Table of Contents
Advertisement
POWER ON RESET VECTOR
CARR I AGE RETURN, LINE FEED SUBROUT I NE
IBM Personal Computer MACRO Assembler
Version 2.00
POST ----- 01/10/86
SYSTEM POST AND BIOS PROCEDURES
5-109
LOW WORD OF RESET
SEGMENT
SEND CR,LF TO FIRST PRINTER
ASSUME FIRST PRINTER
(DX= 0)
GET THE PR I NT CHARACTER COMMAND AND
THE CARR I AGE RETURN CHARACTER
NOW GET THE LINE· FEED AND
.
SEND I T TO THE B I OS PR I NTER ROUT I NE
ERROR EXIT
GET CURSOR POS I T I ON
INDICATE REQUEST CURSOR SET
CURSOR POS I T I ON RESTORED
BLOCK INTERRUPTS TILL STACK CLEARED
SET ERROR FLAG
EX I TROUT! NE
RESTORE ALL THE REG I STERS USED
; RELEASE MARKER
ROUT I NE BUSY EX I T
; RETURN WITH I NIT I AL I NTERRUPT MASK
POST (01/10/86)
1-26
01-10-86
OFFFOH
o
IFFOH
ORG
ORG
PROC
NEAR
XOR
DX,DX
MOV
AX,CR
INT
17H
MOV
AX,LF
INT
17H
RET
ENDP
DB
'01/10/86'
ORG
OFFFEH
ORG
o
IFFEH
MODEL:
DB
MODEL_BYTE
CODE
ENDS
END
CRLF
;----- POWER ON RESET
P 0 R
LABEL
FAR
-
-
DB
OEAH
OW
OE05BH
OW
OFOOOH
CRLF
PAGE
lFCC
PR160:
lFCC 5A
POP
OX
lFCD B4 02
MOV
AH,02H
lFCF CD 10
INT
10H
lFDl
PR170:
IFDI FA
CLI
IFD2 C6 06 0100 R FF
MOV
.STATUS_BYTE,OFFH
IFD7
PR180:
lFD7 5A
POP
OX
lFD8 59
POP
CX
lFD9 5B
POP
BX
IFDA 58
POP
AX
IFDB
PR190:
IFDB IF
POP
OS
I FDC CF
IRET
lFDD
PR I NT_ SCREEN
-
I
ENDP
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777 IFDD
2778
2779 I FDD 33 02
2780
I FDF B8 0000
278 I
1FE2 CD I 7
2782 1FE4 B8 OOOA
2783 lFE7 CD 17
2784 lFE9 C3
2785 IFEA
2786
2787
2788
2789
2790
2791
IFFO
2792
2793
2794 1FFO
2795 1FFO EA
2796 I FF I E05B
2797
I FF3 FOOO
2798
2799 IFF5 30 31
2F 31
30 2F
2800
38 36
2801
2802
2803 I FFE
2804 IFFE
2805 lFFE FB
2806
2807 1FFF
2808
- Quick Links:
- Section 1. System Board
- 64/256K System Board
Hide quick links:
Advertisement
Chapters
Table of Contents
