commit 80c27194a7be757ef5a9cec978d1d8faaa4cee81
author ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> Sun Apr 15 21:21:33 2007 +0000
committer ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> Sun Apr 15 21:21:33 2007 +0000
tree d70b8fe5bf3574d586a01bf7194f95f65368b741
parent a85427b147f3174748a4eed13a7379a769bb05fd

Fix qemu SIGFPE caused by division-by-zero due to underflow.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2673 c046a42c-6fe2-441c-8c8c-71466251a162

target-mips/op.c

diff --git a/target-mips/op.c b/target-mips/op.c
index 9e9f8eb..2ea84b6 100644
--- a/target-mips/op.c
+++ b/target-mips/op.c
@@ -368,14 +368,22 @@
     RETURN();
 }
 
+#if HOST_LONG_BITS < 64
+void op_div (void)
+{
+    CALL_FROM_TB0(do_div);
+    RETURN();
+}
+#else
 void op_div (void)
 {
     if (T1 != 0) {
-        env->LO = (int32_t)((int32_t)T0 / (int32_t)T1);
-        env->HI = (int32_t)((int32_t)T0 % (int32_t)T1);
+        env->LO = (int32_t)((int64_t)(int32_t)T0 / (int32_t)T1);
+        env->HI = (int32_t)((int64_t)(int32_t)T0 % (int32_t)T1);
     }
     RETURN();
 }
+#endif
 
 void op_divu (void)
 {
@@ -432,7 +440,6 @@
     RETURN();
 }
 
-#if TARGET_LONG_BITS > HOST_LONG_BITS
 /* Those might call libgcc functions.  */
 void op_ddiv (void)
 {
@@ -440,21 +447,13 @@
     RETURN();
 }
 
+#if TARGET_LONG_BITS > HOST_LONG_BITS
 void op_ddivu (void)
 {
     do_ddivu();
     RETURN();
 }
 #else
-void op_ddiv (void)
-{
-    if (T1 != 0) {
-        env->LO = (int64_t)T0 / (int64_t)T1;
-        env->HI = (int64_t)T0 % (int64_t)T1;
-    }
-    RETURN();
-}
-
 void op_ddivu (void)
 {
     if (T1 != 0) {