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#include <sfc/sfc.hpp>
#define SGBEXTERNAL_CPP
namespace SuperFamicom {
SGBExternal sgbExternal;
#include "serialization.cpp"
bool SGBExternal::load_library(const char * path) {
if(open_absolute(path)) {
void* symbol;
#define SYM(x) symbol=sym(#x); if (!symbol) return false; x=symbol;
SYM(sgb_rom);
SYM(sgb_ram);
SYM(sgb_rtc);
SYM(sgb_init);
SYM(sgb_term);
SYM(sgb_power);
SYM(sgb_reset);
SYM(sgb_row);
SYM(sgb_read);
SYM(sgb_write);
SYM(sgb_run);
SYM(sgb_save);
SYM(sgb_serialize);
#undef SYM
return true;
}
return false;
}
void SGBExternal::Enter() { sgbExternal.enter(); }
void SGBExternal::enter() {
while(true) {
if(scheduler.sync == Scheduler::SynchronizeMode::All) {
scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
}
unsigned samples = sgb_run(samplebuffer, 16);
for(unsigned i = 0; i < samples; i++) {
int16 left = samplebuffer[i] >> 0;
int16 right = samplebuffer[i] >> 16;
//SNES audio is notoriously quiet; lower Game Boy samples to match SGB sound effects
audio.coprocessor_sample(left / 3, right / 3);
}
step(samples);
synchronize_cpu();
}
}
void SGBExternal::init() {
}
void SGBExternal::load() {
}
void SGBExternal::unload() {
sgb_term();
}
void SGBExternal::power() {
unsigned frequency = (revision == 1 ? system.cpu_frequency() / 10 : 2097152);
create(SGBExternal::Enter, frequency);
audio.coprocessor_enable(true);
audio.coprocessor_frequency(revision == 1 ? 2147727.0 : 2097152.0);
sgb_rom(GameBoy::cartridge.romdata, GameBoy::cartridge.romsize);
sgb_ram(GameBoy::cartridge.ramdata, GameBoy::cartridge.ramsize);
sgb_rtc(NULL, 0);
bool version = (revision == 1) ? 0 : 1;
if(sgb_init) sgb_init(version);
if(sgb_power) sgb_power();
}
void SGBExternal::reset() {
sgb_reset();
}
uint8 SGBExternal::read(unsigned addr) {
if ((addr&0xFFFF)==0x7800)
{
static int x=319;
static int y=11;
x++;
if (x==320)
{
x=0;
sgb_row(y++);
//printf("%.6x\n",(unsigned) cpu.status.wram_addr);
if (y==18) y=0;
}
}
return sgb_read(addr);
}
void SGBExternal::write(unsigned addr, uint8 data) {
sgb_write(addr, data);
}
}
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