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Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32 |
Date: |
Tue, 17 Dec 2013 19:32:32 +0000 |
On 17 December 2013 17:45, Peter Maydell <address@hidden> wrote:
> I'm partway through fixing this bug in an implementation of
> float*_to_uint16 which the ARM AArch64 needs. I think the
> cleanest approach to this looks like this:
>
> uint32 float64_to_uint32( float64 a STATUS_PARAM )
> {
> int64_t v;
> uint32 res;
> int old_exc_flags = get_float_exception_flags(status);
>
> v = float64_to_uint64(a STATUS_VAR);
> if (v > 0xffffffff) {
> res = 0xffffffff;
> } else {
> return v;
> }
> set_float_exception_flags(old_exc_flags);
...should be
set_float_exception_flags(old_exc_flags, status);
> float_raise(float_flag_invalid STATUS_VAR);
> return res;
> }
thanks
-- PMM
- [Qemu-devel] [V2 PATCH 05/18] target-ppc: Add ISA 2.06 divwe[u][o] Instructions, (continued)
- [Qemu-devel] [V2 PATCH 05/18] target-ppc: Add ISA 2.06 divwe[u][o] Instructions, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 07/18] target-ppc: Add ISA 2.06 stbcx. and sthcx. Instructions, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 06/18] target-ppc: Add ISA2.06 lbarx, lharx Instructions, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 08/18] target-ppc: Add ISA2.06 Float to Integer Instructions, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 09/18] softfloat: Fix Handling of Small Negatives in float64_to_uint64, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 10/18] softfloat: Fix float64_to_uint64_round_to_zero, Tom Musta, 2013/12/11
- [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Tom Musta, 2013/12/11
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Peter Maydell, 2013/12/11
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Tom Musta, 2013/12/11
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Peter Maydell, 2013/12/17
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32,
Peter Maydell <=
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Tom Musta, 2013/12/18
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Peter Maydell, 2013/12/18
- Re: [Qemu-devel] [V2 PATCH 11/18] softfloat: Fix float64_to_uint32, Tom Musta, 2013/12/18
[Qemu-devel] [V2 PATCH 12/18] softfloat: Fix float64_to_uint32_round_to_zero, Tom Musta, 2013/12/11
[Qemu-devel] [V2 PATCH 13/18] target-ppc: Add ISA 2.06 fcfid[u][s] Instructions, Tom Musta, 2013/12/11
[Qemu-devel] [V2 PATCH 14/18] target-ppc: Fix and enable fri[mnpz], Tom Musta, 2013/12/11
[Qemu-devel] [V2 PATCH 15/18] target-ppc: Add ISA 2.06 ftdiv Instruction, Tom Musta, 2013/12/11
[Qemu-devel] [V2 PATCH 16/18] target-ppc: Add ISA 2.06 ftsqrt, Tom Musta, 2013/12/11
[Qemu-devel] [V2 PATCH 17/18] target-ppc: Enable frsqrtes on Power7 and Power8, Tom Musta, 2013/12/11