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Added the Zelda UCode preliminary synthesizer. It's far from perfect, but it sounds like the exact pitch it should synth. I'd be glad if someone finished it.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3630 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
XTra.KrazzY
2009-07-01 18:05:54 +00:00
parent 71556f77f6
commit 7d7e2ec8a8
5 changed files with 319 additions and 242 deletions
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62
docs/DSP/DSP_UC_Zelda.txt
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@ -2915,37 +2915,51 @@ void 08b2_Unk() {
08b2 1401 lsl $ACC0, #1 // t = PB.RatioFrac * 2
// Set up sound buffers
08b3 009b c000 lri $AX1.H, #0xc000 // a = 0xc000
08b5 0099 4000 lri $AX1.L, #0x4000 // b = 0x4000
//08b3 009b c000 lri $AX1.H, #0xc000
//08b5 0099 4000 lri $AX1.L, #0x4000
08b7 1150 08bf bloopi #0x50, 0x08bf
// for(int i = 0; i < 80; i++) {
08b9 02c0 0001 andcf $AC0.M, #0x0001
08bb 027c iflnz
08bc 1b1b srri @$AR0, $AX1.H
08bd 027d iflz
08be 1b19 srri @$AR0, $AX1.L
08bf 4800 addax $ACC0, $AX0.L
// }
08c0 147f lsr $ACC0, #-1
//08b7 1150 08bf bloopi #0x50, 0x08bf
for(int i = 0; i < 80; i++) {
//08b9 02c0 0001 andcf $AC0.M, #0x0001
//08bb 027c iflnz
// 08bc 1b1b srri @$AR0, $AX1.H
//08bd 027d iflz
// 08be 1b19 srri @$AR0, $AX1.L
if(($AC0.M & 1) == 1)
*$AR0++ = 0x4000;
else
*$AR0++ = 0xc000;
08bf 4800 addax $ACC0, $AX0.L // t += PB.RatioInt
}
08c0 147f lsr $ACC0, #-1 // t /= 2
08c1 02df ret
}
void 08c2_Unk() {
08c2 1402 lsl $ACC0, #2
08c3 8900 clr $ACC1
08c4 1fb8 mrr $AC1.L, $AX0.L
08c5 1501 lsl $ACC1, #1
08c2 1402 lsl $ACC0, #2 // t = PB.RatioFrac * 4
08c3 8900 clr $ACC1 // ACC1 = 0
08c4 1fb8 mrr $AC1.L, $AX0.L // AC1.L = PB.RatioInt
08c5 1501 lsl $ACC1, #1 // ACC1 *= 2
08c6 009b c000 lri $AX1.H, #0xc000
08c8 0099 4000 lri $AX1.L, #0x4000
08ca 1150 08d2 bloopi #0x50, 0x08d2
08cc 02c0 0003 andcf $AC0.M, #0x0003
08ce 027c iflnz
08cf 1b1b srri @$AR0, $AX1.H
08d0 027d iflz
08d1 1b19 srri @$AR0, $AX1.L
08d2 4c00 add $ACC0, $AC1.L
08d3 147e lsr $ACC0, #-2
//08ca 1150 08d2 bloopi #0x50, 0x08d2
for(int i = 0; i < 80; i++) {
//08cc 02c0 0003 andcf $AC0.M, #0x0003
//08ce 027c iflnz
// 08cf 1b1b srri @$AR0, $AX1.H
//08d0 027d iflz
// 08d1 1b19 srri @$AR0, $AX1.L
//08d2 4c00 add $ACC0, $AC1.L
if(($AC0.M & 3) == 3)
*$AR0++ = 0x4000;
else
*$AR0++ = 0xc000;
t += (PB.RatioInt * 2);
}
08d3 147e lsr $ACC0, #-2 // t /= 4
08d4 02df ret
}