TM 5-6675-322-14
Key
C o n t r o l o r I n d i c a t or
Function
Number Manipulation
Exchange Register
Roll Down
Interchanges contents of
X and Y-registers.
Rolls down contents of
automatic memory stack
f o r v i e w i n g i n X - r e g i s t e r
without loss of data.
When pressed, contents of
X - r e g i s t e r i s s h i f t e d t o
T - r e g i s t e r , T - r e g i s t e r
s h i f t s t o Z - r e g i s t e r , Z-
r e g i s t e r s h i f t s t o Y-
r e g i s t e r , a n d Y - r e g i s t e r
advances to X-register
f o r v i e w i n g.
CLEAR X
Clears contents of dis -
p l a y e d X - r e g i s t e r.
3-8
