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SEX (Super FX): Difference between revisions
From SnesLab
(see also LOB) |
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!colspan="8"|Basic Info | !colspan="8"|Basic Info | ||
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!colspan="9"|Flags | !colspan="9"|Flags Affected | ||
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|B | |B | ||
|ALT1 | |[[ALT1]] | ||
|ALT2 | |[[ALT2]] | ||
|O/V | |[[O/V]] | ||
|S | |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. | ||
=== 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: 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 11:20, 21 December 2023
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| 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.
See Also
External Links
- Official Nintendo documentation on SEX: 9.80 on page 2-9-110 of Book II
- example: page 2-9-111, lbid.