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| author | Gabe Black <gblack@eecs.umich.edu> | 2011-09-26 23:48:54 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2011-09-26 23:48:54 -0700 |
| commit | 997cbe1c09f6ffff6bee11bb374e3a32601d0f06 (patch) | |
| tree | 64c6ed0b94a0f6becb47b04f4e4d0e5b2f9c59fc /src/arch/power/isa/formats/fp.isa | |
| parent | 56bddab18940e766bdfdeb98e0691a994859dcde (diff) | |
| download | gem5-997cbe1c09f6ffff6bee11bb374e3a32601d0f06.tar.xz | |
ISA parser: Use '_' instead of '.' to delimit type modifiers on operands.
By using an underscore, the "." is still available and can unambiguously be
used to refer to members of a structure if an operand is a structure, class,
etc. This change mostly just replaces the appropriate "."s with "_"s, but
there were also a few places where the ISA descriptions where handling the
extensions themselves and had their own regular expressions to update. The
regular expressions in the isa parser were updated as well. It also now
looks for one of the defined type extensions specifically after connecting "_"
where before it would look for any sequence of characters after a "."
following an operand name and try to use it as the extension. This helps to
disambiguate cases where a "_" may legitimately be part of an operand name but
not separate the name from the type suffix.
Because leaving the "_" and suffix on the variable name still leaves a valid
C++ identifier and all extensions need to be consistent in a given context, I
considered leaving them on as a breadcrumb that would show what the intended
type was for that operand. Unfortunately the operands can be referred to in
code templates, the Mem operand in particular, and since the exact type of Mem
can be different for different uses of the same template, that broke things.
Diffstat (limited to 'src/arch/power/isa/formats/fp.isa')
| -rw-r--r-- | src/arch/power/isa/formats/fp.isa | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/arch/power/isa/formats/fp.isa b/src/arch/power/isa/formats/fp.isa index db917476e..ef5a430b5 100644 --- a/src/arch/power/isa/formats/fp.isa +++ b/src/arch/power/isa/formats/fp.isa @@ -84,7 +84,7 @@ def format FloatRCCheckOp(code, inst_flags = []) {{ // Floating point elementary arithmetic operations. Besides having two // versions of each instruction for when Rc is set or not, we also have // to alter lots of special registers depending on the result of the -// operation. The result is always in Ft.sf. +// operation. The result is always in Ft_sf. def format FloatArithOp(code, inst_flags = []) {{ # Code when Rc is set @@ -109,7 +109,7 @@ def format FloatArithOp(code, inst_flags = []) {{ // Floating point rounding and conversion operations. Besides having two // versions of each instruction for when Rc is set or not, we also have // to alter lots of special registers depending on the result of the -// operation. The result is always in Ft.sf. +// operation. The result is always in Ft_sf. def format FloatConvertOp(code, inst_flags = []) {{ # Code when Rc is set |