mirror of https://github.com/bsnes-emu/bsnes.git
36 lines
682 B
C++
36 lines
682 B
C++
auto R6502::op_readpc() -> uint8 {
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return op_read(regs.pc);
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}
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auto R6502::op_readpci() -> uint8 {
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return op_read(regs.pc++);
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}
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auto R6502::op_readsp() -> uint8 {
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return op_read(0x0100 | ++regs.s);
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}
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auto R6502::op_readzp(uint8 addr) -> uint8 {
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return op_read(addr);
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}
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//
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auto R6502::op_writesp(uint8 data) -> void {
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op_write(0x0100 | regs.s--, data);
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}
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auto R6502::op_writezp(uint8 addr, uint8 data) -> void {
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op_write(addr, data);
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}
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//
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auto R6502::op_page(uint16 x, uint16 y) -> void {
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if((x & 0xff00) != (y & 0xff00)) op_read((x & 0xff00) | (y & 0x00ff));
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}
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auto R6502::op_page_always(uint16 x, uint16 y) -> void {
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op_read((x & 0xff00) | (y & 0x00ff));
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}
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