commit f757d6ff29128dd0a09e02299306be22fa38821e
author ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> Sat Apr 07 01:09:17 2007 +0000
committer ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> Sat Apr 07 01:09:17 2007 +0000
tree 62ad012686ea6c42050aed88d9c8cb766add3c6e
parent d85fb99bf7ad9b6ebf163c2276333cef4faec147

Fix ins/ext cornercase.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2627 c046a42c-6fe2-441c-8c8c-71466251a162

target-mips/op.c

diff --git a/target-mips/op.c b/target-mips/op.c
index 5048bc0..1e2dbc8 100644
--- a/target-mips/op.c
+++ b/target-mips/op.c
@@ -2232,7 +2232,7 @@
     unsigned int pos = PARAM1;
     unsigned int size = PARAM2;
 
-    T0 = ((uint32_t)T1 >> pos) & ((1 << size) - 1);
+    T0 = ((uint32_t)T1 >> pos) & ((size < 32) ? ((1 << size) - 1) : ~0);
     RETURN();
 }
 
@@ -2240,7 +2240,7 @@
 {
     unsigned int pos = PARAM1;
     unsigned int size = PARAM2;
-    target_ulong mask = ((1 << size) - 1) << pos;
+    target_ulong mask = ((size < 32) ? ((1 << size) - 1) : ~0) << pos;
 
     T0 = (T2 & ~mask) | (((uint32_t)T1 << pos) & mask);
     RETURN();
@@ -2258,7 +2258,7 @@
     unsigned int pos = PARAM1;
     unsigned int size = PARAM2;
 
-    T0 = (T1 >> pos) & ((1 << size) - 1);
+    T0 = (T1 >> pos) & ((size < 32) ? ((1 << size) - 1) : ~0);
     RETURN();
 }
 
@@ -2266,7 +2266,7 @@
 {
     unsigned int pos = PARAM1;
     unsigned int size = PARAM2;
-    target_ulong mask = ((1 << size) - 1) << pos;
+    target_ulong mask = ((size < 32) ? ((1 << size) - 1) : ~0) << pos;
 
     T0 = (T2 & ~mask) | ((T1 << pos) & mask);
     RETURN();