DIYbanter - View Single Post - constructive critic on my plcc adapter PCB

JosephKK

John Larkin posted to
alt.binaries.schematics.electronic:

On Sat, 13 Oct 2007 20:10:55 GMT, Rich Grise
wrote:

On Thu, 11 Oct 2007 12:06:22 -0700, John Larkin wrote:

On Thu, 11 Oct 2007 18:21:02 GMT, Rich Grise
wrote:

On Thu, 11 Oct 2007 10:23:27 -0400, robb wrote:
"John Larkin" wrote
On Mon, 8 Oct 2007 10:09:49 -0700, "Joel Kolstad"
"Joel Kolstad" wrote in
message
...
XEQ P (the parallel resistance program :-) )

^^^ BTW, while everyone knows that the parallel impedance
formula is 1/Result
= 1/Z1 + 1/Z2, for those of us who can get geeky with respect
to calculators
and numerical methods, using Result = (Z1*Z2)/(Z1+Z2) is more
accurate when Z1
is significantly larger or smaller than Z2... hence some of
the motivation to
write a program to do it each time.

When I have anything worth programming, I do it in PowerBasic.
It's
portable and archivable, and I can use double floats if needed.
PB
even has 80-bit floats!

if you need 80 bit floats ....
I am surprised you guys are not using some functional
programming language like scheme (lisp/Lambda calc variants)
where your reals are number abstractions with no language or
data type imposed limit on the number size or precision and of
course no numerical methods issues/errors from typical
float/double data type limitations just wondering,

Loosely-typed or untyped data is a mare's nest of bugs just
waiting to happen.

There are no types in assembly. We don't need no stinkin' types!

Yeah, but assembly doesn't have built-in 80-bit floats! ;-)

Pentium assembly does.

John

So did 68020 through 68060. As well as DEC Alpha, SPARC, HP PA-RISC
and PPC. Some MIPS did as well. I find it odd that ColdFire parts
do not.