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PHB: Difference between revisions
From SnesLab
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'''PHB''' (PusH data Bank register) is a [[65c816]] instruction that pushes the value of the [[data bank register]] to the [[stack]]. PHB always pushes one byte. | '''PHB''' (PusH data Bank register) is a [[65c816]] instruction that pushes the value of the [[data bank register]] to the [[stack]]. PHB always pushes one byte. The [[stack pointer]] is decremented by one and ends up pointing directly below the byte pushed. | ||
=== See Also === | === See Also === | ||
Revision as of 10:36, 7 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack | 8B | 1 byte | 3 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
PHB (PusH data Bank register) is a 65c816 instruction that pushes the value of the data bank register to the stack. PHB always pushes one byte. The stack pointer is decremented by one and ends up pointing directly below the byte pushed.
See Also
External Links
- Eyes & Lichty page 477, on PHB: https://archive.org/details/0893037893ProgrammingThe65816/page/n503
- Labiak page 161 on PHB: https://archive.org/details/Programming_the_65816/page/n171