ack/plat/msdos386
tkchia 249e4b9069 plat/msdos386: fix a few more issues with startup and stub code
- correctly calculate size of BSS area to clear
 - make realloc routine set both ds & es to point to new
   data segment
 - correctly initialize real mode flags when simulating real
   mode interrupt via DPMI
 - other minor fixes
2022-08-24 10:17:15 +00:00
..
include Add the nonfunctional boilerplate for the MSDOS 386 port. 2022-08-03 20:41:06 +02:00
libsys Fix typo. 2022-08-19 20:03:48 +02:00
boot.s plat/msdos386: fix a few more issues with startup and stub code 2022-08-24 10:17:15 +00:00
build-pkg.lua We can now load and run 32-bit protected-mode executables. We have not, 2022-08-09 23:49:18 +02:00
build-tools.lua Add the nonfunctional boilerplate for the MSDOS 386 port. 2022-08-03 20:41:06 +02:00
descr Most of read and write now works; filename-based operations partially work; but 2022-08-19 00:08:57 +02:00
README Update documentation. 2022-08-19 20:08:39 +02:00
stub.s plat/msdos386: fix a few more issues with startup and stub code 2022-08-24 10:17:15 +00:00

The msdos386 platform
=====================

msdos386 is an i386-based BSP that produces DPMI DOS executables. It should
have the same functionality as msdos86 (as the libc is all the same code), but
has been much less well tested.

The code runs in flat 32-bit mode, so normal 32-bit pointers work with no
worries about segmentation. It requires a DPMI host to run; it was tested with
CWSDPMI. It will _not_ automatically load the host --- you need to manually
install the DPMI hsot first.

IEEE floating point is available, but requires an FPU.


Example command line
====================

ack -mmsdos386 -O -o msdos386.exe examples/paranoia.c


David Given
dg@cowlark.com