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BLT (Super FX): Difference between revisions
From SnesLab
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BLT e | BLT e | ||
</pre> | |||
==== Example ==== | |||
Let the sign flag be set and the overflow flag clear. This instruction jumps the program forward 4 bytes: | |||
<pre> | |||
BLT $+4h | |||
</pre> | </pre> | ||
Revision as of 20:22, 10 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | 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 | ||
| . | . | . | . | . | . | . | ||
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]
No flags are affected.
Syntax
BLT e
Example
Let the sign flag be set and the overflow flag clear. This instruction jumps the program forward 4 bytes:
BLT $+4h
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.