Untitled

Ricoh2A03 = function () {}
Ricoh2A03.prototype.newCartridgeInstance = function () {
    this.startup();
    this.initializeMemoryJumps();
}
Ricoh2A03.prototype.startup = function () {
    //CPU Registers:
    this.programCounter = 0;    //Program Counter (The current address of the executing instruction.)
    this.stackPointer = 0xFF;   //Stack Pointer (We take care of the 0x100 paging.)
    this.accumulator = 0;       //The accumulator (The variable on the CPU that's used as the main target for math operations.)
    this.registerX = 0;         //Index register X (Used as an offset to some operations.)
    this.registerY = 0;         //Index register Y (Used as an offset to some operations.)
    //Program Status Register Flags:
    this.FlagNegative = false;  //Was bit 7 of the last number worked on set?
    this.FlagOverflow = false;  //Did bit 6 of the last number worked on carry over to bit 7?
    this.FlagBRK = false;       //Was the BRK instruction executed?
    this.FlagDecimal = 0x20;    //Unused decimal flag bit + bit 5.
    this.FlagIRQ = false;       //Are IRQs disabled?
    this.FlagZero = false;      //Was the last number worked on equal to 0?
    this.FlagCarry = false;     //Did bit 7 overflow or bit 0 underflow in the last number worked on?
    //memory arrays:
    this.memory = this.getUInt8Array(0x800, 0);
}
Ricoh2A03.prototype.hardwareReset = function () {
    //CPU Registers:
    this.programCounter = 0;    //Program Counter (The current address of the executing instruction.)
    this.stackPointer = 0xFF;   //Stack Pointer (We take care of the 0x100 paging.)
    this.accumulator = 0;       //The accumulator (The variable on the CPU that's used as the main target for math operations.)
    this.registerX = 0;         //Index register X (Used as an offset to some operations.)
    this.registerY = 0;         //Index register Y (Used as an offset to some operations.)
    //Program Status Register Flags:
    this.FlagNegative = false;  //Was bit 7 of the last number worked on set?
    this.FlagOverflow = false;  //Did bit 6 of the last number worked on carry over to bit 7?
    this.FlagBRK = false;       //Was the BRK instruction executed?
    this.FlagDecimal = 0x20;    //Unused decimal flag bit + bit 5.
    this.FlagIRQ = false;       //Are IRQs disabled?
    this.FlagZero = false;      //Was the last number worked on equal to 0?
    this.FlagCarry = false;     //Did bit 7 overflow or bit 0 underflow in the last number worked on?
    //memory arrays:
    this.memory = this.getUInt8Array(0x800, 0);
}
Ricoh2A03.prototype.initializeMemoryJumps() = function () {
    //memory jump arrays:
    this.memoryWriter = [];
    this.memoryReader = [];
    this.writePPU = [];
    this.memoryWriteCompiler();
}
Ricoh2A03.prototype.OPCODES = [
    //BRK impl:
    //0x00:
    function (parentObj) {
        parentObj.memory[0x100 | parentObj.stackPointer] = parentObj.programCounter >> 8;
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.memory[0x100 | parentObj.stackPointer] = parentObj.programCounter & 0xFF;
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.programCounter = (parentObj.memoryReader[0xFFFE](parentObj, 0xFFFE) << 8) | parentObj.memoryReader[0xFFFF](parentObj, 0xFFFF);
        parentObj.FlagBRK = true;
        parentObj.CPUTicks += 7;
    },
    //ORA (Indirect, X):
    //0x01:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        address = (0x100 + (address * 0x101)) & 0xFFFF;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator |= parentObj.memoryReader[address](parentObj, address);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 6;
    },
    //KIL:
    //0x02:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x02);
    },
    //SLO (Indirect, X):
    //0x03:
    function (parentObj) {
        //TODO
        throw(new Error("Unimplemented opcode #0x03 executed."));
        parentObj.CPUTicks += 8;
    },
    //DOP Zero Page:
    //#0x04:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //ASL Zero Page:
    //0x06:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        var temp_var = parentObj.memory[address];
        parentObj.FlagCarry = (temp_var > 0x7F);
        parentObj.memory[address] = temp_var = (temp_var << 1) & 0xFF;
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 5;
    },
    //PHP:
    //0x08:
    function (parentObj) {
        parentObj.memory[0x100 | parentObj.stackPointer] = ((parentObj.FlagNegative) ? 0x80: 0) | ((parentObj.FlagOverflow) ? 0x40: 0) | ((parentObj.FlagBRK) ? 0x10: 0) | parentObj.FlagDecimal | ((parentObj.FlagIRQ) ? 0x04: 0) | ((parentObj.FlagZero) ? 0x02: 0) | ((parentObj.FlagCarry) ? 0x01: 0);
