v4.0/src/INC/DSEG.INC

   1 ;---Revised 8-17-84 FOR KBX     (ADDED ADDITIONAL KEYBOARD FLAG - KB_FLAG_3)
   2 ;----------------------------------------
   3 ;        0286 INTERRUPT LOCATIONS (READ):
   4 ;----------------------------------------
   5 ABS0    SEGMENT AT 0
   6 STG_LOC0                LABEL   BYTE
   7         ORG 2*4
   8 NMI_PTR                 LABEL   WORD
   9         ORG 5*4
  10 INT5_PTR                LABEL   WORD
  11         ORG 8*4
  12 INT_ADDR                LABEL   WORD
  13 INT_PTR                 LABEL   DWORD
  14         ORG 10H*4
  15 VIDEO_INT               LABEL   WORD
  16         ORG 13H*4                       ; NEW FDISK
  17 ORG_VECTOR              LABEL   DWORD
  18         ORG 18H*4
  19 BASIC_PTR               LABEL   WORD
  20         ORG 19H*4
  21 BOOT_VEC                LABEL   DWORD
  22 BOOT_VECTOR             LABEL   DWORD
  23         ORG 1DH*4
  24 PARM_PTR                LABEL   DWORD   ; POINTER TO VIDEO PARMS
  25         ORG 1EH*4
  26 DISK_POINTER            LABEL   DWORD
  27         ORG 01FH*4
  28 EXT_PTR                 LABEL   DWORD
  29         ORG 40H*4                       ; DISKETTE POINTER
  30 DISK_VECTOR             LABEL   DWORD
  31        ORG 41H*4
  32 HF_TBL_VEC              LABEL   DWORD
  33         ORG 46H*4
  34 HF1_TBL_VEC             LABEL   DWORD
  35         ORG 70H*4
  36 SLAVE_INT_PTR           LABEL   DWORD
  37 RTC_INT_VEC             LABEL   DWORD   ; REAL TIME CLOCK INT
  38         ORG 76H*4                       ; FIXED DISK INTERRUPT VECTOR
  39 HDISK_INT               LABEL   DWORD
  40         ORG     400H
  41 DATA_AREA                LABEL BYTE     ;ABSOLUTE LOCATION OF DATA SEGMENT
  42 DATA_WORD                LABEL WORD
  43         ORG     0500H
  44 MFG_TEST_RTN             LABEL  FAR
  45         ORG     7C00H
  46 BOOT_LOCN                LABEL  FAR
  47 ABS0    ENDS
  48 PAGE
  49 ;------------------------------------------------
  50 ; STACK -- USED DURING INITIALIZATION ONLY      :
  51 ;------------------------------------------------
  52 STACK   SEGMENT AT 30H
  53         DW      128 DUP(?)
  54 TOS     LABEL   WORD
  55 STACK   ENDS
  56 ;----------------------------------------
  57 ;       ROM BIOS DATA AREAS             :
  58 ;----------------------------------------
  59 DATA    SEGMENT AT 40H
  60 ;DATA_BASE       LABEL   BYTE
  61 RS232_BASE      DW      4 DUP(?)        ; ADDRESSES OF RS232 ADAPTERS
  62 PRINTER_BASE    DW      4 DUP(?)        ; ADDRESSES OF PRINTERS
  63 EQUIP_FLAG      DW      1 DUP(?)        ; INSTALLED HARDWARE
  64 MFG_TST         DB      1 DUP(?)        ; INITIALIZATION FLAG
  65 MEMORY_SIZE     DW      1 DUP(?)        ; MEMORY SIZE IN K BYTES
  66 MFG_ERR_FLAG    DB      1 DUP(?)        ; SCRATCHPAD FOR MANUFACTURING
  67                 DB      1 DUP(?)        ; ERROR CODES
  68 PAGE
  69 ;----------------------------------------
  70 ;       KEYBOARD DATA AREAS             :
