Search found 181 matches

by doppelganger
Sat Jul 27, 2019 11:36 am
Forum: NESdev
Topic: Problem with SMB Disassembly?
Replies: 7
Views: 8986

Re: Problem with SMB Disassembly?

If you take out the .index and .mem directives above the .org directive, you should be able to get it to assemble on asm6 without any other modifications. x816 used those because it was actually a 65816 assembler, and those two directives were used to tell the assembler how big the immediate operand...
by doppelganger
Mon Apr 29, 2019 11:48 am
Forum: Newbie Help Center
Topic: how different assemblers handle labels
Replies: 0
Views: 9460

how different assemblers handle labels

Off-topic-yet-sort-of-not: I spent 2 hours of my time yesterday writing up how 21 different assemblers allow forcing of absolute addressing , and I really don't want to spend several more hours writing up how many different assemblers handle different syntaxes; the term "time vampire" com...
by doppelganger
Tue Apr 09, 2019 10:33 pm
Forum: Newbie Help Center
Topic: "Incomplete expression." in ASM6 macro
Replies: 15
Views: 14412

Re: "Incomplete expression." in ASM6 macro

The problem with the traditional .ifndef type include guard is that ASM6 is a multiple-pass assembler, and anything inside an .ifndef with a following .define inside it will get processed on the first pass, but not on the second. The ASM6 only states that .ifdef and .ifndef operate depending on whet...
by doppelganger
Tue Apr 09, 2019 2:37 pm
Forum: Newbie Help Center
Topic: "Incomplete expression." in ASM6 macro
Replies: 15
Views: 14412

Re: "Incomplete expression." in ASM6 macro

So both the driver and instrument/sequence data are assembled together in one unit?
by doppelganger
Tue Apr 09, 2019 11:36 am
Forum: Newbie Help Center
Topic: "Incomplete expression." in ASM6 macro
Replies: 15
Views: 14412

Re: "Incomplete expression." in ASM6 macro

Are you trying to use include guards because multiple source files include the same stuff?
by doppelganger
Sun Aug 23, 2015 11:57 am
Forum: NESdev
Topic: smb2j comprehensive disassembly
Replies: 8
Views: 6182

Re: smb2j comprehensive disassembly

Welcome back. We missed you, beneficii.
by doppelganger
Sun Nov 02, 2014 8:29 am
Forum: SNESdev
Topic: Background plane numbering: 1 or 0 based?
Replies: 11
Views: 4749

Re: Background plane numbering: 1 or 0 based?

I'm still trying to figure out how PPU2 is told by PPU1 to input or output on the EXT pins, since PPU1 has the MASTER pin (for master/slave modes).
by doppelganger
Sun Nov 02, 2014 8:04 am
Forum: SNESdev
Topic: Sprite windowing not working - RESOLVED
Replies: 9
Views: 3950

Re: Sprite windowing not working

I can't see anything wrong with this part of the code. Writing to $210E should not affect $2125 at all, since they affect two different screen components. Are you writing to the registers in some other part of the code?
by doppelganger
Wed Apr 23, 2014 5:19 am
Forum: SNESdev
Topic: Scrolling on the SNES?
Replies: 9
Views: 4006

Re: Scrolling on the SNES?

Is it possible to check the PPU regs in no$snes? If it is, you should check to see if the scroll registers are being written properly. Since you have only posted a little bit of the NMI, I can't say for certain what's wrong with the code.
by doppelganger
Wed Mar 26, 2014 4:12 pm
Forum: NESdev
Topic: NES power-on self-test (POST)
Replies: 19
Views: 26615

Re: NES power-on self-test (POST)

I'm not sure how useful this would be for the NES and its software currently, but it would make a neato possible computer permutation using NES hardware.
by doppelganger
Sun Mar 09, 2014 7:10 pm
Forum: SNESdev
Topic: SNES dev newbie questions
Replies: 63
Views: 27993

Re: SNES dev newbie questions

I've read this paragraph 4 times now, and it's bloody confusing. I can't reliably say I understand what it means, specifically the phrases "attempting a DMA from WRAM to this register" and "attempting a DMA from this register to WRAM". The only conclusion I've been able to reach...
by doppelganger
Mon Dec 02, 2013 11:47 am
Forum: General Stuff
Topic: "Balloon Fight" and "Mario Bros."
Replies: 16
Views: 6570

Re: "Balloon Fight" and "Mario Bros."

Yes, you are. Mario Bros.'s game mechanics are different from Balloon Fight or Joust.
by doppelganger
Sun Dec 01, 2013 3:33 am
Forum: SNESdev
Topic: SNES PowerPak
Replies: 605
Views: 246381

Re: SNES PowerPak

From what I understand, FAT cluster chains are not that hard. When a FAT-using system loads a file, it does the following: 1. Get first cluster number from directory entry. 2. Read cluster. 3. End of file? Yes, stop. No, continue. 4. Read entry of FAT that corresponds to current cluster number (i.e....
by doppelganger
Thu Nov 28, 2013 12:48 pm
Forum: SNESdev
Topic: spca65
Replies: 59
Views: 34772

Re: spca65

I was seeking clarification specifically on the bugs that blargg found, as I've noticed blargg goes a bit more technical than the average nesdevver (sp?).
by doppelganger
Thu Nov 28, 2013 9:56 am
Forum: SNESdev
Topic: spca65
Replies: 59
Views: 34772

Re: spca65

I'm gonna guess that you're not happy with WLA, blargg. What kinds of bugs does it have?