We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
IWT (Super FX): Difference between revisions
From SnesLab
(added syntax) |
(added example) |
||
| Line 43: | Line 43: | ||
IWT Rn, #xx | IWT Rn, #xx | ||
</pre> | </pre> | ||
==== Example ==== | |||
When: | |||
IWT R<sub>0</sub>, #4583h | |||
is executed: | |||
R<sub>0</sub> = 4583h | |||
=== Trivia === | === Trivia === | ||
Revision as of 22:10, 8 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Immediate | Fnxxxx | 3 bytes | 9 cycles | 9 cycles | 3 cycle | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
IWT (Immediate Word Data?) is a Super FX instruction that loads two immediate bytes into a register. Any register from R0 to R15 may be specified.
Syntax
IWT Rn, #xx
Example
When:
IWT R0, #4583h
is executed:
R0 = 4583h
Trivia
The official Super Nintendo development manual mispells the mnemonic as "ITW" in the opcode diagram.[1] The low byte of the immediate value is loaded before the high byte.
See Also
External Links
- Official Nintendo documentation on IWT: 9.43 on Page 2-9-62 of Book II