IBM XT 5160 Technical Reference page 234

PAGE
DETERM I NE CONF I GURAT ION AND MFG. MODE
5-87
IN BX
; SAVE MEMORY SIZE
MAKE AX=OOOO
STORE 32K WORDS OF 0000
STORAGE OK, DETERM I NE SIZE
SAVE FAILING BIT PATTERN
<> <> <> <> <> <> <> <> <> <> <> <>
<><><>CHECKPO I NT 4<><><>
BASE RAM FA I LURE - HANG
FL I PP I NG BETWEEN 04 AND
FAILING BIT PATTERN
RECOVER DATA SEG
GET SW I TCH INFO
ISOLATE SW ITCHES
SAVE
ENABLE OTHER BANK OF SWS.
; SET SEG. REG.
TEST PATTERN
SAVE PATTERN
SEND PATTERN TO MEM.
; PUT SOMETH I NG I N AL
; GET PATTERN
; COMPARE PATTERNS
; GO END I F NO COMPARE
; SET COUNT FOR 8K WORDS
; FILL 8K WORDS
; PO I NT TO NEXT I 6KB BLOCK
; BUMP COUNT BY 16K8
; TOP OF RAM AREA YET? (AOOOO)
; ALLOW RAM CHARGE T I ME •
; GET STACK VALUE
; SET THE STACK UP
; STACK I S READY TO GO
; SETUP ADDR TO I NTR AREA
FILL ALL 32 INTERRUPTS
FIRST INTERRUPT LOCATION
SET ES=OOOO ALSO
MOVE ADDR OF I NTR PROC TO TBL
; GET ADDR OF I NTR PROC SEG
; VECTBLO
I MOVE VECTOR TABLE TO RAM
; SK I P SEGMENT PO INTER
POST (01/10/86)
1-4
01-10-86
AX,AX
STOSW
AX, STACK SS
SS,AX -
SP, TOS
AX,CS
DATA WORD[ORESET FLAG-DATA40) ,BX ; RESTORE RESET FLAG
BP , K8X - ; I S THE KBX BIT THE ONLY ONE ON?
C24C ; IF NOT THEN THIS MUST BE A P.O.R.
BP , BP ; I F P.O. R. THEN I N I TI ALI ZE TH I S TO ZERO
DATA_WORD[OKB_FLAG_3-DATA40) ,BP ; RESTORE RESET FLAG
BP,BP ; BP I S USED LATER AS AN ERROR INDICATOR
DX,0400H ; SET POINTER TO JUST>16KB
BX,16 ; BASIC COUNT OF 16K
~~:g~i~-:g~gl:~~S~~A~L~~~~~~:ci~);; S ;e~EK~~~~~~DF~~~~
CX,08000H - - ; SET FOR 32K WORDS
BX,1234H ; WARM START?
CLR STG
SP, OFFSET C2
STGTST CNT
HOW BIG
BL,AL
AL,04H
PORT A,AL
CX,CX
C24B
BL,AL
C24A
ES,DX
DI,DI
AX,OAA55H
CX,AX
ES: [DI) ,AX
AL,OFH
AX,ES: [DI)
AX,CX
HOW BIG END
CX,2000H
STOSW
DX,400H
BX,I6
DH,OAOH
FILL_LOOP
D3
DS
CX,32
DI,DI
ES,DI
AX,OFFSET Dll
DI
DI
D3A
DI,OFFSET OVIDEO INT
CS -
DS ; SETUP ADDR OF VECTOR TABLE
SI,OFFSET VECTOR TABLE+16 ; START WITH VIDEO ENTRY
CX,l6 -
DS
DS
AL,PORT C
AL.OOooTlllB
AH,AL
AL, 10 10 1 10 1B
PORT_B.AL
MOV
MOV
MOV
PUSH
MOV
SUB
MOV
MOV
STOSW
MOV
STOSW
LOOP
POP
PUSH
IN
AND
MOV
MOV
OUT
SETUP STACK SEG AND SP
LODSW
LODSW
LODSW
LODSW
;----- DETERMINE MEMORY SIZE AND FILL MEMORY WITH DATA
;----- ESTABLISH BIOS SUBROUTINE CALL INTERRUPT VECTORS
MOV
PUSH
POP
MOV
MOV
MOVSW
INC
INC
LOOP
; BASE 64K READ/WR I TE STORAGE TEST
; DESCRIPTION
WR I TE/READ/VER IFY DATA PATTERNS
AA,55,FF,01, AND 00 TO 1ST 64K OF
STORAGE. VER I FY STORAGE ADDRESSAB I L I TY •
C24C:
.
