DOS ain't dead - MSA2 and TP7 overlays

MSA2 and TP7 overlays (Announce)

posted by marcov, 04.12.2019, 10:41

> Maybe TP55
> included some example code for it, I think? But I haven't checked those
> lately, don't remember. No mention of overlays on FPC's
> DOS wiki page, probably not
> supported yet.

There is an overlay chapter in SWAG. Possibly overlay handling differs between older versions, TP7 real and TP7 protected mode. (if protected mode exist at all)

> I know Go32v2 supports DXE1, but I've never used it much there. In fact, I
> never used it much (except Matt Mahoney's old C++/ASM code,
> paq8f,
> ten years ago!). DXE3 is better but rarely used (e.g. Hexen2, whose code I
> never studied closely).

DXE is slightly different since afaik DXE can be created using separate generation. IOW it can be used to create plugins for already existing (compiled) programs.

Afaik the 16-bit dos maintainers mainly has demo compos as usecase, and overlays overall increase binary size :-P And of course with FPC there is always the upgrade to 32-bit in case it gets too bad.

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Complete thread:

MSA assembler released under MIT - DosWorld, 10.11.2019, 13:44 (Announce)
- MSA assembler released under MIT - tom, 10.11.2019, 19:00
  - MSA assembler released under MIT - DosWorld, 12.11.2019, 14:42
    - MSA assembler released under MIT - Rugxulo, 15.11.2019, 03:24
      - MSA assembler released under MIT - DosWorld, 15.11.2019, 16:38
    - MSA2 and TP7 overlays - Rugxulo, 02.12.2019, 20:47
      - MSA2 and TP7 overlays - marcov, 03.12.2019, 16:37
        MSA2 and TP7 overlays - Rugxulo, 04.12.2019, 03:59
        MSA2 and TP7 overlays - marcov, 04.12.2019, 10:41
        Turbo Pascal overlays (overleden? ha!) - Rugxulo, 16.02.2020, 03:48
        Turbo Pascal overlays - Rugxulo, 18.02.2020, 03:03
        Turbo Pascal overlays & NASM Preprocessor - ecm, 05.03.2020, 16:42
      - MSA2 and TP7 overlays - rr, 03.12.2019, 21:34
      - MSA2 and TP7 overlays - Rugxulo, 14.12.2019, 13:28
        MSA2 and TP7 overlays - rr, 14.12.2019, 23:42
        MSA2 and TP7 overlays - marcov, 15.12.2019, 21:07
        MSA2 and TP7 overlays - Rugxulo, 16.12.2019, 19:15
      - MSA2 and TP7 overlays - DosWorld, 15.12.2019, 21:42
        MSA2 and one-pass assemblers - Rugxulo, 16.12.2019, 19:32
        MSA2 compilation with GCC - Rugxulo, 12.02.2020, 08:18