We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

TXA: Difference between revisions

From SnesLab
Jump to: navigation, search
(→‎External Links: page number)
(category transfer instructions)
Line 67: Line 67:
[[Category:ASM]]
[[Category:ASM]]
[[Category:Inherited from 6502]]
[[Category:Inherited from 6502]]
[[Category:Transfer Instructions]]

Revision as of 05:02, 21 November 2023

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 1) 8A 1 byte 2 cycles
Flags Affected
N V M X D I Z C
. . . . . .

TXA is a 65x instruction that transfers the value of the X index register to the accumulator.

Instruction Behavior
8-bit accumulator (m=1) 16-bit accumulator (m=0)
8-bit index registers (x=1) 8 bits are transferred 8 bits are transferred to the low byte of accumulator and high byte of the accumulator is zeroed
16-bit index registers (x=0) 8 bits are transferred 16 bits are transferred

See Also

External Links