* [Qemu-devel] [PATCH] MIPS: add support for cvt.s.d and cvt.d.s
@ 2006-09-28 23:45 Aurelien Jarno
2006-10-22 21:02 ` Aurelien Jarno
0 siblings, 1 reply; 3+ messages in thread
From: Aurelien Jarno @ 2006-09-28 23:45 UTC (permalink / raw)
To: qemu-devel; +Cc: linux-mips
Hi,
The patch below implements the cvt.s.d and cvt.d.s instructions for the
mips target. They are need to be able to execute the cp and the find
programs.
Bye,
Aurelien
Index: target-mips/op.c
===================================================================
RCS file: /sources/qemu/qemu/target-mips/op.c,v
retrieving revision 1.9
diff -u -r1.9 op.c
--- target-mips/op.c 26 Jun 2006 20:29:47 -0000 1.9
+++ target-mips/op.c 28 Sep 2006 23:42:30 -0000
@@ -785,12 +785,24 @@
#define FLOAT_OP(name, p) void OPPROTO op_float_##name##_##p(void)
+FLOAT_OP(cvtd, s)
+{
+ FDT2 = float32_to_float64(WT0, &env->fp_status);
+ DEBUG_FPU_STATE();
+ RETURN();
+}
FLOAT_OP(cvtd, w)
{
FDT2 = int32_to_float64(WT0, &env->fp_status);
DEBUG_FPU_STATE();
RETURN();
}
+FLOAT_OP(cvts, d)
+{
+ FST2 = float64_to_float32(WT0, &env->fp_status);
+ DEBUG_FPU_STATE();
+ RETURN();
+}
FLOAT_OP(cvts, w)
{
FST2 = int32_to_float32(WT0, &env->fp_status);
Index: target-mips/translate.c
===================================================================
RCS file: /sources/qemu/qemu/target-mips/translate.c,v
retrieving revision 1.15
diff -u -r1.15 translate.c
--- target-mips/translate.c 26 Jun 2006 20:02:45 -0000 1.15
+++ target-mips/translate.c 28 Sep 2006 23:42:30 -0000
@@ -1675,6 +1675,13 @@
GEN_STORE_FTN_FREG(fd, WT2);
opn = "ceil.w.d";
break;
+ case FOP(33, 16): /* cvt.d.s */
+ CHECK_FR(ctx, fs | fd);
+ GEN_LOAD_FREG_FTN(WT0, fs);
+ gen_op_float_cvtd_s();
+ GEN_STORE_FTN_FREG(fd, DT2);
+ opn = "cvt.d.s";
+ break;
case FOP(33, 20): /* cvt.d.w */
CHECK_FR(ctx, fs | fd);
GEN_LOAD_FREG_FTN(WT0, fs);
@@ -1782,6 +1789,13 @@
GEN_STORE_FTN_FREG(fd, WT2);
opn = "trunc.w.s";
break;
+ case FOP(32, 17): /* cvt.s.d */
+ CHECK_FR(ctx, fs | fd);
+ GEN_LOAD_FREG_FTN(WT0, fs);
+ gen_op_float_cvts_d();
+ GEN_STORE_FTN_FREG(fd, WT2);
+ opn = "cvt.s.d";
+ break;
case FOP(32, 20): /* cvt.s.w */
CHECK_FR(ctx, fs | fd);
GEN_LOAD_FREG_FTN(WT0, fs);
--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' aurel32@debian.org | aurelien@aurel32.net
`- people.debian.org/~aurel32 | www.aurel32.net
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH] MIPS: add support for cvt.s.d and cvt.d.s
2006-09-28 23:45 [Qemu-devel] [PATCH] MIPS: add support for cvt.s.d and cvt.d.s Aurelien Jarno
@ 2006-10-22 21:02 ` Aurelien Jarno
2006-10-23 10:29 ` Marius Groeger
0 siblings, 1 reply; 3+ messages in thread
From: Aurelien Jarno @ 2006-10-22 21:02 UTC (permalink / raw)
To: qemu-devel; +Cc: linux-mips
Hi all,
The patch below has been posted 3 weeks ago, but I haven't received any
comment yet. If you need to be convinced that the patch is needed, you
can download a test case from http://temp.aurel32.net/test_cvt.tar.gz
made using files from Debian unstable:
[bode:/tmp]$ tar xvfz test_cvt.tar.gz
test_cvt/
test_cvt/bin/
test_cvt/bin/find
test_cvt/etc/
test_cvt/etc/ld.so.cache
test_cvt/lib/
test_cvt/lib/ld.so.1
test_cvt/lib/libc.so.6
[bode:/tmp]$ cd test_cvt/
[bode:/tmp/test_cvt]$ qemu-mips.orig -L $PWD bin/find
qemu: uncaught target signal 4 (Illegal instruction) - exiting
[bode:/tmp/test_cvt]$ qemu-mips -L $PWD bin/find
.
