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BCS (SPC700): Difference between revisions
From SnesLab
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'''BCS''' is an [[SPC700]] instruction that performs a branch when the [[carry flag]] is set. | '''BCS''' is an [[SPC700]] instruction that performs a branch when the [[carry flag]] is set. If the carry flag is clear, control simply falls through BCS to the next instruction. | ||
No flags are affected. | No flags are affected. | ||
Latest revision as of 15:26, 14 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | B0 | 2 bytes | when condition false: 2 cycles
when condition true: 4 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| . | . | . | . | . | . | . | . |
BCS is an SPC700 instruction that performs a branch when the carry flag is set. If the carry flag is clear, control simply falls through BCS to the next instruction.
No flags are affected.
Syntax
BCS rel
Where rel is a two's complement offset.
See Also
External Links
- Official Super Nintendo development manual on BCS: Table C-15, Appendix C-8 of Book I
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L359