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* mem.c (rx_mem_ptr): When invalidating the decode cache, account

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for the fact that the instruction decoder never uses swapped
	addresses.
This commit is contained in:
Kevin Buettner 2010-09-30 00:03:23 +00:00
parent 6f6526358f
commit e4dcb66415
2 changed files with 15 additions and 3 deletions
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6
sim/rx/ChangeLog
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@ -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> 2010-09-29 Nick Clifton <nickc@redhat.com>
* rx.c (decode_opcode: RXO_int): Only break out of the emulation * rx.c (decode_opcode: RXO_int): Only break out of the emulation

12
sim/rx/mem.c
View File

@ -104,13 +104,19 @@ rx_mem_ptr (unsigned long address, enum mem_ptr_action action)
if (action == MPA_WRITING) if (action == MPA_WRITING)
{ {
int pto_dc;
if (ptr[pt1][pt2][pto] == MC_PUSHED_PC) if (ptr[pt1][pt2][pto] == MC_PUSHED_PC)
execution_error (SIM_ERR_CORRUPT_STACK, address); execution_error (SIM_ERR_CORRUPT_STACK, address);
ptr[pt1][pt2][pto] = MC_DATA; 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]); free (ptdc[pt1][pt2][pto_dc]);
ptdc[pt1][pt2][pto] = NULL; ptdc[pt1][pt2][pto_dc] = NULL;
} }
} }