mobygamer / xdc Goto Github PK

Hello!

I'm having some really weird behaviour with the compiler binary provided in the COMPILED directory. I'm getting a divide-by-zero exception, ostensibly as it parses the input script, and I'm not sure if it's an error in my script or something wrong in my DOSBox config (although it also seems to happen on a default config with 0.74). Hopefully someone else has run into this before.

Error:

Fatal runtime error 200 at 0000:0570: Division by zero

Script:

# Smells Like Teen Spirit
screenmode=1
sourcefps=24
waveinput=smells.wav
maxdiskrate=160
# frames
sm000001.bmp
sm000002.bmp
sm000003.bmp
sm000004.bmp
sm000005.bmp
#...

Log:

594928 bytes free
Parsing input script ..\smells\smells.scr
Assuming encoding fps of 59.922751014 which grants 39824 cycles pe

The log ends in the middle of that line, but I assume it's because the rest of it was lost in a write buffer.

I think that the only non-default thing I have in my DOSBox config is cycles=max, but I don't expect it to be an issue.

Any pointers for things I should investigate?

The running the XDC_PLAY.EXE in DOSBOX with /q parameter in DOSBOX will result in 30%~50% pixels displayed correctly, but others are just filled with random patterns. This is worse when video mode is set to svga_s3. However, there is always a portion of pixels displayed correctly and the timing (i.e. framerate) also seemed correct.
I presume that this problem may be caused by imperfect emulation of 8253 by DOSBOX, therefore it shouldn't appear on a real PC.

Per the title, it seems the video always runs too fast. I have an ESS ES488 SB clone, which isn’t supported, so it defaults to using quiet mode. Any advice?