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Sound cpu (mcu) has an internal clock divider of 4. This fixes the sound for Dragon Buster.

This commit is contained in:
iq_132 2014-06-14 18:56:31 +00:00
parent 02a17313ec
commit 2e0c1878b5
1 changed files with 7 additions and 6 deletions
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13
src/burn/drv/pre90s/d_skykid.cpp
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@ -261,13 +261,14 @@ STDDIPINFO(Drgnbstr)
static inline void sync_HD63701(INT32 run)
{
INT32 nNext = (INT32)((float)((102400.000 * nM6809CyclesTotal) / 25600));
INT32 nNext = nM6809CyclesTotal - nCyclesDone[1];
if (nNext > 0) {
if (nNext > 0)
{
if (run) {
nCyclesDone[1] += HD63701Run(nNext - nCyclesDone[1]);
nCyclesDone[1] += HD63701Run(nNext);
} else {
nCyclesDone[1] += nNext - nCyclesDone[1];
nCyclesDone[1] += nNext;
}
}
}
@ -809,9 +810,9 @@ static INT32 DrvFrame()
M6809NewFrame();
HD63701NewFrame();
INT32 nInterleave = 100;
INT32 nInterleave = 10;
INT32 nSoundBufferPos = 0;
INT32 nCyclesTotal[2] = { 1536000 / 60, 6144000 / 60 };
INT32 nCyclesTotal[2] = { 1536000 / 60, 1536000 / 60 };
nCyclesDone[0] = nCyclesDone[1] = 0;
for (INT32 i = 0; i < nInterleave; i++)