Add instruction counter.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162

2 files changed, 24 insertions, 1 deletions

diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index b56dc91ff5..03bc2dfd09 100644
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -437,6 +437,11 @@ static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 }
 #endif
 
+#define CPU_PC_FROM_TB(env, tb) do { \
+    env->pc = tb->pc; \
+    env->npc = tb->cs_base; \
+    } while(0)
+
 #include "cpu-all.h"
 
 #endif
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index 98c6291502..49f998e90b 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -48,6 +48,8 @@ static TCGv cpu_xcc;
 /* local register indexes (only used inside old micro ops) */
 static TCGv cpu_tmp0, cpu_tmp32, cpu_tmp64;
 
+#include "gen-icount.h"
+
 typedef struct DisasContext {
     target_ulong pc;    /* current Program Counter: integer or DYNAMIC_PC */
     target_ulong npc;   /* next PC: integer or DYNAMIC_PC or JUMP_PC */
@@ -4719,6 +4721,8 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
     uint16_t *gen_opc_end;
     DisasContext dc1, *dc = &dc1;
     int j, lj = -1;
+    int num_insns;
+    int max_insns;
 
     memset(dc, 0, sizeof(DisasContext));
     dc->tb = tb;
@@ -4747,6 +4751,11 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
     cpu_val = tcg_temp_local_new(TCG_TYPE_TL);
     cpu_addr = tcg_temp_local_new(TCG_TYPE_TL);
 
+    num_insns = 0;
+    max_insns = tb->cflags & CF_COUNT_MASK;
+    if (max_insns == 0)
+        max_insns = CF_COUNT_MASK;
+    gen_icount_start();
     do {
         if (env->nb_breakpoints > 0) {
             for(j = 0; j < env->nb_breakpoints; j++) {
@@ -4771,10 +4780,14 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
                 gen_opc_pc[lj] = dc->pc;
                 gen_opc_npc[lj] = dc->npc;
                 gen_opc_instr_start[lj] = 1;
+                gen_opc_icount[lj] = num_insns;
             }
         }
+        if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
+            gen_io_start();
         last_pc = dc->pc;
         disas_sparc_insn(dc);
+        num_insns++;
 
         if (dc->is_br)
             break;
@@ -4793,7 +4806,8 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
             break;
         }
     } while ((gen_opc_ptr < gen_opc_end) &&
-             (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));
+             (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32) &&
+             num_insns < max_insns);
 
  exit_gen_loop:
     tcg_temp_free(cpu_addr);
@@ -4802,6 +4816,8 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
     tcg_temp_free(cpu_tmp64);
     tcg_temp_free(cpu_tmp32);
     tcg_temp_free(cpu_tmp0);
+    if (tb->cflags & CF_LAST_IO)
+        gen_io_end();
     if (!dc->is_br) {
         if (dc->pc != DYNAMIC_PC &&
             (dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {
@@ -4814,6 +4830,7 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
             tcg_gen_exit_tb(0);
         }
     }
+    gen_icount_end(tb, num_insns);
     *gen_opc_ptr = INDEX_op_end;
     if (spc) {
         j = gen_opc_ptr - gen_opc_buf;
@@ -4829,6 +4846,7 @@ static inline int gen_intermediate_code_internal(TranslationBlock * tb,
         gen_opc_jump_pc[1] = dc->jump_pc[1];
     } else {
         tb->size = last_pc + 4 - pc_start;
+        tb->icount = num_insns;
     }
 #ifdef DEBUG_DISAS
     if (loglevel & CPU_LOG_TB_IN_ASM) {