INT 10 - ATI Mach64 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. - SET SLEEP MODE AX = A00Ch CL = new state 00h normal operation 01h standby 02h suspend 03h off Return: AH = status 00h successful 01h failed Note: CL bit 2 affects values written to video card's ports SeeAlso: AX=A000h,AX=A00Dh,AX=4F00h,AX=4F10h/BL=01h