Int 2F/AX=12FFh/BX=0000h

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DR DOS 6.0+ IBMBIO.COM - QUERY SIZE OF THE BDOS

AX = 12FFh
BX = 0000h

Return:
AX = 0000h if supported DX = size of the BDOS in paragraphs Flags trashed ES,CL destroyed (DR PalmDOS)

Note: This API is provided by IBMBIO.COM for the initialization phase of drivers loaded via DEVICE=/HIDEVICE=/DEVICEHIGH= directives and is only available during these short time intervals. It is called by DR DOS 6.0 EMM386.SYS and Novell DOS 7+ EMM386.EXE to query the size of the BDOS kernel (the resident code of IBMDOS.COM).

See Also: AX=12FFh/BX=0001h - AX=12FFh/BX=0002h

Category: Other Operating Systems - Int 2Fh - D

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