mov ah, 01h ; DOS input char (echo) int 21h mov char, al
tasm hellocom.asm tlink /t hellocom.obj ; /t → produce .COM | Option | Meaning | |--------|---------| | /zi | Full debug info | | /m | Multiple passes (for forward references) | | /w0 | No warnings | | /l | Generate listing file | tasm 1.4
mov ah, 02h ; DOS output char mov dl, char int 21h mov ah, 01h ; DOS input char (echo)