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CLC: Difference between revisions

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* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n140 page 130] on CLC
* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n140 page 130] on CLC
* [[MCS6500 Manual]] page 25 on CLC: https://archive.org/details/mos_microcomputers_programming_manual/page/n40
* [[MCS6500 Manual]] page 25 on CLC: https://archive.org/details/mos_microcomputers_programming_manual/page/n40
* [[Carr]] page 253 on CLC: https://archive.org/details/6502UsersManual/page/n266
* [[Carr]], [https://archive.org/details/6502UsersManual/page/n266 page 253] on CLC
* [[Leventhal]] page 3-52 on CLC: https://archive.org/details/6502-assembly-language-programming/page/n101
* [[Leventhal]] page 3-52 on CLC: https://archive.org/details/6502-assembly-language-programming/page/n101
* snes9x implementation of CLC: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1420
* snes9x implementation of CLC: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1420

Revision as of 13:26, 6 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 2) 18 1 byte 2 cycles
Flags Affected
N V M X D I Z C
. . . . . . . 0

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.

Syntax

CLC

One of the first instructions a SNES game runs after coming out of reset is often a CLC so that XCE can switch to native mode.

See Also

External Links