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.CPUTicks += 3;
    },
    //ASL Accumulator:
    //0x0A:
    function (parentObj) {
        parentObj.FlagCarry = (parentObj.accumulator > 0x7F);
        parentObj.accumulator = (parentObj.accumulator << 1) & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 2;
    },
    //BPL:
    //0x10:
    function (parentObj) {
        if (!parentObj.FlagNegative) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //KIL:
    //0x12:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x12);
    },
    //DOP Zero Page, X:
    //#0x14:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //CLC:
    //0x18:
    function (parentObj) {
        parentObj.FlagCarry = false;
        parentObj.CPUTicks += 2;
    },
    //JSR:
    //0x20:
    function (parentObj) {
        var temp_var = (parentObj.memoryRead((parentObj.programCounter + 1) & 0xFFFF) << 8) | parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.memory[0x100 | parentObj.stackPointer] = parentObj.programCounter >> 8;
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.memory[0x100 | parentObj.stackPointer] = parentObj.programCounter & 0xFF;
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.programCounter = temp_var;
        parentObj.CPUTicks += 6;
    },
    //AND (Indirect, X):
    //0x21:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        address = (0x100 + (address * 0x101)) & 0xFFFF;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator &= parentObj.memoryReader[address](parentObj, address);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 6;
    },
    //KIL:
    //0x22:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x22);
    },
    //BIT Zero Page:
    //0x24:
    function (parentObj) {
        parentObj.accumulator &= parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagOverflow = ((parentObj.accumulator & 0x40) == 0x40);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.CPUTicks += 3;
    },
    //AND Zero Page:
    //0x25:
    function (parentObj) {
        parentObj.accumulator &= parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 3;
    },
    //PLP:
    //0x28:
    function (parentObj) {
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        var status = parentObj.memory[0x100 | parentObj.stackPointer];
        parentObj.FlagNegative = (status > 0x7F);
        parentObj.FlagOverflow = ((status & 0x40) == 0x40);
        parentObj.FlagBRK = ((status & 0x10) == 0x10);
        parentObj.FlagDecimal = ((status & 0x08) == 0x08) ? 0x28 : 0x20;
        parentObj.FlagIRQ = ((status & 0x04) == 0x04);
        parentObj.FlagZero = ((status & 0x02) == 0x02);
        parentObj.FlagCarry = ((status & 0x01) == 0x01);
        parentObj.CPUTicks += 4;
    },
    //AND Immediate:
    //0x29:
    function (parentObj) {
        parentObj.accumulator &= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 2;
    },
    //BIT Absolute:
    //0x2C:
    function (parentObj) {
        parentObj.accumulator &= (parentObj.memoryRead((parentObj.programCounter + 1) & 0xFFFF) << 8) | parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 2) & 0xFFFF;
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagOverflow = ((parentObj.accumulator & 0x40) == 0x40);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.CPUTicks += 4;
    },
    //AND Absolute:
    //0x2D:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator &= parentObj.memoryReader[temp_var](parentObj, temp_var);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 2;
    },
    //BMI:
    //0x30:
    function (parentObj) {
        if (parentObj.FlagNegative) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //AND (Indirect), Y:
    //0x31:
    function (parentObj) {
        var address = (0x100 + (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) * 0x101)) & 0xFFFF;
        var address2 = (address + parentObj.registerY) & 0xFFFF;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator &= parentObj.memoryReader[address2](parentObj, address2);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += ((address ^ address2) > 0xFF) ? 6 : 5;
    },
    //KIL:
    //0x32:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x32);
    },
    //DOP Zero Page, X:
    //#0x34:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //AND Zero Page, X:
    //0x35:
    function (parentObj) {
        parentObj.accumulator &= parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //SEC:
    //0x38:
    function (parentObj) {
        parentObj.FlagCarry = true;
