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8 it Position
0 1 2 3 4 5 6
7 0
2 3 4
5 6 7 0
2 3 4 5 6 7 0 1
6
7 0
23 4 5
6 7
Function
Zone
I
Digit
Zone
Digit
Zone
Digit
Digit
Sign*
Digit
Low-Order Byte
*
Sign Configurations:
Binary
Hexadecimal
Function
1010
A
Alternate Plus
1011
B
ASCI 1-8 Minus
1100
c
Alternate Plus
1101
D
Standard Minus
1110
E
Alternate Plus
1111
F
Standard Plus
Figure 1-26. Decimal Data Storage and Sign Control
A. Fixed Length Areas
y-
Even 128 Byte Boundary
- - - - O d d 128-Byte Boundary
000
095
127 11s
·.·
MFCU Primary Read
96 Bytes
.:·
MFCU Punch
96 Bytes
~
MFCU Print Data and Data Buffer 256 Bytes
80
Data 128 Bytes
}Buffer 128 Bytes
Line Printer Sync
l~c
Line Printer Data*
120 Bytes
132 Bytes
.::.
.:
*
Line printer data area should be in the same 256 byte area as the sync area.
Indicates parts of 1/0 areas not used by the 1/0 devices.
IMAGE
DATA
Line Printer must be XXOO and YY7C
Figure 1-27. 1/0 Storage Requirements
1-28 (1/71)
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