Omega3/CIAGate.cpp at main · h5n1xp/Omega3 · GitHub

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//
//  CIAGate.cpp
//  SDL3Test
//
//  Created by Matt Parsons on 13/03/2026.
//

#include "CIAGate.hpp"


void CIAGate::Init(Chipset* c){
    chipset = c;
}

uint32_t CIAGate::Read8(uint32_t address){

    int reg = (address >> 8) & 0xF;

    if(address & 0x2000){
        return chipset->CIAA.Read(reg);
    }else if(address & 0x1000){
        return chipset->CIAB.Read(reg);
    }
    return 0xFFFFFFFF;
}
uint32_t CIAGate::Read16(uint32_t address){
    return Read8(address);  //probably wrong
}
uint32_t CIAGate::Read32(uint32_t address){
    return Read8(address); //probably wrong
}

void CIAGate::Write8(uint32_t address, uint32_t value){

    int reg = (address >> 8) & 0xF;

    if(address & 0x2000){
        chipset->CIAA.Write(reg, value);
        return;
    }else if(address & 0x1000){
        chipset->CIAB.Write(reg, value);
        return;
    }

}
void CIAGate::Write16(uint32_t address, uint32_t value){
    Write8(address, value);
    return;
}
void CIAGate::Write32(uint32_t address, uint32_t value){
    Write8(address, value);
    return;
}