On Fri, 23 Mar 2007 11:21:57 +0000 Gavin Maltby <[EMAIL PROTECTED]> wrote:
> Hi, > > On 03/23/07 02:00, [EMAIL PROTECTED] wrote: > > Hi, in the UltraSPARC III user's manual, section 7.11 on page 175 describes > > instruction formats. On page 176 the last two instructions are exactly the > > same, i.e. > > > > ---------------------------------------- > > |op| fcn | op3 | --- | > > ---------------------------------------- > > > > ---------------------------------------- > > |op| fcn | op3 | --- | > > ---------------------------------------- > > > > Is this a mistake or there is a reason for two identical diagrams for the > > same instruction format?? > > Can you give a documentation part number and revision. In the documentation > I'm looking at the only encodings that match the above are: > > ---------------------------------------- > |op | fcn | op3 | --- | > ---------------------------------------- > 31 30 29 25 24 19 18 0 > ---------------------------------------- > |op | rd | op3 | --- | > ---------------------------------------- > > ie in the second there is an 'rd'. > > I'm referring to some internal documentation for the particular > sparc v9 implementations of UltraSPARC-III and other processors; > it's based on the SPARC Arch Manual v9, and typically includes > all the fixed errata from that (You can download the errata from > sparc.org I think). > > Gavin http://www.sun.com/processors/manuals/USIIIv2.pdf Go to section 7.11 page 176, in figure 7-2 the last two instruction formats are exactly the same. I'd like to know if they have been duplicated by a mistake or if there is a specific reason for duplicate instruction formats, or maybe the last instruction is supposed to be |op|rd|op3|---| but instead of rd field it has fcn?? _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
