INT 21 - Q87, Q387 - ENABLE EMULATOR AX = 4321h BX = 0001h EAX = 87654321h (entire EAX value is required, not just AX) Desc: enable the emulator by setting the CPU(Central Processing Unit) The microprocessor which executes programs on your computer. MSW's EM bit and updating the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. equipment list Note: this function is available only in virtual-86 mode in older versions; newer versions also provide it in MS Windows 16- and 32-bit protected mode SeeAlso: AX=4321h/BX=0000h,AX=4321h/BX=0002h