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uint8 R6502::op_readpc() {
return op_read(regs.pc);
}
uint8 R6502::op_readpci() {
return op_read(regs.pc++);
}
uint8 R6502::op_readsp() {
return op_read(0x0100 | ++regs.s);
}
uint8 R6502::op_readzp(uint8 addr) {
return op_read(addr);
}
//
void R6502::op_writesp(uint8 data) {
op_write(0x0100 | regs.s--, data);
}
void R6502::op_writezp(uint8 addr, uint8 data) {
op_write(addr, data);
}
//
void R6502::op_page(uint16 x, uint16 y) {
if((x & 0xff00) != (y & 0xff00)) op_read((x & 0xff00) | (y & 0x00ff));
}
void R6502::op_page_always(uint16 x, uint16 y) {
op_read((x & 0xff00) | (y & 0x00ff));
}
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