gwj / at91sam9263 · Commits

Commit 4e7a4a4e84998ec1e57d6e2b466db1bee462002e

Authored by ths
1 parent 62c5609a

Mark watchpoint features as unimplemented. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2643 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 2 changed files with 9 additions and 3 deletions
target-mips/op.c
  View file @4e7a4a4
... ... @@ -1444,13 +1444,16 @@ void op_mtc0_config2 (void)
1444 1444  
1445 1445 void op_mtc0_watchlo0 (void)
1446 1446 {
1447   - env->CP0_WatchLo = (int32_t)T0;
  1447 + /* Watch exceptions for instructions, data loads, data stores
  1448 + not implemented. */
  1449 + env->CP0_WatchLo = (int32_t)(T0 & ~0x7);
1448 1450 RETURN();
1449 1451 }
1450 1452  
1451 1453 void op_mtc0_watchhi0 (void)
1452 1454 {
1453   - env->CP0_WatchHi = T0 & 0x40FF0FF8;
  1455 + env->CP0_WatchHi = (T0 & 0x40FF0FF8);
  1456 + env->CP0_WatchHi &= ~(env->CP0_WatchHi & T0 & 0x7);
1454 1457 RETURN();
1455 1458 }
1456 1459  
... ... @@ -1620,7 +1623,9 @@ void op_dmtc0_epc (void)
1620 1623  
1621 1624 void op_dmtc0_watchlo0 (void)
1622 1625 {
1623   - env->CP0_WatchLo = T0;
  1626 + /* Watch exceptions for instructions, data loads, data stores
  1627 + not implemented. */
  1628 + env->CP0_WatchLo = T0 & ~0x7;
1624 1629 RETURN();
1625 1630 }
1626 1631  
... ...
target-mips/translate.c
  View file @4e7a4a4
... ... @@ -5406,6 +5406,7 @@ void cpu_reset (CPUMIPSState *env)
5406 5406 env->CP0_EBase = 0x80000000;
5407 5407 env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
5408 5408 env->CP0_WatchLo = 0;
  5409 + env->CP0_WatchHi = 0;
5409 5410 /* Count register increments in debug mode, EJTAG version 1 */
5410 5411 env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
5411 5412 #endif
... ...