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Re: [Qemu-devel] [PATCH v9 09/10] target-mips: Implement FCR31's R/W bit
From: |
Leon Alrae |
Subject: |
Re: [Qemu-devel] [PATCH v9 09/10] target-mips: Implement FCR31's R/W bitmask and related functionalities |
Date: |
Tue, 14 Jun 2016 15:08:24 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Jun 10, 2016 at 11:57:36AM +0200, Aleksandar Markovic wrote:
> From: Aleksandar Markovic <address@hidden>
>
> This patch implements read and write access rules for Mips floating
> point control and status register (FCR31). The change can be divided
> into following parts:
>
> - Add fields that will keep FCR31's R/W bitmask in procesor
> definitions and processor float_status structure.
>
> - Add appropriate value for FCR31's R/W bitmask for each supported
> processor.
>
> - Add function for setting snan_bit_is_one, and integrate it in
> appropriate places.
>
> - Modify handling of CTC1 (case 31) instruction to use FCR31's R/W
> bitmask.
>
> - Modify handling user mode executables for Mips, in relation to the
> bit EF_MIPS_NAN2008 from ELF header, that is in turn related to
> reading and writing to FCR31.
>
> - Modify gdb behavior in relation to FCR31.
>
> Signed-off-by: Thomas Schwinge <address@hidden>
> Signed-off-by: Maciej W. Rozycki <address@hidden>
> Signed-off-by: Aleksandar Markovic <address@hidden>
> ---
> linux-user/main.c | 14 ++++++++++++++
> target-mips/cpu.h | 8 ++++++++
> target-mips/gdbstub.c | 8 +++-----
> target-mips/op_helper.c | 14 +++-----------
> target-mips/translate.c | 5 ++---
> target-mips/translate_init.c | 26 ++++++++++++++++++++++++++
> 6 files changed, 56 insertions(+), 19 deletions(-)
Reviewed-by: Leon Alrae <address@hidden>
- Re: [Qemu-devel] [PATCH v9 01/10] softfloat: Implement run-time-configurable meaning of signaling NaN bit, (continued)
- [Qemu-devel] [PATCH v9 04/10] softfloat: For Mips only, correct order in pickNaNMulAdd(), Aleksandar Markovic, 2016/06/10
- [Qemu-devel] [PATCH v9 05/10] linux-user: Update preprocessor constants for Mips-specific e_flags bits, Aleksandar Markovic, 2016/06/10
- [Qemu-devel] [PATCH v9 06/10] target-mips: Activate IEEE 754-2008 signaling NaN bit meaning for MSA, Aleksandar Markovic, 2016/06/10
- [Qemu-devel] [PATCH v9 07/10] target-mips: Add abs2008 flavor of <ABS|NEG>.<S|D>, Aleksandar Markovic, 2016/06/10
- [Qemu-devel] [PATCH v9 08/10] target-mips: Add nan2008 flavor of <CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D>, Aleksandar Markovic, 2016/06/10
- [Qemu-devel] [PATCH v9 09/10] target-mips: Implement FCR31's R/W bitmask and related functionalities, Aleksandar Markovic, 2016/06/10
- Re: [Qemu-devel] [PATCH v9 09/10] target-mips: Implement FCR31's R/W bitmask and related functionalities,
Leon Alrae <=
- [Qemu-devel] [PATCH v9 10/10] target-mips: Add FCR31's FS bit definition, Aleksandar Markovic, 2016/06/10
- Re: [Qemu-devel] [PATCH v9 00/10] IEEE 754-2008 support for Mips, Aleksandar Markovic, 2016/06/21
- Re: [Qemu-devel] [PATCH v9 00/10] IEEE 754-2008 support for Mips, Peter Maydell, 2016/06/23