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DIV (SPC700): Difference between revisions
From SnesLab
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'''DIV''' is an [[SPC700]] instruction that divides the value in [[YA]] by the value in the [[X index register]] and stores the quotient in the [[accumulator]] and the remainder in the [[Y index register]]. | '''DIV''' is an [[SPC700]] instruction that divides the value in [[YA]] by the value in the [[X index register]] and stores the quotient in the [[accumulator]] and the remainder in the [[Y index register]]. | ||
DIV is the slowest SPC700 opcode. To divide by a power of two, consider [[LSR]] instead. | DIV is the slowest SPC700 opcode. To divide by a power of two, consider [[LSR (SPC700)|LSR]] instead. | ||
==== Syntax ==== | ==== Syntax ==== | ||
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* Official Super Nintendo development manual on DIV: Table C-13, [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | * Official Super Nintendo development manual on DIV: Table C-13, [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] | ||
* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L426 | * anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L426 | ||
* https://helmet.kafuka.org/bboard/thread.php?id=228 | |||
[[Category:ASM]] | [[Category:ASM]] | ||
Latest revision as of 13:58, 30 July 2024
| Basic Info | |||||||
|---|---|---|---|---|---|---|---|
| Addressing Mode | Opcode | Length | Speed | ||||
| Implied (type 1) | 9E | 1 byte | 12 cycles | ||||
| Flags Affected | |||||||
|---|---|---|---|---|---|---|---|
| N | V | P | B | H | I | Z | C |
| N | V | . | . | H | . | Z | . |
DIV is an SPC700 instruction that divides the value in YA by the value in the X index register and stores the quotient in the accumulator and the remainder in the Y index register.
DIV is the slowest SPC700 opcode. To divide by a power of two, consider LSR instead.
Syntax
DIV
See Also
External Links
- Official Super Nintendo development manual on DIV: Table C-13, Appendix C-8 of Book I
- anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L426
- https://helmet.kafuka.org/bboard/thread.php?id=228