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PEA: Difference between revisions
From SnesLab
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[[Category:65c816 additions]] | [[Category:65c816 additions]] | ||
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[[Category:Five-cycle Instructions]] | |||
Revision as of 12:28, 14 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (absolute) | F4 | 3 bytes | 5 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
PEA (Push Effective Address) is a 65c816 instruction that pushes a 16-bit value to the stack. This value need not actually be an address. The stack pointer is decremented by two.
See Also
External Links
- Eyes & Lichty page 473, on PEA: https://archive.org/details/0893037893ProgrammingThe65816/page/n499
- Labiak page 157 on PEA: https://archive.org/details/Programming_the_65816/page/n167
- snes9x implementation of PEA: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1631
- undisbeliever on PEA: https://undisbeliever.net/snesdev/65816-opcodes.html#pea-push-effective-absolute-address