mirror of https://github.com/bsnes-emu/bsnes.git
39 lines
1010 B
C++
39 lines
1010 B
C++
auto VDP::VRAM::read(uint15 address) const -> uint16 {
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return memory[address];
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}
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auto VDP::VRAM::write(uint15 address, uint16 data) -> void {
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memory[address] = data;
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if(address < vdp.sprite.io.attributeAddress) return;
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if(address > vdp.sprite.io.attributeAddress + 319) return;
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vdp.sprite.write(address, data);
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}
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auto VDP::VRAM::readByte(uint16 address) const -> uint8 {
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return read(address >> 1).byte(!address.bit(0));
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}
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auto VDP::VRAM::writeByte(uint16 address, uint8 data) -> void {
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auto word = read(address >> 1);
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word.byte(!address.bit(0)) = data;
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write(address >> 1, word);
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}
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auto VDP::VSRAM::read(uint6 address) const -> uint10 {
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if(address >= 40) return 0x0000;
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return memory[address];
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}
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auto VDP::VSRAM::write(uint6 address, uint10 data) -> void {
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if(address >= 40) return;
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memory[address] = data;
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}
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auto VDP::CRAM::read(uint6 address) const -> uint9 {
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return memory[address];
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}
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auto VDP::CRAM::write(uint6 address, uint9 data) -> void {
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memory[address] = data;
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}
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