We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
YA (SPC700): Difference between revisions
From SnesLab
(created page) |
(→See Also: MUL, DIV) |
||
(6 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
'''YA''' is a 16-bit [[SPC700]] register who's high byte is the [[Y index register]] and who's low byte is accumulator. | '''YA''' is a virtual 16-bit [[SPC700]] register who's high byte is the [[Y index register]] and who's low byte is accumulator. | ||
[[MOVW]] can be used to read or write all 16 bits of YA in a single instruction. | |||
=== See Also === | |||
* [[ADDW]] | |||
* [[SUBW]] | |||
* [[CMPW]] | |||
* [[MOVW]] | |||
* [[MUL]] | |||
* [[DIV]] | |||
=== Reference === | |||
* [https://archive.org/details/SNESDevManual/book1/page/n226 Appendix C-1 of Book I] of the official Super Nintendo development manual | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:SPC700]] | [[Category:SPC700]] | ||
[[Category:Registers]] |
Latest revision as of 19:30, 24 July 2023
YA is a virtual 16-bit SPC700 register who's high byte is the Y index register and who's low byte is accumulator.
MOVW can be used to read or write all 16 bits of YA in a single instruction.
See Also
Reference
- Appendix C-1 of Book I of the official Super Nintendo development manual