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PLB: Difference between revisions
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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.<sup>[1][dubious, see [[MVP]] and [[MVN]]]</sup> The [[stack pointer]] is incremented before the byte it points to is pulled into the register. | ||
==== Syntax ==== | ==== Syntax ==== | ||
Revision as of 20:55, 31 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (Pull) | AB | 1 byte | 4 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| N | . | . | . | . | . | Z | . | |
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.[1][dubious, see MVP and MVN] The stack pointer is incremented before the byte it points to is pulled into the register.
Syntax
PLB
See Also
External Links
- Eyes & Lichty page 484, on PLB: https://archive.org/details/0893037893ProgrammingThe65816/page/484
- 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
- Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3