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TO (Super FX): Difference between revisions
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!colspan="8"|Basic Info | !colspan="8"|Basic Info | ||
|+ | |+ | ||
|'''Addressing Mode''' | |||
|'''Opcode''' | |'''Opcode''' | ||
|'''Length''' | |'''Length''' | ||
| Line 8: | Line 9: | ||
|'''Cache Speed''' | |'''Cache Speed''' | ||
|+ | |+ | ||
|[[Implied]] (type 1) | |||
|1n | |1n | ||
|1 byte | |1 byte | ||
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{| class="wikitable" style="float:right;clear:right;width:30%" | {| class="wikitable" style="float:right;clear:right;width:30%" | ||
!colspan="9"|Flags | !colspan="9"|Flags Affected | ||
|+ | |+ | ||
|B | |[[B Flag|B]] | ||
|ALT1 | |[[ALT1]] | ||
|ALT2 | |[[ALT2]] | ||
|O/V | |[[O/V]] | ||
|S | |[[Sign Flag|S]] | ||
|CY | |[[CY]] | ||
|Z | |[[Zero Flag|Z]] | ||
|+ | |+ | ||
|. | |. | ||
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|} | |} | ||
'''TO''' is a [[Super FX]] register prefix instruction that specifies the [[destination register]]. | '''TO''' is a [[Super FX]] register prefix instruction that specifies the [[destination register]]. Any register from R<sub>0</sub> to R<sub>15</sub> can be specified. The exception is when the [[B Flag]] is set (i.e. a [[WITH]] instruction is executed immediately before) in which case a [[MOVE]] is executed instead with WITH acting as the source and TO as the destination. | ||
No flags are affected. | |||
==== Syntax ==== | |||
<pre> | |||
TO Rn | |||
</pre> | |||
==== Example ==== | |||
Let: | |||
R<sub>6</sub> = 7106h | |||
R<sub>3</sub> = 0028h | |||
After executing this program: | |||
FROM R<sub>6</sub> | |||
TO R<sub>4</sub> | |||
ADD R<sub>3</sub> | |||
We have: | |||
R<sub>4</sub> = 712eh | |||
=== See Also === | === See Also === | ||
* [[FROM]] | * [[FROM (Super FX)]] | ||
* [[WITH]] | * [[WITH (Super FX)]] | ||
* [[MOVE (Super FX)]] | |||
=== External Links === | === External Links === | ||
* Official Nintendo documentation on TO: [https://archive.org/details/SNESDevManual/book2/page/n277 page 2-9-121 of Book II] | * Official Nintendo documentation on TO: 9.89 on [https://archive.org/details/SNESDevManual/book2/page/n277 page 2-9-121 of Book II] | ||
* Official Nintendo documentation on Register Prefixes: [https://archive.org/details/SNESDevManual/book2/page/n129 page 2-6-7 of Book II] | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
[[Category:Register Prefix Instructions]] | [[Category:Register Prefix Instructions]] | ||
[[Category:One-byte Instructions]] | |||
Latest revision as of 20:59, 12 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 1n | 1 byte | 3 cycles | 3 cycles | 1 cycle | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| . | . | . | . | . | . | . | ||
TO is a Super FX register prefix instruction that specifies the destination register. Any register from R0 to R15 can be specified. The exception is when the B Flag is set (i.e. a WITH instruction is executed immediately before) in which case a MOVE is executed instead with WITH acting as the source and TO as the destination.
No flags are affected.
Syntax
TO Rn
Example
Let:
R6 = 7106h R3 = 0028h
After executing this program:
FROM R6 TO R4 ADD R3
We have:
R4 = 712eh
See Also
External Links
- Official Nintendo documentation on TO: 9.89 on page 2-9-121 of Book II
- Official Nintendo documentation on Register Prefixes: page 2-6-7 of Book II