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DosWorld(R)

23.10.2019, 00:43
 

OBJ OMF format for x86 / 16 bit (Developers)

Hi!

I am play with compilers (try to build few own).
So, I am collect info about %subj%.

I have few pdf from M$ and Intel (it is easy to find in google).

May be somebody have more documents/source codes from old times and can share them ?

---
Make DOS great again!

roytam(R)

23.10.2019, 01:15

@ DosWorld

OBJ OMF format for x86 / 16 bit

> Hi!
>
> I am play with compilers (try to build few own).
> So, I am collect info about %subj%.
>
> I have few pdf from M$ and Intel (it is easy to find in google).
>
> May be somebody have more documents/source codes from old times and can
> share them ?

you may have a look on openwatcom's repo:
https://github.com/open-watcom/open-watcom-v2/tree/master/bld/orl/omf

marcov(R)

23.10.2019, 20:31

@ DosWorld

OBJ OMF format for x86 / 16 bit

> I am play with compilers (try to build few own).
> So, I am collect info about %subj%.
>
> I have few pdf from M$ and Intel (it is easy to find in google).
>
> May be somebody have more documents/source codes from old times and can
> share them ?

New also good? The 16-bit codegenerator of Free Pascal is only a few years old. Recent versions do away with most of the watcom tools in favor of own code.

DosWorld(R)

25.10.2019, 02:33

@ DosWorld

OBJ OMF format for x86 / 16 bit

Thanks for advise!

I had find manual for Small Assembler. This manual describe obj/omf and is more short description for OMF (may be some pages - outdated).

PS: Also, I find some fun fact. Object library (.lib) at footer-record contain dictionary. Borland's tlink works fine with empty-size dictionary, VAL-linker - require dictionary and will freeze without.

---
Make DOS great again!

Rugxulo(R)

Homepage

Usono,
26.10.2019, 07:18

@ roytam

OBJ OMF format for x86 / 16 bit

> you may have a look on openwatcom's repo:

ftp://ftp.openwatcom.org/devel/docs/omf.pdf (231 kb)

"Tool Interface Standards (TIS) Relocatable Object Module Format (OMF) Specification", "Version 1.1", "TIS Committee, May 1995".

rr(R)

Homepage E-mail

Berlin, Germany,
27.10.2019, 10:24

@ DosWorld

OBJ OMF format for x86 / 16 bit

> May be somebody have more documents/source codes from old times and can
> share them ?

https://github.com/DigitalMars/optlink (source code for Digital Mars linker)

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