IBM 5170 Technical Reference page 177

015E
0000 E OW SHUT3
SHUT DOWN WITH MEMORY ERROR
0160 0000 E
ow
SHUT4
SHUT DOWN WITH BOOT LOADER REQUEST
0162
0171 R
ow
SHUT5
JMP DWORD REQUEST (WITH INTERRUPT INIT)
0164 0000 E
ow
SHUT6 PROTECTED MODE TEST7 PASSED
0166 0000 E DW SHUT7
PROTECTED MODE TEST7 FAI LED
0168
07F7 R
ow
SHUT8
PROTECTED MODE TESTl FA I LED
016A 0000 E
ow
StJUT9
BLOCK MOVE SHUTDOWN REQUEST
016C 0170 R
ow
SHUTA
JMP DWORD REQUEST (W/O INTERRUPT INIT)
016E EB 11 90 SHUTO: JMP
C7
;------­ 10_ROM_INIT MUST BE INITIALIZED BY THE USER
FLUSH THE KEYBOARD BUFFER
0171 E4 64 SHUT5 : IN AL, STATUS PORT
CHECK I F OUTPUT BUFFER FULL
0173
0175
A8 01
74 02
TEST
JZ
AL, OUT BUF FULL
SHUT5B­ -
GO I F NOT
0177 E4 60 IN AL, PORT A
FLUSH
0179 BO 20
SHUT5B:
MOV
AL, EO I - FLUSH LAST TIMER TICK
~
017B E6 20
OUT
INTAOO,AL
-TO ALLOW TIMER INTERRUPTS
0170
FF 2E 0067 R SHUTA:
JMP
OWORD PTR OS: 10_ROM_INIT;
; ----­ CHECKPO I NT 1
0181
0183
BO 01
E6 80
C7:
MDV
OUT
AL,OlH
MFG_PORT, AL
<><><><><><><><><><><><>
<><><>CHECKPOINT 1<><><>
;----- READ/WRITE THE X286 GENERAL AND SEGMENTATION REGISTERS
WITH ALL ONE'SANO ZEROES'S.
0185 B8 FFFF MOV AX,OFFFFH
SETUP ONE'S PATTERN IN AX
0188
F9
STC
SET CARRY FLAG
0189
73 21
JNC
ERROl GO I F NO CARRY
018B 8E 08 C8: MOV DS,AX
WRITE PATTERN TO ALL REGS
0180 8C DB
MOV
BX,OS
018F 8E C3 MOV ES,BX
0191 8C Cl MOV CX, ES
0193
8E 01
MOV
SS,CX
0195 8C 02 MOV OX, SS
0197
8B E2
MOV
SP, OX
0199
8B EC
MOV
BP, SP
019B 8B F5 MOV SI, BP
0190
8B FE
MOV
DI,SI
019F 73 07 JNC
C9
01Al 33 C7 XOR AX,DI
PATTERN MAKE IT THRU ALL REGS
01A3 75 07
JNZ
ERROl
NO - GO TO ERR ROUT I NE
01A5
Fa
CLC
CLEAR CARRY FLAG
01A6 EB E3 JMP
ca
01A8
C9: TSTlA
01A8 DB C7
OR AX, 0 I ZERO PATTERN MAKE IT THRU?
01AA 74 01
JZ C10A YES - GO TO NEXT TEST
01AC
F4 ERROl: HLT ; HALT SYSTEM
;------- INSURE THAT CMOS CLOCK INTERRUPTS ARE DISABLED
01AD BO 8B
C10A:
MOV
AL, CMOS_ALARM
OlAF E6 70 OUT
CMOS_PORT, AL
01Bl EB 00 JMP SHORT $+2
01 B3
E4 71
IN
AL,CMOS_PORT+1 GET THE CURRENT CONTROL REG
01B5 86 C4 XCHG AL,AH
SAVE r T
01B7 80 E4 07
AND
AH,07H
CLEAR SET, PIE, A I E, AND SQWE BITS
01BA BO 8B MOV
AL, CMOS_ALARM
01BC E6 70
OUT
CMOS_PORT, AL
01BE 86 C4
XCHG AL,AH
01CO
EI3 00 JMP SHORT $+2
10 DELAY
01C2 E6 71 OUT
CMOS_PORT+1,AL
~.
01C4 EB 00 JMP
SHORT $+2 10 DELAY
01C6 BO 8C MOV AL, CMOS_ALARM+l
CLEAR PEND I NG INTERRUPT
01C8 E6 70
OUT CMOS PORT, AL
01CA EB 00 JMP
StJORT $+2 10 DELAY
01CC E4 71 IN AL,CMOS_PORT+1
;-------- RESET VIDEO
ASSUME OS: DATA
01CE Ba
---- R
MOV AX, DATA
OlD1
8E 08
MOV
OS,AX
SET DATA SEGMENT
0103 81 3E 0072 R 1234 CMP RESETJLAG,1234H
SOFT RESET?
0109
74 DB
JZ
SFT_RST GO IF YES
010B 2A CO SUB
AL,AL
0100
BA 0308 MOV OX,3D8H
01 EO
EE
OUT
DX,AL
o I SABLE COLOR V IDEO
01 El FE CO
INC
AL
01 E3 B2 B8 MOV DL,OB8H
01E5
EE OUT DX,AL
o I SABLE B/W V IDEO, EN HIGH RES
01 E6 BO FC
SFT RST:MOV AL,11111100B
o I SABLE PAR I TY CHECKERS
01 E8
E6 61
- OUT
PORT_B,AL
TEST.02
; VER I FY CMOS SHUTDOWN BYTE
; DESCRI PTION
ROLLING BIT WRITTEN AND VERIFIED
AT SHUTDOWN ADDRESS
;----- VERIFY AND CLEAR SHUTDOWN FLAG
OlEA BO 02 MOV
AL,2
; <><><><><><><><><><><>
01EC E6 80 OUT
MFG_PORT, AL
; <><><>CHECKPO I NT 2<><>
01 EE
B9 0009 MOV
CX,09H LOOP COUNT
OlF1
B4 01 MOV AH,1
START WITH BIT 0
01 F3
BO 8F C10B:
MOV
AL, SHUT _DOWN
OlF5 E6 70 OUT
CMOS_PORT,AL
OlF7 8A C4 MOV
AL,AH
OUTPUT ROLLI NG BIT
OlF9
EB 00 JMP SHORT $+2
10 DELAY
01 FB E6 71 OUT
CMOS_PORT+1,AL
01 FO BO 8F MOV
AL, SHUT_DOWN
READ CMOS
OlFF EB 00 JMP
SHORT $+2 10 DELAY
0201
E6 70 OUT CMOS_PORT, AL
0203 EB 00
JMP SHORT $+2
10 DELAY
0205 E4 71
IN AL,CMOS_PORT+1
0207
3A C4 CMP AL,AH
MUST BE THE SAME
0209 75 A1 JNZ
ERROl ERROR I F NOT
020B DO 04
RCL AH,1
,..-.."
ROLL A BIT THRU SHUT DOWN
0200 E2 E4
LOOP C10B
LOOP TILL DONE
TEST.03
ROS CHECKSUM TEST t
DESCR I PT I ON
A CHECKSUM I S DONE FOR THE 32K
ROS MODULES CaNT A I N I NG POD AND
Test 1
5-35