Better handled the case where decoding fails.

git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@26 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a

1 files changed, 8 insertions, 1 deletions

diff --git a/src/arch/x86/processor.c b/src/arch/x86/processor.c
index c7382ed..118dbd6 100644
--- a/src/arch/x86/processor.c
+++ b/src/arch/x86/processor.c
@@ -302,6 +302,7 @@ asm_instr *x86_fetch_instruction(const asm_x86_processor *proc, const uint8_t *d
     asm_x86_instr *result;                  /* Résultat à faire remonter   */
     X86Opcodes i;                           /* Boucle de parcours          */
     off_t tmp;                              /* Tête de lecture             */
+    off_t old_pos;                          /* Sauvegarde de la position   */
 
     result = NULL;
 
@@ -326,9 +327,15 @@ asm_instr *x86_fetch_instruction(const asm_x86_processor *proc, const uint8_t *d
         if (proc->opcodes[i].has_op_ext && (data[tmp] & EXT_OPCODE_MASK) != proc->opcodes[i].op_ext)
             continue;
 
+        old_pos = *pos;
+
         result = proc->opcodes[i].read(data, pos, len, offset, proc);
         if (result != NULL) result->type = i;
-        else printf("err while decoding :: [0x%02hhx] 0x%02hhx\n", proc->opcodes[i].prefix, proc->opcodes[i].opcode);
+        else
+        {
+            *pos = old_pos;
+            printf("err while decoding at 0x%08llx :: [0x%02hhx] 0x%02hhx\n", offset, proc->opcodes[i].prefix, proc->opcodes[i].opcode);
+        }
         break;
 
     }