  71 ;----------------------------------------
  72 KB_FLAG         DB      1 DUP(?)
  73 KB_FLAG_1       DB      1 DUP(?)        ; SECOND BYTE OF KEYBOARD STATUS
  74 ALT_INPUT       DB      1 DUP(?)        ; STORAGE FOR ALTERNATE KEYPAD ENTRY
  75 BUFFER_HEAD     DW      1 DUP(?)        ; POINTER TO HEAD OF KEYBOARD BUFFER
  76 BUFFER_TAIL     DW      1 DUP(?)        ; POINTER TO TAIL OF KEYBOARD BUFFER
  77 KB_BUFFER       DW      16 DUP(?)       ; ROOM FOR 15 ENTRIES
  78 KB_BUFFER_END   LABEL   WORD
  79
  80 ;------ HEAD = TAIL INDICATES THAT THE BUFFER IS EMPTY
  81
  82 ;----------------------------------------
  83 ;       DISKETTE DATA AREAS             :
  84 ;----------------------------------------
  85 SEEK_STATUS     DB      1 DUP(?)        ; DRIVE RECALIBRATION STATUS
  86                                         ; BIT 3-0 = DRIVE 3-0 NEEDS RECAL
  87                                         ; BEFORE NEXT SEEK IF BIT IS = 0
  88 MOTOR_STATUS    DB      1 DUP(?)        ; MOTOR STATUS
  89                                         ; BIT 3-0 = DRIVE 3-0 IS CURRENTLY
  90                                         ;   RUNNING
  91                                         ; BIT 7 = CURRENT OPERATION IS A WRITE,
  92                                         ;   REQUIRES DELAY
  93 MOTOR_COUNT     DB      1 DUP(?)        ; TIME OUT COUNTER FOR DRIVE TURN OFF
  94 DISKETTE_STATUS DB      1 DUP(?)        ; RETURN CODE STATUS BYTE
  95 CMD_BLOCK       LABEL   BYTE
  96 HD_ERROR        LABEL   BYTE
  97 NEC_STATUS      DB      7 DUP(?)        ; STATUS BYTES FROM NEC
  98 PAGE
  99 ;----------------------------------------
 100 ;       VIDEO DISPLAY DATA AREA         :
 101 ;----------------------------------------
 102 CRT_MODE        DB      1 DUP(?)        ; CURRENT CRT MODE
 103 CRT_COLS        DW      1 DUP(?)        ; NUMBER OF COLUMNS ON SCREEN
 104 CRT_LEN         DW      1 DUP(?)        ; LENGTH OF REGEN IN BYTES
 105 CRT_START       DW      1 DUP(?)        ; STARTING ADDRESS IN REGEN BUFFER
 106 CURSOR_POSN     DW      8 DUP(?)        ; CURSOR FOR EACH OF UP TO 8 PAGES
 107 CURSOR_MODE     DW      1 DUP(?)        ; CURRENT CURSOR MODE SETTING
 108 ACTIVE_PAGE     DB      1 DUP(?)        ; CURRENT PAGE BEING DISPLAYED
 109 ADDR_6845       DW      1 DUP(?)        ; BASE ADDRESS FOR ACTIVE DISPLAY CARD
 110 CRT_MODE_SET    DB      1 DUP(?)        ; CURRENT SETTING OF THE 3X8 REGISTER
 111 CRT_PALLETTE    DB      1 DUP(?)        ; CURRENT PALLETTE SETTING COLOR CARD
 112 PAGE
 113 ;----------------------------------------
 114 ;       POST DATA AREA                  :
 115 ;----------------------------------------
 116 IO_ROM_INIT     DW      1 DUP(?)        ; PNTR TO OPTIONAL I/O ROM INIT ROUTINE
 117 IO_ROM_SEG      DW      1 DUP(?)        ; POINTER TO IO ROM SEGMENT
 118 INTR_FLAG       DB      1 DUP(?)        ; FLAG TO INDICATE AN INTERRUPT HAPPEND
 119 ;----------------------------------------
 120 ;       TIMER DATA AREA                 :
 121 ;----------------------------------------
 122 TIMER_LOW       DW      1 DUP(?)        ; LOW WORD OF TIMER COUNT
 123 TIMER_HIGH      DW      1 DUP(?)        ; HIGH WORD OF TIMER COUNT
 124 TIMER_OFL       DB      1 DUP(?)        ; TIMER HAS ROLLED OVER SINCE LAST READ
 125 ;----------------------------------------
 126 ;       SYSTEM DATA AREA                :
 127 ;----------------------------------------
 128 BIOS_BREAK      DB      1 DUP(?)        ; BIT 7=1 IF BREAK KEY HAS BEEN HIT
 129 RESET_FLAG      DW      1 DUP(?)        ; WORD=1234H IF KEYBOARD RESET UNDERWAY
 130 PAGE
 131 ;----------------------------------------
 132 ;       HARD FILE DATA AREAS            :
