* [Qemu-devel] [6103] Fix VFP fixed point conversion routines.
@ 2008-12-19 13:02 Paul Brook
0 siblings, 0 replies; only message in thread
From: Paul Brook @ 2008-12-19 13:02 UTC (permalink / raw)
To: qemu-devel
Revision: 6103
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6103
Author: pbrook
Date: 2008-12-19 13:02:08 +0000 (Fri, 19 Dec 2008)
Log Message:
-----------
Fix VFP fixed point conversion routines.
Signed-off-by: Paul Brook <paul@codesourcery.com>
Modified Paths:
--------------
trunk/target-arm/helper.c
trunk/target-arm/translate.c
Modified: trunk/target-arm/helper.c
===================================================================
--- trunk/target-arm/helper.c 2008-12-19 12:59:28 UTC (rev 6102)
+++ trunk/target-arm/helper.c 2008-12-19 13:02:08 UTC (rev 6103)
@@ -2522,7 +2522,7 @@
ftype tmp; \
tmp = sign##int32_to_##ftype ((itype)vfp_##p##toi(x), \
&env->vfp.fp_status); \
- return ftype##_scalbn(tmp, shift, &env->vfp.fp_status); \
+ return ftype##_scalbn(tmp, -(int)shift, &env->vfp.fp_status); \
} \
ftype VFP_HELPER(to##name, p)(ftype x, uint32_t shift, CPUState *env) \
{ \
Modified: trunk/target-arm/translate.c
===================================================================
--- trunk/target-arm/translate.c 2008-12-19 12:59:28 UTC (rev 6102)
+++ trunk/target-arm/translate.c 2008-12-19 13:02:08 UTC (rev 6103)
@@ -3001,6 +3001,10 @@
case 21:
case 22:
case 23:
+ case 28:
+ case 29:
+ case 30:
+ case 31:
/* Source and destination the same. */
gen_mov_F0_vreg(dp, rd);
break;
@@ -3120,22 +3124,22 @@
case 20: /* fshto */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_shto(dp, rm);
+ gen_vfp_shto(dp, 16 - rm);
break;
case 21: /* fslto */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_slto(dp, rm);
+ gen_vfp_slto(dp, 32 - rm);
break;
case 22: /* fuhto */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_uhto(dp, rm);
+ gen_vfp_uhto(dp, 16 - rm);
break;
case 23: /* fulto */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_ulto(dp, rm);
+ gen_vfp_ulto(dp, 32 - rm);
break;
case 24: /* ftoui */
gen_vfp_toui(dp);
@@ -3152,22 +3156,22 @@
case 28: /* ftosh */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_tosh(dp, rm);
+ gen_vfp_tosh(dp, 16 - rm);
break;
case 29: /* ftosl */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_tosl(dp, rm);
+ gen_vfp_tosl(dp, 32 - rm);
break;
case 30: /* ftouh */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_touh(dp, rm);
+ gen_vfp_touh(dp, 16 - rm);
break;
case 31: /* ftoul */
if (!arm_feature(env, ARM_FEATURE_VFP3))
return 1;
- gen_vfp_toul(dp, rm);
+ gen_vfp_toul(dp, 32 - rm);
break;
default: /* undefined */
printf ("rn:%d\n", rn);
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