Data Transfer Operations
To A
An instruction containing the operation “
" directs the computer to transfer the contents of
the addressed register to A while retaining them in the original register. The contents of M and
R are not affected. The previous contents of A are destroyed. The setting of the Decimal Wheel
has no effect on this operation.
________________________________________________________________________________
INSTRUCTION RESULT______________________________________
M
A
R
R
A
A
Inoperative
b
b
A
B
B
A
c
c
A
C
C
A
d
d
A
D
D
A
e
e
A
E
E
A
f
f
A
F
F
A
______________________________________________________________________________
EXAMPLE: Decimal Wheel set at 2.
___________________________
M A R B
BEFORE 24 36.05 48.123 12.00
R
AFTER 24 48.123 48.123 12.00
________________________________________________________________________________
An example of using this instruction manually to transfer a value entered on the keyboara to
the A register would be to enter a figure on the keyboard (e.g. 1.141421) and then depress
the
key. After the
key is depressed, the data will be transferred to A and the computer
will print the number and the instruction, e.g. 1.141421
. However, if the number had been
in a register (e.g. B) and that register were directed to transfer to A, the computer would print
only the instruction, e.g. B
.
- 18 -
To Next Page
Loading...
