MOS-6502Q Opcodes

Bellow is a list of new and modified opcodes with their binary and function. If an opcode description is not here to specifically state that the opcode collapses register or flag superposition, it can be assumed that it does not. However, if a (non X register indexed instruction would overwrite the value of a register or flag, then superposition would be expected to be overwritten. If an instruction is X register indexed, then in quantum mode, it will operate according to the superposition of the X register.

6502Q New Opcodes

OP	Byte	Mode	Description
HAA	0x02	Implied	Bitwise Hadamard on the Accumulator
HAX	0x03	Implied	Bitwise Hadamard on the X Register
SEN	0x0F	Implied	SEt the Negative flag
PXA	0x12	Implied	Apply a bitwise Pauli X on the Accumulator
PXA	0x13	Implied	Apply a bitwise Pauli X on the X Register
HAC	0x17	Implied	Apply a Hadamard gate on the carry flag
PYA	0x1A	Implied	Apply a bitwise Pauli Y on the Accumulator
PYA	0x1B	Implied	Apply a bitwise Pauli Y on the X Register
CLQ	0x1F	Implied	CLear Quantum mode flag
SEV	0x27	Implied	SEt the oVerflow flag
SEZ	0x2B	Implied	SEt the Zero flag
CLN	0x2F	Implied	CLear the Negative flag
PZA	0x32	Implied	Apply a bitwise Pauli Z on Accumulator
PZA	0x33	Implied	Apply a bitwise Pauli Z on the X Register
RTA	0x3A	Implied	Bitwise quarter rotation on \(\rvert1\rangle\) axis for Accumulator
RTX	0x3B	Implied	Bitwise quarter rotation on \(\rvert1\rangle\) axis for the X Register
SEQ	0x1F	Implied	SEt the Quantum mode flag
RXA	0x42	Implied	Bitwise quarter rotation on X axis for Accumulator
RXX	0x43	Implied	Bitwise quarter rotation on X axis for the X Register
CLZ	0x47	Implied	CLear the Zero flag
RZA	0x5A	Implied	Bitwise quarter rotation on Z axis for Accumulator
RZX	0x5B	Implied	Bitwise quarter rotation on Z axis for the X Register
RZX	0x5B	Implied	Bitwise quarter rotation on Z axis for the X Register
FTA	0x62	Implied	Quantum Fourier Transform on Accumulator
FTX	0x63	Implied	Quantum Fourier Transform on the X register
ADC	0x75	Zero page X addressing	ADd with Carry, Zero Page indexed, will add in superposition if the X register is superposed. Results in the Accumulator and carry flag become entangled with the X register, such that the result of the addition is entangled with the address loaded from in the X register. (Addressing past the zero page loops to the start.
ADC	0x7D	Absolute X addressing	ADd with Carry, Zero Page indexed, will add in superposition if the X register is superposed. Results in the Accumulator and carry flag become entangled with the X register, such that the result of the addition is entangled with the address loaded from in the X register.
TXA	0x8A	Implied	Transfer X register to Accumulator, will maintain superposition of the X register, entangling it to be the same as the Accumulator when measured
TXS	0x9A	Implied	Transfer X register to Stack pointer, will also collapse superposition of the X register
TAY	0xA8	Implied	Transfer Accumulator Y register, will also collapse superposition of the Accumulator
TAX	0x8A	Implied	Transfer Accumulator to X register, will maintain superposition of the Accumulator, entangling it to be the same as the X register when measured
LDA	0xB5	Zero page X addressing	LoaD Accumulator, Zero Page indexed, will load in superposition if the X register is superposed. Results loaded in the Accumulator become entangled with the X register, such that the result of the load is entangled with the address loaded from in the X register. (Addressing past the zero page loops to the start.
LDA	0xBD	Absolute X addressing	LoaD Accumulator, Zero Page indexed, will load in superposition if the X register is superposed. Results loaded in the Accumulator become entangled with the X register, such that the result of the load is entangled with the address loaded from in the X register.
SBC	0xF5	Zero page X addressing	SuBtract with Carry, Zero Page indexed, will subtract in superposition if the X register is superposed. Results in the Accumulator and carry flag become entangled with the X register, such that the result of the addition is entangled with the address loaded from in the X register. (Addressing past the zero page loops to the start.
QZZ	0xF7	Implied	Apply Pauli Z operator to zero flag
QZS	0xFA	Implied	Apply Pauli Z operator to negative flag
QZC	0xFB	Implied	Apply Pauli Z operator to carry flag
SBC	0xFD	Absolute X addressing	SuBtract with Carry, Zero Page indexed, will subtract in superposition if the X register is superposed. Results in the Accumulator and carry flag become entangled with the X register, such that the result of the addition is entangled with the address loaded from in the X register.

6502Q Modified Opcodes

OP	Description
AND	Bitwise AND with the Accumulator, will also collapse the quantum state of the Accumulator
ASL	Arithmetic Shift Left, will also collapse superposition of the carry flag
BIT	The 6502’s test BITs opcodes, will also collapse the superposition of the Accumulator
CMP	CoMPare accumulator. If quantum mode is off, this opcode functions as in the original 6502. If quantum mode is on, and if a flag would be set to 1 in the original system, and if this flag is already on, then this instead flips the phase of the quantum registers, for each such flag.
CPX	CoMPare X register. If quantum mode is off, this opcode functions as in the original 6502. If quantum mode is on, and if a flag would be set to 1 in the original system, and if this flag is already on, then this instead flips the phase of the quantum registers, for each such flag.
EOR	Bitwise EOR with the Accumulator, will also collapse the quantum state of the Accumulator
LSR	Logical Shift Right, will also collapse superposition of the carry flag
ORA	Bitwise OR with the Accumulator, will also collapse the quantum state of the Accumulator
ROL	ROtate Left, will also collapse superposition of the carry flag
STA	STore Accumulator, will also collapse superposition of the Accumulator
STX	STore X register, will also collapse superposition of the X register