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PHB: Difference between revisions
From SnesLab
(works in 6502 emulation mode) |
(→External Links: hid archive URL on Labiak) |
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=== External Links === | === External Links === | ||
# [[Eyes & Lichty]] page 477, on PHB: https://archive.org/details/0893037893ProgrammingThe65816/page/477 | # [[Eyes & Lichty]] page 477, on PHB: https://archive.org/details/0893037893ProgrammingThe65816/page/477 | ||
# [[Labiak]] | # [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n171 page 161] on PHB | ||
# Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3 | # Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3 | ||
# section 7.8.2 of 65c816 datasheet | # section 7.8.2 of 65c816 datasheet | ||
Revision as of 19:26, 6 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Stack (Push) | 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.
No flags are affected.
Syntax
PHB
PHB works even in emulation mode even though all bank addresses are forced to zero.[4]
See Also
External Links
- Eyes & Lichty page 477, on PHB: https://archive.org/details/0893037893ProgrammingThe65816/page/477
- Labiak, page 161 on PHB
- Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.8.3
- section 7.8.2 of 65c816 datasheet