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BPL: Difference between revisions
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* [[Carr]] page on BPL: https://archive.org/details/6502UsersManual/page/n264 | * [[Carr]] page on BPL: https://archive.org/details/6502UsersManual/page/n264 | ||
* [[Leventhal]] page on BPL: https://archive.org/details/6502-assembly-language-programming/page/n97 | * [[Leventhal]] page on BPL: https://archive.org/details/6502-assembly-language-programming/page/n97 | ||
* snes9x implementation of BPL: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1385 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Inherited from 6502]] | [[Category:Inherited from 6502]] | ||
Revision as of 20:53, 17 May 2023
BPL (Branch if PLus) is a 65x instruction that performs a jump if the negative flag is clear. Note that zero is considered positive in the 65x architecture, so this instruction's behavior might be more accurately be described as "branch if non-negative."
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| relative | 10 | 2 byte | 3 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
See Also
External Links
- Eyes & Lichty page on BPL: https://archive.org/details/0893037893ProgrammingThe65816/page/n460
- Labiak page on BPL: https://archive.org/details/Programming_the_65816/page/n133
- MCS6500 Manual page on BPL: https://archive.org/details/mos_microcomputers_programming_manual/page/n55
- Carr page on BPL: https://archive.org/details/6502UsersManual/page/n264
- Leventhal page on BPL: https://archive.org/details/6502-assembly-language-programming/page/n97
- snes9x implementation of BPL: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1385