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Re: [avr-gcc-list] Bit Operations
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From: |
Ormund Williams |
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Subject: |
Re: [avr-gcc-list] Bit Operations |
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Date: |
Sun, 11 Feb 2001 21:04:25 -0500 |
Jim Pearce wrote:
>
> Is there any way using GCC to force bit based I/O instead of doing ugly ANDs
> and ORs of entire 8-bit ports?
>
> Thanks,
>
> Jim
>
Hi Jim
The avr-libc has bit-IO macros that compile as single asm instructions
for setting and clearing bits on a port. Marek just posted the latest,
avr-libc-20010211.
--
Ormund