void helper_sysenter(void) { if (env->sysenter_cs == 0) { raise_exception_err(EXCP0D_GPF, 0); } env->eflags &= ~(VM_MASK | IF_MASK | RF_MASK); cpu_x86_set_cpl(env, 0); cpu_x86_load_seg_cache(env, R_CS, env->sysenter_cs & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK | DESC_R_MASK | DESC_A_MASK); cpu_x86_load_seg_cache(env, R_SS, (env->sysenter_cs + 8) & 0xfffc, 0, 0xffffffff, DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | DESC_W_MASK | DESC_A_MASK); ESP = env->sysenter_esp; EIP = env->sysenter_eip; }