        parentObj.CPUTicks += 2;
    },
    //AND Absolute, Y:
    //0x39:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        address |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((address & 0xFF) + parentObj.registerY) > 0xFF) ? 5 : 4;
        address = (address + parentObj.registerY) & 0xFFFF;
        parentObj.accumulator &= parentObj.memoryReader[address](parentObj, address);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //AND Absolute, X:
    //0x3D:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        address |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((address & 0xFF) + parentObj.registerX) > 0xFF) ? 5 : 4;
        address = (address + parentObj.registerX) & 0xFFFF;
        parentObj.accumulator &= parentObj.memoryReader[address](parentObj, address);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //RTI:
    //0x40:
    function (parentObj) {
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        var status = parentObj.memory[0x100 | parentObj.stackPointer];
        parentObj.FlagNegative = (status > 0x7F);
        parentObj.FlagOverflow = ((status & 0x40) == 0x40);
        parentObj.FlagBRK = ((status & 0x10) == 0x10);
        parentObj.FlagDecimal = ((status & 0x08) == 0x08) ? 0x28 : 0x20;
        parentObj.FlagIRQ = ((status & 0x04) == 0x04);
        parentObj.FlagZero = ((status & 0x02) == 0x02);
        parentObj.FlagCarry = ((status & 0x01) == 0x01);
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        parentObj.programCounter = parentObj.memory[0x100 | parentObj.stackPointer];
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        parentObj.programCounter |= parentObj.memory[0x100 | parentObj.stackPointer] << 8;
        parentObj.CPUTicks += 6;
    },
    //KIL:
    //0x42:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x42);
    },
    //DOP Zero Page:
    //#0x44:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //LSR Zero Page:
    //0x46:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        var temp_var = parentObj.memory[address];
        parentObj.memory[address] = temp_var >> 1;
        parentObj.FlagCarry = ((temp_var & 0x01) == 0x01);
        parentObj.FlagZero = (temp_var < 2);
        parentObj.FlagNegative = false;
        parentObj.CPUTicks += 5;
    },
    //PHA
    //0x48:
    function (parentObj) {
        parentObj.memory[0x100 | parentObj.stackPointer] = parentObj.accumulator;
        parentObj.stackPointer = (parentObj.stackPointer - 1) & 0xFF;
        parentObj.CPUTicks += 3;
    },
    //LSR Accumulator:
    //0x4A:
    function (parentObj) {
        parentObj.FlagCarry = ((parentObj.accumulator & 0x01) == 0x01);
        parentObj.accumulator >>= 1;
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagNegative = false;
        parentObj.CPUTicks += 2;
    },
    //JMP Absolute:
    //0x4C:
    function (parentObj) {
        parentObj.programCounter = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) | (parentObj.memoryRead(parentObj, (parentObj.programCounter + 1) & 0xFFFF) << 8);
        parentObj.CPUTicks += 3;
    },
    //LSR Absolute:
    //0x4E:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        address |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        var temp_var = parentObj.memoryReader[address](parentObj, address);
        parentObj.memoryWriter[address](parentObj, address, temp_var >> 1);
        parentObj.FlagCarry = ((temp_var & 0x01) == 0x01);
        parentObj.FlagZero = (temp_var < 2);
        parentObj.FlagNegative = false;
        parentObj.CPUTicks += 6;
    },
    //BVC:
    //0x50:
    function (parentObj) {
        if (!parentObj.FlagOverflow) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //KIL:
    //0x52:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x52);
    },
    //DOP Zero Page, X:
    //#0x54:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //LSR Zero Page, X:
    //0x56:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        var temp_var = parentObj.memory[address];
        parentObj.memory[address] = temp_var >> 1;
        parentObj.FlagCarry = ((temp_var & 0x01) == 0x01);
        parentObj.FlagZero = (temp_var < 2);
        parentObj.FlagNegative = false;
        parentObj.CPUTicks += 6;
    },
    //CLI:
    //0x58:
    function (parentObj) {
        parentObj.FlagIRQ = false;
        parentObj.CPUTicks += 2;
    },
    //LSR Absolute, X:
    //0x5E:
    function (parentObj) {
        var address = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        address |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        address = (address + parentObj.registerX) & 0xFFFF;
