mirror of https://github.com/bsnes-emu/bsnes.git
34 lines
898 B
C++
34 lines
898 B
C++
//ROM / RAM access from the S-CPU
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auto SuperFX::CPUROM::size() const -> uint {
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return superfx.rom.size();
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}
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auto SuperFX::CPUROM::read(uint24 addr, uint8 data) -> uint8 {
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if(superfx.regs.sfr.g && superfx.regs.scmr.ron) {
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static const uint8 vector[16] = {
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0x00, 0x01, 0x00, 0x01, 0x04, 0x01, 0x00, 0x01,
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0x00, 0x01, 0x08, 0x01, 0x00, 0x01, 0x0c, 0x01,
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};
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return vector[addr & 15];
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}
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return superfx.rom.read(addr, data);
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}
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auto SuperFX::CPUROM::write(uint24 addr, uint8 data) -> void {
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superfx.rom.write(addr, data);
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}
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auto SuperFX::CPURAM::size() const -> uint {
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return superfx.ram.size();
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}
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auto SuperFX::CPURAM::read(uint24 addr, uint8 data) -> uint8 {
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if(superfx.regs.sfr.g && superfx.regs.scmr.ran) return data;
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return superfx.ram.read(addr, data);
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}
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auto SuperFX::CPURAM::write(uint24 addr, uint8 data) -> void {
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superfx.ram.write(addr, data);
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}
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