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BCS: Difference between revisions
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* [[MCS6500 Manual]] page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | * [[MCS6500 Manual]] page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | ||
* [[Carr]], [https://archive.org/details/6502UsersManual/page/n261 page 248] on BCS | * [[Carr]], [https://archive.org/details/6502UsersManual/page/n261 page 248] on BCS | ||
* [[Leventhal]] | * [[Leventhal]], [https://archive.org/details/6502-assembly-language-programming/page/n93 page 3-44] on BCS | ||
* snes9x implementation of BCS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365 | * snes9x implementation of BCS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365 | ||
Revision as of 22:52, 8 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | B0 | 2 bytes | 2 cycles | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
BCS (Branch if Carry Set) is a 65x instruction that performs a jump if the carry flag is set. An alternate mnemonic is "BGE."
If carry is clear, control simply falls through to the next instruction.
No flags are affected.
Syntax
BCS nearlabel BGE nearlabel
See Also
External Links
- Eyes & Lichty, page 429 on BCS
- Labiak, page 119 on BCS
- MCS6500 Manual page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55
- Carr, page 248 on BCS
- Leventhal, page 3-44 on BCS
- snes9x implementation of BCS: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365