We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
BCS: Difference between revisions
From SnesLab
(fall through) |
(→See Also: XCE) |
||
| Line 51: | Line 51: | ||
* [[BVC]] | * [[BVC]] | ||
* [[BVS]] | * [[BVS]] | ||
* [[XCE]] | |||
* [[BCS (Super FX)]] | * [[BCS (Super FX)]] | ||
* [[BGE (Super FX)]] | * [[BGE (Super FX)]] | ||
Revision as of 04:24, 16 July 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: https://archive.org/details/0893037893ProgrammingThe65816/page/429
- Labiak page 119 on BCS: https://archive.org/details/Programming_the_65816/page/n129
- MCS6500 Manual page 40 on BCS: https://archive.org/details/mos_microcomputers_programming_manual/page/n55
- Carr page 248 on BCS: https://archive.org/details/6502UsersManual/page/n261
- Leventhal page 3-44 on BCS: https://archive.org/details/6502-assembly-language-programming/page/n93
- snes9x implementation of BCS:https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1365