        var temp_var = parentObj.memoryReader[address](parentObj, address);
        parentObj.memoryWriter[address](parentObj, address, temp_var >> 1);
        parentObj.FlagCarry = ((temp_var & 0x01) == 0x01);
        parentObj.FlagZero = (temp_var < 2);
        parentObj.FlagNegative = false;
        parentObj.CPUTicks += 7;
    },
    //RTS:
    //0x60:
    function (parentObj) {
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        parentObj.programCounter = parentObj.memory[0x100 | parentObj.stackPointer];
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        parentObj.programCounter |= parentObj.memory[0x100 | parentObj.stackPointer] << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 6;
    },
    //ADC (Indirect, X):
    //0x61:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        address = (0x100 + (address * 0x101)) & 0xFFFF;
        var temp_var = parentObj.accumulator + parentObj.memoryReader[address](parentObj, address) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 6;
    },
    //KIL:
    //0x62:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x62);
    },
    //DOP Zero Page:
    //#0x64:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //ADC Zero Page:
    //0x65:
    function (parentObj) {
        var temp_var = parentObj.accumulator + parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)] + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 3;
    },
    //PLA
    //0x68:
    function (parentObj) {
        parentObj.stackPointer = (parentObj.stackPointer + 1) & 0xFF;
        parentObj.accumulator = parentObj.memory[0x100 | parentObj.stackPointer];
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.CPUTicks += 4;
    },
    //ADC Immediate:
    //0x69:
    function (parentObj) {
        var temp_var = parentObj.accumulator + parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 2;
    },
    //ADC Absolute:
    //0x6D:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var = parentObj.accumulator + parentObj.memoryReader[temp_var](parentObj, temp_var) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //BVS:
    //0x70:
    function (parentObj) {
        if (parentObj.FlagOverflow) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //ADC (Indirect), Y:
    //0x71:
    function (parentObj) {
        var address = (0x100 + (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) * 0x101)) & 0xFFFF;
        var address2 = (address + parentObj.registerY) & 0xFFFF;
        var temp_var = parentObj.accumulator + parentObj.memoryReader[address2](parentObj, address2) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += ((address ^ address2) > 0xFF) ? 6 : 5;
    },
    //KIL:
    //0x72:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x72);
    },
    //DOP Zero Page, X:
    //#0x74:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //ADC Zero Page, X:
    //0x75:
    function (parentObj) {
        var temp_var = parentObj.accumulator + parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF] + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //SEI:
    //0x78:
    function (parentObj) {
        parentObj.FlagIRQ = true;
        parentObj.CPUTicks += 2;
    },
    //ADC Absolute, Y:
    //0x79:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerY) > 0xFF) ? 5 : 4;
        temp_var = parentObj.accumulator + parentObj.memoryRead((temp_var + parentObj.registerY) & 0xFFFF) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //ADC Absolute, X:
    //0x7D:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerX) > 0xFF) ? 5 : 4;
        temp_var = parentObj.accumulator + parentObj.memoryRead((temp_var + parentObj.registerX) & 0xFFFF) + ((parentObj.FlagCarry) ? 1 : 0);
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagOverflow = (((temp_var ^ parentObj.accumulator) & 0x80) == 0x80);
        parentObj.accumulator = temp_var & 0xFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //DOP Immediate:
    //#0x80:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 2;
    },
    //STA (Indirect, X):
    //0x81:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        address = (0x100 + (address * 0x101)) & 0xFFFF;
        parentObj.memoryWriter[address](parentObj, address, parentObj.accumulator);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 6;
    },
    //DOP Immediate:
    //#0x82:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 2;
    },
    //STY Zero Page:
    //0x84:
    function (parentObj) {
        parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)] = parentObj.registerY;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //STA Zero Page:
    //0x85:
    function (parentObj) {
        parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)] = parentObj.accumulator;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //STX Zero Page:
    //0x86:
    function (parentObj) {
        parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)] = parentObj.registerX;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 3;
    },
    //DEY:
    //0x88:
    function (parentObj) {
        parentObj.registerY = (parentObj.registerY - 1) & 0xFF;
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.CPUTicks += 2;
    },
    //DOP Immediate:
    //#0x89:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 2;
    },
    //TXA:
    //0x8A:
    function (parentObj) {
        parentObj.accumulator = parentObj.registerX;
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.CPUTicks += 2;
    },
    //STY Absolute:
    //0x8C:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.memoryWriter[temp_var](parentObj, temp_var, parentObj.registerY);
        parentObj.CPUTicks += 4;
    },
    //STA Absolute:
    //0x8D:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.memoryWriter[temp_var](parentObj, temp_var, parentObj.accumulator);
        parentObj.CPUTicks += 4;
    },
    //STX Absolute:
    //0x8E:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.memoryWriter[temp_var](parentObj, temp_var, parentObj.registerX);
        parentObj.CPUTicks += 4;
    },
    //BCC:
    //0x90:
    function (parentObj) {
        if (!parentObj.FlagCarry) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //STA (Indirect), Y:
    //0x91:
    function (parentObj) {
        var address = (0x100 + (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) * 0x101)) & 0xFFFF;
        var address2 = (address + parentObj.registerY) & 0xFFFF;
        parentObj.memoryWriter[address2](parentObj, address2, parentObj.accumulator);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += ((address ^ address2) > 0xFF) ? 6 : 5;
    },
    //KIL:
    //0x92:
    function (parentObj) {
        parentObj.opcodeKILCalled(0x92);
    },
    //STY Zero Page, X:
    //0x94:
    function (parentObj) {
        parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF] = parentObj.registerY;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //STA Zero Page, X:
    //0x95:
    function (parentObj) {
        parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF] = parentObj.accumulator;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //STX Zero Page, Y:
    //0x96:
    function (parentObj) {
        parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerY) & 0xFF] = parentObj.registerX;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //TYA:
    //0x98:
    function (parentObj) {
        parentObj.accumulator = parentObj.registerY;
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.CPUTicks += 2;
    },
    //STA Absolute, Y:
    //0x99:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.registerY = parentObj.memoryWrite((temp_var + parentObj.registerY) & 0xFFFF, parentObj.accumulator);
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerY) > 0xFF) ? 5 : 4;
    },
    //TXS:
    //0x9A:
    function (parentObj) {
        parentObj.stackPointer = parentObj.registerX;
        parentObj.CPUTicks += 2;
    },
    //STA Absolute, X:
    //0x9D:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.registerY = parentObj.memoryWrite((temp_var + parentObj.registerX) & 0xFFFF, parentObj.accumulator);
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerX) > 0xFF) ? 5 : 4;
    },
    //LDY Immediate:
    //0xA0:
    function (parentObj) {
        parentObj.registerY = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.CPUTicks += 2;
    },
    //LDA (Indirect, X):
    //0xA1:
    function (parentObj) {
        var address = (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF;
        address = (0x100 + (address * 0x101)) & 0xFFFF;
        parentObj.accumulator = parentObj.memoryReader[address](parentObj, address);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 6;
    },
    //LDX Immediate:
    //0xA2:
    function (parentObj) {
        parentObj.registerX = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 2;
    },
    //LDY Zero Page:
    //0xA4:
    function (parentObj) {
        parentObj.registerY = parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.CPUTicks += 3;
    },
    //LDA Zero Page:
    //0xA5:
    function (parentObj) {
        parentObj.accumulator = parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 3;
