Search found 340 matches

by infidelity
Tue Nov 12, 2019 11:01 am
Forum: NESemdev
Topic: Need help with mmc5.cpp source, for custom modification
Replies: 39
Views: 17878

Re: Need help with mmc5.cpp source, for custom modification

So I'm hoping there's someone who can help me out with this.
by infidelity
Tue Nov 12, 2019 9:52 am
Forum: NESemdev
Topic: Need help with mmc5.cpp source, for custom modification
Replies: 39
Views: 17878

Re: Need help with mmc5.cpp source, for custom modification

I'm creating a new project where the player can construct & save. I dont want to spoil any details as to what I'm trying to accomplish, but it works. I just need more available wram, which is why I've been trying to modify the mmc5.cpp file.
by infidelity
Tue Nov 12, 2019 5:32 am
Forum: NESemdev
Topic: Need help with mmc5.cpp source, for custom modification
Replies: 39
Views: 17878

Need help with mmc5.cpp source, for custom modification

I'm not fluent in c++, but I've been attempting to modify certain functions within the MMC5 mapper. So far I've been able to adjust the output size of the .sav file, but I need to adjust how many swappable wram pages are available. Register $5113 goes from 00-07, giving you 8 individual 2000 byte pa...
by infidelity
Sun Jul 14, 2019 11:39 am
Forum: Newbie Help Center
Topic: Need refresher on proper tile write without screen fluctuati
Replies: 8
Views: 4654

Re: Need refresher on proper tile write without screen fluct

Yup its FCEUX, and that explains it cause it's running perfect.
by infidelity
Sun Jul 14, 2019 11:23 am
Forum: Newbie Help Center
Topic: Need refresher on proper tile write without screen fluctuati
Replies: 8
Views: 4654

Re: Need refresher on proper tile write without screen fluct

Ok really weird, I went somewhere where the scanline was around 241, (was sniffing around a vram buffer in the game I wasnt utilizing for what I'm doing) and I sub routined my code there, and now it works.

I've always been flakey with the NES timings, ugh.
by infidelity
Sun Jul 14, 2019 11:02 am
Forum: Newbie Help Center
Topic: Need refresher on proper tile write without screen fluctuati
Replies: 8
Views: 4654

Re: Need refresher on proper tile write without screen fluct

Well I tried initiating this code earlier to where when my debugger snaps, it says the Scanline is at 19, and when I initiate the code I still get the screen fluctuation?
by infidelity
Sun Jul 14, 2019 10:30 am
Forum: Newbie Help Center
Topic: Need refresher on proper tile write without screen fluctuati
Replies: 8
Views: 4654

Re: Need refresher on proper tile write without screen fluct

Crud, snapped the debugger where my routine begins, scanline says it's at 21. But the routine I have, is that the correct order?
by infidelity
Sun Jul 14, 2019 10:16 am
Forum: Newbie Help Center
Topic: Need refresher on proper tile write without screen fluctuati
Replies: 8
Views: 4654

Need refresher on proper tile write without screen fluctuati

Simply trying to write 1 individual tile. Getting screen fluctuation everytime the 1 tile is drawn. LDX $#00 LDA $2002 LDA #$23 STA $2006 ;determine low byte vram address to load/write TYA PHA LDY #$00 LDA $A443,Y CMP $B7 BEQ $A473 INY CMP #$09 BNE $A467 LDA $A44B,Y STA $2006 ;determine tile to load...
by infidelity
Wed Feb 20, 2019 10:44 am
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Understood, thank you.
by infidelity
Wed Feb 20, 2019 5:23 am
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

I really need the wram to work with mapper 209, I've made sure that my header has the correct bit set in the 10th byte for prg-ram usage, I made sure that $D000 for mapper is setup correctly for prg-ram, and I looked over the wiki on mapper 209, to make sure it doesn't use $6000-$7FFF. Again any and...
by infidelity
Tue Feb 19, 2019 4:58 pm
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Hmm, cant get it to work still. This is what FCEUX says. Mapper #: 209 Mapper name: Mirroring: Horizontal Battery-backed: Yes Trained: No NES2.0 Extensions Sub Mapper #: 0 Total WRAM size: 8192 Total VRAM size: 0 WRAM backed by battery: 8192 VRAM backed by battery: 0 this is what $D000 says for 209 ...
by infidelity
Tue Feb 19, 2019 2:22 pm
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Oh ok, thanks for that piece of info.
by infidelity
Tue Feb 19, 2019 10:59 am
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Ok I'll take a look at my header tonight.

One more question. I checked the wiki on the NES 2.0 header, and noticed a term called PRG-NVRAM. I've seen this as well in the ines editor within Nestopia, but idk what the NV stands for?
by infidelity
Tue Feb 19, 2019 9:32 am
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Or am I incorrect that any nes game, regardless of mapper, can access nes's $6000-$7FFF?

I'm using NES 2.0 header.
by infidelity
Mon Feb 18, 2019 6:23 am
Forum: Newbie Help Center
Topic: Unable to change mirroring in JY-120A
Replies: 19
Views: 11584

Re: Unable to change mirroring in JY-120A

Is there anyone that knows c+, that could edit the "90.cpp" mapper file for FCEUX, to allow wram usage? I'm using 209 and have figured out how to utilize all the registers I wish to use, only problem is with the projects I have in mind, I cant write anything to $6000-$7FFF. Is there anyone that woul...