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author | Johann Klammer <klammerj@a1.net> | 2017-02-23 19:42:37 +0100 |
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committer | Johann Klammer <klammerj@a1.net> | 2017-02-23 19:42:37 +0100 |
commit | 06df86aae3618cd957a0538693bfabb01487b23d (patch) | |
tree | 76c460074e282c3a9f4176db6dbf6c6b499a8d69 /backends/edif/edif.cc | |
parent | 00dba4c197b7e3b6c1d1f7b90ae7b1e6172b1e5f (diff) | |
download | yosys-06df86aae3618cd957a0538693bfabb01487b23d.tar.gz yosys-06df86aae3618cd957a0538693bfabb01487b23d.tar.bz2 yosys-06df86aae3618cd957a0538693bfabb01487b23d.zip |
add options for edif flavors
*to force renames on wide ports
*to choose array delimiters
*to choose up or downwards indices
Diffstat (limited to 'backends/edif/edif.cc')
-rw-r--r-- | backends/edif/edif.cc | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/backends/edif/edif.cc b/backends/edif/edif.cc index 6414bc6e5..7e6cfd5b7 100644 --- a/backends/edif/edif.cc +++ b/backends/edif/edif.cc @@ -31,8 +31,12 @@ USING_YOSYS_NAMESPACE PRIVATE_NAMESPACE_BEGIN #define EDIF_DEF(_id) edif_names(RTLIL::unescape_id(_id), true).c_str() +#define EDIF_DEFR(_id, _ren, _del, _bd) edif_names(RTLIL::unescape_id(_id), true, _ren, _del, _bd).c_str() #define EDIF_REF(_id) edif_names(RTLIL::unescape_id(_id), false).c_str() +static char const edf_defdel[2] = {'[',']'}; +static int const edf_defbd[2] = {0,1}; + namespace { struct EdifNames @@ -43,10 +47,12 @@ namespace EdifNames() : counter(1) { } - std::string operator()(std::string id, bool define) + std::string operator()(std::string id, bool define, bool always_rename = false, char const delim[2] = edf_defdel, int const bounds[2] = edf_defbd) { if (define) { std::string new_id = operator()(id, false); + if (always_rename) + return stringf("(rename %s \"%s%c%d:%d%c\")", new_id.c_str(), id.c_str(), delim[0], bounds[0], bounds[1], delim[1]); return new_id != id ? stringf("(rename %s \"%s\")", new_id.c_str(), id.c_str()) : id; } @@ -105,6 +111,25 @@ struct EdifBackend : public Backend { log(" if the design contains constant nets. use \"hilomap\" to map to custom\n"); log(" constant drivers first)\n"); log("\n"); + log(" -pidx {up|down}\n"); + log(" adds rename clauses to all module ports to line up signal and member indices.\n"); + log(" if it is up, a 24 bit port will be renamed as follows:\n"); + log(" (rename mcu_addr \"mcu_addr[0:23]\")\n"); + log(" if it is down, it will be:\n"); + log(" (rename mcu_addr \"mcu_addr[23:0]\")\n"); + log("\n"); + log(" -parray {par|bra|ang}\n"); + log(" sets the delimiting character for module port rename clauses.\n"); + log(" if it is par, The example from above will be:\n"); + log(" (rename mcu_addr \"mcu_addr(0:23)\")\n"); + log(" if it is ang, The example from above will be:\n"); + log(" (rename mcu_addr \"mcu_addr<0:23>\")\n"); + log(" otherwise:\n"); + log(" (rename mcu_addr \"mcu_addr[0:23]\")\n"); + log("\n"); + log(" If neither -parray nor -pidx are given, there will be no port rename clauses."); + log(" If only one is given, -parray will default to bra and -pidx to up."); + log("\n"); log("Unfortunately there are different \"flavors\" of the EDIF file format. This\n"); log("command generates EDIF files for the Xilinx place&route tools. It might be\n"); log("necessary to make small modifications to this command when a different tool\n"); @@ -114,8 +139,10 @@ struct EdifBackend : public Backend { virtual void execute(std::ostream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design) { log_header(design, "Executing EDIF backend.\n"); - std::string top_module_name; + bool always_rename = false; + char delim[2] = {'[',']'}; + int bounds[2] = {0,1}; std::map<RTLIL::IdString, std::map<RTLIL::IdString, int>> lib_cell_ports; bool nogndvcc = false; CellTypes ct(design); @@ -132,6 +159,29 @@ struct EdifBackend : public Backend { nogndvcc = true; continue; } + if (args[argidx] == "-pidx" && argidx+1 < args.size()) { + always_rename = true; + if(args[++argidx] == "down") { + bounds[0]=1;bounds[1]=0; + } + else { + bounds[0]=0;bounds[1]=1; + } + continue; + } + if (args[argidx] == "-parray" && argidx+1 < args.size()) { + std::string parray; + always_rename = true; + parray = args[++argidx]; + if (parray == "par") { + delim[0] = '(';delim[1] = ')'; + } else if (parray == "ang") { + delim[0] = '<';delim[1] = '>'; + } else { + delim[0] = '[';delim[1] = ']'; + } + continue; + } break; } extra_args(f, filename, args, argidx); @@ -215,7 +265,11 @@ struct EdifBackend : public Backend { if (port_it.second == 1) *f << stringf(" (port %s (direction %s))\n", EDIF_DEF(port_it.first), dir); else - *f << stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEF(port_it.first), port_it.second, dir); + { + int bd[2]={0,port_it.second-1}; + int b[2]={bd[bounds[0]],bd[bounds[1]]}; + *f << stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEFR(port_it.first, always_rename, delim, b), port_it.second, dir); + } } *f << stringf(" )\n"); *f << stringf(" )\n"); @@ -283,7 +337,9 @@ struct EdifBackend : public Backend { RTLIL::SigSpec sig = sigmap(RTLIL::SigSpec(wire)); net_join_db[sig].insert(stringf("(portRef %s)", EDIF_REF(wire->name))); } else { - *f << stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEF(wire->name), wire->width, dir); + int bd[2]={0,wire->width-1}; + int b[2]={bd[bounds[0]],bd[bounds[1]]}; + *f << stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEFR(wire->name, always_rename, delim, b), wire->width, dir); for (int i = 0; i < wire->width; i++) { RTLIL::SigSpec sig = sigmap(RTLIL::SigSpec(wire, i)); net_join_db[sig].insert(stringf("(portRef (member %s %d))", EDIF_REF(wire->name), i)); |