    },
    //LDX Zero Page:
    //0xA6:
    function (parentObj) {
        parentObj.registerX = parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 3;
    },
    //TAY:
    //0xA8:
    function (parentObj) {
        parentObj.registerY = parentObj.accumulator;
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.CPUTicks += 2;
    },
    //LDA Immediate:
    //0xA9:
    function (parentObj) {
        parentObj.accumulator = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 2;
    },
    //TAX:
    //0xAA:
    function (parentObj) {
        parentObj.registerX = parentObj.accumulator;
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.CPUTicks += 2;
    },
    //LDY Absolute:
    //0xAC:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.registerY = parentObj.memoryReader[temp_var](parentObj, temp_var);
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.CPUTicks += 4;
    },
    //LDA Absolute:
    //0xAD:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator = parentObj.memoryRead(temp_var);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //LDX Absolute:
    //0xAE:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.registerX = parentObj.memoryRead(temp_var);
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 4;
    },
    //LAX Absolute (Undocumented LDA + LDX Absolute in one):
    //0xAF:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.registerX = parentObj.accumulator = parentObj.memoryRead(temp_var);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //BCS:
    //0xB0:
    function (parentObj) {
        if (parentObj.FlagCarry) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //LDA (Indirect), Y:
    //0xB1:
    function (parentObj) {
        var address = (0x100 + (parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) * 0x101)) & 0xFFFF;
        var address2 = (address + parentObj.registerY) & 0xFFFF;
        var temp_var = parentObj.memoryReader[address2](parentObj, address2);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.accumulator = temp_var;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += ((address ^ address2) > 0xFF) ? 6 : 5;
    },
    //KIL:
    //0xB2:
    function (parentObj) {
        parentObj.opcodeKILCalled(0xB2);
    },
    //LDA Zero Page, X:
    //0xB5:
    function (parentObj) {
        parentObj.accumulator = parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerX) & 0xFF];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
        parentObj.CPUTicks += 4;
    },
    //LDX Zero Page, Y:
    //0xB6:
    function (parentObj) {
        parentObj.registerX = parentObj.memory[(parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) + parentObj.registerY) & 0xFF];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 4;
    },
    //CLV:
    //0xB8:
    function (parentObj) {
        parentObj.FlagOverflow = false;
        parentObj.CPUTicks += 2;
    },
    //LDA Absolute, Y:
    //0xB9:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerY) > 0xFF) ? 5 : 4;
        parentObj.accumulator = parentObj.memoryRead((temp_var + parentObj.registerY) & 0xFFFF);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //TSX:
    //0xBA:
    function (parentObj) {
        parentObj.registerX = parentObj.stackPointer;
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.CPUTicks += 2;
    },
    //LDY Absolute, X:
    //0xBC:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerX) > 0xFF) ? 5 : 4;
        parentObj.registerY = parentObj.memoryRead((temp_var + parentObj.registerX) & 0xFFFF);
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
    },
    //LDA Absolute, X:
    //0xBD:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerX) > 0xFF) ? 5 : 4;
        parentObj.accumulator = parentObj.memoryRead((temp_var + parentObj.registerX) & 0xFFFF);
        parentObj.FlagNegative = (parentObj.accumulator > 0x7F);
        parentObj.FlagZero = (parentObj.accumulator == 0);
    },
    //LDX Absolute, Y:
    //0xBE:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += (((temp_var & 0xFF) + parentObj.registerY) > 0xFF) ? 5 : 4;
        parentObj.registerX = parentObj.memoryRead((temp_var + parentObj.registerY) & 0xFFFF);
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
    },
    //CPY Immediate:
    //0xC0:
    function (parentObj) {
        var temp_var = parentObj.registerY - parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 2;
    },
    //DOP Immediate:
    //#0xC2:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 2;
    },
    //CPY Zero Page:
    //0xC4:
    function (parentObj) {
