IBM 5170 Technical Reference page 176

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00B3 Bl OS
~lOV
CI,S
lOAD CNT REG WITH SHIFT CNT
00B5 02 EC SHR AH,CL
Sill FT AF I NTO CARRY BIT POS
00B7 13 10 JNC ERR02 GO TO ERR ROUT I NE IF AF NOT SET
00B9 BO 40 ~lOV AL,IIOH SET TilE OF FLAG ON
OOBB Do EO SHL AL,1
SETUP FOR TEST I NG
OOBo 71 17 JNO ERR02
GO TO ERR ROUT
I
NE I F OF NOT SET
OOBF 32 E4 XOR AH,AH
SET AH
:0;
0
OOCl 9l SAIIF CLEAR SF, CF, LF, AND PF
00C2 76
12
,IBE ERR02 GO TO ERR ROUT I NE IF CF ON
CO TO ERR ROUTINE IF ZF ON
00C4 78 10 ERR02 CO TO ERR ROUTINE IF SF ON
00C6 7A OE ERR02 CO TO UlR fWUTINE IF PF ON
00C8 OF
lOAD FLAC I MAGE TO AH
00C9
Bl U'J LOAD CNT REC WITH SHIFT CNT
OOCB 02 FC
SHIFT 'AF' INTO CARRY BIT POS
OOCO 72 07
CO TO ERR ROUTINE IF ON
OOCF DO £4
CIlECI<. THAT - OF' I S CLEAR
0001 70 U3 GO TO ERR ROUT:NE IF ON
UOD3 EB 04 90 CaNT I NUE
0006
E9 01AC R
ERR02:
ERROR EXI T
0009
C7A:
0009 B8 ---­ R ~10V AX, DATA
SET DATA SEGMENT
OODC 8E 08
MOV
OS,AX
; ----- CIIECK FOR PROCESSOR SHUTDOWN
OODE
E464
CHECK FOR SHUrDOWN
OOEO A8 04
00E2 75 03
CO I F YES
00E4
E9 0181 R
; ------ CHEO, FOR SHUTDOWN
9
00E7 C7B:
00E7 BO 8F
CMOS ADOf{ FOR SHUTDOWN BYTE
00[9 [670
OUEB EB 00
10 DEI AY
OOEO
[I!
71 GET WHO
OOEF 86 C4
SAVE TIlE SHUTDOWN REQUEST
OOFl 80 FC 09 WAS I T SHUTDOWN REQUEST 9'1
00F4 74 3C
; BYPASS INIT OF INT CHI PS
RE-INITIAI IL£ THE 8259 INTERHUPT
111
CONTROLLER CHIP
00F6 2A CO SUB
INSURE MATH PROCrSSOR RESET
00F8 EG
F1 OUT
OOFA SO 11
MOV
ICWl - EDGE, MASTER, !CWlI
OOFC E6 20 OUT
OOFE
EB 00
JMP WAIT STAT[ rOR 10
0100 BO 08
MOV SETUP ICW2 - INT TYPE 8 (8-F)
0102 E6 21
OUT
0104 EB 00
,IMP
WAIT STAT[ FOR 10
0106 BO 04 MOV AL,OI.J.H
0108
E6 21
OUT
I NTAOl ,AL
OlOA EB 00 JMP SHORT $+2
OlOC BO 01
MOV
AL,OlH
OlOE
[6
21
OUT
INTA01,AL
0110 EB 00 JMP SHORT $+2
0112 BO FF
MOV
AL,OFFH
01111 E6 21
OUT I NTA01 ,AL
RE-INITIAI.!LE THE 8259 INTERRUPT #2 CONTROLLER CHI P
0116
no
11 MOV I CWl - EDGE, SLAVE I CW4
0118 E6 AO OUT
011A EB 00 JMP WAIT STATE FOR
10
011C BO 70 MOV SETUP ICW2 - INT TYPE
50
(50-5F)
011 E
E6 Al
OUT
0120 BO 02 MOV SETUP I CW3 - SLAVE I V 2
0122 EB 00 JMP
01211 E6 Al
OUT
0126 EB UO JMP 10 WAIT STATE
0128 BO 01 MOV SETUP ICW!I - 8086 MODE, SLAVE
012A
E6 Al OUT
012C
EI1
00 JMP WAIT STATE FOR 10
012E BO FF
MOV
MASK ALL I NTS. orr
0130 [6 Al
OUT
SHUTDOWN
RE1URN CONTROL AFTER A SHUTDOWN COMMAND IS ISSUED
DESCR I PT I ON
A TEST I S MADE rOR THE SYSTEM FLAG BE I NG SET, IF
TIlE SYSTEM FLAG I S SET, THE SHUTDOWN BYTE I N CMOS
IS USED TO DETERMINE WHERE CONTROL IS RETURNED.
SOFT RESET OR UNI·XPECTED SHUTDOWN
SHUT DOWN AFTER MEMORY SIZE
SHUT DOWN ArTER MEMORY TEST
SHUT DOWN '..I I
TJI
MEMORY ERROR
SHUT DOWN '..I I HI BOOT LOADER REQUEST
Jr~p OWURD REQUEST (WITH INT INIT)
PROTECTED ~lODE TEsn PASSED
PROTECTED ~lODE TEsn FAI LED
PROTECTED MODE TEST1 FAil ED
BLOCK MOVE
SHUT~OWN
REQU[ST
J~lP DWORD REQUEST ('..I/O INT INIT)
CHECK mOM WHERE
0132 80 8F C7C: MOV AL,SHUT DOWN CLEAR CMOS BY'I E
01311 E6 70 OUT CMOS_PORT, AI
0136
EB
00 JMP SHORT $+2 10 DELAY
0138 2A CO SUB AL, AL
SET BYTE TO 0
013A E6 71 OUT CMOS_PORT+l, AL
013C 86 EO XCIIG AH,AL
013E 3C OA
eMP AL,OAII
MAX TABLE ENTRYS
01110 77 2C
JA SIlUTO ; GO I
r
GREATER THAN MAX
0142 B[ 0158 R MOV S I, OFFSET BRANCH GET TIlE START OF BRANCH TAB I E
0145 03 Fa ADD SI,AX
01117 03 FU ADD 51 ,AX POI NT TO BRANCH ADDRESS
0149 2E: 88 lC MOV eX,cs:[Slj CET BRANCH TO lOX
011lC FA
eLi
01110 B8 ---- R MOV SET STACK
0150 8E DO MOV
0152 BC 0100 R MOV TOS
0155 FB
STI
0156 FF E3 JI>1P ex JUMP BACK
0158 016E R BRANCII: OW NORMAL POWER uP/UNEXPECTED SHUTDOWN
015A 09BO R DW SHUT DOWN AFTEh MGlORY SILE
015C 0000 E DW SHUT DOWN AFTUl MEMORY TEST
5-34 Test 1