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PHA: Difference between revisions

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* [[Labiak]] page 160 on PHA: https://archive.org/details/Programming_the_65816/page/n170
* [[Labiak]] page 160 on PHA: https://archive.org/details/Programming_the_65816/page/n170
* [[MCS6500 Manual]] page on PHA: https://archive.org/details/mos_microcomputers_programming_manual/page/n136
* [[MCS6500 Manual]] page on PHA: https://archive.org/details/mos_microcomputers_programming_manual/page/n136
* [[Carr]] page on PHA: https://archive.org/details/6502UsersManual/page/n280
* [[Carr]] page 267 on PHA: https://archive.org/details/6502UsersManual/page/n280
* [[Leventhal]] page 3-81 on PHA: https://archive.org/details/6502-assembly-language-programming/page/n130
* [[Leventhal]] page 3-81 on PHA: https://archive.org/details/6502-assembly-language-programming/page/n130



Revision as of 00:41, 5 December 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