88 lines
1.5 KiB
C++
Executable File
88 lines
1.5 KiB
C++
Executable File
#include <../base.hpp>
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#define SSMP_CPP
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namespace SNES {
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#include "memory/memory.cpp"
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#include "timing/timing.cpp"
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void sSMP::enter() {
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while(true) {
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tracer.trace_smpop(); //traces SMP opcode (only if tracer is enabled)
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(this->*opcode_table[op_readpc()])();
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//forcefully sync S-CPU and S-SMP, in case chips are not communicating
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static unsigned counter = 0;
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if(++counter >= 128) {
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counter = 0;
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scheduler.sync_smpcpu();
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}
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}
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}
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void sSMP::power() {
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//targets not initialized/changed upon reset
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t0.target = 0;
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t1.target = 0;
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t2.target = 0;
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reset();
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}
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void sSMP::reset() {
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regs.pc = 0xffc0;
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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.sp = 0xef;
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regs.p = 0x02;
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for(unsigned i = 0; i < memory::apuram.size(); i++) {
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memory::apuram.write(i, 0x00);
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}
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status.clock_counter = 0;
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status.dsp_counter = 0;
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//$00f0
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status.clock_speed = 24 * 3 / 3;
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status.mmio_disabled = false;
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status.ram_writable = true;
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//$00f1
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status.iplrom_enabled = 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.smp_f8 = 0x00;
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status.smp_f9 = 0x00;
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t0.enabled = false;
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t1.enabled = false;
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t2.enabled = false;
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t0.stage1_ticks = 0;
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t1.stage1_ticks = 0;
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t2.stage1_ticks = 0;
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t0.stage2_ticks = 0;
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t1.stage2_ticks = 0;
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t2.stage2_ticks = 0;
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t0.stage3_ticks = 0;
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t1.stage3_ticks = 0;
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t2.stage3_ticks = 0;
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}
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sSMP::sSMP() {
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initialize_opcode_table();
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}
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sSMP::~sSMP() {
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}
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};
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