Displaying 4 results from an estimated 4 matches for "bitconst".
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bidconst
2009 May 21
2
[LLVMdev] Arm port
...in
the same cycle for the best performance (Cortex-A9 is out-of-order so
dual issue is not an issue (!) for performance).
- Cortex-A8/A9 have several useful new instructions : for instance, bit
operations like bitfield insertion/extraction or having a pair of
instruction MOVW,MOVT to read a 32-bitconstant/address into only 2
instruction instead of 3 or 4, etc.
- VFPv3 is supported for backward compatibility but they are very slow
and not pipelined.
- NEON (SIMD coprocessor) can do a lot of impressive operations on
32-bit float or integer of any size. Most VFP operations can be done
through NE...
2009 May 21
0
[LLVMdev] Arm port
...for the best performance (Cortex-A9 is out-of-order so
> dual issue is not an issue (!) for performance).
> - Cortex-A8/A9 have several useful new instructions : for instance, bit
> operations like bitfield insertion/extraction or having a pair of
> instruction MOVW,MOVT to read a 32-bitconstant/address into only 2
> instruction instead of 3 or 4, etc.
> - VFPv3 is supported for backward compatibility but they are very slow
> and not pipelined.
> - NEON (SIMD coprocessor) can do a lot of impressive operations on
> 32-bit float or integer of any size. Most VFP operation...
2009 May 21
0
[LLVMdev] Arm port
...tex-A9 is out-of-order so
>>> dual issue is not an issue (!) for performance).
>>> - Cortex-A8/A9 have several useful new instructions : for instance, bit
>>> operations like bitfield insertion/extraction or having a pair of
>>> instruction MOVW,MOVT to read a 32-bitconstant/address into only 2
>>> instruction instead of 3 or 4, etc.
>>> - VFPv3 is supported for backward compatibility but they are very slow
>>> and not pipelined.
>>> - NEON (SIMD coprocessor) can do a lot of impressive operations on
>>> 32-bit float or in...
2009 May 21
6
[LLVMdev] Arm port
...performance (Cortex-A9 is out-of-order so
>> dual issue is not an issue (!) for performance).
>> - Cortex-A8/A9 have several useful new instructions : for instance, bit
>> operations like bitfield insertion/extraction or having a pair of
>> instruction MOVW,MOVT to read a 32-bitconstant/address into only 2
>> instruction instead of 3 or 4, etc.
>> - VFPv3 is supported for backward compatibility but they are very slow
>> and not pipelined.
>> - NEON (SIMD coprocessor) can do a lot of impressive operations on
>> 32-bit float or integer of any size. M...