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SEX (Super FX): Difference between revisions

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!colspan="8"|Basic Info
!colspan="8"|Basic Info
|+
|+
|'''Addressing Mode'''
|'''Opcode'''
|'''Opcode'''
|'''Length'''
|'''Length'''
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|'''Cache Speed'''
|'''Cache Speed'''
|+
|+
|[[Implied]]
|95
|95
|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 Clobbered
!colspan="9"|Flags Affected
|+
|+
|B
|[[B Flag|B]]
|[[ALT1]]
|[[ALT1]]
|[[ALT2]]
|[[ALT2]]
|[[O/V]]
|[[O/V]]
|S
|[[Sign Flag|S]]
|[[CY]]
|[[CY]]
|Z
|Z
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|}
|}


'''SEX''' is a [[Super FX]] instruction that performs a sign extension of an 8-bit value.  Bit 7 (the sign of the lower 8 bits) of the source register is copied into all the bits in the high byte of the destination register.  The low byte of the source register is copied directly into the low byte of the destination register.
'''SEX''' is a [[Super FX]] instruction that performs a sign extension of an 8-bit value.  Bit 7 (the sign of the lower 8 bits) of the [[source register]] is copied into all the bits in the high byte of the [[destination register]].  The low byte of the source register is copied directly into the low byte of the destination register.
 
[[File:gsu_sex.png]]


=== See Also ===
=== See Also ===
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=== External Links ===
=== External Links ===
* Official Nintendo documentation on SEX: [https://archive.org/details/SNESDevManual/book2/page/n266 page 2-9-110 of Book II]
* Official Nintendo documentation on SEX: paragraph 9.80 on [https://archive.org/details/SNESDevManual/book2/page/n266 page 2-9-110 of Book II]
 
* example: [https://archive.org/details/SNESDevManual/book2/page/n267 page 2-9-111], lbid.


[[Category:ASM]]
[[Category:ASM]]
[[Category:Super FX]]
[[Category:Super FX]]
[[Category:One-byte Instructions]]

Latest revision as of 00:43, 2 July 2024

Basic Info
Addressing Mode Opcode Length ROM Speed RAM Speed Cache Speed
Implied 95 1 byte 3 cycles 3 cycles 1 cycle
Flags Affected
B ALT1 ALT2 O/V S CY Z
0 0 0 . .

SEX is a Super FX instruction that performs a sign extension of an 8-bit value. Bit 7 (the sign of the lower 8 bits) of the source register is copied into all the bits in the high byte of the destination register. The low byte of the source register is copied directly into the low byte of the destination register.

gsu sex.png

See Also

External Links