16a9ef1773bf874dea493ff3861782a1e577b67ddDavid Turner#include "qemu-timer.h" 26a9ef1773bf874dea493ff3861782a1e577b67ddDavid Turner 38b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* Helpers for instruction counting code generation. */ 48b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 58b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic TCGArg *icount_arg; 68b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic int icount_label; 78b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 88b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic inline void gen_icount_start(void) 98b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 105d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner TCGv_i32 count; 118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (!use_icount) 138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return; 148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project icount_label = gen_new_label(); 165d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner count = tcg_temp_local_new_i32(); 178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_ld_i32(count, cpu_env, offsetof(CPUState, icount_decr.u32)); 188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project /* This is a horrid hack to allow fixing up the value later. */ 198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project icount_arg = gen_opparam_ptr + 1; 208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_subi_i32(count, count, 0xdeadbeef); 218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, icount_label); 238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_st16_i32(count, cpu_env, offsetof(CPUState, icount_decr.u16.low)); 245d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner tcg_temp_free_i32(count); 258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic void gen_icount_end(TranslationBlock *tb, int num_insns) 288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (use_icount) { 308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project *icount_arg = num_insns; 318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project gen_set_label(icount_label); 3217410ee4539bb5216421bb9f9dc287b1f678b6cdDavid 'Digit' Turner tcg_gen_exit_tb((tcg_target_long)tb + 2); 338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 369251866320b5f8329a043bb56b3a794f78d12849David 'Digit' Turnerstatic inline void gen_io_start(void) 378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 385d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner TCGv_i32 tmp = tcg_const_i32(1); 398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, can_do_io)); 405d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner tcg_temp_free_i32(tmp); 418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic inline void gen_io_end(void) 448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 455d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner TCGv_i32 tmp = tcg_const_i32(0); 468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project tcg_gen_st_i32(tmp, cpu_env, offsetof(CPUState, can_do_io)); 475d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner tcg_temp_free_i32(tmp); 488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 49