Comparisons with zero on HP-65

[Dieter]

(08-29-2017 10:14 PM)Matt Agajanian Wrote:  Nope! But, I just thought I'd ask and see if our group had clever shortcuts to allow X to stay in the X register instead of being pushed into Y.

X doesn't have to get pushed to Y. You can always add another step and add an X<>Y.
Or you simply place the zero before the value which is compared to 0 is calculated:

Instead of...

Code:

RCL 1
RCL 2
x
RCL 3
RCL 4
x
+
0
X<>Y    ; optional
X=Y?
...

...simply do it this way:

Code:

0
RCL 1
RCL 2
x
RCL 3
RCL 4
x
+
X=Y?
...

Dieter