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Changes of Srecko in the parts he coded

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1715
This commit is contained in:
Peter Veenstra 2004-03-11 20:35:25 +00:00
parent acc1373574
commit 1561e03647
2 changed files with 43 additions and 14 deletions
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14
src/hardware/sblaster.cpp
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@ -388,7 +388,7 @@ static void GenerateDMASound(Bitu size) {
sb.tmp.buf.m[read+1]=decode_ADPCM_3_sample((sb.dma.buf.b8[read*3/8]>>3)&7,sb.adpcm.reference,sb.adpcm.stepsize);
read+=2;
if (ad==2) {
sb.tmp.buf.m[read]=decode_ADPCM_3_sample(((sb.dma.buf.b8[(read-2)*3/8-1]>>6)&3)&(sb.dma.buf.b8[read*3/8]&1), sb.adpcm.reference,sb.adpcm.stepsize);
sb.tmp.buf.m[read]=decode_ADPCM_3_sample(((sb.dma.buf.b8[(read-2)*3/8-1]>>6)&3)&(sb.dma.buf.b8[(read-2)*3/8]&1), sb.adpcm.reference,sb.adpcm.stepsize);
sb.tmp.buf.m[read+1]=decode_ADPCM_3_sample((sb.dma.buf.b8[(read-2)*3/8]>>1)&7,sb.adpcm.reference,sb.adpcm.stepsize);
sb.tmp.buf.m[read+2]=decode_ADPCM_3_sample((sb.dma.buf.b8[(read-2)*3/8]>>4)&7,sb.adpcm.reference,sb.adpcm.stepsize);
read+=3;
@ -693,21 +693,21 @@ static void DSP_DoCommand(void) {
//TODO Maybe check limit for new irq?
sb.dma.total=1+sb.dsp.in.data[0]+(sb.dsp.in.data[1] << 8);
break;
case 0x75: /* 075h : Single Cycle 4-bit ADPCM Reference */
case 0x75: /* 075h : Single Cycle 4-bit ADPCM Reference */
sb.adpcm.reference=0x1000000;
case 0x74: /* 074h : Single Cycle 4-bit ADPCM */
case 0x74: /* 074h : Single Cycle 4-bit ADPCM */
sb.dma.total=1+sb.dsp.in.data[0]+(sb.dsp.in.data[1] << 8);
DSP_StartDMATranfser(DMA_4_SINGLE);
break;
case 0x77: /* 074h : Single Cycle 3-bit(2.6bit) ADPCM Reference*/
case 0x77: /* 077h : Single Cycle 3-bit(2.6bit) ADPCM Reference*/
sb.adpcm.reference=0x1000000;
case 0x76: /* 074h : Single Cycle 3-bit(2.6bit) ADPCM */
case 0x76: /* 076h : Single Cycle 3-bit(2.6bit) ADPCM */
sb.dma.total=1+sb.dsp.in.data[0]+(sb.dsp.in.data[1] << 8);
DSP_StartDMATranfser(DMA_3_SINGLE);
break;
case 0x17: /* 074h : Single Cycle 2-bit ADPCM Reference*/
case 0x17: /* 017h : Single Cycle 2-bit ADPCM Reference*/
sb.adpcm.reference=0x1000000;
case 0x16: /* 074h : Single Cycle 2-bit ADPCM */
case 0x16: /* 016h : Single Cycle 2-bit ADPCM */
sb.dma.total=1+sb.dsp.in.data[0]+(sb.dsp.in.data[1] << 8);
DSP_StartDMATranfser(DMA_2_SINGLE);
break;