PVB/shrooms-vb-core
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This commit is contained in:
GuyPerfect
2025-08-17 13:11:29 -05:00
parent 67928da1e6
commit f295e02aaf
1 changed files with 18 additions and 10 deletions
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core/vsu.c
+18 -10
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@@ -134,17 +134,17 @@ static void vsuEmulateChannel(VB *sim, Channel *chan) {
/* Envelope modification */ /* Envelope modification */
if (chan->env.clocks == 0) { if (chan->env.clocks == 0) {
uint8_t new_envelope = chan->env.value; uint8_t new_envelope = chan->env.value;
if (chan->env.dir == 0 && chan->env.value != 0) { if (chan->env.dir == 0 && chan->env.value != 0)
new_envelope--; new_envelope--;
} else if (chan->env.dir == 1 && chan->env.value != 15) { else if (chan->env.dir == 1 && chan->env.value != 15)
new_envelope++; new_envelope++;
} else if (chan->env.rep && chan->env.modmask != 2) { else if (chan->env.rep && chan->env.modmask != 2) {
new_envelope = chan->env.reload; new_envelope = chan->env.reload;
chan->env.modmask = 0; chan->env.modmask = 0;
} else if (!chan->env.modmask) chan->env.modmask = 1; } else if (!chan->env.modmask)
if (chan->env.enb && !chan->env.modmask) { chan->env.modmask = 1;
if (chan->env.enb && !chan->env.modmask)
chan->env.value = new_envelope; chan->env.value = new_envelope;
}
chan->env.clocks = ((uint32_t) chan->env.interval + 1) * 307220; chan->env.clocks = ((uint32_t) chan->env.interval + 1) * 307220;
} }
@@ -237,8 +237,12 @@ static void vsuWriteEV1(VB *sim, int index, uint8_t value) {
/* Parse fields */ /* Parse fields */
chan->env.enb = value & 1; chan->env.enb = value & 1;
chan->env.rep = value >> 1 & 1; chan->env.rep = value >> 1 & 1;
if (!chan->env.rep && ((chan->env.reload == 0 && chan->env.dir == 0) || (chan->env.reload == 15 && chan->env.dir == 1))) if (
chan->env.modmask = 1; !chan->env.rep && (
(chan->env.reload == 0 && chan->env.dir == 0) ||
(chan->env.reload == 15 && chan->env.dir == 1)
)
) chan->env.modmask = 1;
/* Processing by channel */ /* Processing by channel */
switch (index) { switch (index) {
@@ -294,8 +298,12 @@ static void vsuWriteINT(VB *sim, int index, uint8_t value) {
/* Update state */ /* Update state */
chan->int_.clocks = 76805 * ((uint32_t) chan->int_.interval + 1); chan->int_.clocks = 76805 * ((uint32_t) chan->int_.interval + 1);
chan->env.modmask = 0; chan->env.modmask = 0;
if (!chan->env.rep && ((chan->env.reload == 0 && chan->env.dir == 0) || (chan->env.reload == 15 && chan->env.dir == 1))) if (
chan->env.modmask = 1; !chan->env.rep && (
(chan->env.reload == 0 && chan->env.dir == 0) ||
(chan->env.reload == 15 && chan->env.dir == 1)
)
) chan->env.modmask = 1;
chan->env.clocks = 307220 * ((uint32_t) chan->env.interval + 1); chan->env.clocks = 307220 * ((uint32_t) chan->env.interval + 1);
if (index != 5) { if (index != 5) {
chan->wave.sample = 0; chan->wave.sample = 0;