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DIV2 (Super FX): Difference between revisions
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=== External Links === | === External Links === | ||
* Official Nintendo documentation on DIV2: https://archive.org/details/SNESDevManual/book2/page/n200 | * Official Nintendo documentation on DIV2: [https://archive.org/details/SNESDevManual/book2/page/n200 Page 2-9-44 of Book II] | ||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Super FX]] | [[Category:Super FX]] | ||
[[Category:Arithmetic Operation Instructions]] | [[Category:Arithmetic Operation Instructions]] | ||
Revision as of 23:12, 6 July 2023
DIV2 (DIVide by 2) is a Super FX instruction that shifts a register's bits one place to the right while also leaving the most significant bit unchanged. Unlike ASR, the output becomes zero if the input is 0xFFFF.
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Opcode | Length | ROM Speed | RAM Speed | Cache Speed | |||
| 3D96 | 2 bytes | 6 cycles | 6 cycles | 2 cycles | |||
| Flags Clobbered | ||||||||
|---|---|---|---|---|---|---|---|---|
| B | ALT1 | ALT2 | O/V | S | CY | Z | ||
| 0 | 0 | 0 | . | |||||
See Also
External Links
- Official Nintendo documentation on DIV2: Page 2-9-44 of Book II