www.delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1994/11/27/19:36:02

Subject: More Questions, Doubles
From: WU DAVID S <wudavid AT ecf DOT toronto DOT edu>
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Date: Sun, 27 Nov 1994 11:40:28 -0500

Thanks to everyone who responded to my previous posts.

  I have two more questions:
   A: is there a good way to find the value of a variable in FSDB?  I can specify 
its address and get a number in hex.  but this is a pain.  Especially if I am 
dealing with doubles.
	Either that or I can wait for it to appear on the npx window. (doesn't always
work)

   B:  Whats going on inside my math co-processor?  I noticed in FSDB that things go in
and out and sometimes sit inside of it.  I asume that it must have it's own 
registers.
	Can these registers be using in a meaningful way by a shrewd programmer
using ASM?  In my program I am using a lot of doubles, and I want to speed up
my user-friendly but performance-nasty C++ vector library.  Can you move a double
from one place to another using the 64 bit registers in the math co-processsor?

  Wow, since I've gotten a copy of FSB I've learned about asm _and_ my math 
co-processor.  Although it's not friendly compared to TC++'s built in "debugger"
it does have uses.

-- 
                                          |\___
                                          |O.o/
          David Wu                       =(___)=    Don't Drink
                                            U       and Derive

Disclaimer:  This message may not be politically correct.
The message may not be grammatically correct.

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019