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Table of Contents
7. PMODE/W MSDOS Extender
7.2. PMODE/W Supported DPMI INT 31h functions
7.2.38. Function EEFF - Get DOS Extender Information
7.2.38. Function EEFF - Get DOS Extender
Information
PMODE/W API
This function Returns information about the DOS extender.
In:
AX = EEFFh
Out:
if successful:
carry flag clear
EAX = 'PMDW' (504D4457h)
ES:EBX = selector:offset of ASCIIZ copyright string
CH = protected mode system type
(0=raw, 1=XMS, 2=VCPI, 3=DPMI)
CL = processor type (3=386, 4=486, 5=586)
DH = extender MAJOR version (binary)
DL = extender MINOR version (binary)
if failed:
carry flag set
Notes:
In PMODE/W's implementation of this function, the value returned in ES is
equivalent to the 4G data selector returned in DS at startup.
This function is always successful under PMODE/W.
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