diff options
Diffstat (limited to 'backends/verilog')
| -rw-r--r-- | backends/verilog/verilog_backend.cc | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/backends/verilog/verilog_backend.cc b/backends/verilog/verilog_backend.cc index fe2c2b24..5826aea8 100644 --- a/backends/verilog/verilog_backend.cc +++ b/backends/verilog/verilog_backend.cc @@ -211,14 +211,23 @@ void dump_sigchunk(FILE *f, const RTLIL::SigChunk &chunk, bool no_decimal = fals if (chunk.wire == NULL) { dump_const(f, chunk.data, chunk.width, chunk.offset, no_decimal); } else { - if (chunk.width == chunk.wire->width && chunk.offset == 0) + if (chunk.width == chunk.wire->width && chunk.offset == 0) { fprintf(f, "%s", id(chunk.wire->name).c_str()); - else if (chunk.width == 1) - fprintf(f, "%s[%d]", id(chunk.wire->name).c_str(), chunk.offset + chunk.wire->start_offset); - else - fprintf(f, "%s[%d:%d]", id(chunk.wire->name).c_str(), - chunk.offset + chunk.wire->start_offset + chunk.width - 1, - chunk.offset + chunk.wire->start_offset); + } else if (chunk.width == 1) { + if (chunk.wire->upto) + fprintf(f, "%s[%d]", id(chunk.wire->name).c_str(), (chunk.wire->width - chunk.offset - 1) + chunk.wire->start_offset); + else + fprintf(f, "%s[%d]", id(chunk.wire->name).c_str(), chunk.offset + chunk.wire->start_offset); + } else { + if (chunk.wire->upto) + fprintf(f, "%s[%d:%d]", id(chunk.wire->name).c_str(), + (chunk.wire->width - (chunk.offset + chunk.width - 1) - 1) + chunk.wire->start_offset, + (chunk.wire->width - chunk.offset - 1) + chunk.wire->start_offset); + else + fprintf(f, "%s[%d:%d]", id(chunk.wire->name).c_str(), + (chunk.offset + chunk.width - 1) + chunk.wire->start_offset, + chunk.offset + chunk.wire->start_offset); + } } } @@ -267,8 +276,12 @@ void dump_wire(FILE *f, std::string indent, RTLIL::Wire *wire) #else // do not use Verilog-2k "outut reg" syntax in verilog export std::string range = ""; - if (wire->width != 1) - range = stringf(" [%d:%d]", wire->width - 1 + wire->start_offset, wire->start_offset); + if (wire->width != 1) { + if (wire->upto) + range = stringf(" [%d:%d]", wire->start_offset, wire->width - 1 + wire->start_offset); + else + range = stringf(" [%d:%d]", wire->width - 1 + wire->start_offset, wire->start_offset); + } if (wire->port_input && !wire->port_output) fprintf(f, "%s" "input%s %s;\n", indent.c_str(), range.c_str(), id(wire->name).c_str()); if (!wire->port_input && wire->port_output) |