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Here is my constant declaration header and how I handle the True/False. Probably not the best way, but it helps me to differentiate between CPU variables (those defined using .dsb/dsw that have a memory location), compiler variables (such as PRGCOUNT), and compiler enumerations (TRUE/FALSE). PRGCOUN...

Memblers wrote:Shouldn't you have LDA #TRUE instead of LDA TRUE?

TRUE/FALSE are values, not variables so I decided not to use the # to deferentiate.

My normal convention for variables IS to use the #.

Most likely that is the problem. The initialization code for that screen begins with ; Disable Rendering LDX #$00 STX $2001 ; disable rendering ; Set NMI to Wait LDA TRUE STA FLAG.NMI.Wait And ends with ; Set NMI FLAGS LDA FALSE STA FLAG.NMI.Wait LDA TRUE STA FLAG.NMI.Update.Sprites.Palette STA FLAG...

Here is the FCEUX debugger code. It looks like 00:82D2 00:82C2:AD 02 20 LDA PPU_STATUS = #$40 00:82C5:A9 00 LDA #$00 00:82C7:8D 06 20 STA PPU_ADDRESS = #$02 00:82CA:8D 06 20 STA PPU_ADDRESS = #$02 00:82CD:A2 09 LDX #$09 00:82CF:EA NOP 00:82D0:A0 00 LDY #$00 00:82D2:B1 10 LDA ($10),Y @ $B740 = #$00 0...

I wrote some code to load pattern tiles onto the PPU, but I am having a strange bug I cannot seem to figure out. The code is below. I am using FCEUX 2.2.3, New PPU enabled. The pattern table I have included has NINE pages (or 9 x 16 tiles = 2304 bytes). When I set NUMPAGES to 9 all I get is a gray s...

I wanted to let you all know that I'm going to be name dropping this community at a speech I've been invited to give for the military in Hawaii! A portion of the speech is how I found inspiration and solutions to current problems through the accomplishments and retro-innovations of this community! H...

Thanks Everyone! I hadn't though about doing it that way, makes it much easier.

If I want to to define a sprite animation my AMS6 code structure looks like this: DAT.Animation.Pacman.Walk: .db $08 ; Animation Timer Speed (Number of NMIs before transition) .db $03 ; Animation # of Frames .dw DAT.Sprite.Pacman.Walk3 .dw DAT.Sprite.Pacman.Walk2 .dw DAT.Sprite.Pacman.Walk1 .dw DAT....

I guess you are just lying and like doing it, I cannot imagine you doing it at that quality while hating to do it. It's an inefficient use of my time. Yes I could make good art, but EACH of those pieces took me about 40 hours. The first and last images for the RPG had reference images that I mostly...

I'm not an artist. I'd rather be programming than doing art assets, but I'm finding that I'm spending 99% of my time doing pixel art in MS Paint / NESST instead. It's really frustrating and I'm getting burnt out very quickly. Currently, I have TWO games I am working on. First is multi-mini game cart...

What tools do people use to create levels or world maps (something with more than 1 nametable)?

I need to work on a world MAP for an RPG for the NES and am curious what tools are out there. Thank you!

Normally you wouldn't be doing this kind of heavy VRAM updating in the NMI, which is more for incremental frame-to-frame updates, so my guess is that you have multiple NMIs firing before the previous instances have time to finish (i.e. they're taking longer than a frame to finish), and they end up ...

I have this when I'm simply waiting for an NMI call, but the Wait.Frame specifically watches the frame count variable for a change in value. If I'm doing partial frame updates in each NMI, I can use my code to wait over several NMIs before continuing.

I thought that too so I tried adding a disable NMI command (STA $2000) at the beginning of the NMI to see if that would fix the problem and it didn't. It made it worse. I also tried using the debugger in FCEUX to see if a second NMI is being triggered before I complete the loop (using breakpoints) a...

I'm trying to use CHR-RAM but am having a problem when I try to copy the pattern table data from PRG ROM. Here is my NMI Code LBL.NMI: PHA TXA PHA TYA PHA LDA FLAG.NMI.Update.Background BNE LBL.NMI.LoadBackground JMP LBL.NMI.LoadTiles LBL.NMI.LoadBackground: LDA FALSE STA FLAG.NMI.Update.Background ...