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BCC: Difference between revisions
From SnesLab
(no flags affected) |
(asterisk for cycle penalties) |
||
| Line 10: | Line 10: | ||
|90 | |90 | ||
|2 byte | |2 byte | ||
|2 cycles | |2 cycles* | ||
|} | |} | ||
Revision as of 21:54, 6 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Program Counter Relative | 90 | 2 byte | 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."
No flags are affected.
Syntax
BCC nearlabel BLT nearlabel
See Also
External Links
- Eyes & Lichty page 428, on BCC: https://archive.org/details/0893037893ProgrammingThe65816/page/n454
- Labiak page 118 on BCC: https://archive.org/details/Programming_the_65816/page/n128
- 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