SpritesMind.Net

I just discovered a bug in the code that could cause the 68000 remains in an infinite loop. See this piece of code (The 68000 code is runing During VBLANK):

z80 code:

ld (hl),$ff ;$1ff0
ld (ix+0),$2a ;$4000
ld (ix+1),a ;$4001 => out
ld (hl),$00 ;$1ff0


68000 code:

ym2612wr:
; a0 = $a04000 ...

I just discovered a bug in the code that could cause the 68000 remains in an infinite loop. See this piece of code (The 68000 code is runing During VBLANK):

z80 code:

ld (hl),$ff ;$1ff0
ld (ix+0),$2a ;$4000
ld (ix+1),a ;$4001 => out
ld (hl),$00 ;$1ff0


68000 code:

ym2612wr:
; a0 = $a04000 ...

Well, I'm here again. I'm working on the pushable walls, the player's hand/weapon and some other things (objects?). Very soon I will post an update of my demo.

About Duke Nukem 3D, I think the problem was the palette that they used for the walls and enemies (too many gray).

Thanks to all comments again.

You said you don't need to double buffer, this is because you can upload the whole screen in VRAM in a single frame ? If that is the case i assume you prepare your screen buffer so it is directly organized as tiles so you can ue the full DMA speed to upload in VRAM ...

Thanks for all your comments, I've been working on this demo for about a year. I started looking for different techniques raycast, I found the source code for PC but at first I found difficult to do in sega genesis (and some parts did not understand), so I set aside. I started to try some tutorials ...

This is a demo of wolfenstein for sega genesis written in asm. Mostly is based on the source code of wolfenstein 3d for PC. (sorry for my bad english) :)

Here is a video of the demo: http://youtu.be/BHtKv_cwgVk


Version b5.5(January 10, 2014):
http://www.mediafire.com/download/lbwpwho94k15xv3 ...