Re: Ripping sound routines?

[Toinet <antoine.vignau@laposte.net>]

7F67 is your friend and the sound entry point routine.

Now, it is your turn to work...

antoine


* 32E..32F is a pointer to the sounds table
* 3AC is the machine ID (#$84 means IIgs)
* 3CF is the sound flag (0 means no sound, 1 sound)

00/7F67: AD E6 7F     LDA
7FE6
00/7F6A: AC CF 03     LDY
03CF
00/7F6D: D0 01        BNE 7F70
{+01}
00/7F6F: 60
RTS

00/7F70: AC AC 03     LDY
03AC
00/7F73: AA
TAX
00/7F74: C0 84        CPY
#84
00/7F76: D0 09        BNE 7F81
{+09}
00/7F78: AD 36 C0     LDA
C036
00/7F7B: 48
PHA
00/7F7C: 29 7F        AND
#7F
00/7F7E: 8D 36 C0     STA
C036

00/7F81: 8A
TXA
00/7F82: 0A
ASL
00/7F83: A8
TAY
00/7F84: AD 2E 03     LDA
032E
00/7F87: 85 42        STA
42
00/7F89: AD 2F 03     LDA 032E
+1
00/7F8C: 85 43        STA
42+1
00/7F8E: B1 42        LDA
(42),Y
00/7F90: 18
CLC
00/7F91: 65 42        ADC
42
00/7F93: 85 3E        STA
3E
00/7F95: C8
INY
00/7F96: B1 42        LDA
(42),Y
00/7F98: 65 43        ADC
42+1
00/7F9A: 85 3F        STA 3E
+1

00/7F9C: A0 00        LDY
#00
00/7F9E: B1 3E        LDA
(3E),Y
00/7FA0: 85 95        STA
95
00/7FA2: C8
INY
00/7FA3: B1 3E        LDA
(3E),Y
00/7FA5: 85 93        STA
93
00/7FA7: A9 02        LDA
#02
00/7FA9: 18
CLC
00/7FAA: 4C B2 7F     JMP
7FB2

00/7FAD: A5 93        LDA
93
00/7FAF: 18
CLC
00/7FB0: 69 01        ADC
#01

00/7FB2: 65 3E        ADC
3E
00/7FB4: 85 3E        STA
3E
00/7FB6: 90 02        BCC 7FBA
{+02}
00/7FB8: E6 3F        INC 3E
+1

00/7FBA: A0 00        LDY
#00
00/7FBC: B1 3E        LDA
(3E),Y
00/7FBE: 85 96        STA
96
00/7FC0: A0 00        LDY
#00
00/7FC2: C8
INY
00/7FC3: B1 3E        LDA
(3E),Y
00/7FC5: 85 97        STA
97
00/7FC7: 2C 30 C0     BIT
C030
00/7FCA: C6 97        DEC
97
00/7FCC: D0 FC        BNE 7FCA
{-04}
00/7FCE: C4 93        CPY
93
00/7FD0: D0 F0        BNE 7FC2
{-10}
00/7FD2: C6 96        DEC
96
00/7FD4: D0 EA        BNE 7FC0
{-16}
00/7FD6: C6 95        DEC
95
00/7FD8: D0 D3        BNE 7FAD
{-2D}

00/7FDA: AD AC 03     LDA
03AC
00/7FDD: C9 84        CMP
#84
00/7FDF: D0 04        BNE 7FE5
{+04}
00/7FE1: 68
PLA
00/7FE2: 8D 36 C0     STA
C036
00/7FE5: 60           RTS

00/7FE6: 00 00        BRK
00

*

00/032E:15 AE-..
00/03AC:84-.
00/03CF:01-.

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