nesdev.org

Oh, joy! I can't read it at all. I even tried BSNES's source code but I still got nothing out of it. Oh well! Anyway, here is another question: How does offset-per-tile mode work (particularly mode 6, although I presume that mode 2 is the same)? I know that you specify locations with layer 3 registe...

Ah, thank you! Also, I would have but I don't know much C/C++ and since I can't find anything in x86 I'd have to use a disassembler which would take even longer since it would not only be unlikely for it to be disorganized, due to the way compilers work but it would also have a lot of junk bytes (if...

I know how to calculate what you think I'm trying to calculate. What I'm actually trying to calculate is the length of H-blank and V-blank (in cycles). I am not trying to calculate the length of each scanline, pixel or whatever. I know that H-blank and V-blank are not overscan, so my previous number...

The NES's V-blank is 6810 Ricoh 5A22 master cycles. I still need to know if that's consistent with the SNES's V-blank and what it would be for H-blank. (Also, this means that overscan is not part of H/V-blank.) And now, for another question: Would using an indirect long mode that uses $2180 as its d...

I thought that the pixels outside of the visible scanline counted as H-blank and the scanlines outside of the actual viewing range were counted as V-blank. Again, correct me if I'm wrong. (I forgot about DRAM refresh. I'm assuming that it would would cut 40 cycles out of H-blank and V-blank, though....

For #2..., I have the following estimations/exact numbers in terms of master clock cycles. (I figured them out from the numbers here.)
Scanline: 1024
H-blank: 340
V-blank: 586 (31958 on 256x239 and 52418 on 256x224)
Correct me if I'm wrong, of course.

I already posted two unrelated questions, so why not more? 3) This is a Cx4 question. (or set) What is the purpose (or what do you store to, and in what format) of the registers that are labeled MSBs/MSB of the above in this documentation? For example, how does this work: (command $00, subcommand $0...

If you don't want to change the mapping, I recall LoROM being limited to 16Mb/2MB and HiROM being limited to 32MB/4MB. Also, how did you get 64Mb/8MB? Are you including or excluding changing the mapping? In addition, are you including or excluding the mirrors in banks 80 through FF as additional spa...

I'd highly suspect a 16-bit access won't work, as the port is probably an 8-bit link between the chips. Actually, I've seen it before, even in a commercial games. Anyway, thank you for taking so much time to answer my questions! If anyone could answer my other question, I would be thankful as well.

1) Well, don't worry about it. I looked over the places I previously found information and that helped me understand even further. 2) What do you mean? Do you mean sound effects or different music? Also, should I add a LDA #$BBAA CMP $2140 BEQ $02 ;Skip the PLP and RTL or RTS PLP RTL ;or RTS between...

O.K., a few things. 1) While this is definitely easier to understand than the other routines I've seen, I am going more for an actual understanding of the ports. It doesn't matter much but it might be nice. (After all, having a routine isn't like knowing what the routine does.) 2) Why did you never ...

If I understand your post properly, you think I'm talking about the SPC700 data as opposed to the format that the SNES stores it in. (Correct me if I'm wrong.) In the SNES Development manual, I got the following information before hand: 1) The first word is the length of the block 2) The second word...

1) Every document I've come across that deals with the APU I/O ports go over the SNES side briefly, not giving me enough information on what format I should upload the data in, and normally, how I should upload it. (I do have the latter information now but I'm unsure if I'm thinking of it properly) ...