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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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