INC (Super FX): Difference between revisions

Latest revision as of 18:47, 30 July 2024


Basic Info
Addressing Mode	Opcode	Length	ROM Speed	RAM Speed	Cache Speed
Implied (type 1)	Dn	1 byte	3 cycles	3 cycles	1 cycle


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

INC is a Super FX instruction that increments a register by one. Any register from R₀ to R₁₄ can serve as the operand.

The ALT0 state is restored.

INC Rn

Let:

R₁₂ = 65b1h

After executing INC R₁₂:

R₁₂ = 65b2h

@@ Line 1: / Line 1: @@
-{| class="wikitable" style="float:right;clear:right;width:40%"
+{| class="wikitable" style="float:right;clear:right;width:50%"
 !colspan="8"|Basic Info
 |+
+|'''Addressing Mode'''
 |'''Opcode'''
 |'''Length'''
@@ Line 8: / Line 9: @@
 |'''Cache Speed'''
 |+
+|[[Implied]] (type 1)
 |Dn
 |1 byte
@@ Line 18: / Line 20: @@
 !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]]
 |+
 |0
@@ Line 30: / Line 32: @@
 |0
 |.
-|
+|S
 |.
-|
+|Z
 |}
-'''INC''' is a [[Super FX]] instruction that increments a register.
+'''INC''' is a [[Super FX]] instruction that increments a register by one.  Any register from R<sub>0</sub> to R<sub>14</sub> can serve as the operand.
+The [[ALT0]] state is restored.
+==== Syntax ====
+<pre>
+INC Rn
+</pre>
+==== Example ====
+Let:
+ R<sub>12</sub> = 65b1h
+After executing INC R<sub>12</sub>:
+ R<sub>12</sub> = 65b2h
 === See Also ===
 * [[DEC (Super FX)]]
+* [[INC]]
+* [[INC (SPC700)]]
+* [[INX]]
+* [[INY]]
 === External Links ===
-* Official Nintendo documentation on INC: [https://archive.org/details/SNESDevManual/book2/page/n217 Page 2-9-61 of Book II]
+* Official Nintendo documentation on INC: 9.42 on [https://archive.org/details/SNESDevManual/book2/page/n217 Page 2-9-61 of Book II]
 [[Category:ASM]]
 [[Category:Super FX]]
 [[Category:Arithmetic Operation Instructions]]
+[[Category:One-byte Instructions]]