LaC
OBJ
LINE
SOURCE
0001
149
EOU
01H ;
BAD
COI'fWI)
PASSED
TO
DISKETTE
I/O
150
0042
(7
151
DB
7
aUP!?
I I
STATUS
BYTES
FROt1
NEt
15.
153
;
-------------
- -
-------------------------
154
VIDEO DISPLAY
DATA
AREA
155
;
------
- -
----------
...
---------------------
0049
??
156
CRT_MODE
DB
j
CURRENT
CRT
HOOE
004A
1111
157
CRT_eOLS
ow
I NUMBER
OF
COLUMNS
ON
SCREEH
004C 1111
158
CRT_LEN
OW
,
LENGTH
OF
REGEN
IN BYTES
004E
1111
159
CRT_START
OW
;
STARTING
ADDRESS
IN
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0050
18
160
:URSOR_POSN
ow
8
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I
CURSOR
FOR
EACH
OF
UP
TO
8 PAGES
0060
????
161
CURSOR_HODE
OW
j CURRENT
CURSOR
MOOE
SETTIHG
0062
??
16'
ACTIVE_PAGE
D.
I
CURRENT
PAGE
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0063
1111
16'
ADDR_6845
OW
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BASE
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DISPLAY
CARD
0065
11
164
CRT_MODE_SET
DB
I
CURRENT
SETTING
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THE
3X8 REGISTER
0066
1?
16S
CRT_PALETTE
DB
;
CURRENT
PALETTE SETTING
COLOR
CARD
166
167
J
------------
----------------------------
168
CASSETTE DATA
AREA
169
;----------------------------------------
0067
1111
170
EDGE_tNT
ow
; TIME
COUNT
AT DATA
EDGE
0069
1111
171
OW
;
CRC
REGISTER
006B 11
17.
DB
; LAST
INPUT
YAWE
In
174
;
----------------------------------------
175
TIMER DATA
AREA
176
1----------------------------------------
OObC
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177
TIMER_LOW
ow
i
LOW
WORD
OF
TIMER
COUNT
006E 11??
178
TIMER_HIGH
OW
;
HIGH
WORD
OF
TIMER
tOUNT
0070
11
179
TIMER_On
DB
1 TIMER
HAS
ROLLED
OVER
SINCE LAST
READ
180
;COUNTS_SEC
EQU
I.
181
;COUNTS_MIN
EOU
1092
18'
,COUNTS_HOUR
EOU
65543
183
!COUNTS_DAY
EOU
1573040
= 1800BOH
184
185
;
-------
---------------------------------
186
SYSTEM
DATA
AREA
187
;-----
--
---------------------------------
0071
11
188
BIOS_BREAK
DB
I
BIT
7
:;:
1
IF
BREAK
KEY
WAS
DEPRESSED
0072 1111
189
RESET_FLAG
OW
;
WORD:;:
1234H
IF
KB
RESET
UNOERWAY
190
;
-----------------
______________________
_
191
FIXED
DISK
DATA
AREA
19.
;----------------------------------------
0074
????
193
OW
0076
1??1
194
OW
195
J
----------------------------------------
196
I PRINTER
AHO
RS212 TIMEOUT
CTPS
:
197
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0078
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19.
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DB
4
DUP[?)
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OUT
COUNTER
D07C
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199
4 DUPe? I
; RS21Z
TIHE
OUT
COlJIfTER
200
;
-----------------------------------
--
---
201
EXTRA
KEYBOARD
DATA
AREA
0080
1111
202
,OJ
;
----
------------------------------------
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ow
0082
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204
BUFFER_EHO
DW
Z05
DATA
ENDS
206
;
--
- - -
--
---------------------------------
207
EXTRA DATA
AREA
208
;
--
--
-
--
---------------------------------
20'
XXDATA
SEGMENT
AT
SOH
0000
??
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STATUS_BYTE
DB
'11
XXOATA
ENDS
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211
1-------------------
____________________
_
214
VIDEO DISPLAY BUFFER
215
J
---------------------------------
-
--
----
216
VIDEO_RAM
SEGMENT
AT
OBSOOH
5-32
System
BIOS
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