IBM AT 5170 Technical Reference page 238

IBM Personal Computer MACRO Assembler V.rslon 2.00 1-9
TEST2 ---- 06/10/85 POST TESTS ANO INITIALIZATION ROUTINES
06-10-85
8 •• PAGE
8 •• 1----- ENTRY FROM SHUTDOWN
8.7
868 0420
SHUT2:
8.9
B70
:
-
--- - - --- -
-------
-- -- - - -
- -
- ------- --- - - - - --- --------- - ­
871
j
TEST .20
872
I
ADDITIONAL PROTECTED (VIRTUAL MODE) TEST
873
l DESCRIPTION
87'
; THE PROCESSOR IS PUT IN PROTECTED MODE AND
875 THE FOLLOWING FUNCTIONS ARE VERIFIED
87.
8" !.
VER I FY PROTECTED MODE
878
THE MACHINE STATUS IS CHECK FOR VIRTUAL MODE
879
2. PROGRAMMED I NTERRUPT TEST
BBO AN PROGRAMMED INTERRUPT 32
I
S I SSUED AND
88'
AND VERIFIED
B82 3. EXCEPT I ON INTERRUPT 13 TEST
883 A DESCR I PTOR SEGMENT LIM I TIS SET TO ZERO
88.
AND A WRITE TO THAT SEGMENT IS ATTEMPTED
88.
AN EXCEPT I ON 13 I S EXPECTED AND VER I F I ED
88. 4. LOT/SOT LTR/STR TEST
887
LOAD LOT REG I STER AND VER
I FY
CORRECT
888 LOAD TASK REG I STER AND VER I FY CORRECT
BB9 THEY ARE VERIFIED VIA THE STORE INSTRUCTION
890
THE CONTROL FLAGS OF THE 286 FOR DIRECTION
891
ARE VER IF! ED V I A THE STD AND CLD COMMANDS
B92 IN PROTECTED MODE
B93
BOUND INSTRUCTION TEST (EXCEPTION lNT 5~
89. CREATE A SIGNED ARRAY INDEX WITHIN AND
895 OUTSIDE THE LIMITS. CHECK THAT NO EXC INT
9"
89. IF WITHIN LIMIT AND THAT AN EXC INT 5
897
OCCURS I F OUTS I DE THE LI MITS.
898
1. PUSH ALL POP ALL TEST
899 SET GENERAL PURPOSE REGISTERS TO DIFFERENT
I
900
VALUES, I SSUE A PUSH ALL, CLEAR THE REG I STERS:
THEN I SSUE A POP ALL AND VER I FY CORRECT. :
902
8. CHECK THE VERR/VERW INSTRUCTIONS
903 THE ACCESS BYTE I S SET TO REAO ONLY THEN TO
90'
A WRITE ONLY AND THE VERR/VERW INSTRUCTIONS
905
ARE VERIFIED.
9. CAUSE AN INTERRUPT 13 VIA A WRITE TO A
907
READ ONL'( SEGMENT
.08
10. VER I FY THE ARPL I NSTRUCTI ON FUNCTI ONS
'0.
.0.
SET THE RPL F'I ELO OF A SELECTOR AND
.10
VER 1FY THAT CURRENT SELECTOR RPL I S SET
CORRECTL'( •
.
. ,2
"
11. VERIFY THE LAR INSTRUCTION FUNCTIONS
9'3 12. VERIFY THE LSL INSTRUCTION FUNCTIONS
9,.
13. LOW MEG CH I P SELECT TEST
:
-----­
.,.
.,.
917 0420 E9 0000 E
JMP POST3 GO TEST THE 286 PROTECTED MODE
"8
.,.
FAILURE ENTRY FROM A SHUTDOWN
'20
921 0423 E8 0000 E
SHUTll CALL DDS ESTABLISH THE DATA SEGMENT
922 0426 E4 80
IN
CHECK FOR CH I P SELECT ERROR
923 0428 3C 35 CM.
~t: ~~~_PORT
924 042A BE 0000 E
MDV SI,OFFSET El09 PR J NT ERRDR 109
925 0420 14 00
JZ SHUT78
GO IF NOT
926 042F BE 0000 E SHUT7A: MOV
SI,OFFSET El04 PROTECTED MODE FA I LEO
927
928 043280 OE 0016 R 02
DR
<><><> <> <> <> <> <><><> <><> <> <> <>
'29 <><>
VIRTUAL MODE FAILED
<><>
.30
931 0431 E8 0000 E CALL
E MSG PRINT MESSAGE
932 043A EB 08 JM.
SHORT SHUT6
933 043C E8 0000 E
SHUT1B: CALL E_MSG ; PRINT MESSAGE
.3.
935 043F 80 OE 0016 R 04 <><><> <> <> <> <> <><> <><> <> <> <> <>
93. <><> LOW MEG CH I P SELECT
'37
938
1----- PROTECTED MODE TEST PASSED ENTRY FROM A SHUTDOWN
93'
940 0444 E8 0000 E
SHUT6: CALL 005 PROTECTED MODE TEST PASSED
941 0441 2B CO
5U8 AX,AX CLEAR KEYBOARD STATE FLAGS
942 0449 A3 0011 R
MOV WORD PTR OKS FLAG, AX
943 044C B9 OOOE
MOV
CX,OEH -
CLEAR PAGE REG
I
STERS
944 044F SA 0082
MOV OX ,DMA_PAGE+ 1
945 0452 CLR LOOP:
946 0452 2A CO
- SUB
AL,AL
947 0454 EE
OUT DX.AL
948 0455 42
INC DX
949 0456 E2 FA
LOOP
CLR_LOOP
950
..
,
952 TEST. 21
'53
j
KEYBOARD TEST
.5.
: DESCR I PTI ON
.55
RESET THE KEYBOARD AND CHECK THAT SCAN
CODE "AA" 1S RETURNED TO THE PROCESSOR.
'5.
CHECK FOR STUCK KEYS.
958
'5'
959
960 0458
BO
35 MDV AL,35H
<> <><> <> <><> <> <><> <><> <>
961 045A E6 80
OUT
MFG_PORT. AL
<><>
CHECKPO
I
NT 35
<><>
9.2
963 045C F6 06 0012 R 20 TEST Q!lMFG TST, MFG LOOP MANUFACTUR ING BURN I N TEST MODE?
"NZ
964 0461 15 03
F1 A- ­
965 0463 E9 0516 R
JM. F1- ; YES SK I P KEYBOARD TEST
966 0466 80 3E 0012 R 64
F1_A: CMP BYTE PTR "RESET FLAG. 064H ; MANUF ACTUR I NG RUN I N MODE
7
"NZ
961 046B 15 03
F1 B ­
968 0460 E9 0516 R JMP F7- YES SKIP KEYBOARD TEST
969 0410 BO 36 F1_B: MOV
AL,361-1
<> <><><><><><><><><><><>
910 0412 E6 80 OUT
MFG_PORT, AL
<><>
CHECKPO I NT 36
<><>
971 0414 FA
CLI
912 041581 3E 0012 R 1234
CM.
_RESET FLAG,1234H SOFT RESET1
913 041B 14 11
JZ
GIO ­
914 0410 80 3E 0072 R AA CM.
BYTE PTR IllRESET FLAG,KB OK : CHECK FOR AA ALREADY RECEIVED
975 0482 14 10
JZ
G I 0 - - GO I F YES
916 0484 BO AE
MOV AL,ENA KBD
911 0486 E8 0000 E
CALL C8042 - ; ENABLE KEYBOARD
918 0489 81 04
MOV BH,4 ; TRY 4 TIMES
5-66
TEST2