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Index > Compiler Internals > [bug]pre-initialised floating point data

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Chewy509



Joined: 19 Jun 2003
Posts: 297
Location: Bris-vegas, Australia
Chewy509
Hi Tomasz,

Noticed this the other day when working on my compiler (which emits code to assembled by fasm).

The following causes fasm to stop with an error (which is correct):
Code:
my_fp0 dt 1.0e10.0    


however the following causes fasm to get stuck in a loop and exhaust all free mem:
Code:
my_fp0 dt 1.0e-10.0    


fasm will eventually stop gracefully with an out of memory error on the last one. However I expected fasm to stop with the same error as the first?

Tested with fasm 1.65.21 on both Win32 and Linux.

PS. I do consider both to be invalid syntax... just thought fasm's response the 2nd one a bit unusual.
Post 27 Apr 2006, 03:26
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7718
Location: Kraków, Poland
Tomasz Grysztar
Fixed in 1.65.22.
Post 27 Apr 2006, 09:16
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Madis731



Joined: 25 Sep 2003
Posts: 2141
Location: Estonia
Madis731
I think it has been discussed already, but its hard to find a dot (".") by searching so I'll ask again.
What was the reason for not supporting number formats like:
Code:
floatzero dt .0
floatminushalf dt -.5
    

Does it make the parsing harder or are there any other points that I missed?
Post 27 Apr 2006, 10:20
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17266
Location: In your JS exploiting you and your system
revolution
All numbers start with a numbers. All local labels start with a single dot. This is a good thing. Some versions ago (1.4x I think) we could not even have labels .e or .f, much more clear now in the later versions.
Post 27 Apr 2006, 11:45
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
yep, i remember myslef reporting that bug several times Wink
Post 27 Apr 2006, 13:32
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Chewy509



Joined: 19 Jun 2003
Posts: 297
Location: Bris-vegas, Australia
Chewy509
Tomasz Grysztar wrote:
Fixed in 1.65.22.

Thanks Smile
Post 27 Apr 2006, 22:21
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