pa2.2: add ITRACE buffer

nemu/include/cpu/decode.h

@@ -23,7 +23,6 @@ typedef struct Decode {
   vaddr_t snpc; // static next pc
   vaddr_t dnpc; // dynamic next pc
   ISADecodeInfo isa;
-  IFDEF(CONFIG_ITRACE, char logbuf[128]);
 } Decode;
 
 // --- pattern matching mechanism ---

nemu/include/debug.h

@@ -38,6 +38,7 @@
       MUXDEF(CONFIG_TARGET_AM, printf(ANSI_FMT(format, ANSI_FG_RED) "\n", ## __VA_ARGS__), \
         (fflush(stdout), fprintf(stderr, ANSI_FMT(format, ANSI_FG_RED) "\n", ##  __VA_ARGS__))); \
       IFNDEF(CONFIG_TARGET_AM, extern FILE* log_fp; fflush(log_fp)); \
+      IFDEF(CONFIG_ITRACE, log_itrace_print()); \
       extern void assert_fail_msg(); \
       assert_fail_msg(); \
       assert(cond); \

nemu/include/utils.h

@@ -74,4 +74,7 @@ uint64_t get_time();
   } while (0)
 
 
+IFDEF(CONFIG_ITRACE, void log_itrace_print());
+
+
 #endif