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Re: [avr-gcc-list] Add builtins in avr target.
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From: |
Oleksandr Redchuk |
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Subject: |
Re: [avr-gcc-list] Add builtins in avr target. |
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Date: |
Thu, 17 Apr 2008 15:16:27 +0300 |
2008/4/17, Oleksandr Redchuk <address@hidden>:
> 7 to 756
>
>
> >> ldi rX, (delay/3)
> >> 1:dec rX
> >> brne 1b
> >> is generated. 'ldi' instruction can be removed by optimizer.
>
> and removed ldi instruction execution time (1 cycle) for 7+ cycles
> will produce less relative error than for 3..6 cycles delay
May be
ldi rX, ((delay+1)/3)
will be better for small delays
--
wbr,
ReAl
- RE: [avr-gcc-list] Add builtins in avr target., (continued)
- Re: [avr-gcc-list] Add builtins in avr target., Anatoly Sokolov, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target., Anatoly Sokolov, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target., Wouter van Gulik, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target., Oleksandr Redchuk, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target.,
Oleksandr Redchuk <=
- Re: [avr-gcc-list] Add builtins in avr target., Anatoly Sokolov, 2008/04/17
- RE: [avr-gcc-list] Add builtins in avr target., Weddington, Eric, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target., Dmitry K., 2008/04/17
- RE: [avr-gcc-list] Add builtins in avr target., Weddington, Eric, 2008/04/18
- Re: [avr-gcc-list] Add builtins in avr target., Dmitry K., 2008/04/18
- Re: [avr-gcc-list] Add builtins in avr target., hutchinsonandy, 2008/04/17
- Re: [avr-gcc-list] Add builtins in avr target., Anatoly Sokolov, 2008/04/18
- Re: [avr-gcc-list] Add builtins in avr target., Rolf Ebert, 2008/04/21
- RE: [avr-gcc-list] Add builtins in avr target., Weddington, Eric, 2008/04/21
- RE: [avr-gcc-list] Add builtins in avr target., Weddington, Eric, 2008/04/18