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PLX: Difference between revisions

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'''PLX''' (PulL X) is a 65x instruction that pulls the value at the top of the [[stack]] into the [[X index register]].  PLX increments the [[stack pointer]] before the pull.
'''PLX''' (PulL X) is a 65x instruction that pulls the value at the top of the [[stack]] into the [[X index register]].  PLX increments the [[stack pointer]] before the pull.
The Labiak textbook seems to have omitted the fact that according to the datasheet, PLX affects the [[zero flag]].


===== Cycle Penalty =====
===== Cycle Penalty =====
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[[Category:Pull Instructions]]
[[Category:Pull Instructions]]
[[Category:One-byte Instructions]]
[[Category:One-byte Instructions]]
[[Category:Four-cycle Instructions]]

Latest revision as of 04:11, 19 December 2023

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

PLX (PulL X) is a 65x instruction that pulls the value at the top of the stack into the X index register. PLX increments the stack pointer before the pull.

The Labiak textbook seems to have omitted the fact that according to the datasheet, PLX affects the zero flag.

Cycle Penalty
  • PLX takes one additional cycle if the index registers are 16 bits wide.

See Also

External Links

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