IBM 5150 Technical Reference page 124

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LOC OBJ
LINE
SOURCE
0000 {4
0008 (4
0010 ???1
0012
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0013 1111
0015 ?11?
0017
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0080
0040
0020
0010
0008
0004
0002
0001
0018
??
0080
0040
0020
0010
0008
0019 11
QOlA 11?1
ODIC ????
ODIE (16
003E
0045
0046
,,3&
0010
003A
002A
0036
0052
0053
003E 1?
0080
G03F 11
0040
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0025
0041 11
0080
0040
0020
0010
0009
0008
0004
0003
0002
7.
ow
4 DUPI!) I ADDRESSES OF RS232 ADAPTeRS
7.
4 DUP(?I I ADDRESSES OF PRINTERS
.0
OW
I INSTAlLED HARDWARE
e1
DB I INITIALIZATION FLAG
e2
MEMORY_SIZE OW
; MEMORY SIZE IN K BYTES
e,
IO.RAN.SIZE OW
I MEMORY IN I/O CHANNEL
84 ; - - ------------------------------------- ­
85 KEYBOARD DATA AREAS
86 ; - --------------------------------------­
e7
KBJLAG DB
ee
89 ;----- SHIFT FLAG EQUATES WITHIN K8.FlAG
.,
n
INS_STATE EQU .OH
I
INSERT
STATE
IS
ACTIVE
CAPS_STATE EQU
40H
I C.6.PS LOCK STATE HAS BEEN TOGGLED
.,
NUM_STA.TE EQU ,OH ; HUH LOCK STATE HAS BEEN TOGGLED
94
SCROll..STATE EQU
10H I SCROLL LOCK STATE HAS BEEN TOGGLED
'5 ALT_SHIFT EQU
oeH
I ALTERNATE SHIFT KEY DEPRESSED
..
. .
CTl_SHIFT EQU
'4H
I
COKTROL SHIFT KEY DEPRESSED
.7
LEFT_SHIFT EQU O2H I lEft SHIFT KEY DEPRESSED
RIGHT_SHIFT EQU OlH
I RIGHT SHIft KEY DEPRESSED
100 DB I
SECON] BYTE Of KEYBOARD STArus
101
10.
INS_SHIFT EQU
e'H I INSERT KEY IS DEPRESSED
10' CAPS_SHIFT EQU
4'H
I CAPS lOCK KEY IS DEPRESSED
10.
NUt,-SHIFT EQU
20H I HUt
lOCK KEY IS DEPRESSED
105
SCROLI..-SHIFT EQU
lOH
; SCrfOll LOCK KEY IS DEPRESSED
106
HOLD_STATE EQU
,eH
I SUSPEND KEY HAS BEEN TOGGLED
107
lOe
ALT_INPUT DB ; STORAGE FOR ALTERNATE KEYPAD EKTRY
10' BUFFER_HEAD OW
I
POINTER TO HEAD OF KEYBOARD BUFfER
"' BUFFER_TAll
OW I
POINTER TO TAIL OF KEYBOARD BUFFER
111
KB_BUFFER
OW
16
DUPI?J
I ROOM FOR 15 ENTRIES
112
11'
114 J----- HEAD
=
TAll UIJICATES THAT THE BUFFER IS EMPTY
115
11. NUM_KEY
EQU
; SCAN COOE FOR NUMBER LOCK
6'
117 EOU
70
I
SCROLL LOCK
KEY
l1e
ALT_KEY
EQU
56 I ALTERNATE SHIFT KEY SCAN COOE
11.
CTL1EY
EQU
2.
I SCAN CODE FOR CONTROL KEY
120
CAPS_KEY
EOU
5.
I SCAN CODE fOR SHIFT LOCK
121
LEFT_KEY
EOU
42 J SCAN CODE FOR LEFT SHIft
12.
RIGHT_KEY
EQU
54 I SCAN CODE FOR RIGHT SHIFT
123 INS_KEY
EQU
I SCAN CODE FOR INSERT KEY
. . . ,
124
DEl.-KEY
EOU
I SCAN CODE FOR DELETE KEY
125
126 1---------------------------------------­
127
DISKETTE DATA AREAS
12.
J---------------------------------------­
129 SEE~STATUS
DB ; DRIVE RECALIBRATION STATUS
..0
BIT 3-0
=
DRIVE 3-0 NEEDS RECAL BEF()f;!E
131
NEXT SEEK IF BIT IS
=
0
132
INTJLAG EQU
oeOH I
INTERRUPT OCCURRENCE FLAG
133 MOTOR_STATUS 08 I MOTOR STATUS
134
BIT 3-0
=
DRIVE 3-0 IS CURRENTlY RUNNING
135 BIT 7
=
CURRENT OP IS A WRITE. REQUIRES DELAY
136
MOT()f;!_COUNT
DB ; TINE OUT COUNTER FOR DRIVE TURN OFF
137
MOTOR_WAIT
EQU
; TWO SEe Of COUNT FOR MOTOR TURN OFF
'7
13e
13.
DISKETTE_STATUS DB I BYTE OF RETURN CODE INFO FOR STATUS
14'
TIME_OUT EQU ; ATTACHMENT FAILED TO RESPOND
"H
141
BAD_SEEK EQU
4'H
; SEEK OPERATION FAILED
142
BAD_NEe EQU
20H
I NEC CONTROLLER HAS FAILED
14' BAD_CRe EQU 10H ; BAD CRC ON DISKETTE READ
144
DNA_BOUNDARY EQU
ooH
; ATTEMPT TO DHA ACROSS 64K BOUNDARY
145
BAD_DI1A. EQU
,eH
I DMA oVERRLtI ON OPERATION
146 RECORD_NOTJND EQU
'4H
I REQUESTED SECTOR HOT FOUND
147
WRITE_PROTECT EQU 03H I WRITE ATTEMPTED ON WRITE PROT DISK
14.
BAD_ADDR_HARK EQU
O2H
I ADDRESS HARK HOT FOlNJ
System BIOS 5-31