# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1362941478 -3600
# Node ID d982f1469cba0ba6a4ca5032aacd516e8eed4028
# Parent  da10229e5a339fd373c570d9ca152acb3d7289c5
Fix bit scan assembler instructions.

diff -r da10229e5a33 -r d982f1469cba graal/com.oracle.graal.asm.amd64/src/com/oracle/graal/asm/amd64/AMD64Assembler.java
--- a/graal/com.oracle.graal.asm.amd64/src/com/oracle/graal/asm/amd64/AMD64Assembler.java	Fri Mar 08 11:23:28 2013 +0100
+++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/graal/asm/amd64/AMD64Assembler.java	Sun Mar 10 19:51:18 2013 +0100
@@ -447,7 +447,8 @@
     }
 
     public final void bsfq(Register dst, AMD64Address src) {
-        prefixq(src, dst);
+        emitByte(Prefix.REXW);
+        emitByte(0x0F);
         emitByte(0xBC);
         emitOperandHelper(dst, src);
     }
@@ -460,7 +461,8 @@
     }
 
     public final void bsrq(Register dst, AMD64Address src) {
-        prefixq(src, dst);
+        emitByte(Prefix.REXW);
+        emitByte(0x0F);
         emitByte(0xBD);
         emitOperandHelper(dst, src);
     }
@@ -474,6 +476,7 @@
 
     public final void bsrl(Register dst, AMD64Address src) {
         prefix(src, dst);
+        emitByte(0x0F);
         emitByte(0xBD);
         emitOperandHelper(dst, src);
     }