Int 15/AX=D042h/BL=03h

Prev Next Ralf Interrups Categories Contents

------

Intel Pentium Pro BIOS UPDATE - READ BIOS UPDATE AREA

AX = D042h
BL = 03h
ES:DI -> buffer for microcode update block (see #00533)
ECX = two real-mode 64K scratchpad segments (upper and lower words)
DX = segment of 64K scratchpad area for BIOS use
SI = zero-based index number of update block to retrieve

Return:
CF clear if successful CF set on error AH = status 00h successful ES:DI buffer filled with 2048-byte update block 86h not implemented AL = OEM error (if AH is not 00h or 86h, otherwise undefined) 00h successful

Program: The Pentium Pro BIOS update allows the system BIOS or other software to install a microcode patch into the Pentium Pro processor

Notes: This API must be called from actual real mode, not V86 mode. At least 32K stack space must be available when this function is called

See Also: AX=D042h/BL=00h - AX=D042h/BL=01h - AX=D042h/BL=03h

Category: Uncatagorized - Int 15h - I

------

Prev Next Ralf Interrups Categories Contents