v4.0/src/BIOS/CMOSEQU.INC

   1                                                          ;;Rev 3.30 Modification
   2 ;Equates for CMOS.
   3
   4 ;----------------------------------------
   5 ;       CMOS EQUATES FOR THIS SYSTEM    :
   6 ;-------------------------------------------------------------------------------
   7 CMOS_PORT       EQU     070H            ; I/O ADDRESS OF CMOS ADDRESS PORT
   8 CMOS_DATA       EQU     071H            ; I/O ADDRESS OF CMOS DATA PORT
   9 NMI             EQU     10000000B       ; DISABLE NMI INTERRUPTS MASK -
  10                                         ;  HIGH BIT OF CMOS LOCATION ADDRESS
  11
  12 ;---------- CMOS TABLE LOCATION ADDRESS'S ## -----------------------------------
  13 CMOS_SECONDS    EQU     000H            ; SECONDS
  14 CMOS_SEC_ALARM  EQU     001H            ; SECONDS ALARM  ## NOTE:  ALL LOCATIONS
  15 CMOS_MINUTES    EQU     002H            ; MINUTES             | IN THE CMOS AREA
  16 CMOS_MIN_ALARM  EQU     003H            ; MINUTES ALARM       | ARE IBM USE ONLY
  17 CMOS_HOURS      EQU     004H            ; HOURS               | AND  SUBJECT  TO
  18 CMOS_HR_ALARM   EQU     005H            ; HOURS ALARM         | CHANGE. ONLY THE
  19 CMOS_DAY_WEEK   EQU     006H            ; DAY OF THE WEEK     | POST & BIOS CODE
  20 CMOS_DAY_MONTH  EQU     007H            ; DAY OF THE MONTH    | SHOULD  DIRECTLY
  21 CMOS_MONTH      EQU     008H            ; MONTH               | ACCESS LOCATIONS
  22 CMOS_YEAR       EQU     009H            ; YEAR (TWO DIGITS)   | IN CMOS STORAGE.
  23 CMOS_REG_A      EQU     00AH            ; STATUS REGISTER A   '-----------------
  24 CMOS_REG_B      EQU     00BH            ; STATUS REGISTER B  ALARM
  25 CMOS_REG_C      EQU     00CH            ; STATUS REGISTER C  FLAGS
  26 CMOS_REG_D      EQU     00DH            ; STATUS REGISTER D  BATTERY
  27 CMOS_DIAG       EQU     00EH            ; POST DIAGNOSTIC STATUS RESULTS BYTE
  28 CMOS_SHUT_DOWN  EQU     00FH            ; SHUTDOWN STATUS COMMAND BYTE
  29 CMOS_DISKETTE   EQU     010H            ; DISKETTE DRIVE TYPE BYTE            ;
  30 ;               EQU     011H            ; - RESERVED                          ;C
  31 CMOS_DISK       EQU     012H            ; FIXED DISK TYPE BYTE                ;H
  32 ;               EQU     013H            ; - RESERVED                          ;E
  33 CMOS_EQUIP      EQU     014H            ; EQUIPMENT WORD LOW BYTE             ;C
  34 CMOS_B_M_S_LO   EQU     015H            ; BASE MEMORY SIZE - LOW BYTE (X1024) ;K
  35 CMOS_B_M_S_HI   EQU     016H            ; BASE MEMORY SIZE - HIGH BYTE        ;S
  36 CMOS_E_M_S_LO   EQU     017H            ; EXPANSION MEMORY SIZE - LOW BYTE    ;U
  37 CMOS_E_M_S_HI   EQU     018H            ; EXPANSION MEMORY SIZE - HIGH BYTE   ;M
  38 CMOS_DISK_1     EQU     019H            ; FIXED DISK TYPE - DRIVE C EXTENSION ;E
  39 CMOS_DISK_2     EQU     01AH            ; FIXED DISK TYPE - DRIVE D EXTENSION ;D
  40 ;               EQU     01BH            ; - 1BH THROUGH 2DH - RESERVED        ;
  41 CMOS_CKSUM_HI   EQU     02EH            ; CMOS CHECKSUM - HIGH BYTE           ;*
  42 CMOS_CKSUM_LO   EQU     02FH            ; CMOS CHECKSUM - LOW BYTE            ;*
  43 CMOS_U_M_S_LO   EQU     030H            ; USABLE MEMORY ABOVE 1 MEG - LOW BYTE
  44 CMOS_U_M_S_HI   EQU     031H            ; USABLE MEMORY ABOVE 1 MEG - HIGH BYTE
  45 CMOS_CENTURY    EQU     032H            ; DATE CENTURY BYTE (BCD)
  46 CMOS_INFO128    EQU     033H            ; 128KB INFORMATION STATUS FLAG BYTE
  47 ;               EQU     034H            ; - 34H THROUGH 3FH - RESERVED
  48 ;
  49                                                         ;;End of Modification
  50 \1a