diff options
Diffstat (limited to 'kernel/celltypes.h')
| -rw-r--r-- | kernel/celltypes.h | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/kernel/celltypes.h b/kernel/celltypes.h index ad5eae2e..8c2e9a48 100644 --- a/kernel/celltypes.h +++ b/kernel/celltypes.h @@ -131,9 +131,16 @@ struct CellTypes { setup_type("$_NOT_", {"\\A"}, {"\\Y"}, true); setup_type("$_AND_", {"\\A", "\\B"}, {"\\Y"}, true); + setup_type("$_NAND_", {"\\A", "\\B"}, {"\\Y"}, true); setup_type("$_OR_", {"\\A", "\\B"}, {"\\Y"}, true); + setup_type("$_NOR_", {"\\A", "\\B"}, {"\\Y"}, true); setup_type("$_XOR_", {"\\A", "\\B"}, {"\\Y"}, true); + setup_type("$_XNOR_", {"\\A", "\\B"}, {"\\Y"}, true); setup_type("$_MUX_", {"\\A", "\\B", "\\S"}, {"\\Y"}, true); + setup_type("$_AOI3_", {"\\A", "\\B", "\\C"}, {"\\Y"}, true); + setup_type("$_OAI3_", {"\\A", "\\B", "\\C"}, {"\\Y"}, true); + setup_type("$_AOI4_", {"\\A", "\\B", "\\C", "\\D"}, {"\\Y"}, true); + setup_type("$_OAI4_", {"\\A", "\\B", "\\C", "\\D"}, {"\\Y"}, true); } void setup_stdcells_mem() @@ -194,6 +201,14 @@ struct CellTypes return it != cell_types.end() && it->second.is_evaluable; } + static RTLIL::Const eval_not(RTLIL::Const v) + { + for (auto &bit : v.bits) + if (bit == RTLIL::S0) bit = RTLIL::S1; + else if (bit == RTLIL::S1) bit = RTLIL::S0; + return v; + } + static RTLIL::Const eval(RTLIL::IdString type, const RTLIL::Const &arg1, const RTLIL::Const &arg2, bool signed1, bool signed2, int result_len) { if (type == "$sshr" && !signed1) @@ -247,13 +262,19 @@ struct CellTypes #undef HANDLE_CELL_TYPE if (type == "$_NOT_") - return const_not(arg1, arg2, false, false, 1); + return eval_not(arg1); if (type == "$_AND_") return const_and(arg1, arg2, false, false, 1); + if (type == "$_NAND_") + return eval_not(const_and(arg1, arg2, false, false, 1)); if (type == "$_OR_") return const_or(arg1, arg2, false, false, 1); + if (type == "$_NOR_") + return eval_not(const_and(arg1, arg2, false, false, 1)); if (type == "$_XOR_") return const_xor(arg1, arg2, false, false, 1); + if (type == "$_XNOR_") + return const_xnor(arg1, arg2, false, false, 1); log_abort(); } @@ -280,21 +301,37 @@ struct CellTypes return eval(cell->type, arg1, arg2, signed_a, signed_b, result_len); } - static RTLIL::Const eval(RTLIL::Cell *cell, const RTLIL::Const &arg1, const RTLIL::Const &arg2, const RTLIL::Const &sel) + static RTLIL::Const eval(RTLIL::Cell *cell, const RTLIL::Const &arg1, const RTLIL::Const &arg2, const RTLIL::Const &arg3) { - if (cell->type == "$mux" || cell->type == "$pmux" || cell->type == "$_MUX_") { + if (cell->type.in("$mux", "$pmux", "$_MUX_")) { RTLIL::Const ret = arg1; - for (size_t i = 0; i < sel.bits.size(); i++) - if (sel.bits[i] == RTLIL::State::S1) { + for (size_t i = 0; i < arg3.bits.size(); i++) + if (arg3.bits[i] == RTLIL::State::S1) { std::vector<RTLIL::State> bits(arg2.bits.begin() + i*arg1.bits.size(), arg2.bits.begin() + (i+1)*arg1.bits.size()); ret = RTLIL::Const(bits); } return ret; } - log_assert(sel.bits.size() == 0); + if (cell->type == "$_AOI3_") + return eval_not(const_or(const_and(arg1, arg2, false, false, 1), arg3, false, false, 1)); + if (cell->type == "$_OAI3_") + return eval_not(const_and(const_or(arg1, arg2, false, false, 1), arg3, false, false, 1)); + + log_assert(arg3.bits.size() == 0); return eval(cell, arg1, arg2); } + + static RTLIL::Const eval(RTLIL::Cell *cell, const RTLIL::Const &arg1, const RTLIL::Const &arg2, const RTLIL::Const &arg3, const RTLIL::Const &arg4) + { + if (cell->type == "$_AOI4_") + return eval_not(const_or(const_and(arg1, arg2, false, false, 1), const_and(arg3, arg4, false, false, 1), false, false, 1)); + if (cell->type == "$_OAI4_") + return eval_not(const_and(const_or(arg1, arg2, false, false, 1), const_and(arg3, arg4, false, false, 1), false, false, 1)); + + log_assert(arg4.bits.size() == 0); + return eval(cell, arg1, arg2, arg3); + } }; #endif |