Search found 6 matches

by RetroDad
Sun Nov 03, 2019 6:56 pm
Forum: NESdev
Topic: Issues with STA at addresses greater than $8000
Replies: 7
Views: 4886

Re: Issues with STA at addresses greater than $8000

Yeah exactly, I was talking about that declaration - .segment "OAM" oam: .res 256 Not sure why I said 32 bytes, weird. My solution was this - LoadSprites: LDX #$00 LoadSpritesLoop: LDA sprites, x STA $0200, x INX CPX #$10 BNE LoadSpritesLoop I did change the above though in favor of the OA...
by RetroDad
Sun Nov 03, 2019 9:19 am
Forum: NESdev
Topic: Issues with STA at addresses greater than $8000
Replies: 7
Views: 4886

Re: Issues with STA at addresses greater than $8000

Awesome! Thanks! I have been going through your example Brad and have included the nfg linker into to my project. First of all, loving the python script. Debugging has become a major part of my project unfortunately, any tools/scripts to help with debugging is greatly appreciated! Do you specificall...
by RetroDad
Sat Nov 02, 2019 11:54 am
Forum: NESdev
Topic: Issues with STA at addresses greater than $8000
Replies: 7
Views: 4886

Re: Issues with STA at addresses greater than $8000

Awesome thanks! That it what I had thought, I just wanted to make sure I wasn't overlooking a bug.

I noticed that ca65 linker default settings only give 24 bytes to zero page. Why would they do that?
by RetroDad
Sat Nov 02, 2019 11:21 am
Forum: NESdev
Topic: Issues with STA at addresses greater than $8000
Replies: 7
Views: 4886

Issues with STA at addresses greater than $8000

I am having issues with STA at addresses greater than $8000. So "STA $8000" will not load what in register A. Is this because it's the code/ROM section or do I need to take a better look at my other code. I am using the ca65 compiler, linker below. A standard setup. Thanks SYMBOLS { __STAC...
by RetroDad
Thu Oct 17, 2019 12:58 pm
Forum: NESdev
Topic: ca65 Memory Management using nes.cfg?
Replies: 3
Views: 3429

Re: ca65 Memory Management using nes.cfg?

Thanks for the help! I got me some docs to read
by RetroDad
Thu Oct 17, 2019 10:50 am
Forum: NESdev
Topic: ca65 Memory Management using nes.cfg?
Replies: 3
Views: 3429

ca65 Memory Management using nes.cfg?

I am somewhat new to NES Development. I worked my way through the Nerdy nights and I am currently starting to work on my own game. First thing I did was switch over to the ca65 assembler. I am currently working on compression for my MetaTiles. I need lookup tables that start with a lowbyte $00. To a...