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Stripped down version of Doom (Doom8088) for only running timedemo 3

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FrenkelS/doomtd3

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Just enough Doom to run timedemo 3

Doomtd3

Does your computer have 300 kB free contiguous memory? And is there a C compiler for it?

Then you can port Doom to it. Well, enough parts of Doom to run timedemo 3, in black and white.

32-bit CPU, 16-bit CPU. Little-endian, big-endian. It's all possible. No FPU required.

How to add other platforms

Implement i_system.h. Look at i_ibm.c and i_mac.c for examples.

Platform Platform specific code Compiler Set environment variables Compile code Additional information
Amiga 500 i_amiga.c amiga-gcc n/a compa500.sh Experimental, might not work on a real machine
HP 95LX i_hp95lx.c, i_ibma.asm gcc-ia16, NASM n/a comphp95.sh No status bar, also runs on HP 100LX and HP 200LX
IBM PC 16-bit i_ibm.c, i_ibma.asm gcc-ia16, NASM n/a compia16.sh Use command line argument lcd to invert the colors
IBM PC 16-bit1 i_ibm.c Watcom setenvwc.bat compwc16.sh Use command line argument lcd to invert the colors
IBM PC 32-bit i_ibm.c DJGPP setenvdj.bat compdj.bat Use command line argument lcd to invert the colors
Macintosh Plus i_mac.c Retro68 n/a CMakeLists.txt Experimental, might not work on a real machine

Footnotes

  1. Two compilers can build the IBM PC 16-bit port. Gcc-ia16 produces faster code than Watcom. The static code analysers of both compilers detect different issues.