We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS
Y Index Register: Difference between revisions
From SnesLab
(added SPC700 ref) |
(→Reference: hid archive URL) |
||
| Line 18: | Line 18: | ||
=== Reference === | === Reference === | ||
* https://archive.org/details/SNESDevManual/book1/page/n182 | * [https://archive.org/details/SNESDevManual/book1/page/n182 page 3-8-4 of Book I] of the official Super Nintendo development manual | ||
[[Category:SNES Hardware]] | [[Category:SNES Hardware]] | ||
Revision as of 06:30, 20 December 2023
The Y Index Register exists on 65x processors and often holds the current index when iterating over things.
On the S-SMP it is always 8 bits wide. On the 65c816, it may be 8 or 16 bits wide.
Unlike the X index register, there are no instructions to transfer value of the stack pointer to/from Y.
See Also
Reference
- page 3-8-4 of Book I of the official Super Nintendo development manual