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Memory Access via Address in ACCU 1
Example
"CX DX 17"
Effect of the
A d d r e s s e s
4 1 5 1 B H
4 1 5 1 C H
4 1 5 1 D H
4 1 5 1 E H
4 1 5 1 F H
D B A
4 1 5 2 0 H
4 1 5 2 1 H
4 1 5 2 2 H
4 1 5 2 3 H
4 1 5 2 4 H
4 1 5 2 5 H
4 1 5 2 6 H
4 1 5 2 7 H
Fig. 9-6
Using the DBL register
When DX 17 is called, the number of existing data words is entered in the
DBL register. In this example the DBL is
Note:
In the ISTACK, the number entered in the DBL register appears under the
heading "DBL-REG".
9 - 14
operation on the DBL:
D X 1 7
5 w o r d s
B l o c k h e a d e r
a a a a
b b b b
c c c c
d d d d
e e e e
ffff
g g g g
h h h h
8 (DW 0 to DW 7)
D W 0
D W 1
D W 2
D W 3
D B L
D W 4
D W 5
D W 6
D W 7
CPU 948 Programming Guide
C79000-G8576-C848-04
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