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AH = 87h
Return:
AX = PID BX = parent process's PID CX = Command Subgroup ID (CSID)
Program: European MS-DOS 4.0 was written for Siemens in Germany and then used by several other European OEMs; its release falls between mainstream versions 3.2 and 3.3
Desc: Determine an identifier by which to access the calling process
Notes: Called by MS C v5.1 getpid() function. This function apparently must return AX=0001h for INT 21/AH=80h to succeed. One possible check for European MS-DOS 4.0 is to issue this call with AL=00h and check whether AL is nonzero on return
See Also: AH=30h - AH=62h - AH=80h
Index:
Installation check;European MS-DOS 4.0
Category: DOS Kernel - Int 21h - E
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