        var temp_var = parentObj.registerY - parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 3;
    },
    //INY:
    //0xC8:
    function (parentObj) {
        parentObj.registerY = (parentObj.registerY + 1) & 0xFF;
        parentObj.FlagNegative = (parentObj.registerY > 0x7F);
        parentObj.FlagZero = (parentObj.registerY == 0);
        parentObj.CPUTicks += 2;
    },
    //DEX:
    //0xCA:
    function (parentObj) {
        parentObj.registerX = (parentObj.registerX - 1) & 0xFF;
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 2;
    },
    //CPY Absolute:
    //0xCC:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var = parentObj.registerY - temp_var;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 4;
    },
    //BNE:
    //0xD0:
    function (parentObj) {
        if (!parentObj.FlagZero) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //KIL:
    //0xD2:
    function (parentObj) {
        parentObj.opcodeKILCalled(0xD2);
    },
    //DOP Zero Page, X:
    //#0xD4:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //CLD:
    //0xD8:
    function (parentObj) {
        parentObj.FlagDecimal = 0x20;
        parentObj.CPUTicks += 2;
    },
    //CPX Immediate:
    //0xE0:
    function (parentObj) {
        var temp_var = parentObj.registerX - parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 2;
    },
    //DOP Immediate:
    //#0xE2:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 2;
    },
    //CPX Zero Page:
    //0xE4:
    function (parentObj) {
        var temp_var = parentObj.registerX - parentObj.memory[parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter)];
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 3;
    },
    //INX:
    //0xE8:
    function (parentObj) {
        parentObj.registerX = (parentObj.registerX + 1) & 0xFF;
        parentObj.FlagNegative = (parentObj.registerX > 0x7F);
        parentObj.FlagZero = (parentObj.registerX == 0);
        parentObj.CPUTicks += 2;
    },
    //CPX Absolute:
    //0xEC:
    function (parentObj) {
        var temp_var = parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter);
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var |= parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 8;
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        temp_var = parentObj.registerX - temp_var;
        parentObj.FlagCarry = (temp_var > 0xFF);
        parentObj.FlagNegative = (temp_var > 0x7F);
        parentObj.FlagZero = (temp_var == 0);
        parentObj.CPUTicks += 4;
    },
    //NOP:
    //0xEA:
    function (parentObj) {
        parentObj.CPUTicks += 2;
    },
    //BEQ:
    //0xF0:
    function (parentObj) {
        if (parentObj.FlagZero) {
            parentObj.programCounter = (parentObj.programCounter + ((parentObj.memoryReader[parentObj.programCounter](parentObj, parentObj.programCounter) << 24) >> 24) + 1) & 0xFFFF;
            parentObj.CPUTicks += ((temp_var ^ parentObj.programCounter) > 0xFF) ? 4 : 3;
        }
        else {
            parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
            parentObj.CPUTicks += 2;
        }
    },
    //KIL:
    //0xF2:
    function (parentObj) {
        parentObj.opcodeKILCalled(0xF2);
    },
    //DOP Zero Page, X:
    //#0xF4:
    function (parentObj) {
        parentObj.programCounter = (parentObj.programCounter + 1) & 0xFFFF;
        parentObj.CPUTicks += 4;
    },
    //SED:
    //0xF8:
    function (parentObj) {
        parentObj.FlagDecimal = 0x28;
        parentObj.CPUTicks += 2;
    },
];
Ricoh2A03.prototype.opcodeKILCalled = function (parentObj, opcode) {
    cout("KIL op code "+ opcode + " called, pausing emulation.", 2);
    parentObj.pause();
}
Ricoh2A03.prototype.memoryWriteCompiler = function () {
    //0-0x1FFF;
    this.compileRAMWriteHandler();
    //0x2000-0x3FFF;
    this.compilePPUWriteHandler();
}
Ricoh2A03.prototype.compileRAMWriteHandler = function () {
    var index = 0;
    //Zero Page RAM:
    //Stack RAM:
    //RAM:
    do {
        this.memoryWriter[index++] = this.memoryWriteNormal;
    } while (index < 0x7FF);
    //Populating the 0x800-0x1FFF echo RAM:
    do {
        this.memoryWriter[index++] = this.memoryWriteEcho1;
    } while (index < 0x2000);
}
Ricoh2A03.prototype.compilePPUWriteHandler = function () {
    var index = 0x2000
    while (index < 0x4000) {
        //PPU Control Register 1:
        //0x2000:
        this.memoryWrite[index++] = function (parentObj, address, data) {
            //Bit 7: Vblank IRQ Enable:
            parentObj.PPUVblankIRQ = (data > 0x7F);
            //Bit 6: Not Used?
