kka059@Mipl3.JPL.Nasa.GOV (10/09/87)
Many thanks to those of you who responded to my question regarding TPU
range comparisons. It seems that TPU V1 does not actually support range
comparisons (section 3.7.2 para 2 notwithstanding). Rumor has it that
this will be corrected with the advent of TPU V2.
To accomplish the task of comparing two ranges for (in)equality, the
most cogent solution appears to be to compare the markers which designate
the beginning and end of the two ranges as in:
IF (BEGINNING_OF (range1) = BEGINNING_OF (range2)) and
(END_OF (range1) = END_OF (range2)) THEN
message ("Ranges identical");
ELSE
message ("Ranges different");
ENDIF;
Not to let a happy ending rest without another question, does anybody
know if there is any way (other than a user written procedure) to determine
if TPU is currently running in a subprocess?
P.S. I can testify from personal experience that US Snail and Ma Bell
addresses are still used by some people (even fine, upstanding people)
with computers! (You would know this exhortation is addressed to you).
+----------------------------+------------------------------------------+
| Kurt Andersen | Jet Propulsion Laboratory |
| MIPL Applications | Mail Stop 168-427 |
| Programmer | 4800 Oak Grove Drive |
| Office: 169-425 | Pasadena, Calif. 91109 |
+----------------------------+--------------------+---------------------+
| NETWORKS: / "The time has come," |
| SPAN: Mipl3::KKA059 (5.153) / the walrus said, "To |
| ARPA Internet: KKA059@Mipl3.Jpl.Nasa.Gov / speak of many things: |
| [128.149.1.28] / of patterns and ranges |
| / and variables, of TPU |
| Ma Bell (R.I.P.): (818) 354-1672 / and things..." |
| / (Apologies to the author) |
+-----------------------------------------+-----------------------------+