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Digitalker mode 2 fix

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This commit is contained in:
Olivier Galibert 2009-06-01 22:14:12 +00:00
parent 3ce62e7831
commit d5b9e079e5
1 changed files with 6 additions and 3 deletions
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9
src/emu/sound/digitalk.c
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@ -418,8 +418,9 @@ static void digitalker_step_mode_2(digitalker *dg)
digitalker_write(dg, &wpos, vol, dac);
for(k=7; k >= 0; k--) {
int limit = k ? 0 : 1;
bits = (bits << 8) | (k ? dg->rom[dg->apos+k] : 0x80);
for(l=3; l>=0; l--) {
for(l=3; l>=limit; l--) {
dac -= delta1[(bits >> (6+2*l)) & 15];
digitalker_write(dg, &wpos, vol, dac);
}
@ -428,8 +429,9 @@ static void digitalker_step_mode_2(digitalker *dg)
digitalker_write(dg, &wpos, vol, dac);
for(k=1; k != 9; k++) {
int start = k == 1 ? 1 : 0;
bits |= dg->rom[dg->apos+k] << 8;
for(l=0; l<4; l++) {
for(l=start; l<4; l++) {
dac += delta1[(bits >> (6+2*l)) & 15];
digitalker_write(dg, &wpos, vol, dac);
}
@ -439,8 +441,9 @@ static void digitalker_step_mode_2(digitalker *dg)
digitalker_write(dg, &wpos, vol, dac);
for(k=7; k >= 0; k--) {
int limit = k ? 0 : 1;
bits = (bits << 8) | (k ? dg->rom[dg->apos+k] : 0x80);
for(l=3; l>=0; l--) {
for(l=3; l>=limit; l--) {
dac -= delta1[(bits >> (6+2*l)) & 15];
digitalker_write(dg, &wpos, vol, dac);
}