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SEX (Super FX): Difference between revisions
From SnesLab
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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 === | ||
Revision as of 18:06, 30 June 2024
| 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.