./lib
./lib/libc.so.6
./lib/ld.so.1
./etc
./etc/ld.so.cache
./bin
./bin/find
qemu-mips.orig is the qemu binary without the patch, qemu-mips is the
qemu binary with the patch.
Could somebody please have a look to the patch (or even merge it)?
Thanks,
Aurelien
Aurelien Jarno a écrit :
> Hi,
>
> The patch below implements the cvt.s.d and cvt.d.s instructions for the
> mips target. They are need to be able to execute the cp and the find
> programs.
>
> Bye,
> Aurelien
>
>
> Index: target-mips/op.c
> ===================================================================
> RCS file: /sources/qemu/qemu/target-mips/op.c,v
> retrieving revision 1.9
> diff -u -r1.9 op.c
> --- target-mips/op.c 26 Jun 2006 20:29:47 -0000 1.9
> +++ target-mips/op.c 28 Sep 2006 23:42:30 -0000
> @@ -785,12 +785,24 @@
>
> #define FLOAT_OP(name, p) void OPPROTO op_float_##name##_##p(void)
>
> +FLOAT_OP(cvtd, s)
> +{
> + FDT2 = float32_to_float64(WT0, &env->fp_status);
> + DEBUG_FPU_STATE();
> + RETURN();
> +}
> FLOAT_OP(cvtd, w)
> {
> FDT2 = int32_to_float64(WT0, &env->fp_status);
> DEBUG_FPU_STATE();
> RETURN();
> }
> +FLOAT_OP(cvts, d)
> +{
> + FST2 = float64_to_float32(WT0, &env->fp_status);
> + DEBUG_FPU_STATE();
> + RETURN();
> +}
> FLOAT_OP(cvts, w)
> {
> FST2 = int32_to_float32(WT0, &env->fp_status);
> Index: target-mips/translate.c
> ===================================================================
> RCS file: /sources/qemu/qemu/target-mips/translate.c,v
> retrieving revision 1.15
> diff -u -r1.15 translate.c
> --- target-mips/translate.c 26 Jun 2006 20:02:45 -0000 1.15
> +++ target-mips/translate.c 28 Sep 2006 23:42:30 -0000
> @@ -1675,6 +1675,13 @@
> GEN_STORE_FTN_FREG(fd, WT2);
> opn = "ceil.w.d";
> break;
> + case FOP(33, 16): /* cvt.d.s */
> + CHECK_FR(ctx, fs | fd);
> + GEN_LOAD_FREG_FTN(WT0, fs);
> + gen_op_float_cvtd_s();
> + GEN_STORE_FTN_FREG(fd, DT2);
> + opn = "cvt.d.s";
> + break;
> case FOP(33, 20): /* cvt.d.w */
> CHECK_FR(ctx, fs | fd);
> GEN_LOAD_FREG_FTN(WT0, fs);
> @@ -1782,6 +1789,13 @@
> GEN_STORE_FTN_FREG(fd, WT2);
> opn = "trunc.w.s";
> break;
> + case FOP(32, 17): /* cvt.s.d */
> + CHECK_FR(ctx, fs | fd);
> + GEN_LOAD_FREG_FTN(WT0, fs);
> + gen_op_float_cvts_d();
> + GEN_STORE_FTN_FREG(fd, WT2);
> + opn = "cvt.s.d";
> + break;
> case FOP(32, 20): /* cvt.s.w */
> CHECK_FR(ctx, fs | fd);
> GEN_LOAD_FREG_FTN(WT0, fs);
--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' aurel32@debian.org | aurelien@aurel32.net
`- people.debian.org/~aurel32 | www.aurel32.net
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [Qemu-devel] [PATCH] MIPS: add support for cvt.s.d and cvt.d.s
2006-10-22 21:02 ` Aurelien Jarno
@ 2006-10-23 10:29 ` Marius Groeger
0 siblings, 0 replies; 3+ messages in thread
From: Marius Groeger @ 2006-10-23 10:29 UTC (permalink / raw)
To: qemu-devel; +Cc: linux-mips
On Sun, 22 Oct 2006, Aurelien Jarno wrote:
> Could somebody please have a look to the patch (or even merge it)?
Looks ok to me.
Regards,
Marius
--
Marius Groeger <mgroeger@sysgo.com>
SYSGO AG Embedded and Real-Time Software
Voice: +49 6136 9948 0 FAX: +49 6136 9948 10
www.sysgo.com | www.elinos.com | www.osek.de | www.pikeos.com
^ permalink raw reply [flat|nested] 3+ messages in thread
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2006-09-28 23:45 [Qemu-devel] [PATCH] MIPS: add support for cvt.s.d and cvt.d.s Aurelien Jarno
2006-10-22 21:02 ` Aurelien Jarno
2006-10-23 10:29 ` Marius Groeger
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