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PUSH (SPC700): Difference between revisions
From SnesLab
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|'''Speed''' | |'''Speed''' | ||
|+ | |+ | ||
| | |[[Accumulator Addressing | Accumulator]] | ||
|2D | |2D | ||
|1 byte | |1 byte | ||
|4 cycles | |4 cycles | ||
|+ | |+ | ||
| | |[[Stack Addressing]] | ||
|4D | |4D | ||
|1 byte | |1 byte | ||
|4 cycles | |4 cycles | ||
|+ | |+ | ||
| | |[[Stack Addressing]] | ||
|6D | |6D | ||
|1 byte | |1 byte | ||
Revision as of 17:53, 23 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Accumulator | 2D | 1 byte | 4 cycles | ||||
| Stack Addressing | 4D | 1 byte | 4 cycles | ||||
| Stack Addressing | 6D | 1 byte | 4 cycles | ||||
| 0D | 1 byte | 4 cycles | |||||
| Flags Clobbered | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
PUSH is an SPC700 command that pushes the value of a register to the stack. The register can be:
- the accumulator
- the X index register
- the Y index register
- the program status word
See Also
References
- Appendix C-9 of Book I of the official Super Nintendo development manual