X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_decoder.c;h=e859ee5bae65d113900b7de46c70fceb320e13c4;hb=f9bb3db89469169bb5775dc031d89e570c6fed70;hp=6884d33c247088d1ddd5509516801edddf1bb2dd;hpb=f224dad455ede0cdeadb60d0e428afcc869a4b2d;p=palacios.releases.git

diff --git a/palacios/src/palacios/vmm_decoder.c b/palacios/src/palacios/vmm_decoder.c
index 6884d33..e859ee5 100644
--- a/palacios/src/palacios/vmm_decoder.c
+++ b/palacios/src/palacios/vmm_decoder.c
@@ -1,2 +1,33 @@
+/* Northwestern University */
+/* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
+
 #include <palacios/vmm_decoder.h>
 
+
+int 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 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++;
+    }
+  }
+}