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Compiled the code (using Borland C++ Builder 5). I got some errors: It doesn't know "PI" (it's called "M_PI" in Borland), fixed it. The second error was that the compiler didn't know "(BYTE)", which seems to me like a typecast from float to byte. Never did a typecast to...

thx, I already thought it was that rom/ram difference. But why doesn't nesasm warn me while assembling when I write values to ram when they won't be in the rom image? The sinwave is really wrong, but i don't know how to calculate the values I need. I've just written a small c++ prog with a for-loop ...

Thanks, that's very kind that you'll be looking at the whole code, thought first it would be too big to post here (didn't want to spam) .inesprg 1 ; one (1) bank of program code .ineschr 1 ; one (1) bank of picture data .inesmap 0 ; we use mapper 0 .inesmir 1 ; Mirror setting always 1. .bank 1 ; fol...

Tried it, no changes.

Greets, I want to write some small sine-scrolling demo, for which I calculated the sine-values with a small c++ program (the values look strange to me...) and pasted them into a value in bank 0. First, the values were to many to fit in one .db so I used three lines of .db to store the values in. Whe...

I had a headcrash some time again and therefore had to rewrite most of my games' code. I want to make my score-counter to be made of background-tiles again and again I get a messed up screen. ;load the titlescreen background ;turn screen on ;wait for start-key to be pressed lda #0 sta $2001 ;load in...

OK, the .incbin'd testpal is only used for copying it's content into the buffer. As you said, the starting values have to be in ROM, so I asume I can still incbin a file. I think I can just load the palette while NMI and remove the palette loading routine at the beginning of the code. But when I do ...

Seems I get some problems with nesasm.
I declared the palette with testpal .db $21, $..... (32 values in total).
Now I get a grey screen.
How do I input the data in nesasm without giving every byte an extra name?

Can I .incbin my old palette file in RAM and alter it? I did so, but the palette does not change. Perhaps my cycle routine is wrong. mainloop: lda Timer cmp #60 bne mainloop ldx #0 lda testpal, x cycleloop: inx ldy testpal, x sta testpal, x tya cpx #15 bne cycleloop infin: jmp mainloop This should j...

Are there any developement tools (e.g. nametable/sound editor) for the MMC5?

If I understood that correctly the PPU only contains pointers to the location where the palette values are stored. Is that correct?
Where in RAM is the zeropage?

I wanted to change the palette in a given interval to do some color cylcling. Though I don't know wheter my cycle routine works or not I just copied the palette loading routine from the beginning of the program to be executed on every 60th vBlank. Of course I turned off the screen before writing the...

I've downloaded the starter kit too, seems to be pretty handy, especially the pcx converter. But I didn't do much assembler yet and although the code is well commented, I cannot really use it to start snesdeving with. Isn't there some more basic tutorial without extern assembler files which really d...

It worked! Thanks a lot! Now with Mapper 3 do I still have to use the sprite 0 trick? If yes, please explain Quietust's code once more: I know that the code to switch between banks in one frame has to be somewhere in the wait-for-vBlank loop. Why is he using a subroutine? And how do I put sprite 0 i...

It still doesn't work.
I've included four char files (32kb). But why should the rom then be 64kb big? At the moment its size is 32kb.
Maybe the problem is the bankpages variable. Is it correct that it's .org'd at $0000? Or could it be that it's because I wrote .db instead of .byte?