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BNE (SPC700): Difference between revisions
From SnesLab
(2 byte Instructions) |
(→Syntax: two's complement offset) |
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|'''Speed''' | |'''Speed''' | ||
|+ | |+ | ||
| | |[[Program Counter Relative]] | ||
|D0 | |D0 | ||
|2 bytes | |2 bytes | ||
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'''BNE''' is an [[SPC700]] instruction that performs a branch when the zero flag is clear. When the zero flag is set, nothing happens. | '''BNE''' is an [[SPC700]] instruction that performs a branch when the [[zero flag]] is clear. When the zero flag is set, nothing happens. | ||
No flags are affected. | |||
==== Syntax ==== | |||
<pre> | |||
BNE rel | |||
</pre> | |||
Where rel is a two's complement offset. | |||
=== See Also === | === See Also === | ||
| Line 43: | Line 52: | ||
=== External Links === | === External Links === | ||
* Official Super Nintendo development manual on BNE: [https://archive.org/details/SNESDevManual/book1/page/ | * Official Super Nintendo development manual on BNE: Table C-15, [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | ||
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L362 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
Latest revision as of 21:56, 4 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | D0 | 2 bytes | when condition false: 2 cycles
when condition true: 4 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
BNE is an SPC700 instruction that performs a branch when the zero flag is clear. When the zero flag is set, nothing happens.
No flags are affected.
Syntax
BNE rel
Where rel is a two's complement offset.
See Also
External Links
- Official Super Nintendo development manual on BNE: Table C-15, Appendix C-8 of Book I
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L362