debugger changes/additions

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@414

ChangeLog

@@ -13,6 +13,8 @@
   - VGA fixes
   - new wildcompare
   - support for size and disktype at mount.
+  - added new debugger functionalities: start/trace into INTs, write processor status log, 
+    step over rep and loop instructions, breakpoint support without using INT 03 (heavy debugging switch)
   
 0.55
   - fixed the errors/warnings in prefix_66.h and prefix_66_of.h (decimal too large becomming unsigned).

src/cpu/core_16/main.h

@@ -1079,7 +1079,7 @@ restart:
 					goto reploop;
 #ifdef CPU_386
 				case 0x66:
-					Rep_66(direct,from,to,repcheck);
+					Rep_66(direct,from,to);
 					break;
 #endif