Int 15 Fn 15  - Multidos Plus - Get System Block                           [T]

   AH = 15h

Return: BX:AX -> system block (see below)

See Also: AH=13h"MultiDOS"

Format of MultiDOS Plus 4.0 system block:
Offset Size    Description
 00h   WORD    segment of system control block
 02h   WORD    redirection flag set by /NOREDIRECT
 04h   WORD    no-INT 10 flag set by /NO10
 06h   DWORD   old INT 10
 0Ah   DWORD   new INT 10
 0Eh   DWORD   pointer to WORD with current TCB offset (see AH=13h)
 12h   DWORD   pointer to WORD with idle task TCB offset
 16h   DWORD   pointer to WORD with foreground TCB offset
 1Ah   DWORD   pointer to WORD with MultiDOS TCB offset
 1Eh   WORD    Task Control Block size
 20h   WORD    number of TCBs
 22h   WORD    flag: EMS present
 24h   WORD    EMS page frame base segment
 26h   WORD    16K pages in EMS page frame
 28h   WORD    base segment for conventional memory tasks
 2Ah   WORD    conventional memory size in paragraphs
 2Ch   DWORD   pointer to list of queue pointers