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

PLA: Difference between revisions

From SnesLab
Jump to: navigation, search
(increment stack pointer)
(mention E&L typo)
Line 36: Line 36:


'''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.
'''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 =====

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"