diff options
| author | Kevin Buettner <kevinb@redhat.com> | 2010-09-30 00:03:23 +0000 |
|---|---|---|
| committer | Kevin Buettner <kevinb@redhat.com> | 2010-09-30 00:03:23 +0000 |
| commit | e4dcb664155ce5754aa54b0ebc7095d780cbe2fc (patch) | |
| tree | 99f4761c5e00605c1e09dd11d0c8b4db6ff9dbe8 /sim/rx | |
| parent | 6f6526358fe53ff6b4da0a689bd8f6b721c3df8a (diff) | |
| download | gdb-e4dcb664155ce5754aa54b0ebc7095d780cbe2fc.zip gdb-e4dcb664155ce5754aa54b0ebc7095d780cbe2fc.tar.gz gdb-e4dcb664155ce5754aa54b0ebc7095d780cbe2fc.tar.bz2 | |
* mem.c (rx_mem_ptr): When invalidating the decode cache, account
for the fact that the instruction decoder never uses swapped
addresses.
Diffstat (limited to 'sim/rx')
| -rw-r--r-- | sim/rx/ChangeLog | 6 | ||||
| -rw-r--r-- | sim/rx/mem.c | 12 |
2 files changed, 15 insertions, 3 deletions
diff --git a/sim/rx/ChangeLog b/sim/rx/ChangeLog index 4da5965..8728ebf 100644 --- a/sim/rx/ChangeLog +++ b/sim/rx/ChangeLog @@ -1,3 +1,9 @@ +2010-09-29 Kevin Buettner <kevinb@redhat.com> + + * mem.c (rx_mem_ptr): When invalidating the decode cache, account + for the fact that the instruction decoder never uses swapped + addresses. + 2010-09-29 Nick Clifton <nickc@redhat.com> * rx.c (decode_opcode: RXO_int): Only break out of the emulation diff --git a/sim/rx/mem.c b/sim/rx/mem.c index 7405518..3a976cb 100644 --- a/sim/rx/mem.c +++ b/sim/rx/mem.c @@ -104,13 +104,19 @@ rx_mem_ptr (unsigned long address, enum mem_ptr_action action) if (action == MPA_WRITING) { + int pto_dc; if (ptr[pt1][pt2][pto] == MC_PUSHED_PC) execution_error (SIM_ERR_CORRUPT_STACK, address); ptr[pt1][pt2][pto] = MC_DATA; - if (ptdc[pt1][pt2][pto]) + + /* The instruction decoder doesn't store it's decoded instructions + at word swapped addresses. Therefore, when clearing the decode + cache, we have to account for that here. */ + pto_dc = pto ^ (rx_big_endian ? 3 : 0); + if (ptdc[pt1][pt2][pto_dc]) { - free (ptdc[pt1][pt2][pto]); - ptdc[pt1][pt2][pto] = NULL; + free (ptdc[pt1][pt2][pto_dc]); + ptdc[pt1][pt2][pto_dc] = NULL; } } |