Hello. I want learn assembly, and I playing with 16 bit.
I have this little .com file that print the letter Z:
org 100h
mov al, 'Z'
int 29h
ret
But I want use that instruction from a c program with tiny c:
And I have this, but not works:
#include <stdlib.h>
int main()
{
__asm__ (
"movl $90,%al\n\t"
"int $0x29"
);
return 0;
}
what is wrong ?
_______________________________________________
There are a few of problems here:
1) tcc is 32 or 64 bits
2) tcc produces Windows EXEs, not COM files
3) The EXEs only work in protected-mode Windows, not real-mode DOS
If you are looking for a 16-bit C toolset:
DJGPP: http://www.delorie.com/djgpp/16bit/
...has instructions for creating a gcc for 8086.
Read the caveats!
OpenWatcom: http://www.openwatcom.org/
...has a complete dev environment, including compiler and assembler,
that will work for 16-bit DOS. The assembler is MASM-like
If you want to develop assembler modules and link them to C, I would
recommend:
fasm (http://flatassembler.net/)
NASM (http://www.nasm.us)
There are probably more, google will help to find them.
Hope This Helps,
Steve
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