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Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/cpu/powerpc/rtems/score/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h index e793667609..ce74a9d1ff 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h @@ -406,6 +406,10 @@ static inline uint32_t CPU_swap_u32( * we run in supervisory mode so that should work on * all CPUs. In user mode we'd have a problem... * 2007/11/30, T.S. + * + * OTOH, PSIM currently lacks support for reading + * SPRs 268/269. You need GDB patch sim/2376 to avoid + * a crash... */ #define CPU_Get_timebase_low( _value ) \ asm volatile( "mftb %0" : "=r" (_value) ) |