DOS ain't dead

testing speed of DOS assemblers under djl's 8086 DOS emulator (Emulation)

posted by rr  , Berlin, Germany, 02.05.2026, 16:00

> It does have some sense that a86 is faster. It's likely written in
> assembly. The other assemblers you compared against are written in C.

a72 / ra is written in itself (assembler).

> I am thinking aloud: you might get better result with those by trying to
> compile them with a different compiler if the source is not too modern. Or
> with modern DOS compilers with optimization options (GCC-IA16?). That might
> make them faster.

It is very unlikely, that this will bring nasm16 down from 6 minutes (= 360 seconds) to 5 seconds. That would be 72 times faster.

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Complete thread:

• testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 29.04.2026, 05:41 (Emulation)
  • testing speed of DOS assemblers under djl's 8086 DOS emulator - Oso2k, 29.04.2026, 16:56
    • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 30.04.2026, 02:45
  • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 01.05.2026, 13:11
  • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 01.05.2026, 13:23
  • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 02.05.2026, 00:40
    • testing speed of DOS assemblers under djl's 8086 DOS emulator - rr, 02.05.2026, 16:00
      • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 02.05.2026, 20:52
    • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 07.05.2026, 13:33
      • testing speed of DOS assemblers under djl's 8086 DOS emulator - RayeR, 07.05.2026, 15:38
        • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 08.05.2026, 15:22
      • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 10.05.2026, 05:38
  • testing speed of DOS assemblers under djl's 8086 DOS emulator - Khusraw, 03.05.2026, 12:56
    • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 08.05.2026, 04:39
      • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 08.05.2026, 14:49
        • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 09.05.2026, 09:58
          • testing speed of DOS assemblers under djl's 8086 DOS emulator - bocke, 16.05.2026, 00:27
            • testing speed of DOS assemblers under djl's 8086 DOS emulator - Rugxulo, 16.05.2026, 05:05
      • testing speed of DOS assemblers under djl's 8086 DOS emulator - Khusraw, 12.05.2026, 12:29