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LEA: Difference between revisions
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'''LEA''' is a [[Super FX]] official macro that loads two immediate bytes. It is an alias for [[IWT]]. It stands for "load effective address."<sup>[2]</sup> | '''LEA''' is a [[Super FX]] official macro that loads two immediate bytes into a general register. It is an alias for [[IWT]]. It stands for "load effective address."<sup>[2]</sup> | ||
The [[ALT0]] state is restored. | |||
==== Syntax ==== | ==== Syntax ==== | ||
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=== See Also === | === See Also === | ||
* [[LDA]] | * [[LDA]] | ||
* [[IBT]] | |||
=== External Links === | === External Links === | ||
Latest revision as of 02:12, 16 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 | . | . | . | . | ||
LEA is a Super FX official macro that loads two immediate bytes into a general register. It is an alias for IWT. It stands for "load effective address."[2]
The ALT0 state is restored.
Syntax
LEA Rn, #xx
Example
After executing LEA R3, #4853h:
R3 = 4853h
See Also
External Links
- Official Nintendo documentation on LEA: 9.47 on Page 2-9-67 of Book II
- Table 2-2-2 on page 2-2-8 of Book II, lbid.