MS-DOS(PC-98) app developed in C language

Install tools

• gcc-ia16

$ sudo add-apt-repository ppa:tkchia/build-ia16
$ sudo apt-get update
$ sudo apt-get install gcc-ia16-elf
$ sudo apt-get install libi86-ia16-elf

How to make

• tiny code model(64KB)

$ ia16-elf-gcc -mcmodel=tiny -march=i286 -o hello.com hello.c
$ file hello.com
hello.com: COM executable for DOS

• small code model

$ ia16-elf-gcc -mcmodel=small -march=i286 -o hello.exe hello.c

• medium code model

$ ia16-elf-gcc -mcmodel=medium -march=i286 -o hello.exe hello.c

• When using libi86

If any of the headers are used.

#include <bios.h>
#include <conio.h>
#include <dos.h>
#include <dpmi.h>
#include <graph.h>
#include <i86.h>
#include <libi86/string.h>
#include <libi86/stdlib.h>

$ ia16-elf-gcc -mcmodel=medium -march=i286 -o hello.exe hello.c -li86