IBM PC CONVERTIBLE Technical Reference page 200

00B9 A1 0010 R
OOBC F6 C4 20
OOBF 74 19
00C1 E4 7F
00C3 A8 40
00C5 75 09
00C7 B4 17
00C9 E8 0000 E
OOCC A8 02
OOCE 74 OA
0000 8A C3
0002 E8 0000
0005 72 03
0007 E9 01BB R
OODA
OODA BB 0002
0000 E8 0000
OOEO BO 80
00E2 E9 01BD R
00E5 B4 17
00E7 E8 0000
OOEA 8A F8
OOEC FE C4
OOEE E8 0000
00F1 8A 08
00F3 FE C4
00F5 52
00F6 E8 0000
00F9 8A DO
OOFB FE C4
OOFD E8 0000
0100 8A FO
0102 B1 3C
0104 8B C2
0106 F6 F1
0108 8A E8
a
lOA B4 1B
010C E8 0000
010F 8A DO
0111 FE C4
0113 E8 0000
0116 8A FO
0118 51
0119 B1 3C
011B 92
onc
F6 F1
011E 59
011F 8A C8
0121 5A
0122 E9 01BB R
CHECK TO SEE I F MODEM IS PRESENT
MOV
TEST
JZ
AX, EQU I P _FLAG
AH,20H
MODEM_ERROR
GET EQUIPMENT FLAG
TEST MODEM INSTALLED BIT
EXIT WITH ERROR
IF PRESENT, CHECK BATT PWR AND MODEM POWER-ON-BATT ALLOWED BIT
IN
TEST
JNZ
MOV
CALL
TEST
JZ
AL,PWR_STAT
AL, EXLPWR
MPROFl
AH, RTCSYS_PROF1
GELRTCREG
AL,MODEM_BATT
MODEM_ERROR
EXTERNAL POWER?
YES, SKIP NEXT TEST
FIND PWR_ON_BATT BIT
FROM PROFILE
IS BATT PWRED MODEM OK?
NO, TURN OFF MODEM
SET UP CONFIG DATA IN AL, AND CALL SET ROUTINE
MPROFl :
CALL
JC
JMP
MOV
MODEMJONFIG
MODEM_ERROR
SPROF _EXIT
AL,BL GET CONFIG INPUT DATA
AND DO IT
ERROR OUT I F PROBLEM
INT RETURN
ERROR FOUND IN CONFIGURING MODEM, TURN OFF AND EXIT
MODEM_ERROR:
MOV BX, 0002H
CALL COM_POWER
MOV AL,80H
JMP SPROF _OUT
READ PROFILE ONLY
MODEM POWER OFF
NOW
ERROR RETURN
SPROF _READ: MOV AH,RTCSYS_PROF1 GET HIGH PROF BYTE
CALL GELRTCREG
MOV BH,AL
INC AH
CALL GELRTCREG
MOV BL,AL
INC AH
GET LCD TIMEOUT VALUE
PUSH
CALL
MOV
INC
CALL
MOV
MOV
MOV
DIV
MOV
OX
GELRTCREG
DL ,AL
AH
GELRTCREG
DH,AL
CL,60
AX,DX
CL
CH,AL
GET SYSTEM OFF TIMEOUT VALUE
MOV
CALL
MOV
INC
CALL
MOV
PUSH
MOV
XCHG
DIV
POP
MOV
POP
JMP
MODIFY PROFILE
AH, RTCSYS_I NACT
GELRTCREG
DL,AL
AH
GELRTCREG
DH,AL
CX
CL,60
AX,DX
CL
CX
CL,AL
OX
SPROF _EXIT
SAVE OX
GET DISPLAY TIMEOUT (LO)
GET DISPLAY TIMEOUT (HI)
DIVIDE TO GET MINUTES
SAVE TIMEOUT IN SECS
GET SYSTEM INACTIVITY VALUE
GET DISPLAY TIMEOUT (LO)
GET DISPLAY TIMEOUT (HI)
SAVE CX REG
DIVIDE TO GET MINUTES
RESTORE CX
SAVE TIMEOUT IN SECS
RESTORE OX REGISTER
ROM BIOS 2-175