102 lines
1.9 KiB
C++
102 lines
1.9 KiB
C++
#define CYCLE_ACCURATE
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#include <snes/snes.hpp>
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#define SMP_CPP
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namespace SNES {
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SMP smp;
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#include "algorithms.cpp"
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#include "core.cpp"
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#include "iplrom.cpp"
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#include "memory.cpp"
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#include "timing.cpp"
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void SMP::synchronize_cpu() {
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if(CPU::Threaded == true) {
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//if(clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(cpu.thread);
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} else {
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while(clock >= 0) cpu.enter();
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}
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}
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void SMP::synchronize_dsp() {
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if(DSP::Threaded == true) {
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//if(dsp.clock < 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(dsp.thread);
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} else {
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while(dsp.clock < 0) dsp.enter();
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}
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}
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void SMP::enter() {
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while(clock < 0) op_step();
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}
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void SMP::power() {
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Processor::frequency = system.apu_frequency();
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Processor::clock = 0;
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timer0.target = 0;
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timer1.target = 0;
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timer2.target = 0;
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for(unsigned n = 0; n < 256; n++) {
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cycle_table_dsp[n] = (cycle_count_table[n] * 24);
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cycle_table_cpu[n] = (cycle_count_table[n] * 24) * cpu.frequency;
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}
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cycle_step_cpu = 24 * cpu.frequency;
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reset();
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}
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void SMP::reset() {
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for(unsigned n = 0x0000; n <= 0xffff; n++) apuram[n] = 0x00;
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opcode_number = 0;
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opcode_cycle = 0;
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regs.pc = 0xffc0;
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regs.sp = 0xef;
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regs.a = 0x00;
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regs.x = 0x00;
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regs.y = 0x00;
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regs.p = 0x02;
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//$00f1
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status.iplrom_enable = true;
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//$00f2
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status.dsp_addr = 0x00;
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//$00f8,$00f9
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status.ram00f8 = 0x00;
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status.ram00f9 = 0x00;
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//timers
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timer0.enable = timer1.enable = timer2.enable = false;
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timer0.stage1_ticks = timer1.stage1_ticks = timer2.stage1_ticks = 0;
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timer0.stage2_ticks = timer1.stage2_ticks = timer2.stage2_ticks = 0;
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timer0.stage3_ticks = timer1.stage3_ticks = timer2.stage3_ticks = 0;
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}
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SMP::SMP() :
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apuram(nullptr)
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{
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}
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SMP::~SMP() {
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interface()->freeSharedMemory(apuram);
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}
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void SMP::initialize()
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{
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apuram = (uint8*)interface()->allocSharedMemory("APURAM", 64 * 1024);
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}
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}
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