            //Bit 5: 8x8 - 8x16 Sprite Size Selection:
            parentObj.PPUSpriteDoubleSize = ((data & 0x20) == 0x20);
            //Bit 4: Screen Pattern Table:
            parentObj.PPUBGPatternTablePosition = (data & 0x10) << 8;
            //Bit 3: Screen Pattern Table:
            parentObj.PPUSPRPatternTablePosition = (data & 0x08) << 8;
            //Bit 2: PPU Write Incrementation:
            parentObj.PPUWriteIncrementAmount = ((data & 0x04) == 0x04) ? 0x20 : 1;
            //Bit 1: Name Table Y Scroll:
            parentObj.PPUNameTableYScroll = (data & 0x02) * 120;
            //Bit 0: Name Table X Scroll:
            parentObj.PPUNameTableXScroll = (data & 0x01) << 8;
        };
        //PPU Control Register 2:
        //0x2001:
        this.memoryWrite[index++] = function (parentObj, address, data) {
            //Bits 5-7:
            parentObj.PPUIntensity = data >> 5; //Bit 5=R, Bit 6=B, Bit 7=G
            //Bit 4: Sprite Display (All SPR Pixels):
            parentObj.PPUSPRDisplay = ((data & 0x10) == 0x10);
            //Bit 3: Background Display (All BG Pixels):
            parentObj.PPUBGDisplay = ((data & 0x08) == 0x08);
            //Bit 2: Sprite Mask (8 Left-Most Pixels):
            parentObj.PPUSpriteMask = ((data & 0x04) < 0x04);
            //Bit 1: Image Mask (8 Left-Most Pixels):
            parentObj.PPUImageMask = ((data & 0x02) < 0x02);
            //Bit 0: Disable Composite Colorburst:
            parentObj.PPUNoColor = ((data & 0x01) == 0x01);
        };
        //PPU Status Register:
        //0x2002:
        this.memoryWrite[index++] = this.memoryWriteIgnore;
        //SPR-RAM Address Register:
        //0x2003:
        this.memoryWrite[index++] = function (parentOj, address, data) {
            parentOj.PPUCurrentSpriteAddress = data;
        };
        //SPR-RAM Data Register:
        //0x2004:
        this.memoryWrite[index++] = function (parentOj, address, data) {
            parentOj.SPRRAM[parentOj.PPUCurrentSpriteAddress++] = data;
            parentOj.PPUCurrentSpriteAddress &= 0xFF;
        };
        //PPU Background Scrolling Offset:
        //0x2005:
        this.memoryWrite[index++] = function (parentOj, address, data) {
            if (parentOj.PPUFirstWriteScroll == -1) {
                //Documents say that the first write is not used until the second write:
                parentObj.PPUFirstWriteScroll = data;
                parentOj.PPUFirstWriteVRAM = -1;    //Reset register 0x2006 write buffering.
            }
            else if (data < 240) {
                //Update the internal scrolling variables and reset the buffer:
                parentObj.PPUXScroll = parentObj.PPUFirstWriteScroll;
                parentObj.PPUYScroll = data;
                parentOj.PPUFirstWriteScroll = -1;
            }
        };
        //PPU Memory Address:
        //0x2006:
        this.memoryWrite[index++] = function (parentOj, address, data) {
            if (parentOj.PPUFirstWriteVRAM == -1) {
                //Documents say that the first write is not used until the second write:
                parentObj.PPUFirstWriteVRAM = data;
                parentOj.PPUFirstWriteScroll = -1;  //Reset register 0x2005 write buffering.
            }
            else {
                //Update the internal address variable and reset the buffer:
                parentObj.PPUVRAMAddress = ((parentObj.PPUFirstWriteVRAM & 0x20) << 8) | data;
                parentOj.PPUFirstWriteVRAM = -1;
            }
        };
        //PPU Memory Data:
        //0x2007:
        this.memoryWrite[index++] = function (parentOj, address, data) {
            //Attempt a VRAM write to the PPU:
            parentObj.writePPU[parentObj.PPUVRAMAddress](parentObj, parentObj.PPUVRAMAddress, data);
            parentObj.PPUVRAMAddress = (parentObj.PPUVRAMAddress + parentObj.PPUWriteIncrementAmount) & 0x3FFF;
        };
    }
}
Ricoh2A03.prototype.memoryWriteNormal = function (parentObj, address, data) {
    parentObj.memory[address] = data;
}
Ricoh2A03.prototype.memoryWriteStack = function (parentObj, address, data) {
    parentObj.memory[0x100 | address] = data;
}
Ricoh2A03.prototype.memoryWriteEcho1 = function (parentObj, address, data) {
    parentObj.memory[address & 0x7FF] = data;
}