We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
ROL: Difference between revisions
From SnesLab
(made basic info table shorter) |
(→See Also: ROL) |
||
| Line 59: | Line 59: | ||
=== See Also === | === See Also === | ||
* [[ROR]] | * [[ROR]] | ||
* [[ROL (Super FX)]] | |||
=== External Links === | === External Links === | ||
Revision as of 17:11, 19 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| accumulator | 2A | 1 byte | 2 cycles | ||||
| absolute | 2E | 3 bytes | 6 cycles | ||||
| direct page | 26 | 2 bytes | 5 cycles | ||||
| absolute indexed by X | 3E | 3 bytes | 7 cycles | ||||
| direct page indexed by X | 36 | 2 bytes | 6 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | ||||
ROL (Rotate Left) is a 65x instruction that rotates a value and the carry flag left one bit. The most significant bit is shifted into the carry flag. The carry flag is shifted into the least significant bit.
See Also
External Links
- Eyes & Lichty page on ROL: https://archive.org/details/0893037893ProgrammingThe65816/page/n516
- Labiak page on ROL: https://archive.org/details/Programming_the_65816/page/n184
- MCS6500 Manual page on ROL: https://archive.org/details/mos_microcomputers_programming_manual/page/n170
- Carr page on ROL: https://archive.org/details/6502UsersManual/page/n282
- Leventhal page on ROL: https://archive.org/details/6502-assembly-language-programming/page/n134
- snes9x implementation of ROL: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1011
- undisbeliever on ROL: https://undisbeliever.net/snesdev/65816-opcodes.html#rol-rotate-left