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PLA: Difference between revisions

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'''PLA''' (PulL Accumulator) is a 65x instruction that pulls the value at the top of the [[stack]] into the [[accumulator]].
'''PLA''' (PulL Accumulator) is a 65x instruction that pulls the value at the top of the [[stack]] into the [[accumulator]]. PLA increments the [[stack pointer]] before the pull.
 
The Eyes & Lichty page on PLA has a typo that says the 65x pull instructions "set" the zero and negative flags; it should say "affect."


===== Cycle Penalty =====
===== Cycle Penalty =====
* PLA takes one additional cycle if the accumulator is 16 bits wide.
* PLA takes one extra cycle if the accumulator is 16 bits wide.


=== See Also ===
=== See Also ===

Latest revision as of 06:11, 19 December 2023

Basic Info
Addressing Mode Opcode Length Speed
Stack (Pull) 68 1 byte 4 cycles*
Flags Affected
N V M X D I Z C
. . . . . .

PLA (PulL Accumulator) is a 65x instruction that pulls the value at the top of the stack into the accumulator. PLA increments the stack pointer before the pull.

The Eyes & Lichty page on PLA has a typo that says the 65x pull instructions "set" the zero and negative flags; it should say "affect."

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

See Also

External Links

Retrieved from "https://sneslab.net/mw/index.php?title=PLA&oldid=12736"