Add instruction counter.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4799 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2008-06-29 01:03:05 +00:00
parent f6e5889e7f
commit 2e70f6efa8
29 changed files with 830 additions and 117 deletions

View file

@ -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);