Compiling Doom: DJGPP vs Watcom

[Frenkel]

Which compiler produces the fastest Doom code? DJGPP or Watcom?

It took Chi Hoang 4-5 hours to port Linux Doom to DOS in 1997.
It took me about a week to port gamesrc-ver-recreation from Watcom to DJGPP.

All the assembly code is replaced by C code. There's no sound, no joystick and no Logitech Cyberman support.

The results are similar in DOSBox:

There isn't much assembly code in Doom: 4 drawing routines, 1 for multiplications, 1 for divisions and 1 for joystick support. But sure do they count.

 

[Frenkel]

DJGPP vs Watcom vs
Digital Mars vs CC386:

Are there any other C compilers that can produce 32-bit DOS code that have been updated this millennium?

 

[Chuck(G)]

What's the latest version of Microsoft C32? (You'll probably need your own library)

 

[Plasma]

OrangeC used to have DOS support, not sure if it still does.

 

[Frenkel]

The name of the compile script for CC386 is compoc.bat, with oc standing for OrangeC, because it was my intention to replace CC386 by OrangeC.

I've tried OrangeC for a short while. That didn't go well, so I went with their previous compiler, CC386.
I thought if I get that working, it would be easy to upgrade to OrangeC.
I was wrong.
I've spend all day trying like 16 of the 26 releases that are available on GitHub, but all I get are strange crashes.

 

[Plasma]

Bummer

 

[Frenkel]

The developer of OrangeC said in 2019: "yeah i'm always wanting to get rid of DOS anyway lol!" and "guess I let it go too long without regression testing."