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BCC: Difference between revisions
From SnesLab
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=== External Links === | === External Links === | ||
* [[Eyes & Lichty]] | * [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/428 page 428] on BCC | ||
* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n128 page 118] on BCC | * [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n128 page 118] on BCC | ||
* [[MCS6500 Manual]] page 40 on BCC: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | * [[MCS6500 Manual]] page 40 on BCC: https://archive.org/details/mos_microcomputers_programming_manual/page/n55 | ||
Revision as of 12:45, 6 August 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | 90 | 2 bytes | 2 cycles* | ||||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
BCC (Branch if Carry Clear) is a 65x instruction that performs a jump if the carry flag is clear. An alternate mnemonic is "BLT."
If carry is set, control simply falls through to the next instruction.
No flags are affected.
Syntax
BCC nearlabel BLT nearlabel
See Also
External Links
- Eyes & Lichty, page 428 on BCC
- Labiak, page 118 on BCC
- MCS6500 Manual page 40 on BCC: https://archive.org/details/mos_microcomputers_programming_manual/page/n55
- Carr page 248 on BCC: https://archive.org/details/6502UsersManual/page/n261
- Leventhal page 3-43 on BCC: https://archive.org/details/6502-assembly-language-programming/page/n92
- snes9x implementation of BCC: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1360