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Re: [Qemu-devel] [PATCH] target/arm: Allow ARMv6-M Thumb2 instructions
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] target/arm: Allow ARMv6-M Thumb2 instructions |
Date: |
Wed, 13 Jun 2018 15:05:05 +0100 |
User-agent: |
Mutt/1.9.5 (2018-04-13) |
On Tue, Jun 12, 2018 at 11:46:32PM +0300, Julia Suvorova wrote:
> ARMv6-M supports 6 Thumb2 instructions. This patch checks for these
> instructions and allows their execution.
> Like Thumb2 cores, ARMv6-M always interprets BL instruction as 32-bit.
>
> This patch is required for future Cortex-M0 support.
>
> Signed-off-by: Julia Suvorova <address@hidden>
> ---
> target/arm/translate.c | 35 ++++++++++++++++++++++++++++++-----
> 1 file changed, 30 insertions(+), 5 deletions(-)
Does make the undefined instruction test case that I recently posted
pass (including all commented out instructions that weren't working
yet)?
Reviewed-by: Stefan Hajnoczi <address@hidden>
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Re: [Qemu-devel] [PATCH] target/arm: Allow ARMv6-M Thumb2 instructions, Peter Maydell, 2018/06/15