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shrooms-vb-core
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PVB:main
PVB:float-code-fix
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compare: PVB:float-code-fix
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PVB:main
PVB:float-code-fix

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main ... float-code

5 changed files with 24 additions and 34 deletions
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4
core/cpu.c
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@ -234,7 +234,7 @@ static int cpuOnExecute(VB *sim) {
#define VB_ON_READ VB_DIRECT_READ
#endif
static int cpuRead(VB *sim, uint32_t address, int type, int32_t *value) {
uint32_t cycles = 0; /* TODO: Research this */
uint32_t cycles = 4; /* TODO: Research this */
/* Retrieve the value from the simulation state directly */
busRead(sim, address, type, value);
@ -289,7 +289,7 @@ static int cpuReadFetch(VB *sim, int fetch, uint32_t address, int32_t *value) {
#endif
static int cpuWrite(VB *sim, uint32_t address, int type, int32_t value) {
int cancel = 0;
uint32_t cycles = 0; /* TODO: Research this */
uint32_t cycles = 3; /* TODO: Research this */
/* Reset pseudo-halt */
if (sim->ph.enabled)

2
core/vb.c
View File

@ -900,7 +900,7 @@ VBAPI vbOnWrite vbSetWriteCallback(VB *sim, vbOnWrite callback) {
}
/* Determine the size of a simulation instance */
VBAPI size_t vbSizeOf(void) {
VBAPI size_t vbSizeOf() {
return sizeof (VB);
}

2
core/vb.h
View File

@ -166,7 +166,7 @@ VBAPI vbOnSamples vbSetSamplesCallback (VB *sim, vbOnSamples callback);
VBAPI uint32_t vbSetSystemRegister (VB *sim, unsigned index, uint32_t value);
VBAPI void* vbSetUserData (VB *sim, void *tag);
VBAPI vbOnWrite vbSetWriteCallback (VB *sim, vbOnWrite callback);
VBAPI size_t vbSizeOf (void);
VBAPI size_t vbSizeOf ();
VBAPI int32_t vbWrite (VB *sim, uint32_t address, int type, int32_t value);

4
core/vip.c
View File

@ -984,7 +984,7 @@ static void vipDrawHBias(VB *sim, World *world) {
/* Process all visible lines */
param = &sim->vip.ram[world->paramBase +
((y1 - world->gy) << 2) + (i << 1)];
for (y = y1; y < y2; y++, param += 4) {
for (y = y1; y < y2; y++, param += 2) {
/* Configure window bounds */
wnd.y1 = y;
@ -992,7 +992,7 @@ static void vipDrawHBias(VB *sim, World *world) {
/* Draw the background into the window */
vipDrawBackground(sim->vip.shadow[i], &wnd, world,
mx - busReadBuffer(param, VB_S16), my);
mx + busReadBuffer(param, VB_S16), my);
}
}

46
core/vsu.c
View File

@ -132,19 +132,14 @@ static void vsuEmulateChannel(VB *sim, Channel *chan) {
}
/* Envelope modification */
if (chan->env.clocks == 0) {
uint8_t new_envelope = chan->env.value;
if (chan->env.enb && !chan->env.modmask && chan->env.clocks == 0) {
if (chan->env.dir == 0 && chan->env.value != 0)
new_envelope--;
chan->env.value--;
else if (chan->env.dir == 1 && chan->env.value != 15)
new_envelope++;
else if (chan->env.rep && chan->env.modmask != 2) {
new_envelope = chan->env.reload;
chan->env.modmask = 0;
} else if (!chan->env.modmask)
chan->env.modmask = 1;
if (chan->env.enb && !chan->env.modmask)
chan->env.value = new_envelope;
chan->env.value++;
else if (chan->env.rep)
chan->env.value = chan->env.reload;
else chan->env.modmask = 1;
chan->env.clocks = ((uint32_t) chan->env.interval + 1) * 307220;
}
@ -220,7 +215,6 @@ static void vsuWriteEV0(VB *sim, int index, uint8_t value) {
chan->env.interval = value & 7;
chan->env.value = value >> 4 & 15;
chan->env.reload = chan->env.value;
if (chan->env.modmask == 1) chan->env.modmask = 2;
if (index == 4) {
chan->freqmod = vsuCheckFreqMod(sim);
vsuNextFreqMod(sim, chan);
@ -237,12 +231,6 @@ static void vsuWriteEV1(VB *sim, int index, uint8_t value) {
/* Parse fields */
chan->env.enb = value & 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)
)
) chan->env.modmask = 1;
/* Processing by channel */
switch (index) {
@ -298,13 +286,8 @@ static void vsuWriteINT(VB *sim, int index, uint8_t value) {
/* Update state */
chan->int_.clocks = 76805 * ((uint32_t) chan->int_.interval + 1);
chan->env.modmask = 0;
if (
!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);
if (chan->env.enb)
chan->env.clocks = 307220 * ((uint32_t) chan->env.interval + 1);
if (index != 5) {
chan->wave.sample = 0;
chan->clocks = 4 * (2048 - (uint32_t) chan->freq.current);
@ -394,7 +377,7 @@ static void vsuEmulate(VB *sim, uint32_t clocks) {
/* Clocks until next state change */
chan->until = chan->clocks;
if (chan->env.enb && chan->env.modmask != 2 &&
if (chan->env.enb && !chan->env.modmask &&
chan->env.clocks < chan->until)
chan->until = chan->env.clocks;
if (chan->int_.auto_ && chan->int_.clocks < chan->until)
@ -404,7 +387,7 @@ static void vsuEmulate(VB *sim, uint32_t clocks) {
/* Manage clocks */
chan->clocks -= chan->until;
if (chan->env.enb && chan->env.modmask != 2)
if (chan->env.enb && !chan->env.modmask)
chan->env.clocks -= chan->until;
if (chan->int_.auto_)
chan->int_.clocks -= chan->until;
@ -548,7 +531,14 @@ static void vsuReset(VB *sim) {
/* Write a typed value to the VSU bus */
static void vsuWrite(VB*sim,uint32_t address,int type,int32_t value,int debug){
(void) type;
/* Only byte writes are allowed */
switch (type) {
case VB_S16:
case VB_U16:
case VB_S32:
return;
}
/* Unmapped */
if (address & 1)