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CLC: Difference between revisions
From SnesLab
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* [[Eyes & Lichty]] page on CLC: https://archive.org/details/0893037893ProgrammingThe65816/page/n467 | * [[Eyes & Lichty]] page on CLC: https://archive.org/details/0893037893ProgrammingThe65816/page/n467 | ||
* [[Labiak]] page on CLC: https://archive.org/details/Programming_the_65816/page/n140 | * [[Labiak]] page on CLC: https://archive.org/details/Programming_the_65816/page/n140 | ||
* [[MCS6500 Manual]] page on CLC: https://archive.org/details/mos_microcomputers_programming_manual/page/n40 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
Revision as of 03:38, 16 May 2023
CLC is a 65x instruction that clears the carry flag.
The 6502 lacks an add-without-carry instruction, so it is important to make sure the carry flag is clear before doing an ADC or else the sum will be one too great.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| implied | 18 | 1 byte | 2 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | 0 | |