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AX = A100h
Return:
AX = 0000h CF clear BX,CX,DI may be destroyed
Desc: Sets bit 7 of CMOS RAM location 37h and updates the CMOS checksum in locations 3Eh and 3Fh
Notes: In the examined version of the BIOS, nonzero values in AL cause it to drop through to checking the next possible value of AH, i.e. only subfunction 00h is supported. Also supported by Dell XPS P90 and IBM PS/PV 6384, which also use AMI BIOSes
Category: Non-Volatile Config Storage - Int 15h - A
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