Tomas Hajny wrote:
On Wed, October 17, 2012 16:25, Pierre Free Pascal wrote:
You are right:
muller@deluxe:~/pas/test$ ppcsparc hello
muller@deluxe:~/pas/test$ ppcsparc hello -CpXX
Error: Illegal parameter: -CpXX
muller@deluxe:~/pas/test$ ppcsparc hello -Cp"sparc v7"
muller@deluxe:~/pas/test$ ppcsparc hello -Cp"sparc v8"
muller@deluxe:~/pas/test$ ppcsparc hello -Cp"sparc v9"
muller@deluxe:~/pas/test$ ppcsparc hello -Cp"sparc v19"
Error: Illegal parameter: -Cpsparc v19
But I didn't find any use of cputype current_settings field
in compiler/sparc directory sources,
so the generated result should not change...
If the field/value isn't used yet, wouldn't it make sense to change the
texts so that they use an underscore instead of space? I believe that it
makes life easier for everyone and helps to avoid similar questions in the
future. It seems that GCC uses just v7/v8/v9 (without "SPARC") so that the
space doesn't seem to come from an attempt for alignment with GCC or
something like that.
Or at least accepting just v8/v9 where there is no ambiguity. I note
that some FPU designations already have underscores.
Regarding Marks attempt - if I understand it correctly (based on
information in Wikipedia ;-) ), Sparc v7 supports no HW multiplication /
division. So a simple check may be to write a one liner containing
multiplication, compiling it with any ppcsparc (or ppccrosssparc) while
using the -s parameter and then checking the generated assembly for use of
the mul/div asm instructions...
I'll take a look. However I stress that I've got absolutely nothing
invested in SPARC v7 (AKA sun4c) and only marginal interest in Solaris
7, so allowing that even the LEON processor supports v8 (as do sun4m and
sun4d) I think v7 could be quietly dropped.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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