We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
PHX: Difference between revisions
From SnesLab
(cycle penalty) |
(→See Also: PHA) |
||
| Line 42: | Line 42: | ||
=== See Also === | === See Also === | ||
* [[PHY]] | * [[PHY]] | ||
* [[PHA]] | |||
* [[PLX]] | * [[PLX]] | ||
Revision as of 00:06, 27 November 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (Push) | DA | 1 byte | 3 cycles* | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
PHX is a 65c816 instruction that pushes the value of the X index register onto the stack.
Cycle Penalty
- PHX takes one additional cycle if the index registers are 16 bits wide.
See Also
External Links
- Eyes & Lichty page 481, on PHX: https://archive.org/details/0893037893ProgrammingThe65816/page/n507
- Labiak page on PHX: https://archive.org/details/Programming_the_65816/page/n175
- snes9x implementation of PHX: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1878