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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-06-13 09:46:17 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-06-13 09:47:34 +0200 |
| commit | 3bf9fdbe040136753e6a2c809bd18a44ac5fac03 (patch) | |
| tree | bc2e91c47f1d02b3b3795ec39e1e3ae7248ac4d1 | |
| parent | score: Comment _Thread_queue_Enqueue_critical() (diff) | |
| download | rtems-3bf9fdbe040136753e6a2c809bd18a44ac5fac03.tar.bz2 | |
i386: Fix _CPU_Bitfield_Find_first_bit()
Bug introduced by b04b76c6a0c87ffc9670d356e793108411ce355a.
| -rw-r--r-- | cpukit/score/cpu/i386/rtems/score/cpu.h | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h index 3f0e3369f9..6cfeee6b9b 100644 --- a/cpukit/score/cpu/i386/rtems/score/cpu.h +++ b/cpukit/score/cpu/i386/rtems/score/cpu.h @@ -552,14 +552,13 @@ extern void _CPU_Fatal_halt(uint32_t source, uint32_t error) #define _CPU_Bitfield_Find_first_bit( _value, _output ) \ { \ - register uint16_t __value_in_register = (_value); \ - \ - _output = 0; \ - \ + register uint16_t __value_in_register = ( _value ); \ + uint16_t __output = 0; \ __asm__ volatile ( "bsfw %0,%1 " \ - : "=r" (__value_in_register), "=r" (_output) \ - : "0" (__value_in_register), "1" (_output) \ + : "=r" ( __value_in_register ), "=r" ( __output ) \ + : "0" ( __value_in_register ), "1" ( __output ) \ ); \ + ( _output ) = __output; \ } /* end of Bitfield handler macros */ |