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Re: Adding user mode support to Arm HAL

>>>>> Pierre Habraken writes:

> Mark Salter wrote:
>> [...]
>> >          // now save pre-exception r0-r7 on current stack
>> >          ldmfd   r3,{r0-r5}
>> >          stmfd   sp!,{r0-r7}
>> ^^^^^^^^^^^^^^^^^^^
>> 
>> Is this really saving user mode r0-r7? Looks like its saving svc mode
>> regs.

> As far as I know, there is only one instance of each r0-r7,r15 shared by
> all Arm execution modes. Private ("banked") r8-r12 instances are
> provided in FIQ mode only. Private r13-r14 instances are provided in all
> non user modes.

You are correct. I was misremembering.

--Mark
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