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Game Boy: add chip revision flag

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tildearrow 2022-08-11 00:46:15 -05:00
parent 92f40774e4
commit 340052cf0a
3 changed files with 52 additions and 5 deletions
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35
src/engine/platform/gb.cpp
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@ -21,8 +21,8 @@
#include "../engine.h"
#include <math.h>
#define rWrite(a,v) if (!skipRegisterWrites) {GB_apu_write(gb,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
#define immWrite(a,v) {GB_apu_write(gb,a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
#define rWrite(a,v) if (!skipRegisterWrites) {writes.emplace(a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
#define immWrite(a,v) {writes.emplace(a,v); regPool[(a)&0x7f]=v; if (dumpWrites) {addWrite(a,v);} }
#define CHIP_DIVIDER 16
@ -84,6 +84,12 @@ const char* DivPlatformGB::getEffectName(unsigned char effect) {
void DivPlatformGB::acquire(short* bufL, short* bufR, size_t start, size_t len) {
for (size_t i=start; i<start+len; i++) {
if (!writes.empty()) {
QueuedWrite& w=writes.front();
GB_apu_write(gb,w.addr,w.val);
writes.pop();
}
GB_advance_cycles(gb,16);
bufL[i]=gb->apu_output.final_sample.left;
bufR[i]=gb->apu_output.final_sample.right;
@ -97,8 +103,8 @@ void DivPlatformGB::acquire(short* bufL, short* bufR, size_t start, size_t len)
void DivPlatformGB::updateWave() {
rWrite(0x1a,0);
for (int i=0; i<16; i++) {
int nibble1=15-ws.output[((i<<1)+antiClickWavePos)&31];
int nibble2=15-ws.output[((1+(i<<1))+antiClickWavePos)&31];
int nibble1=15-ws.output[((i<<1)+antiClickWavePos-1)&31];
int nibble2=15-ws.output[((1+(i<<1))+antiClickWavePos-1)&31];
rWrite(0x30+i,(nibble1<<4)|nibble2);
}
antiClickWavePos&=31;
@ -559,7 +565,7 @@ void DivPlatformGB::reset() {
}
memset(gb,0,sizeof(GB_gameboy_t));
memset(regPool,0,128);
gb->model=GB_MODEL_DMG_B;
gb->model=model;
GB_apu_init(gb);
GB_set_sample_rate(gb,rate);
// enable all channels
@ -581,6 +587,10 @@ bool DivPlatformGB::isStereo() {
return true;
}
bool DivPlatformGB::getDCOffRequired() {
return (model==GB_MODEL_AGB);
}
void DivPlatformGB::notifyInsChange(int ins) {
for (int i=0; i<4; i++) {
if (chan[i].ins==ins) {
@ -613,6 +623,20 @@ void DivPlatformGB::poke(std::vector<DivRegWrite>& wlist) {
void DivPlatformGB::setFlags(unsigned int flags) {
antiClickEnabled=!(flags&8);
switch (flags&3) {
case 0:
model=GB_MODEL_DMG_B;
break;
case 1:
model=GB_MODEL_CGB_C;
break;
case 2:
model=GB_MODEL_CGB_E;
break;
case 3:
model=GB_MODEL_AGB;
break;
}
}
int DivPlatformGB::init(DivEngine* p, int channels, int sugRate, unsigned int flags) {
@ -626,6 +650,7 @@ int DivPlatformGB::init(DivEngine* p, int channels, int sugRate, unsigned int fl
parent=p;
dumpWrites=false;
skipRegisterWrites=false;
model=GB_MODEL_DMG_B;
gb=new GB_gameboy_t;
setFlags(flags);
reset();