FloatToInt purpose is to convert Float to int! :) anyway, there's
something strange going on here, which i'm abit confused...
.data
a word ?
b real4 234234124.234234
.code
fld b
call FloatToInt
; eax <--- now hold the result
+-------- should be 4!
|
and the result is: 234234128 <---- which is incorrect. how come?
this error occure because 234234124.234234 doesn't fit into real4?
(try and use the value above and see if you get the correct value).
but when i have:
.data
a word ?
b real4 34124.234234
.code
fld b
call FloatToInt
; eax <--- now hold the result
int a ;
float b ;
b = 234234124.234234;
a = (int)b; <--- typecast float(b) to int(a)
You are absolutely correct. There are only 24 bits of percission. Try this:
234234124 / 16 = 14639633 (in hex=DF6210)
14639633 * 16 = 234234128 (look familiar?)thanx for the reply.
about the bright light, i think i see it. (why wouldn't a person
see a ligh when it's BRIGHT??? silly :D )
rake, let me see your bright light (i want to see it nonetheless).
in your saying, are you refering to the SIGN bit???
give me your brigh light so i can make it even brighter!!
I'm very silly after a boring day at work. :) You could have found such an elementary answer as bright as you are? Don't you have documentation where you are at? Intel Architecture Software Developer's Manual Volume 1:Basic Architecture Section 7.4.1, combined with a little binary knowledge?
Okay, the (exponent - 127) is the shift count from the imaginary decimal point - which sits behind the imaginary set bit. :) The sign is nothing special. :)
1:8:23 = sign:exponent(shift+127):fractionrake, my understanding of english isn't perfect(so is my grammar).
when you explain things to me, you have to keep it simple
or else i'll hunt you with more question.
"that's why I used power of two multiply/divide."
You are too funny! :D I knew I should have taken French in high school - never have used the Spanish. :) I'll try to keep it simple, but I am a complex American (my doctor keeps using the word 'pathology' when he tells them about my condition :))
Your English is very good. Try: Section 7.4.1 The more explainations the better, and the pictures aren't too bad either. (I like pictures) I think you can order these in French? (33) (1) 45717171 is their phone number - give 'em a call? :)
Maybe, I should have said, "I'm not so bright, I have the manuals here in my native tonge." I've had enough water for tonight, thank you - come to think of it - I've fell off the end of boat...