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PHD: Difference between revisions
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!colspan="9"|Flags Affected | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|N | |[[Negative Flag|N]] | ||
|V | |[[Overflow Flag|V]] | ||
|M | |[[M Flag|M]] | ||
|X | |[[X Flag|X]] | ||
|D | |[[Decimal Flag|D]] | ||
|I | |[[I Flag|I]] | ||
|Z | |[[Zero Flag|Z]] | ||
|C | |[[Carry Flag|C]] | ||
|+ | |+ | ||
|. | |. | ||
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'''PHD''' (PusH Direct Page) is a [[65c816]] instruction that pushes the value of the [[direct page register]] onto the [[stack]]. | '''PHD''' (PusH Direct Page) is a [[65c816]] instruction that pushes the value of the [[direct page register]] onto the [[stack]]. The high byte is pushed before the low byte. The [[stack pointer]] is decremented by two. | ||
=== See Also === | === See Also === | ||
* [[PLD]] | * [[PLD]] | ||
* [[PHB]] | * [[PHB]] | ||
* [[TDC]] | |||
* [[PHK]] | * [[PHK]] | ||
=== External Links === | === External Links === | ||
* [[Eyes & Lichty]] page on PHD: https://archive.org/details/0893037893ProgrammingThe65816/page/n504 | * [[Eyes & Lichty]] page 478, on PHD: https://archive.org/details/0893037893ProgrammingThe65816/page/n504 | ||
* [[Labiak]] page on PHD: https://archive.org/details/Programming_the_65816/page/n172 | * [[Labiak]] page 162 on PHD: https://archive.org/details/Programming_the_65816/page/n172 | ||
* snes9x implementation of PHD: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1786 | * snes9x implementation of PHD: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1786 | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:65c816 additions]] | [[Category:65c816 additions]] | ||
[[Category:One-byte Instructions]] | |||
[[Category:Four-cycle Instructions]] | |||
Latest revision as of 12:04, 14 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack | 0B | 1 byte | 4 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
PHD (PusH Direct Page) is a 65c816 instruction that pushes the value of the direct page register onto the stack. The high byte is pushed before the low byte. The stack pointer is decremented by two.
See Also
External Links
- Eyes & Lichty page 478, on PHD: https://archive.org/details/0893037893ProgrammingThe65816/page/n504
- Labiak page 162 on PHD: https://archive.org/details/Programming_the_65816/page/n172
- snes9x implementation of PHD: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1786