X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_decoder.c;fp=palacios%2Fsrc%2Fpalacios%2Fvmm_decoder.c;h=593b038ab3fc6ba2b142af8bfd880eeeb26ede56;hp=0000000000000000000000000000000000000000;hb=ddc16b0737cf58f7aa90a69c6652cdf4090aec51;hpb=626595465a2c6987606a6bc697df65130ad8c2d3

diff --git a/palacios/src/palacios/vmm_decoder.c b/palacios/src/palacios/vmm_decoder.c
new file mode 100644
index 0000000..593b038
--- /dev/null
+++ b/palacios/src/palacios/vmm_decoder.c
@@ -0,0 +1,50 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+
+#include <palacios/vmm_decoder.h>
+
+
+int v3_opcode_cmp(const uchar_t * op1, const uchar_t * op2) {
+  if (op1[0] != op2[0]) {
+    return op1[0] - op2[0];;
+  } else {
+    return memcmp(op1 + 1, op2 + 1, op1[0]);
+  }
+}
+
+
+void v3_strip_rep_prefix(uchar_t * instr, int length) {
+  int read_ctr = 0;
+  int write_ctr = 0;
+  int found = 0;
+
+  while (read_ctr < length) {
+    if ((!found) && 
+	( (instr[read_ctr] == 0xF2) ||
+	  (instr[read_ctr] == 0xF3))) {
+      read_ctr++;
+      found = 1;
+    } else {
+      instr[write_ctr] = instr[read_ctr];
+      write_ctr++;
+      read_ctr++;
+    }
+  }
+}