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version 1.21, 2005/04/05 20:37:07
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version 1.22, 2011/01/15 18:04:43
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Line 242 void sound_reset(void) {
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Line 242 void sound_reset(void) {
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| void sound_changeclock(void) { |
void sound_changeclock(void) { |
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| UINT32 clock; |
UINT32 clk; |
| UINT hz; |
UINT hz; |
| UINT hzmax; |
UINT hzmax; |
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Line 251 void sound_changeclock(void) {
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Line 251 void sound_changeclock(void) {
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| } |
} |
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| // とりあえず 25で割り切れる。 |
// とりあえず 25で割り切れる。 |
| clock = pccore.realclock / 25; |
clk = pccore.realclock / 25; |
| hz = soundcfg.rate / 25; |
hz = soundcfg.rate / 25; |
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| // で、クロック数に合せて調整。(64bit演算しろよな的) |
// で、クロック数に合せて調整。(64bit演算しろよな的) |
| hzmax = (1 << (32 - 8)) / (clock >> 8); |
hzmax = (1 << (32 - 8)) / (clk >> 8); |
| while(hzmax < hz) { |
while(hzmax < hz) { |
| clock = (clock + 1) >> 1; |
clk = (clk + 1) >> 1; |
| hz = (hz + 1) >> 1; |
hz = (hz + 1) >> 1; |
| } |
} |
| TRACEOUT(("hzbase/clockbase = %d/%d", hz, clock)); |
TRACEOUT(("hzbase/clockbase = %d/%d", hz, clk)); |
| soundcfg.hzbase = hz; |
soundcfg.hzbase = hz; |
| soundcfg.clockbase = clock; |
soundcfg.clockbase = clk; |
| soundcfg.minclock = 2 * clock / hz; |
soundcfg.minclock = 2 * clk / hz; |
| soundcfg.lastclock = CPU_CLOCK; |
soundcfg.lastclock = CPU_CLOCK; |
| } |
} |
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