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BLT (Super FX): Difference between revisions
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'''BLT''' (Branch if Less Than ) is a [[Super FX]] opcode that performs a jump if the [[negative flag]] is unequal to the [[O/V]] flag, effectively checking for a signed less-than comparison (compare [[BCC]] which is an unsigned less-than comparison). | '''BLT''' (Branch if Less Than ) is a [[Super FX]] opcode that performs a jump if the [[negative flag]] is unequal to the [[O/V]] flag, effectively checking for a signed less-than comparison (compare [[BCC]] which is an unsigned less-than comparison). | ||
According to [[fullsnes]], the official documentation has BLT exchanged with [[BGE]]. [2] | |||
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=== External Links === | === External Links === | ||
* Official Nintendo documentation on BLT: https://archive.org/details/SNESDevManual/book2/page/n180 | * Official Nintendo documentation on BLT: https://archive.org/details/SNESDevManual/book2/page/n180 | ||
* [2] https://problemkaputt.de/fullsnes.htm#snescartgsuncpumisc | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
[[Category:GSU Control Instructions]] | [[Category:GSU Control Instructions]] | ||
Revision as of 06:35, 25 May 2023
BLT (Branch if Less Than ) is a Super FX opcode that performs a jump if the negative flag is unequal to the O/V flag, effectively checking for a signed less-than comparison (compare BCC which is an unsigned less-than comparison).
According to fullsnes, the official documentation has BLT exchanged with BGE. [2]
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| 06 | 2 bytes | 6 cycles | 6 cycles | 2 cycles | |||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
See also
External Links
- Official Nintendo documentation on BLT: https://archive.org/details/SNESDevManual/book2/page/n180
- [2] https://problemkaputt.de/fullsnes.htm#snescartgsuncpumisc