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PMODE/W MSDOS Extender
PMODE/W Supported DPMI INT 31h functions

Function 0400 - Get Version

PMODE/W API

This function Returns the version of the DPMI Specification implemented by the DPMI host. The client can use this information to determine what functions are available. 
In:
   AX     = 0400h
Out:
   always successful:
     carry flag clear
     AH   = DPMI major version as a binary number (VCPI/XMS/raw
            returns 00h)
     AL   = DPMI minor version as a binary number (VCPI/XMS/raw
            returns 5ah)
     BX   = flags:
            Bits Significance
            0    0 = host is 16bit (PMODE/W never runs
                     under one of these)
                 1 = host is 32bit
            1    0 = CPU returned to V86 mode for reflected
                     interrupts
                 1 = CPU returned to real mode for reflected
                     interrupts
                 2    0 = virtual memory not supported
                      1 = virtual memory supported
                      3-15 reserved
     CL   = processor type:
            03h = 80386
            04h = 80486
            05h = 80586
            06h-ffh = reserved
     DH   = current value of master PIC base interrupt
            (low 8 IRQs)
     DL   = current value of slave PIC base interrupt
            (high 8 IRQs)
Notes:
The major and minor version numbers are binary, not BCD. So a DPMI 0.9 implementation would return AH as 0 and AL as 5ah (90).

Previous: Function 0306 - Get Raw Mode Switch Addresses To the Table of Content Next: Function 0500 - Get Free Memory Information
Function 0306 - Get Raw Mode Switch Addresses Table of Content Function 0500 - Get Free Memory Information
- 7.2.28 -