TM5-6675-326-14
8-3.4.2 Automatic Memory Stack - Continued
stack can be viewed by press ing~key four times.
The contents of
T-register are not lost because the stack forms a continuous loop, i.e.,
t h e c o n t e n t s o f T - r e g i s t e r a r e s h i f t e d t o Z - r e g i s t e r ; Z - r e g i s t e r to
Y - r e g i s t e r ; Y - r e g i s t e r t o X - r e g i s t e r ; a n d X - r e g i s t e r t o T - r e g i s t e r .
With
intermediate answers stored in the stack , operations can be performed with
these numbers by pressing the key of the desired operation.
Example:
To calculate (3 x 5) + 2, press:
( 1 ) q ( 3 e n t e r s X - r e g i s t e r )
( 2 ) -1 ( 3 i s c o p i e d t o Y - r e g i s t e r )
(3)
q
(
5 is entered in X-register; 3 stays in Y-register)
( 4 ) q ( 5 i s m u l t i p l i e d b y 3 ; r e s u l t , 1 5 , i s p l a c e d in
X-register; Y-register becomes 0)
(5)
q
(
15 moves to Y-register; 2 enters X-register)
( 6 ) q ( m i s a d d e d t o 1 5 ; r e s u l t , 1 7 , i s p l a c e d i n
X-register; Y-register becomes 0).
8-4 DESCRIPTION
Section II .
OPERATING INSTRUCTIONS
AND USE OF OPERATOR’S CONTROLS AND INDICATORS.
8-4
