mirror of
https://github.com/zoriya/ComSquare.git
synced 2026-06-09 04:24:58 +00:00
Zoe Roux
27 lines
600 B
C++
27 lines
600 B
C++
//
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// Created by Melefo on 25/02/2020.
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//
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#include "APU/APU.hpp"
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namespace ComSquare::APU
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{
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int APU::MOVW(uint24_t addr, bool to_ya)
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{
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uint24_t addr2 = addr + 1 + (this->_internalRegisters.p ? 0x0100 : 0);
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if (to_ya) {
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uint8_t tmp = this->_internalRead(addr2);
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uint16_t value = (tmp << 8) | this->_internalRead(addr);
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this->_internalRegisters.a = value;
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this->_internalRegisters.y = (value >> 8);
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this->_setNZflags(value);
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}
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else {
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this->_internalWrite(addr, this->_internalRegisters.a);
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this->_internalWrite(addr2, this->_internalRegisters.y);
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}
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return 5;
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}
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} |