From 4e7a4a4e84998ec1e57d6e2b466db1bee462002e Mon Sep 17 00:00:00 2001
From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Mon, 9 Apr 2007 14:15:41 +0000
Subject: Mark watchpoint features as unimplemented.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2643 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-mips/op.c        | 11 ++++++++---
 target-mips/translate.c |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

(limited to 'target-mips')

diff --git a/target-mips/op.c b/target-mips/op.c
index aec6a02..d7f0306 100644
--- a/target-mips/op.c
+++ b/target-mips/op.c
@@ -1444,13 +1444,16 @@ void op_mtc0_config2 (void)
 
 void op_mtc0_watchlo0 (void)
 {
-    env->CP0_WatchLo = (int32_t)T0;
+    /* Watch exceptions for instructions, data loads, data stores
+       not implemented. */
+    env->CP0_WatchLo = (int32_t)(T0 & ~0x7);
     RETURN();
 }
 
 void op_mtc0_watchhi0 (void)
 {
-    env->CP0_WatchHi = T0 & 0x40FF0FF8;
+    env->CP0_WatchHi = (T0 & 0x40FF0FF8);
+    env->CP0_WatchHi &= ~(env->CP0_WatchHi & T0 & 0x7);
     RETURN();
 }
 
@@ -1620,7 +1623,9 @@ void op_dmtc0_epc (void)
 
 void op_dmtc0_watchlo0 (void)
 {
-    env->CP0_WatchLo = T0;
+    /* Watch exceptions for instructions, data loads, data stores
+       not implemented. */
+    env->CP0_WatchLo = T0 & ~0x7;
     RETURN();
 }
 
diff --git a/target-mips/translate.c b/target-mips/translate.c
index e5eff06..a1af8ab 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -5406,6 +5406,7 @@ void cpu_reset (CPUMIPSState *env)
     env->CP0_EBase = 0x80000000;
     env->CP0_Status = (1 << CP0St_BEV) | (1 << CP0St_ERL);
     env->CP0_WatchLo = 0;
+    env->CP0_WatchHi = 0;
     /* Count register increments in debug mode, EJTAG version 1 */
     env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
 #endif
-- 
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