* [Qemu-devel] [PATCH v2] target-sparc64: implement Short Floating-Point Store Instructions
@ 2014-08-12 20:02 Artyom Tarasenko
2014-08-13 16:38 ` Richard Henderson
0 siblings, 1 reply; 3+ messages in thread
From: Artyom Tarasenko @ 2014-08-12 20:02 UTC (permalink / raw)
To: qemu-devel; +Cc: blauwirbel, mark.cave-ayland, Artyom Tarasenko, rth
Implement Short Floating-Point Store Instructions as described
in the chapter 13.5.2 of UltraSPARC-IIi User's Manual.
Particularly this instructions are used by NetBSD 4.0.1+ /sparc64
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
With this patch applied on top of cmd646 patches it's possible to install
and boot NetBSD 6.1.4 /sparc64.
Changes from v0: corrected the comment messages, it's store, not load.
target-sparc/ldst_helper.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c
index 03bd9f9..736d953 100644
--- a/target-sparc/ldst_helper.c
+++ b/target-sparc/ldst_helper.c
@@ -2154,7 +2154,6 @@ void helper_stf_asi(CPUSPARCState *env, target_ulong addr, int asi, int size,
unsigned int i;
target_ulong val;
- helper_check_align(env, addr, 3);
addr = asi_address_mask(env, asi, addr);
switch (asi) {
@@ -2192,7 +2191,21 @@ void helper_stf_asi(CPUSPARCState *env, target_ulong addr, int asi, int size,
}
return;
+ case 0xd2: /* 16-bit floating point store primary */
+ case 0xd3: /* 16-bit floating point store secondary */
+ case 0xda: /* 16-bit floating point store primary, LE */
+ case 0xdb: /* 16-bit floating point store secondary, LE */
+ helper_check_align(env, addr, 1);
+ /* Fall through */
+ case 0xd0: /* 8-bit floating point store primary */
+ case 0xd1: /* 8-bit floating point store secondary */
+ case 0xd8: /* 8-bit floating point store primary, LE */
+ case 0xd9: /* 8-bit floating point store secondary, LE */
+ val = env->fpr[rd/2].l.lower;
+ helper_st_asi(env, addr, val, asi & 0x8d, ((asi & 2) >> 1) + 1);
+ return;
default:
+ helper_check_align(env, addr, 3);
break;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] [PATCH v2] target-sparc64: implement Short Floating-Point Store Instructions
2014-08-12 20:02 [Qemu-devel] [PATCH v2] target-sparc64: implement Short Floating-Point Store Instructions Artyom Tarasenko
@ 2014-08-13 16:38 ` Richard Henderson
2014-08-17 12:50 ` Mark Cave-Ayland
0 siblings, 1 reply; 3+ messages in thread
From: Richard Henderson @ 2014-08-13 16:38 UTC (permalink / raw)
To: Artyom Tarasenko, qemu-devel; +Cc: blauwirbel, mark.cave-ayland
On 08/12/2014 10:02 AM, Artyom Tarasenko wrote:
> Implement Short Floating-Point Store Instructions as described
> in the chapter 13.5.2 of UltraSPARC-IIi User's Manual.
>
> Particularly this instructions are used by NetBSD 4.0.1+ /sparc64
>
> Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
> Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
> ---
> With this patch applied on top of cmd646 patches it's possible to install
> and boot NetBSD 6.1.4 /sparc64.
>
> Changes from v0: corrected the comment messages, it's store, not load.
Reviewed-by: Richard Henderson <rth@twiddle.net>
r~
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Qemu-devel] [PATCH v2] target-sparc64: implement Short Floating-Point Store Instructions
2014-08-13 16:38 ` Richard Henderson
@ 2014-08-17 12:50 ` Mark Cave-Ayland
0 siblings, 0 replies; 3+ messages in thread
From: Mark Cave-Ayland @ 2014-08-17 12:50 UTC (permalink / raw)
To: Richard Henderson, Artyom Tarasenko, qemu-devel; +Cc: blauwirbel
On 13/08/14 17:38, Richard Henderson wrote:
> On 08/12/2014 10:02 AM, Artyom Tarasenko wrote:
>> Implement Short Floating-Point Store Instructions as described
>> in the chapter 13.5.2 of UltraSPARC-IIi User's Manual.
>>
>> Particularly this instructions are used by NetBSD 4.0.1+ /sparc64
>>
>> Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
>> Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
>> ---
>> With this patch applied on top of cmd646 patches it's possible to install
>> and boot NetBSD 6.1.4 /sparc64.
>>
>> Changes from v0: corrected the comment messages, it's store, not load.
>
> Reviewed-by: Richard Henderson <rth@twiddle.net>
Thanks! I've applied this to my qemu-sparc with a minor spacing tweak.
ATB,
Mark.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-08-17 12:51 UTC | newest]
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2014-08-12 20:02 [Qemu-devel] [PATCH v2] target-sparc64: implement Short Floating-Point Store Instructions Artyom Tarasenko
2014-08-13 16:38 ` Richard Henderson
2014-08-17 12:50 ` Mark Cave-Ayland
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