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BPL: Difference between revisions
From SnesLab
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=== See Also === | === See Also === | ||
* [[BNE]] | * [[BNE]] | ||
* [[BPL (SPC700)]] | |||
* [[BPL (Super FX)]] | |||
=== External Links === | === External Links === | ||
Revision as of 21:35, 16 July 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| relative | 10 | 2 byte | 3 cycles | ||||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| N | V | M | X | D | I | Z | C | |
| . | . | . | . | . | . | . | . | |
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."
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