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ASR (Super FX): Difference between revisions
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'''ASR''' (Arithmetic Shift Right) is a [[Super FX]] instruction that shifts all bits of the [[source register]]'s value to the right one bit while also leaving the most significant bit unchanged, storing the result in the [[destination register]]. Bit 0 is shifted into [[CY]]. | '''ASR''' (Arithmetic Shift Right) is a [[Super FX]] instruction that shifts all bits of the [[source register]]'s value to the right one bit while also leaving the most significant bit unchanged, storing the result in the [[destination register]]. Bit 0 is shifted into [[CY]]. | ||
==== Syntax ==== | |||
<pre> | |||
ASR | |||
</pre> | |||
[[File:gsu_asr.png]] | [[File:gsu_asr.png]] | ||
Revision as of 00:53, 6 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | ROM Speed | RAM Speed | Cache Speed | ||
| Implied (type 1) | 96 | 1 byte | 3 cycles | 3 cycles | 1 cycle | ||
| Flags Affected | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | |||||
ASR (Arithmetic Shift Right) is a Super FX instruction that shifts all bits of the source register's value to the right one bit while also leaving the most significant bit unchanged, storing the result in the destination register. Bit 0 is shifted into CY.
Syntax
ASR
See Also
External Links
- Official Nintendo documentation on ASR: 9.13 on Page 2-9-12 of Book II
- example: page 2-9-13 of Book II, lbid.