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IWT (Super FX): Difference between revisions
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'''IWT''' (Immediate Word Data?) is a [[Super FX]] instruction that loads two immediate bytes into a register. Any register from R<sub>0</sub> to R<sub>15</sub> may be specified. | '''IWT''' (Immediate Word Data?) is a [[Super FX]] instruction that loads two immediate bytes into a register. Any register from R<sub>0</sub> to R<sub>15</sub> may be specified. | ||
==== Syntax ==== | |||
<pre> | |||
IWT Rn, #xx | |||
</pre> | |||
=== Trivia === | === Trivia === | ||
Revision as of 01:36, 4 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
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