Il 15/09/2014 22:01, Richard Henderson ha scritto:
@@ -1006,6 +1006,7 @@ void helper_fstenv(CPUX86State *env, target_ulong
ptr, int data32)
cpu_stw_data(env, ptr + 10, 0);
cpu_stw_data(env, ptr + 12, 0);
}
+update_fp_status(env);
}
Why does this need to
This patch adds calls to update_fp_status() function from several
places where FPU state is changed. These calls update status of
softfloat library and prevent bugs caused by non-coherent rounding
settings of the FPU and softfloat.
Signed-off-by: Pavel Dovgalyuk pavel.dovga...@ispras.ru
---
Il 15/09/2014 13:17, Pavel Dovgalyuk ha scritto:
This patch adds calls to update_fp_status() function from several
places where FPU state is changed. These calls update status of
softfloat library and prevent bugs caused by non-coherent rounding
settings of the FPU and softfloat.
On 09/15/2014 04:17 AM, Pavel Dovgalyuk wrote:
@@ -1006,6 +1006,7 @@ void helper_fstenv(CPUX86State *env, target_ulong ptr,
int data32)
cpu_stw_data(env, ptr + 10, 0);
cpu_stw_data(env, ptr + 12, 0);
}
+update_fp_status(env);
}
Why does this need to update
update_fp_status() should be used after all of env-fpuc changes :
helper_fldcw(), helper_fninit(), helper_fldenv()
,helper_fxrstor(), helper_fsave(), x86_cpu_reset(), cpu_post_load().
On Mon, Sep 15, 2014 at 7:17 PM, Pavel Dovgalyuk
pavel.dovga...@ispras.ru wrote:
This patch adds calls to
On Tue, Sep 16, 2014 at 1:42 PM, TeLeMan gele...@gmail.com wrote:
update_fp_status() should be used after all of env-fpuc changes :
helper_fldcw(), helper_fninit(), helper_fldenv()
,helper_fxrstor(), helper_fsave(), x86_cpu_reset(), cpu_post_load().
missing one: x86_cpu_gdb_write_register().
I suggest using cpu_set_fpuc() like cpu_set_mxcsr().
On Tue, Sep 16, 2014 at 1:51 PM, TeLeMan gele...@gmail.com wrote:
On Tue, Sep 16, 2014 at 1:42 PM, TeLeMan gele...@gmail.com wrote:
update_fp_status() should be used after all of env-fpuc changes :
helper_fldcw(), helper_fninit(),
