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ROMB (Super FX): Difference between revisions
From SnesLab
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'''ROMB''' is a [[Super FX]] instruction that moves the low byte of the [[source register]] into [[ROMBR]]. | '''ROMB''' is a [[Super FX]] instruction that moves the low byte of the [[source register]] into [[ROMBR]]. | ||
The source register should be specified in advance using [[WITH]] or [[FROM]]. Otherwise, R<sub>0</sub> serves as the default. | |||
==== Syntax ==== | ==== Syntax ==== | ||
Revision as of 18:56, 9 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 3FDF | 2 bytes | 6 cycles | 6 cycles | 2 cycles | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | . | . | . | ||
ROMB is a Super FX instruction that moves the low byte of the source register into ROMBR.
The source register should be specified in advance using WITH or FROM. Otherwise, R0 serves as the default.
Syntax
ROMB
Example
Let:
Sreg : R5 R5 = 0046h
After executing ROMB, the ROMBR becomes 46h.
See Also
External Links
- Official Nintendo documentation on ROMB: 9.75 on Page 2-9-104 of Book II