TM 5-6675-323-14
Function
Control or Indicator
Key
Number
Manipulation
Interchanges contents of
Exchange
Register
X and Y-registers.
Rolls down contents of
Roll Down
a u t o m a t i c memory stack
for viewing in X-register
without loss of data.
When pressed, contents of
X-register is shifted to
T-register, T-register
shifts to Z-register, Z-
register shifts to Y-
register, and Y-register
advances to X-register
for viewing.
Clears contents of dis-
CLEAR X
played X-register.
13-8
