From 022c62cbbcf1ff40b23c92874f8670cddfec2414 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 17 Dec 2012 18:19:49 +0100 Subject: exec: move include files to include/exec/ Signed-off-by: Paolo Bonzini --- include/exec/gen-icount.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 include/exec/gen-icount.h (limited to 'include/exec/gen-icount.h') diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h new file mode 100644 index 0000000000..1541f0b1e4 --- /dev/null +++ b/include/exec/gen-icount.h @@ -0,0 +1,53 @@ +#ifndef GEN_ICOUNT_H +#define GEN_ICOUNT_H 1 + +#include "qemu-timer.h" + +/* Helpers for instruction counting code generation. */ + +static TCGArg *icount_arg; +static int icount_label; + +static inline void gen_icount_start(void) +{ + TCGv_i32 count; + + if (!use_icount) + return; + + icount_label = gen_new_label(); + count = tcg_temp_local_new_i32(); + tcg_gen_ld_i32(count, cpu_env, offsetof(CPUArchState, icount_decr.u32)); + /* This is a horrid hack to allow fixing up the value later. */ + icount_arg = tcg_ctx.gen_opparam_ptr + 1; + tcg_gen_subi_i32(count, count, 0xdeadbeef); + + tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, icount_label); + tcg_gen_st16_i32(count, cpu_env, offsetof(CPUArchState, icount_decr.u16.low)); + tcg_temp_free_i32(count); +} + +static void gen_icount_end(TranslationBlock *tb, int num_insns) +{ + if (use_icount) { + *icount_arg = num_insns; + gen_set_label(icount_label); + tcg_gen_exit_tb((tcg_target_long)tb + 2); + } +} + +static inline void gen_io_start(void) +{ + TCGv_i32 tmp = tcg_const_i32(1); + tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUArchState, can_do_io)); + tcg_temp_free_i32(tmp); +} + +static inline void gen_io_end(void) +{ + TCGv_i32 tmp = tcg_const_i32(0); + tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUArchState, can_do_io)); + tcg_temp_free_i32(tmp); +} + +#endif -- cgit v1.2.3