 133 ;----------------------------------------
 134 DISK_STATUS1    DB      1 DUP(?)
 135 HF_NUM          DB      1 DUP(?)
 136 CONTROL_BYTE    DB      1 DUP(?)
 137 PORT_OFF        DB      1 DUP(?)
 138 ;------------------------------------------------------
 139 ;       PRINTER AND RS232 TIME-OUT VARIABLES          :
 140 ;------------------------------------------------------
 141 PRINT_TIM_OUT   DB      4 DUP(?)
 142 RS232_TIM_OUT   DB      4 DUP(?)
 143 ;----------------------------------------
 144 ;       ADDITIONAL KEYBOARD DATA AREA   :
 145 ;----------------------------------------
 146 BUFFER_START    DW      1 DUP(?)
 147 BUFFER_END      DW      1 DUP(?)
 148 ;---------------------------------------
 149 ;       ADDITIONAL FLOPPY DATA         ;
 150 ;---------------------------------------
 151         ORG     8BH
 152 LASTRATE        DB      1 DUP(?)        ; LAST DATA RATE SELECTED
 153 PAGE
 154 ;---------------------------------------
 155 ;       ADDITIONAL HARD FILE DATA      :
 156 ;---------------------------------------
 157         ORG     8CH
 158 HF_STATUS       DB      1 DUP(?)        ; STATUS REGISTER
 159 HF_ERROR        DB      1 DUP(?)        ; ERROR REGISTER
 160 HF_INT_FLAG     DB      1 DUP(?)        ; HARD FILE INTERRUPT FLAG
 161 HF_CNTRL        DB      1 DUP(?)        ; COMBO HARD FILE/FLOPPY CARD BIT 0=1
 162 ;----------------------------------------
 163 ;       ADDITIONAL DISKETTE AREA       :
 164 ;----------------------------------------
 165         ORG     90H
 166 DSK_STATE       LABEL   BYTE
 167                 DB      1 DUP(?)        ; DRIVE 0 MEDIA STATE
 168                 DB      1 DUP(?)        ; DRIVE 1 MEDIA STATE
 169                 DB      1 DUP(?)        ; DRIVE 0 OPERATION START STATE
 170                 DB      1 DUP(?)        ; DRIVE 1 OPERATION START STATE
 171 DSK_TRK         DB      1 DUP(?)        ; DRIVE 0 PRESENT CYLINDER
 172                 DB      1 DUP(?)        ; DRIVE 1 PRESENT CYLINDER
 173                 DB      1 DUP(?)        ; RESERVED
 174 ;----------------------------------------                               AEV
 175 ;       ADDITIONAL KEYBOARD FLAG FOR KBX:                               AEV
 176 ;----------------------------------------                               AEV
 177         ORG     96H                     ;                               AEV
 178 KB_FLAG_3       DB      1 DUP(?)        ;                               AEV
 179 ;----------------------------------------
 180 ;       ADDITIONAL KEYBOARD LED FLAG    :
 181 ;----------------------------------------
 182         ORG     97H
 183 KB_FLAG_2       DB      1 DUP(?)
 184 PAGE
 185 ;----------------------------------------
 186 ;       REAL TIME CLOCK DATA AREA       :
 187 ;----------------------------------------
 188         ORG     98H
 189 USER_FLAG       DW      1 DUP(?)        ; OFFSET ADDR OF USERS WAIT FLAG
 190 USER_FLAG_SEG   DW      1 DUP(?)        ; SEG ADDR OF USER WAIT FLAG
 191 RTC_LOW         DW      1 DUP(?)        ; LOW WORD OF USER WAIT FLAG
 192 RTC_HIGH        DW      1 DUP(?)        ; HIGH WORD OF USER WAIT FLAG
 193 RTC_WAIT_FLAG   DB      1 DUP(?)        ; WAIT ACTIVE FLAG
 194 DATA    ENDS
 195 ;----------------------------------------
 196 ;       EXTRA DATA AREA                 :
 197 ;----------------------------------------
 198 XXDATA  SEGMENT AT 50H
 199 STATUS_BYTE     DB      1 DUP(?)
 200 XXDATA  ENDS
 201 ;----------------------------------------
 202 ;       VIDEO DISPLAY BUFFER            :
 203 ;----------------------------------------
 204 VIDEO_RAM       SEGMENT AT 0B800H
 205 REGEN   LABEL   BYTE
 206 REGENW  LABEL   WORD
 207         DB      16384 DUP(?)
 208 VIDEO_RAM       ENDS