diff options
Diffstat (limited to 'cpukit/score/cpu/lm32')
| -rw-r--r-- | cpukit/score/cpu/lm32/ChangeLog | 5 | ||||
| -rw-r--r-- | cpukit/score/cpu/lm32/cpu.c | 9 |
2 files changed, 11 insertions, 3 deletions
diff --git a/cpukit/score/cpu/lm32/ChangeLog b/cpukit/score/cpu/lm32/ChangeLog index ac385510e3..ae62c598f5 100644 --- a/cpukit/score/cpu/lm32/ChangeLog +++ b/cpukit/score/cpu/lm32/ChangeLog @@ -1,3 +1,8 @@ +2010-03-02 Michael Walle <michael@walle.cc> + + * cpu.c: Provide body for CPU specific Idle thread. This halts on qemu + but is just a nop on a real cpu. + 2009-05-05 Michael Walle <michael@walle.cc> * cpu_asm.S, irq.c, rtems/score/cpu.h: Add lm32 gdb stub support. diff --git a/cpukit/score/cpu/lm32/cpu.c b/cpukit/score/cpu/lm32/cpu.c index b796b6a1e6..245019e4b7 100644 --- a/cpukit/score/cpu/lm32/cpu.c +++ b/cpukit/score/cpu/lm32/cpu.c @@ -161,7 +161,10 @@ void _CPU_Install_interrupt_stack( void ) void *_CPU_Thread_Idle_body( uintptr_t ignored ) { - - for( ; ; ) - /* insert your "halt" instruction here */ ; + for( ; ; ) { + /* The LM32 softcore itself hasn't any HLT instruction. But the + * LM32 qemu target interprets this nop instruction as HLT. + */ + asm volatile("and r0, r0, r0"); + } } |