---------
-
---
- -
-
-
--
----- --
--- ---
----
---------
-----
----
--
; I NIT I AL I ZE THE 8259 I NTERRUPT CONTROLLER CH I P
~~~ ~---- ~~~
- - - -
-~~ ~ ~;~
- - - - - - - - ---- - - ---
-~-~~;~-:-~~~~ ~
-
~~GL,
I CW4
OUT I NTAOO, AL
MOV AL,8 ; SETUP ICW2 - INT TYPE 8 (8-F)
OUT INTA01,AL
MOV AL,9 ; SETUP ICW4 - BUFFRD,8086 MODE
OUT INTA01,AL
MOV AL, OFFH MASK ALL I NTS. OFF
OUT INTA01,AL (VIDEO ROUTINE ENABLES INTS.)
; - - - - - SET UP THE I NTERRUPT VECTOR S TO TEMP INTERRUPT
MOV
SUB
MOV
MOV
FILL LOOP:
- MOV
SUB
MOV
MOV
MOV
MOV
MOV
XOR
JNZ
MOV
REP
ADD
ADD
CMP
JNZ
HOW BIG END:
- -MOV
MOV
MOV
MOV
CMP
JE
MOV
JMP
C24: JE
MOV
MOV
C24A: OUT
SUB
C24B: LOOP
XCHG
JMP
CLR STG:
- SUB
REP
HOW BIG:
- MOV
CMP
JE
SUB
D3:
D3A:
338
339
340
341
342
343
344
345
346
347 0166 AO
348 0167 AO
349 0168 AO
350 0169 AD
351
352
353
354 016A 8B IE 0472 R
355 01 6E 8B 2E 0496 R
356 0172 B9 8000
357 0175 81 FB 1234
358 0179 74 16
359 01 7B BC 0018 R
360 01 7E E9 OCCF R
361 0181 74 12
362 0183 8A D8
363 0185 BO 04
364 0187 E6 60
365 0189 2B C9
366 01 8B E2 FE
367 01 8D 86 D8
368 01 8F EB F6
369 0191
370 0191 2B CO
371 0193 F3/ AB
372 0195
373 0195 89 IE 0472 R
374 0199 83 FD 10
375 019C 74 02
376 0 19E 2B ED
377 01AO
378 01AO 89 2E 0496 R
379 01A4 2B ED
380 01 A6 BA 0400
38 1 0 1A9 BB 00 10
382 01 AC
383 01 AC 8E C2
384 01 AE 2B FF
385 0 I BO B8 AA55
386 01 B3 8B C8
387 01B5 26: 89 05
388 01 B8 BO OF
389 OIBA 26: 8B 05
390 01 BD 33 C I
391 01 BF 75 1 1
392 01 C 1 B9 2000
393 01 C4 F3/ AB
394 01 C6 81 C2 0400
395 01 CA 83 C3 10
396 01 CD 80 FE AO
397 01DO 75 DA
398 0 I D2
399 01 D2 89 IE 0413 R
400
401
402
403 01 D6 B8 0030
404 0 1D9 8E DO
405 01 DB BC 0100
406
407
408
409 01 DE BO 13
410 OlEO E6 20
41 1 01 E2 BO 08
41 2 0 1E4 E6 2 1
413 01 E6 BO 09
414 0 1E8 E6 21
41 5 OlEA BO FF
41 6 0 1EC E6 2 1
417
418
419
420 0 lEE IE
421 01EF B9 0020
422 01F2 2B FF
423 01F4 8E C7
424 01 F6 B8 1F23 R
425 0lF9 AB
426 01 FA 8C C8
427 01FC AB
428 01FD E2 F7
429
430
431
432 01 FF BF 0040 R
433 0202 OE
434 0203 1F
435 0204 BE 1F03 R
436 0207 B9 00 I 0
437 020A A5
438 020B 47
439 020C 47
440 020D E2 FB
441
442
443
444
445 020F 1F
446 0210 IE
447 0211 E4 62
448 0213 24 OF
449 0215 8A EO
450 0217 BO AD
45 I 0219 E6 6 I
IBM Personal Computer MACRO Assembler Version 2.00
POST ----- 01/10/86 SYSTEM POST ANO BIOS PROCEOURES