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LDW (Super FX): Difference between revisions
From SnesLab
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where m can be from 0~11 | where m can be from 0~11 | ||
==== Example ==== | |||
Let: | |||
D<sub>reg</sub> : R<sub>5</sub> | |||
R<sub>3</sub> = 6480h | |||
(70:6480h) = C0h | |||
RAMBR = 70h | |||
After executing LDW (R<sub>3</sub>): | |||
R<sub>5</sub> = C02eh | |||
=== See Also === | === See Also === | ||
Revision as of 22:22, 8 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied Indirect | 4m | 1 byte | 10 cycles | 12 cycles | 7 cycles | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
LDW (Load Word) is a Super FX instruction that loads one word from the Game Pak into the destination register.
Syntax
LDW (Rm)
where m can be from 0~11
Example
Let:
Dreg : R5 R3 = 6480h (70:6480h) = C0h RAMBR = 70h
After executing LDW (R3):
R5 = C02eh
See Also
External Links
- Official Super Nintendo development manual on LDW: 9.46 on Page 2-9-66 of Book II