3 ms·
AH=4C is new in MSDOS 2.0, AH=0 dates back to CP/M (the low DOS calls are compatible with CP/M, hence the use of FCBs for example) and always sets the exit stat
by bonzini 4y ago
AH=4C is new in MSDOS 2.0, AH=0 dates back to CP/M (the low DOS calls are compatible with CP/M, hence the use of FCBs for example) and always sets the exit status to 0.