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Absolute Boolean Bit Addressing: Difference between revisions
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=== Reference === | === Reference === | ||
* [https://archive.org/details/SNESDevManual/book1/page/n186 page 3-8-8 of Book I] of the official Super Nintendo development manual | * [https://archive.org/details/SNESDevManual/book1/page/n186 page 3-8-8 of Book I] of the official Super Nintendo development manual | ||
* Figure 3-8-3 on [https://archive.org/details/SNESDevManual/book1/page/n187 page 3-8-9], lbid. | |||
[[Category:ASM]] | [[Category:ASM]] | ||
[[Category:Addressing Modes]] | [[Category:Addressing Modes]] | ||
[[Category:Scene Slang]] | [[Category:Scene Slang]] | ||
Revision as of 07:37, 18 December 2023
Absolute Boolean Bit is used on the SPC700 by some instructions to address individual bits:
The bottom 13 bits of a 16-bit value specify an absolute address, while the top 3 bits specify which bit within the byte stored at that address. The greatest address these instructions can affect is 1FFFh.
See Also
Reference
- page 3-8-8 of Book I of the official Super Nintendo development manual
- Figure 3-8-3 on page 3-8-9, lbid.