bool DSPCore_Init(const DSPInitOptions& opts)
{
g_dsp.step_counter = 0;
g_init_hax = false;
g_dsp.accelerator = std::make_unique<LLEAccelerator>();
g_dsp.irom = static_cast<u16*>(Common::AllocateMemoryPages(DSP_IROM_BYTE_SIZE));
g_dsp.iram = static_cast<u16*>(Common::AllocateMemoryPages(DSP_IRAM_BYTE_SIZE));
g_dsp.dram = static_cast<u16*>(Common::AllocateMemoryPages(DSP_DRAM_BYTE_SIZE));
g_dsp.coef = static_cast<u16*>(Common::AllocateMemoryPages(DSP_COEF_BYTE_SIZE));
memcpy(g_dsp.irom, opts.irom_contents.data(), DSP_IROM_BYTE_SIZE);
memcpy(g_dsp.coef, opts.coef_contents.data(), DSP_COEF_BYTE_SIZE);
// Try to load real ROM contents.
if (!VerifyRoms())
{
DSPCore_FreeMemoryPages();
return false;
}
memset(&g_dsp.r, 0, sizeof(g_dsp.r));
std::fill(std::begin(g_dsp.reg_stack_ptr), std::end(g_dsp.reg_stack_ptr), 0);
for (size_t i = 0; i < ArraySize(g_dsp.reg_stack); i++)
std::fill(std::begin(g_dsp.reg_stack[i]), std::end(g_dsp.reg_stack[i]), 0);
// Fill IRAM with HALT opcodes.
std::fill(g_dsp.iram, g_dsp.iram + DSP_IRAM_SIZE, 0x0021);
// Just zero out DRAM.
std::fill(g_dsp.dram, g_dsp.dram + DSP_DRAM_SIZE, 0);
// Copied from a real console after the custom UCode has been loaded.
// These are the indexing wrapping registers.
std::fill(std::begin(g_dsp.r.wr), std::end(g_dsp.r.wr), 0xffff);
g_dsp.r.sr |= SR_INT_ENABLE;
g_dsp.r.sr |= SR_EXT_INT_ENABLE;
g_dsp.cr = 0x804;
gdsp_ifx_init();
// Mostly keep IRAM write protected. We unprotect only when DMA-ing
// in new ucodes.
Common::WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
// Initialize JIT, if necessary
if (opts.core_type == DSPInitOptions::CORE_JIT)
g_dsp_jit = std::make_unique<JIT::x64::DSPEmitter>();
g_dsp_cap.reset(opts.capture_logger);
core_state = State::Running;
return true;
}
void DSPCore_Shutdown()
{
if (core_state == DSPCORE_STOP)
return;
core_state = DSPCORE_STOP;
if (dspjit) {
delete dspjit;
dspjit = nullptr;
}
DSPCore_FreeMemoryPages();
}
void DSPCore_Shutdown()
{
if (core_state == DSPCORE_STOP)
return;
core_state = DSPCORE_STOP;
g_dsp_jit.reset();
DSPCore_FreeMemoryPages();
g_dsp_cap.reset();
}
void DSPCore_Shutdown()
{
if (core_state == State::Stopped)
return;
core_state = State::Stopped;
g_dsp_jit.reset();
DSPCore_FreeMemoryPages();
g_dsp_cap.reset();
}
void DSPCore_Shutdown()
{
if (core_state == DSPCORE_STOP)
return;
core_state = DSPCORE_STOP;
if(dspjit) {
delete dspjit;
dspjit = NULL;
}
DSPCore_FreeMemoryPages();
Memory::AllocationMessage("DSPCore Shutdown");
}
bool DSPCore_Init(const std::string& irom_filename, const std::string& coef_filename, bool bUsingJIT)
{
g_dsp.step_counter = 0;
cyclesLeft = 0;
init_hax = false;
dspjit = nullptr;
g_dsp.irom = (u16*)AllocateMemoryPages(DSP_IROM_BYTE_SIZE);
g_dsp.iram = (u16*)AllocateMemoryPages(DSP_IRAM_BYTE_SIZE);
g_dsp.dram = (u16*)AllocateMemoryPages(DSP_DRAM_BYTE_SIZE);
g_dsp.coef = (u16*)AllocateMemoryPages(DSP_COEF_BYTE_SIZE);
// Fill roms with zeros.
memset(g_dsp.irom, 0, DSP_IROM_BYTE_SIZE);
memset(g_dsp.coef, 0, DSP_COEF_BYTE_SIZE);
// Try to load real ROM contents.
if (!LoadRom(irom_filename, DSP_IROM_SIZE, g_dsp.irom) ||
!LoadRom(coef_filename, DSP_COEF_SIZE, g_dsp.coef) ||
!VerifyRoms(irom_filename, coef_filename))
{
DSPCore_FreeMemoryPages();
return false;
}
memset(&g_dsp.r,0,sizeof(g_dsp.r));
for (int i = 0; i < 4; i++)
{
g_dsp.reg_stack_ptr[i] = 0;
for (int j = 0; j < DSP_STACK_DEPTH; j++)
{
g_dsp.reg_stack[i][j] = 0;
}
}
// Fill IRAM with HALT opcodes.
for (int i = 0; i < DSP_IRAM_SIZE; i++)
{
g_dsp.iram[i] = 0x0021; // HALT opcode
}
// Just zero out DRAM.
for (int i = 0; i < DSP_DRAM_SIZE; i++)
{
g_dsp.dram[i] = 0;
}
// Copied from a real console after the custom UCode has been loaded.
// These are the indexing wrapping registers.
g_dsp.r.wr[0] = 0xffff;
g_dsp.r.wr[1] = 0xffff;
g_dsp.r.wr[2] = 0xffff;
g_dsp.r.wr[3] = 0xffff;
g_dsp.r.sr |= SR_INT_ENABLE;
g_dsp.r.sr |= SR_EXT_INT_ENABLE;
g_dsp.cr = 0x804;
gdsp_ifx_init();
// Mostly keep IRAM write protected. We unprotect only when DMA-ing
// in new ucodes.
WriteProtectMemory(g_dsp.iram, DSP_IRAM_BYTE_SIZE, false);
// Initialize JIT, if necessary
if (bUsingJIT)
dspjit = new DSPEmitter();
core_state = DSPCORE_RUNNING;
return true;
}