From 18df2c8e8ac8c01ce6540e4e083be553359d2575 Mon Sep 17 00:00:00 2001
From: jaortega <jaortega>
Date: Sun, 17 Dec 2000 20:55:29 +0000
Subject: (mix_vm_get_break_lineno) use of the new mix_vm.address_table member.

---
 mixlib/mix_vm.c | 59 ++++++++++++++++++++++++++-------------------------------
 1 file changed, 27 insertions(+), 32 deletions(-)

(limited to 'mixlib')

diff --git a/mixlib/mix_vm.c b/mixlib/mix_vm.c
index 37a0c6d..d1ad6e7 100644
--- a/mixlib/mix_vm.c
+++ b/mixlib/mix_vm.c
@@ -47,6 +47,11 @@ vm_reset_ (mix_vm_t *vm)
       g_tree_destroy (vm->line_table);
       vm->line_table = NULL;
     }
+  if (vm->address_table != NULL)
+    {
+      g_tree_destroy (vm->address_table);
+      vm->address_table = NULL;
+    }
   bp_clear_all_ (vm);
 }
 
@@ -59,6 +64,7 @@ mix_vm_new (void)
   
   mix_vm_t *vm = g_new (struct mix_vm_t,1);
   vm->line_table = NULL;
+  vm->address_table = NULL;
   vm->symbol_table = NULL;
   
   for (i = 0; i < BD_NO_; ++i)
@@ -68,12 +74,14 @@ mix_vm_new (void)
   return vm;
 }
 
+
 void
 mix_vm_delete (mix_vm_t * vm)
 {
   int i;
   
   if (vm->line_table != NULL) g_tree_destroy (vm->line_table);
+  if (vm->address_table != NULL) g_tree_destroy (vm->address_table);
   if (vm->symbol_table != NULL) mix_symbol_table_delete (vm->symbol_table);
   for (i = 0; i < BD_NO_; ++i)
     mix_device_delete (vm->devices[i]);
@@ -224,9 +232,9 @@ mix_vm_exec_ins (mix_vm_t *vm, const mix_ins_t *ins)
   return (*ins_handlers_[ins->opcode]) (vm,ins);
 }
 
-/* comparison function for the line table tree */
+/* comparison function for the line and address tables tree */
 static gint
-cmp_lineno_ (gconstpointer a, gconstpointer b)
+cmp_uint_ (gconstpointer a, gconstpointer b)
 {
   return GPOINTER_TO_UINT (a) - GPOINTER_TO_UINT (b);
 }
@@ -244,15 +252,21 @@ mix_vm_load_file (mix_vm_t *vm, const gchar *name)
   if ( mix_code_file_is_debug (file) )
     {
       vm->symbol_table = mix_code_file_get_symbol_table (file);
-      vm->line_table = g_tree_new (cmp_lineno_);
+      vm->line_table = g_tree_new (cmp_uint_);
+      vm->address_table = g_tree_new (cmp_uint_);
     }
   while ( mix_code_file_get_ins (file, &ins) ) 
     {
       set_cell_ (vm, ins.address, ins.ins);
       if ( vm->line_table != NULL )
-	g_tree_insert (vm->line_table, 
-		       GUINT_TO_POINTER (ins.lineno),
-		       GUINT_TO_POINTER ((guint)ins.address));
+	{
+	  g_tree_insert (vm->line_table, 
+			 GUINT_TO_POINTER (ins.lineno),
+			 GUINT_TO_POINTER ((guint)ins.address));
+	  g_tree_insert (vm->address_table, 
+			 GUINT_TO_POINTER ((guint)ins.address),
+			 GUINT_TO_POINTER (ins.lineno));
+	}
     }
   set_loc_ (vm, mix_code_file_get_start_addr (file));
   set_start_ (vm, get_loc_ (vm));
@@ -314,36 +328,17 @@ mix_vm_exec_next (mix_vm_t *vm)
 }
 
 /* Breakpoints */
-typedef struct
-{
-  mix_address_t address;
-  gulong lineno;
-} fline_t;
-
-static int
-find_break_ (gpointer key, gpointer value, gpointer data)
-{
-  fline_t *fl = (fline_t *)data;
-  
-  if ( mix_short_new (GPOINTER_TO_UINT (value)) == fl->address )
-    {
-      fl->lineno = GPOINTER_TO_UINT (key);
-      return TRUE;
-    }
-  return FALSE;
-}
-
 gulong
 mix_vm_get_break_lineno (const mix_vm_t *vm)
 {
-  fline_t fl;
-  
   g_return_val_if_fail (vm != NULL, 0);
-  if (vm->line_table == NULL) return 0;
-  fl.lineno = 0;
-  fl.address = get_loc_ (vm);
-  g_tree_traverse (vm->line_table, find_break_, G_IN_ORDER, (gpointer) &fl);
-  return fl.lineno;
+  if (vm->address_table == NULL)
+    return 0;
+  else
+    {
+      gpointer loc = GUINT_TO_POINTER ((guint)get_loc_ (vm));
+      return GPOINTER_TO_UINT (g_tree_lookup (vm->address_table,loc));
+    }
 }
 
 typedef struct 
-- 
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