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mcd, fix pcm looping (1st sample lost)

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kub 2021-10-31 22:47:49 +01:00
parent 7eeb85beb6
commit fe8611f9af
1 changed files with 3 additions and 2 deletions
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5
pico/cd/pcm.c
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@ -92,7 +92,7 @@ void pcd_pcm_sync(unsigned int to)
mul_l = (int)ch->regs[0] * (ch->regs[1] & 0xf); mul_l = (int)ch->regs[0] * (ch->regs[1] & 0xf);
mul_r = (int)ch->regs[0] * (ch->regs[1] >> 4); mul_r = (int)ch->regs[0] * (ch->regs[1] >> 4);
for (s = 0; s < steps; s++, addr = (addr + inc) & 0x07FFFFFF) for (s = 0; s < steps; s++)
{ {
smp = Pico_mcd->pcm_ram[addr >> PCM_STEP_SHIFT]; smp = Pico_mcd->pcm_ram[addr >> PCM_STEP_SHIFT];
@ -104,7 +104,8 @@ void pcd_pcm_sync(unsigned int to)
addr <<= PCM_STEP_SHIFT; addr <<= PCM_STEP_SHIFT;
if (smp == 0xff) if (smp == 0xff)
break; break;
} } else
addr = (addr + inc) & 0x07FFFFFF;
if (smp & 0x80) if (smp & 0x80)
smp = -(smp & 0x7f); smp = -(smp & 0x7f);