Re: [Qemu-devel] [PATCH 1/3] arm: basic support for ARMv4/ARMv4T emulation

[Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>]

Hi,

On 4/10/11, Marek Vasut <marek.vasut@gmail.com> wrote:
> On Monday 04 April 2011 15:38:44 Dmitry Eremin-Solenikov wrote:
>> Currently target-arm/ assumes at least ARMv5 core. Add support for
>> handling also ARMv4/ARMv4T. This changes the following instructions:
>>
>> BX(v4T and later)
>>
>> BKPT, BLX, CDP2, CLZ, LDC2, LDRD, MCRR, MCRR2, MRRC, MCRR, MRC2, MRRC,
>> MRRC2, PLD QADD, QDADD, QDSUB, QSUB, STRD, SMLAxy, SMLALxy, SMLAWxy,
>> SMULxy, SMULWxy, STC2 (v5 and later)
>>
>> All instructions that are "v5TE and later" are also bound to just v5, as
>> that's how it was before.
>>
>> This patch doesn _not_ include disabling of cp15 access and base-updated
>> data abort model (that will be required to emulate chips based on a
>> ARM7TDMI), because:
>> * no ARM7TDMI chips are currently emulated (or planned)
>
> Hi,
>
> this will come handy as I plan to add support for certain arm7tdmi chip
> (forward
> port at91sam7 patchset)

Please be sure to check for the base-updated/base-restored part of the original
patch as I'm nearly sure that it will be required for your chips.

-- 
With best wishes
Dmitry