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BLT (Super FX): Difference between revisions
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!colspan="8"|Basic Info | !colspan="8"|Basic Info | ||
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!colspan="9"|Flags | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|B | |B | ||
|ALT1 | |[[ALT1]] | ||
|ALT2 | |[[ALT2]] | ||
|O/V | |[[O/V]] | ||
|S | |S | ||
|CY | |[[CY]] | ||
|Z | |Z | ||
|+ | |+ | ||
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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). | |||
According to [[fullsnes]], the official documentation has BLT exchanged with [[BGE]]. <sup>[2]</sup> | |||
=== See also === | === See also === | ||
* [[BGE]] | * [[BGE]] | ||
* [[BCC]] | * [[BCC (Super FX)]] | ||
=== External Links === | |||
# Official Nintendo documentation on BLT: [https://archive.org/details/SNESDevManual/book2/page/n180 Page 2-9-24 of Book II] | |||
# https://problemkaputt.de/fullsnes.htm#snescartgsuncpumisc | |||
# example: [https://archive.org/details/SNESDevManual/book2/page/n181 page 2-9-25], lbid. | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
[[Category:GSU Control Instructions]] | [[Category:GSU Control Instructions]] | ||
Latest revision as of 01:11, 11 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| 06 | 2 bytes | 6 cycles | 6 cycles | 2 cycles | |||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
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]
See also
External Links
- Official Nintendo documentation on BLT: Page 2-9-24 of Book II
- https://problemkaputt.de/fullsnes.htm#snescartgsuncpumisc
- example: page 2-9-25, lbid.