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PLB: Difference between revisions
From SnesLab
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'''PLB''' (PulL data Bank) is a [[65c816]] instruction that pulls the byte at the top of the [[stack]] into the [[data bank register]]. PLB is the only instruction that modifies that register. | '''PLB''' (PulL data Bank) is a [[65c816]] instruction that pulls the byte at the top of the [[stack]] into the [[data bank register]]. PLB is the only instruction that modifies that register. The [[stack pointer]] is incremented before the byte it points is pulled into the register. | ||
=== See Also === | === See Also === | ||
Revision as of 10:43, 7 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (Pull) | AB | 1 byte | 4 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | |||
PLB (PulL data Bank) is a 65c816 instruction that pulls the byte at the top of the stack into the data bank register. PLB is the only instruction that modifies that register. The stack pointer is incremented before the byte it points is pulled into the register.
See Also
External Links
- Eyes & Lichty page 484, on PLB: https://archive.org/details/0893037893ProgrammingThe65816/page/n510
- Labiak page 168 on PLB: https://archive.org/details/Programming_the_65816/page/n178
- snes9x implementation of PLB: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L2032