Int 2F/AX=4308h

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HIMEM.SYS v2.77+ - GET A20 HANDLER NUMBER

AX = 4308h

Return:
AL = 43h if supported BL = A20 handler number (value of /MACHINE:nn switch) BH = AT A20 switch time (00h medium, 01h fast, 02h slow)

Note: If the A20 handler number returned in BL is 00h, an external handler is being used (see AX=4330h)

See Also: AX=4309h - AX=4330h

Category: Memory Management - Int 2Fh - H

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