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RE: [PATCH 1/2] Add support for O32 FPXX ABI
- From: "Maciej W. Rozycki" <macro at codesourcery dot com>
- To: Matthew Fortune <Matthew dot Fortune at imgtec dot com>
- Cc: Richard Sandiford <rdsandiford at googlemail dot com>, "Joseph Myers (joseph at codesourcery dot com)" <joseph at codesourcery dot com>, "binutils at sourceware dot org" <binutils at sourceware dot org>, Rich Fuhler <Rich dot Fuhler at imgtec dot com>
- Date: Thu, 24 Apr 2014 21:21:12 +0100
- Subject: RE: [PATCH 1/2] Add support for O32 FPXX ABI
- Authentication-results: sourceware.org; auth=none
- References: <6D39441BF12EF246A7ABCE6654B023534DAAAB at LEMAIL01 dot le dot imgtec dot org> <878urd37t7 dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534DFD9B at LEMAIL01 dot le dot imgtec dot org> <87fvll1ha9 dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534E07CB at LEMAIL01 dot le dot imgtec dot org> <87k3awnuf1 dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534E0F50 at LEMAIL01 dot le dot imgtec dot org> <87ppknzv7m dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534E16D7 at LEMAIL01 dot le dot imgtec dot org> <877g6vzpj1 dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534E3030 at LEMAIL01 dot le dot imgtec dot org> <87eh0yl4xx dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534E3AA8 at LEMAIL01 dot le dot imgtec dot org> <87d2ghk7fu dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023535127C8 at LEMAIL01 dot le dot imgtec dot org> <87r44mve6s dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B02353512A10 at LEMAIL01 dot le dot imgtec dot org>
On Thu, 24 Apr 2014, Matthew Fortune wrote:
> > An enum is fine with me. The only other obvious value would be 128
> > (r5900/r7900), which would presumably be enum value 3, so we end up with
> > log2 - 4 anyway.
>
> I meant to ask you about your reference to r5900/r7900. Is this the 'Emotion
> Engine'? I've never seen the documentation for this but I see the references
> in mips-opc.c about VU0 macromode instructions.
Sony used the R5900 processor in PS2. Here's a reference to
documentation: http://sourceware.org/ml/binutils/2013-01/msg00187.html --
not readily available, but you might be able to ask Sony.
The other processor is actually the TX79 by Toshiba.
Maciej