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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2008-06-29 01:03:05 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2008-06-29 01:03:05 +0000
commit2e70f6efa8b960d3b5401373ad6fa98747bb9578 (patch)
tree4864a691a4d52324fe4626261e202525dd3a8659 /translate-all.c
parentf6e5889e7f581d286cd2153a71c386795a7070ac (diff)
Add instruction counter.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'translate-all.c')
-rw-r--r--translate-all.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/translate-all.c b/translate-all.c
index 8b8b6a2813..263649578b 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -38,6 +38,7 @@ uint16_t gen_opc_buf[OPC_BUF_SIZE];
TCGArg gen_opparam_buf[OPPARAM_BUF_SIZE];
target_ulong gen_opc_pc[OPC_BUF_SIZE];
+uint16_t gen_opc_icount[OPC_BUF_SIZE];
uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
#if defined(TARGET_I386)
uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
@@ -158,6 +159,13 @@ int cpu_restore_state(TranslationBlock *tb,
if (gen_intermediate_code_pc(env, tb) < 0)
return -1;
+ if (use_icount) {
+ /* Reset the cycle counter to the start of the block. */
+ env->icount_decr.u16.low += tb->icount;
+ /* Clear the IO flag. */
+ env->can_do_io = 0;
+ }
+
/* find opc index corresponding to search_pc */
tc_ptr = (unsigned long)tb->tc_ptr;
if (searched_pc < tc_ptr)
@@ -177,6 +185,7 @@ int cpu_restore_state(TranslationBlock *tb,
/* now find start of instruction before */
while (gen_opc_instr_start[j] == 0)
j--;
+ env->icount_decr.u16.low -= gen_opc_icount[j];
gen_pc_load(env, tb, searched_pc, j, puc);