Science Quiz / Opcodes on original 6502 processor

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Can you name the machine instructions for the original 6502 processor?

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Score 0/151 Timer 06:00
Add memory to A with carry
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
AND memory with A
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Shift left 1 bit
A 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Branch on carry clear
Relative 
Branch on carry set
Relative 
Branch on result 0
Relative 
Test bits in memory with A
Zero Page 
Absolute 
Branch on result minus
Relative 
Branch on result not 0
Relative 
Branch on result plus
Relative 
Force break
Implied 
Branch on overflow clear
Relative 
Branch on overflow set
Relative 
Clear carry flag
Implied 
Clear decimal mode
Implied 
Clear interrupt disable bit
Implied 
Clear overflow flag
Implied 
Compare memory and A
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Compare memory and X
Immediate 
Zero Page 
Absolute 
Compare memory and Y
Immediate 
Zero Page 
Absolute 
Decrement memory by 1
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Decrement X by 1
Implied 
Decrement Y by 1
Implied 
XOR memory with A
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Increment memory by 1
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Increment X by 1
Implied 
Increment Y by 1
Implied 
Jump to new location
Absolute 
(Indirect) 
Jump to new location saving return address (subroutine)
Absolute 
Load A with memory
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Load X with memory
Immediate 
Zero Page 
Zero Page, Y 
Absolute 
Absolute, Y 
Load Y with memory
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Shift right 1 bit
A 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
No operation
Implied 
OR memory with A
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Push A on stack
Implied 
Push processor status on stack
Implied 
Pull A from stack
Implied 
Pull processor status from stack
Implied 
Rotate 1 bit left
A 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Rotate 1 bit right
A 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Return from interrupt
Implied 
Return from subroutine
Implied 
Subtract memory from A with borrow
Immediate 
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Set carry flag
Implied 
Set decimal mode
Implied 
Set interrupt disable status
Implied 
Store A in memory
Zero Page 
Zero Page, X 
Absolute 
Absolute, X 
Absolute, Y 
(Indirect, X) 
(Indirect), Y 
Store X in memory
Zero Page 
Zero Page, Y 
Absolute 
Store Y in memory
Zero Page 
Zero Page, X 
Absolute 
Transfer A to X
Implied 
Transfer A to Y
Implied 
Transfer stack pointer to X
Implied 
Transfer X to A
Implied 
Transfer X to stack pointer
Implied 
Transfer Y to A
Implied 

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