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fullsnes: Difference between revisions
From SnesLab
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* In https://problemkaputt.de/fullsnes.htm#snescartridgeromimageinterleave, the worst case scenario can much worse than triple-interleaved or double-mis-de-interleaved - in fact ten interleavings of a normal 320Kbyte file is the identity operation, so in this particular case the worst is quintuple-interleaved. | * In https://problemkaputt.de/fullsnes.htm#snescartridgeromimageinterleave, the worst case scenario can much worse than triple-interleaved or double-mis-de-interleaved - in fact ten interleavings of a normal 320Kbyte file is the identity operation, so in this particular case the worst is quintuple-interleaved. | ||
* "Game Boy" is spelled several times as one word | * "Game Boy" is spelled several times as one word | ||
* In the https://problemkaputt.de/fullsnes.htm#snesapumaincpucommunicationport notes there is a typo: "injumping" | |||
=== External Links === | === External Links === | ||
Revision as of 03:19, 22 June 2023
Fullsnes is a large hardware reference for the SNES created by nocash with several ascii art illustrations.
Errata
- In https://problemkaputt.de/fullsnes.htm#snescartridgecicnotes, the formula for the Polynomial Counter is missing an inversion in the second term.
- In https://problemkaputt.de/fullsnes.htm#snesapuspc700ioports, it could be clearer that bits 0-3 of TnOUT are reset to 0 automatically by hardware after reading - it is not the programmer's responsibility to zero them after reading. [1]
- In https://problemkaputt.de/fullsnes.htm#snesapudspvolumeregisters, MVOL should stand for "main volume," not "master volume" because MVOL does not control the echo volume, and "Main Volume" is how the official docs expand "MVOL." [2]
- In https://problemkaputt.de/fullsnes.htm#snesapublockdiagram, the word "Reverb" is used (the only place this word is used in fullsnes) but should probably say "Echo" instead like the rest of the times this feature is mentioned, as they have slightly different musical meanings.
- In https://problemkaputt.de/fullsnes.htm#snesapudspechoregisters, "bit" should be plural in several places when describing the ESA buffer entry bytes
- In https://problemkaputt.de/fullsnes.htm#snescartridgeromimageinterleave, the worst case scenario can much worse than triple-interleaved or double-mis-de-interleaved - in fact ten interleavings of a normal 320Kbyte file is the identity operation, so in this particular case the worst is quintuple-interleaved.
- "Game Boy" is spelled several times as one word
- In the https://problemkaputt.de/fullsnes.htm#snesapumaincpucommunicationport notes there is a typo: "injumping"
External Links
References
- [1] Page 3-5-2 (NCL PG 11) of Book I of the official Nintendo documentation: "When CN is read, the 4-bit up counter alone is cleared through IC internal timing"
- [2] https://archive.org/details/SNESDevManual/book1/page/n175