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IBM Personal Computer MACRO Assembler
Version 2.00
HEADER --- 01/08/86
POWER ON SELF TEST
(POST)
1-1
01-10-86
PAGE 118,121
TITLE HEADER - - -
01 /08/86
POWER ON SELF TEST (POST)
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:LlST
BIOS I/O INTERFACE
THESE LISTINGS PROVIDE INTERFACE INFORMATION FOR ACCESSING
THE B I OS ROUT I NES.
THE POWER ON SELF TEST I S INCLUDED.
THE
B I OS
ROUT I NES
ARE
MEANT
TO
BE
ACCESSED
THROUGH
SOFTWARE
INTERRUPTS
ONL Y •
ANY
ADDRESSES
PRESENT
IN
THESE
LISTINGS
ARE
INCLUDED
ONLY
FOR
COMPLETENESS,
NOT
FOR
REFERENCE.
APPL I CAT IONS
WH I CH
REFERENCE
ANY
ABSOLUTE
ADDRESSES
WITHIN
THE
CODE
SEGMENTS
OF
BIOS
V 10LATE
THE
STRUCTURE
AND
DES I GN
OF
B I OS •
PR I NTER ADAPTER B I OS
- NULL DEV I CE OPEN HANDLER
-
NULL DEV I CE CLOSE HANDLER
- NULL PROGRAM TERM I NAT I ON
-
JOYST I CK PORT HANDLER
-
NULL SYSTEM REQUEST KEY
-
EXTENDED MEMORY SIZE DETERM I NE
-
NULL DEV I CE BUSY HANDLER
- NULL I NTERRUPT COMPLETE HANDLER
DEV OPEN
DEV-CLOSE
PROG TERM
JOY STICK
SYS-REQ
EXT-MEMORY
DEVICE BUSY
I NT_COMPLETE
INTERRUPT 15H B I OS ROUT I NES
VIDEO BIOS
B I OS I NTERRUPT ROUT I NES
COMMUNICATIONS BIOS FOR RS232
KEYBOARD B I OS
KEYBOARD 10 I
-
I NT 16H B I OS ENTRY
KB I NT , -
-
- HARDWARE INTERRUPT
SND_DATA
- KEYBOARD TRANSMI SS ION
I
I
I
I
I
I
DISKETTE B I OS
I
01 SKETTE 10 1 -
INT 13H BIOS ENTRY
(40H)
-INT 13H I
DISK I NT-' -
- HARDWARE I NTERRUPT HANDLER - I NT OEH I
DSKETTE_SETUP - POST SETUP DR I VE TYPES
I
I
I
-INT 16H I
-INT 09H I
I
I
-INT 17H I
I
-INT 14H I
I
-INT 10H I
I
-INT 15H I
I
I
I
I
I
I
I
I
I
I
POST
-
POWER ON SELF TEST
&
I NIT I ALI ZAT I ON I
T I ME OF DAY
1 -
T I ME OF DAY ROUT I NES
- I NT 1AH I
PR I NT SCREEN 1 - PR I NT SCREEN ROUT I NE
- I NT 05H I
T I MER-I NT 1
-
T I MER 1 I NTERRUPT HANDLER
->
I NT 1CH I
DDS
-
-
- LOAD (DSI)
WITH DATA SEGMENT
I
BEEP
-
SPEAKER BEEP CONTROL ROUT I NE
I
WAITF
-
FIXED TIME WAIT ROUTINE
I
I
DEF I NIT IONS
OAT A SEGMENT LOCAT IONS
COMMON EQUATES FOR POST AND BIOS
POST .ASM
V IDEO.ASM
BIOS1.ASM
RS232. ASM
PRT .ASM
KEYBRD.ASM
HEADER. ASM
-->
DSEG. INC
-->
POSTEQU. INC
-->
DSKETTE. ASM
MODULE REFERENCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
5-14
HEADER (01/10/86)
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- Section 1. System Board
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