Cadillac Quadratic Solver behaving like an Edsel - Problem solved!!

[Gerson W. Barbosa]

(09-16-2014 12:43 AM)Jeff_Kearns Wrote:  

(09-16-2014 12:31 AM)Paul Dale Wrote:  This is like the problem. The code snippet from the original article is:

Code:

B0015 SGN
B0016 X
B0017 +
B0018 STO J
B0019 x<>y
B0020 /

Leaving rubbish in Y isn't good at step B0020.


- Pauli

Found the following archived discussion but the suggested workarounds starting at message #8 do not work either... What gives?

Jeff

The ENTER instruction (LSTx in my suggestion) makes the content of the stack register T to be lost, unlike the original SGN function. Any SGN replacement you choose should preserve the stack.