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

PHA: Difference between revisions

From SnesLab
Jump to: navigation, search
(→‎External Links: Labiak page number)
Line 58: Line 58:
[[Category:Inherited from 6502]]
[[Category:Inherited from 6502]]
[[Category:Push Instructions]]
[[Category:Push Instructions]]
[[Category:One-byte Instructions]]

Revision as of 06:29, 28 November 2023

Basic Info
Addressing Mode Opcode Length Speed
Stack (Push) 48 1 byte 3 cycles*
Flags Affected
N V M X D I Z C
. . . . . . . .

PHA (PusH Accumulator) is a 65x instruction that pushes the accumulator to the stack. If the accumulator is 16 bits wide, the high byte is pushed first.

Cycle Penalty
  • PHA takes one extra cycle if the accumulator is 16 bits wide.

See Also

External Links