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Newsgroups: comp.os.msdos.djgpp
Subject: Is this optimizable ?
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Date: Sun, 21 Dec 2003 10:52:31 +0000
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi All,
I am currently using this code to retrieve data from a data capture
board

unsigned char data[1024], *data_ptr;
data_ptr = data;

for(x = 0; x < 1024; x++)
    *data_ptr++ = inportb(0x246);

I am giving the compiler the -O3 option

Only trouible is, my for() loop is not fast enough. 
I am thinking there is not much there to optimize and that even if I
wrote the function in assembler it wouldn't be much quicker. 
But I figured I'd ask you guys first before I declare the program
unfeasable.
Any ideas ?


Sourcerer
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