UMULT (Super FX): Difference between revisions

Latest revision as of 12:17, 22 December 2023


Basic Info
Opcode	Length	ROM Speed	RAM Speed	Cache Speed
3D8n	2 bytes	6 or 8 cycles	6 or 8 cycles	2 or 3 cycles


Flags Affected
B	ALT1	ALT2	O/V	S	CY	Z
0	0	0	.		.

UMULT is an unsigned multiplication Super FX instruction. The product is stored in the destination register.

UMULT utilizes the 8-bit multiplier only once, so it is fast.^[2]

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-'''UMULT''' is an unsigned multiplication [[Super FX]] instruction.
+{| class="wikitable" style="float:right;clear:right;width:50%"
-{| class="wikitable" style="float:right;clear:right;width:40%"
 !colspan="8"|Basic Info
 |+
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 {| class="wikitable" style="float:right;clear:right;width:30%"
-!colspan="9"|Flags Clobbered
+!colspan="9"|Flags Affected
 |+
 |B
-|ALT1
+|[[ALT1]]
-|ALT2
+|[[ALT2]]
-|O/V
+|[[O/V]]
 |S
-|CY
+|[[CY]]
 |Z
 |+
@@ Line 36: / Line 34: @@
 |
 |}
+'''UMULT''' is an unsigned multiplication [[Super FX]] instruction.  The product is stored in the [[destination register]].
+UMULT utilizes the 8-bit multiplier only once, so it is fast.<sup>[2]</sup>
 === See Also ===
 * [[FMULT]]
+* [[LMULT]]
+* [[MULT]]
+* [[MUL]]
 === External Links ===
-* Official Nintendo documentation on UMULT: https://archive.org/details/SNESDevManual/book2/page/n278
+# Official Nintendo documentation on UMULT: [https://archive.org/details/SNESDevManual/book2/page/n278 Page 2-9-122 of Book II]
+# https://archive.org/details/SNESDevManual/book2/page/n155
 [[Category:ASM]]
 [[Category:Super FX]]
 [[Category:Arithmetic Operation Instructions]]
+[[Category:Two-byte Instructions]]