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Diffstat (limited to 'cpukit/score/cpu/sparc64/README')
| -rw-r--r-- | cpukit/score/cpu/sparc64/README | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cpukit/score/cpu/sparc64/README b/cpukit/score/cpu/sparc64/README new file mode 100644 index 0000000000..9da0c5e0ef --- /dev/null +++ b/cpukit/score/cpu/sparc64/README @@ -0,0 +1,15 @@ +# +# $Id$ +# + +A lot of explanation needed, will do when known. + +The score/cpu/sparc64 contains only code that can execute without accessing +privileged registers or using privileged instructions. This was done because +the privileged registers differ between the sun4u and sun4v models. + +The model specific and privileged code that would normally be found in +score/cpu/sparc64 resides in libcpu/sparc64/@RTEMS_CPU_MODEL@/score or in +libcpu/sparc64/shared/score directory. This is primarily the interrupt +handling code. + |