INT 31 P - DPMI 1.0+ - SET EMULATION
        AX = 0E01h
        BX = coprocessor flag bits
            bit 0: enable numeric coprocessor for current client
            bit 1: client will emulate coprocessor
            bits 2-15: not used
Return: CF clear if successful
        CF set on error
            AX = error code (8026h) (see AX=0000h)
Note:   supported by 386MAX v6.01, which otherwise only supports DPMI 0.9