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CLV: Difference between revisions
From SnesLab
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==== Example ==== | |||
Before [[BRA]], this was a common way to always branch on the 6502: | |||
<pre> | |||
CLV | |||
BVC | |||
</pre> | </pre> | ||
Revision as of 12:31, 15 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Implied (type 2) | B8 | 1 byte | 2 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | 0 | . | . | . | . | . | . | |
CLV is a 65x instruction that clears the overflow flag.
Syntax
CLV
Example
Before BRA, this was a common way to always branch on the 6502:
CLV BVC
See Also
External Links
- Eyes & Lichty page 444, on CLV: https://archive.org/details/0893037893ProgrammingThe65816/page/444
- Labiak page 133 on CLV: https://archive.org/details/Programming_the_65816/page/n143
- MCS6500 Manual page 28 on CLV: https://archive.org/details/mos_microcomputers_programming_manual/page/n43
- Carr page 254 on CLV: https://archive.org/details/6502UsersManual/page/n267
- Leventhal page 3-55 on CLV: https://archive.org/details/6502-assembly-language-programming/page/n104
- snes9x implementation of CLV: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1434