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Added $bu0 cell (for easy correct $eq/$ne mapping)

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This commit is contained in:
Clifford Wolf 2013-12-28 11:54:40 +01:00
parent 7f71787599
commit c69c416d28
6 changed files with 35 additions and 5 deletions
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8
kernel/calc.cc
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@ -543,6 +543,14 @@ RTLIL::Const RTLIL::const_pos(const RTLIL::Const &arg1, const RTLIL::Const&, boo
return arg1_ext;
}
RTLIL::Const RTLIL::const_bu0(const RTLIL::Const &arg1, const RTLIL::Const&, bool signed1, bool, int result_len)
{
RTLIL::Const arg1_ext = arg1;
extend_u0(arg1_ext, result_len, signed1);
return arg1_ext;
}
RTLIL::Const RTLIL::const_neg(const RTLIL::Const &arg1, const RTLIL::Const&, bool signed1, bool, int result_len)
{
RTLIL::Const arg1_ext = arg1;

2
kernel/celltypes.h
View file

@ -60,6 +60,7 @@ struct CellTypes
{
cell_types.insert("$not");
cell_types.insert("$pos");
cell_types.insert("$bu0");
cell_types.insert("$neg");
cell_types.insert("$and");
cell_types.insert("$or");
@ -250,6 +251,7 @@ struct CellTypes
HANDLE_CELL_TYPE(mod)
HANDLE_CELL_TYPE(pow)
HANDLE_CELL_TYPE(pos)
HANDLE_CELL_TYPE(bu0)
HANDLE_CELL_TYPE(neg)
#undef HANDLE_CELL_TYPE

2
kernel/rtlil.cc
View file

@ -370,7 +370,7 @@ namespace {
void check()
{
if (cell->type == "$not" || cell->type == "$pos" || cell->type == "$neg") {
if (cell->type == "$not" || cell->type == "$pos" || cell->type == "$bu0" || cell->type == "$neg") {
param("\\A_SIGNED");
port("\\A", param("\\A_WIDTH"));
port("\\Y", param("\\Y_WIDTH"));

1
kernel/rtlil.h
View file

@ -187,6 +187,7 @@ namespace RTLIL
RTLIL::Const const_pow (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
RTLIL::Const const_pos (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
RTLIL::Const const_bu0 (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
RTLIL::Const const_neg (const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len);
};