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CLD: Difference between revisions
From SnesLab
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* [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/442 page 442] on CLD | * [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/442 page 442] on CLD | ||
* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n141 page 131] on CLD | * [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n141 page 131] on CLD | ||
* [[MCS6500 Manual]] | * 3.3.2 on [[MCS6500 Manual]], [https://archive.org/details/mos_microcomputers_programming_manual/page/n42 page 27] on CLD | ||
* [[Carr]], [https://archive.org/details/6502UsersManual/page/n267 page 254] on CLD | * [[Carr]], [https://archive.org/details/6502UsersManual/page/n267 page 254] on CLD | ||
* [[Leventhal]] page 3-53 on CLD: https://archive.org/details/6502-assembly-language-programming/page/n102 | * [[Leventhal]] page 3-53 on CLD: https://archive.org/details/6502-assembly-language-programming/page/n102 | ||
Revision as of 03:00, 8 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Implied (type 2) | D8 | 1 byte | 2 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | 0 | . | . | . | |
CLD is a 65x instruction that clears the decimal mode flag, switching the processor back into binary mode so ADC and SBC will operate normally.
Syntax
CLD
See Also
External Links
- Eyes & Lichty, page 442 on CLD
- Labiak, page 131 on CLD
- 3.3.2 on MCS6500 Manual, page 27 on CLD
- Carr, page 254 on CLD
- Leventhal page 3-53 on CLD: https://archive.org/details/6502-assembly-language-programming/page/n102
- snes9x implementation of CLD: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1434
- Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.4.1