INT 15H c0H: Get System Parameters


 Expects: AH    c0H

          

 Returns: AH    00H (and CF=NC=0) successful, and ES:BX points to valid data

                86H (and/or CF=CY=1) unsuccessful

          ES:BX addr of system configuration table

          

    Info: This returns a pointer to a table that describes the system.



BiosSysParmsRec

  Offset Size Contents

    

   +0      2  wLen       length of this table, in bytes

   +2      1  yModel     PC=ff,XT=fe or fb, PCjr=fd, AT=fc, unknown=ff

   +3      1  ySubModel  PC,XT,PCjr,AT=00; AT=01, XT-286=02

   +4      1  yRevLvl    BIOS revision level (0=initial release)

   +5      1  rFeatures1 features bits:

              76543210

                     0

              - bit  mask

                      > 0: 01H  (reserved)

                     > 1: 02H  0=PC-type I/O channel

                    > 2: 04H  1=Extended BIOS area allocated

                   > 3: 08H  1=wait for ext event supported

                  > 4: 10H  1=INT 15H 4fH supported by INT 09H

                 > 5: 20H  1=real-time clock is present

                > 6: 40H  second interrupt chip is present

               > 7: 80H  hard disk BIOS uses DMA chnl 3



   +6      1  rFeatures2 (reserved)

   +7      1  rFeatures3 (reserved)

   +8      1  rFeatures4 (reserved)

   +9      1  rFeatures5 (reserved)

          10             size of this structure



See Also: INT 15H (extended AT services)

          BIOS Data Area

          ROM-BIOS Functions

                                    -*-