MaxCoderz

Thanks.. That Z80 manual will hopefully help my understanding of the processor.

Thanks for all the help... I'm pretty sure that from some tests, that if you reset the bit so that timer Interrupts are ignored, your calculator will crash.. I just learned how to write directly to the LCD driver using port $10 and $11.. But, I'm not sure how the calculator will react when I disable...

Thanks. I read somethig about sending $0Ah to Port 3. Is it 0Ah or 0Bh?

This has already been fixed (Sun Jun 11, 2006 ): I just learned how to make an interrupt for the Ti-84\83 series. My code, shown below is supposed to make a flickery grayscale line (if you can call it that) on the first line of the screen ($9340\plotsscreen). All it does though, is show a black line...

Hmm, I'm going to go work on a more effiecient x and y coordinate displaying routine..

:\ Are you saying that my routine is very inefficient?

Hmm, the first time I started z80 asm none of my programs work. TASM is case sensitive and you must tab all code to the right. Some websites with source codes capitalize thingsa that aren't supposed to be.

I'm pretty sure this routine should be common, since the addresses for the screen are 8-bit, which each contain 8-pixels. If you were using an exact pixel, you would need to divide that pixel by 8 to get the adress its on. The remainder of the division should be the bit offset of the sprite....

Hmmm, it did work. The only thing that I'm not sure about is ---ld hl,(Pixel)... I added that so it was not showing one value as (Pixel), is what the pixel is. I don't know why I made two sprite labels. Its a bit dumb, sorry. This is no stub asm.

Can someone analyze my sprite displaying routine. I'm sorry that I did not add really useful comments :\ It uses the exact pixel on the screen, not the x and y coordinates. I have yet to do that :l Accepting suggestions :) .NOLIST #define EQU .equ #define equ .equ #define END .end #define end .end #...