On 17 December 2013 04:45, Christoffer Dall <christoffer.dall@xxxxxxxxxx> wrote:
> I think this could be written slightly more clearly for the uninitiated,
> but maybe I'm just not qemu-savy enough.
It was a bit compressed; I've reworded it to:
/* PSTATE isn't an architectural register for ARMv8. However, it is
* convenient for us to assemble the underlying state into a 32 bit format
* identical to the architectural format used for the SPSR. (This is also
* what the Linux kernel's 'pstate' field in signal handlers and KVM's
* 'pstate' register are.) Of the PSTATE bits:
* NZCV are kept in the split out env->CF/VF/NF/ZF, (which have the same
* semantics as for AArch32, as described in the comments on each field)
* nRW (also known as M[4]) is kept, inverted, in env->aarch64
* all other bits are stored in their correct places in env->pstate
*/
thanks
-- PMM
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