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PHD: Difference between revisions
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=== External Links === | === External Links === | ||
* [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/478 page 478] on PHD | * [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/478 page 478] on PHD | ||
* [[Labiak]] | * [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n172 page 162] on PHD | ||
* 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 | ||
* Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3 | * Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3 | ||
Revision as of 19:30, 6 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (Push) | 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.
No flags are affected.
Syntax
PHD
See Also
External Links
- Eyes & Lichty, page 478 on PHD
- Labiak, page 162 on PHD
- snes9x implementation of PHD: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1786
- Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3