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NOT (Super FX): Difference between revisions

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'''NOT''' is a [[Super FX]] instruction that performs a 1's complement (inversion) of a register value.
{| class="wikitable" style="float:right;clear:right;width:50%"
 
{| class="wikitable" style="float:right;clear:right;width:40%"
!colspan="8"|Basic Info
!colspan="8"|Basic Info
|+
|+
|'''Addressing Mode'''
|'''Opcode'''
|'''Opcode'''
|'''Length'''
|'''Length'''
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|'''Cache Speed'''
|'''Cache Speed'''
|+
|+
|[[Implied]] (type 1)
|4F
|4F
|1 byte
|1 byte
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{| class="wikitable" style="float:right;clear:right;width:30%"
!colspan="9"|Flags Clobbered
!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
|0
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|0
|0
|.
|.
|
|S
|.
|.
|
|Z
|}
|}
'''NOT''' is a [[Super FX]] instruction that calculates the 1's complement of the [[source register]] and stores the inversion in the [[destination register]].
The [[ALT0]] state is restored.
The source and destination registers should be specified in advance using [[WITH]], [[FROM]], or [[TO]].  Otherwise, R<sub>0</sub> serves as the default.
==== Syntax ====
<pre>
NOT
</pre>
==== Example ====
Let:
S<sub>reg</sub> : R<sub>9</sub>
D<sub>reg</sub> : R<sub>13</sub>
R<sub>9</sub> = b764h (1011 0111 0110 0100b)
After executing NOT:
R<sub>13</sub> = 489bh (0100 1000 1001 1011b)
=== See Also ===
* [[XOR (Super FX)]]
* [[OR (Super FX)]]
* [[EOR]]
* [[NOTC]]
=== External Links ===
* Official Nintendo documentation on NOT: 9.69 on [https://archive.org/details/SNESDevManual/book2/page/n252 Page 2-9-96 of Book II]


[[Category:ASM]]
[[Category:ASM]]
[[Category:Super FX]]
[[Category:Super FX]]
[[Category:Logical Operation Instructions]]
[[Category:Logical Operation Instructions]]
[[Category:Expects Sreg/Dreg Prearranged]]

Latest revision as of 19:21, 30 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Implied (type 1) 4F 1 byte 3 cycles 3 cycles 1 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . S . Z

NOT is a Super FX instruction that calculates the 1's complement of the source register and stores the inversion in the destination register.

The ALT0 state is restored.

The source and destination registers should be specified in advance using WITH, FROM, or TO. Otherwise, R0 serves as the default.

Syntax

NOT

Example

Let:

Sreg : R9
Dreg : R13
R9 = b764h (1011 0111 0110 0100b)

After executing NOT:

R13 = 489bh (0100 1000 1001 1011b)

See Also

External Links