diff options
Diffstat (limited to 'gdb/regcache.c')
| -rw-r--r-- | gdb/regcache.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gdb/regcache.c b/gdb/regcache.c index 8c1a0aa..11ed8c4 100644 --- a/gdb/regcache.c +++ b/gdb/regcache.c @@ -45,7 +45,13 @@ char *registers; /* REGISTER_VALID is 0 if the register needs to be fetched, 1 if it has been fetched, and -1 if the register value was not available. - "Not available" means don't try to fetch it again. */ + + "Not available" indicates that the target is not not able to supply + the register at this state. The register may become available at a + later time (after the next resume). This often occures when GDB is + manipulating a target that contains only a snapshot of the entire + system being debugged - some of the registers in such a system may + not have been saved. */ signed char *register_valid; @@ -654,8 +660,6 @@ generic_target_write_pc (CORE_ADDR pc, ptid_t ptid) write_register_pid (PC_REGNUM, pc, ptid); if (NPC_REGNUM >= 0) write_register_pid (NPC_REGNUM, pc + 4, ptid); - if (NNPC_REGNUM >= 0) - write_register_pid (NNPC_REGNUM, pc + 8, ptid); #else internal_error (__FILE__, __LINE__, "generic_target_write_pc"); |