When i have the following code for JWASM in DOS:
MOV AH, 02h
INT 21h
Is it then guaranteed that INT 21h will never change the content of AH?
I ask because of this:
MOV DL, 0Dh ; Output CR
MOV AH, 02h
INT 21h
MOV DL, 0Ah ; Output LF
MOV AH, 02h <---- If INT 21h does not change AH, then i won't need that line. One operation less.
INT 21h