDRA
; address
stx MOCK_6522_1_ORA ; put address on PA1 ; 3
lda #MOCK_AY_LATCH_ADDR ; latch_address on PB1 ; 2
sta MOCK_6522_1_ORB ; latch_address on PB1 ; 3
lda #MOCK_AY_INACTIVE ; go inactive ; 2
sta MOCK_6522_1_ORB ; 3
read_ay_value:
; value
lda #$0
sta MOCK_6522_1_DDRA
lda #MOCK_AY_READ ; ; 2
sta MOCK_6522_1_ORB ; read on PB1 ; 3
ldy MOCK_6522_1_ORA ; read value
lda #MOCK_AY_INACTIVE ; go inactive ; 2
sta MOCK_6522_1_ORB ; 3
tya
rts ; 6
;=======================================
; clear ay -- clear all 14 AY registers
@ -304,69 +263,6 @@ interrupt_handler:
pha ; save A ; 3
; Should we save X and Y too?
.if 0
lda MOCK_6522_1_IFR
tay
and #$f
clc
adc #'0'+$80
sta $401
tya
lsr
lsr
lsr
lsr
clc
adc #'0'+$80
sta $400
lda MOCK_6522_1_IER
tay
and #$f
clc
adc #'0'+$80
sta $403
tya
lsr
lsr
lsr
lsr
clc
adc #'0'+$80
sta $402
lda MOCK_6522_2_IFR
tay
and #$f
clc
adc #'0'+$80
sta $407
tya
lsr
lsr
lsr
lsr
clc
adc #'0'+$80
sta $406
lda MOCK_6522_2_IER
tay
and #$f
clc
adc #'0'+$80
sta $409
tya
lsr
lsr
lsr
lsr
clc
adc #'0'+$80
sta $408
.endif
bit MOCK_6522_1_T1C_L ; clear 6522 interrupt by
; reading T1C-L ; 4
@ -388,30 +284,19 @@ mb_write_frame:
; 4: C CHANNEL FINE
lda c_fine,Y
sta MB_VALUE
sta expected+4
ldx #4
jsr write_ay_both
; jsr write_ay_value
; read out all of AY registers and see if match expected
ldx #0
loop:
jsr read_ay_both
cmp expected,X
beq good
brk
good:
inx
cpx #14
bne loop
jsr write_ay_value
increment_offset:
inc MB_CHUNK_OFFSET ; increment offset
lda MB_CHUNK_OFFSET
and #$1
and #$1 ; reduce number played
; $f = 16
; $3 = 4
; $1 = 2
; $0 = 1
sta MB_CHUNK_OFFSET
done_interrupt:
@ -420,18 +305,11 @@ done_interrupt:
expected: ; 0 1 2 3 4 5 6 7 8 9 10 11 12 13
.byte $00,$00,$00,$00, $00,$00,$00,$38, $00,$00,$0c,$00, $00,$00
; 4: C fine
; 4: C fine frequency
c_fine:
;.byte $51,$3c,$32,$50, $3d,$32,$50,$3c, $33,$50,$3c,$32,$51,$3c,$32,$50
.byte $50,$32,$32,$50, $3d,$32,$50,$3c, $33,$50,$3c,$32,$51,$3c,$32,$50
.byte $51,$3c,$32,$50, $3d,$32,$50,$3c, $33,$50,$3c,$32,$51,$3c,$32,$50