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Re: [openrisc] System Architecture Manual errors and omissions
Hi Lee,
thanks for your corrections.
Marko, we need to do something about documentation and get it into shape real fast real soon. ;-)
In case you are starting to port Linux, this is great news. You might want to have a look at Simon's uClinux port (does work on actual HW!). Also Matan (matan@svgalib.org) is working on Linux port, you might want to talk to him as well, so that we don't get two Linux ports. ;-)
About your post from 18hours ago, was it the same message as thos one? If you sent it before this one, it should arrive to the list before this one. Weird.
regards,
Damjan
On 23 Mar 2002 06:50 CET you wrote:
> Just a few little points I have noticed so far in the System Architecture
> Manual.
>
> Section 8.3 (Instruction Set: ORBIS32/64) does not contain the l.mtspr
> instruction referred to in many places. Also in 8.3, the l.trap instruction
> is in the wrong place to be in alphabetical order.
>
> Section 19.6 (Application Binary Interface: COFF) has nothing in it. (not
> that it is of any interest to me ;-)
>
> Section 16.2 (Programmable Interrupt Controller: PIC Mask Register) and 16.3
> (PIC Priority Register) the constant that describes all interrupts enabled
> and all interrupts are high priority are wrong. The tables immediately above
> them suggests that 0xFFFFFFFC is the correct one (assuming the reserved bits
> are 0. IMHO they should both be fixed 1b in PICMR and in PICPR to be 01b, as
> they are always enabled and have the priorities fixed low and high for
> interrupt 1 and 0 respectfully).
>
>
> I thought I saw some more and I will post them when I find them. I do notice
> that the date on it is 28 May 2001 so there might be some changes that
> haven't made it to the CVS yet.
>
> It looks to be a good reference, I'm sure I will refer to it often in porting
> Linux, starting on Friday.
>
> Later
> Lee Begg
>
> PS: I haven't seen my previous message come through yet, but I sent it about
> 18 hours ago.
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