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Avoid parameter values with size 0 ($mem cells)

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This commit is contained in:
Clifford Wolf 2015-04-05 18:04:19 +02:00
parent 95944eb69e
commit a1c62b79d5
3 changed files with 16 additions and 11 deletions
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7
passes/memory/memory_map.cc
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@ -81,6 +81,9 @@ struct MemoryMapWorker
std::set<int> static_ports;
std::map<int, RTLIL::SigSpec> static_cells_map;
int wr_ports = cell->parameters["\\WR_PORTS"].as_int();
int rd_ports = cell->parameters["\\RD_PORTS"].as_int();
int mem_size = cell->parameters["\\SIZE"].as_int();
int mem_width = cell->parameters["\\WIDTH"].as_int();
int mem_offset = cell->parameters["\\OFFSET"].as_int();
@ -90,7 +93,7 @@ struct MemoryMapWorker
init_data.extend_u0(mem_size*mem_width, true);
// delete unused memory cell
if (cell->parameters["\\RD_PORTS"].as_int() == 0 && cell->parameters["\\WR_PORTS"].as_int() == 0) {
if (wr_ports == 0 && rd_ports == 0) {
module->remove(cell);
return;
}
@ -99,6 +102,8 @@ struct MemoryMapWorker
RTLIL::SigSpec clocks = cell->getPort("\\WR_CLK");
RTLIL::Const clocks_pol = cell->parameters["\\WR_CLK_POLARITY"];
RTLIL::Const clocks_en = cell->parameters["\\WR_CLK_ENABLE"];
clocks_pol.bits.resize(wr_ports);
clocks_en.bits.resize(wr_ports);
RTLIL::SigSpec refclock;
RTLIL::State refclock_pol = RTLIL::State::Sx;
for (int i = 0; i < clocks.size(); i++) {