IBM 5170 Technical Reference page 173

c
C POST DATA AREA
0067
01
PNTR TO OPTIONAL I/O ROM INIT ROUTINE
g
i
O=ROM=7N7T-----~~------~-~~;(;i--------
c
c
c
0069
01
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DW 1 DUP(?) PO I NTER TO 10 ROM SEGMENT
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c
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0068
01
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INTRJLAG
DB
1 DUP(?)
FLAG TO INDICATE AN INTERRUPT HAPPEND
??
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c
c
c
c
Tlr~ER DATA AREA
c
006C 01
c
DW 1 DUP(?) LOW WORD OF T I MER COUNT
????
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c
006E 01
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DW 1 DUP(?) HIGH WORD OF T I MER COUNT
????
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0070
01
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DB 1 DUP(?) TIMER HAS ROLLED OVER SINCE LAST READ
??
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c
c
c
SYSTEM OAT A AREA
c
0071 01
c
DB
1 DUP(?)
BIT 7=1 IF BREAK KEY HAS BEEN HIT
??
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c
c
0072
01
????
c
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DW
1 DUP(?)
WORD""1234H I F KEYBOARD RESET UNDERWAY
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PAGE
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0074
01
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HARD FILE DATA AREAS
b 7
~~= ~T ~T~~~
--­-
~~
---­--
~
-
~~
;(;
i ­----­--­
??
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c
0075 01
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DB 1 DUP(?)
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c
0076
01
c
DB 1 DUP(?)
??
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c
0077
01
c
DB 1 DUP(?)
??
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c
PRINTER AND RS232 TIME-OUT VARIABLES
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0078 04
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DB 4 DUP(?)
??
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007C
c
DB 4 DUP(?)
??
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c
;
---------------------------------------­
ADDITIONAL KEYBOARD DATA AREA
c
0080
01
c
DW 1 DUP(?)
????
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c
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0082 01
c
DW
1 DUP(?)
????
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c
c
ADDITIONAL FLOPPY DATA
c
008B
c
ORe BBH
008B 01 [
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LASTRATE DB 1 DUP(?) LAST DATA RATE SELECTED
??
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PAGE
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008C
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ADDITIONAL HARD FILE DATA
;---------------------------------------
ORe BeH
008C 01
c
HF_STATUS DB 1 DUP(?) STATUS REG I STER
??
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0080
01 [
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HF _ERROR DB 1 DUP(?) ERROR REG I STER
??
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008E 01 [
c
1 DUP(?) HARD FILE I NTERRU PT FLAG
??
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008F
01
c
HF_CNTRL DB 1 DUP(?) COMBO HARD FILE/FLOPPY CARD BIT 0=1
??
c
c
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0090
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ADDITIONAL DISKETTE AREA
;---------------------------------------­
90H
0090
c
LABEL BYTE
0090
01
c
OB
1 OUP(?) DRIVE 0 MEDIA STATE
??
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c
c
0091 01
c
DB
1 DUP(?)
DRIVE 1 MEDIA STATE
??
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c
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0092
01
c
DB
1 DUP(?)
DRIVE 0 OPERATION START STATE
Test 1 5-31