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https://github.com/YosysHQ/yosys
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100 lines
2.9 KiB
Python
100 lines
2.9 KiB
Python
#!/usr/bin/env python3
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from __future__ import annotations
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import fileinput
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import json
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from pathlib import Path
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class SimHelper:
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name: str = ""
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title: str = ""
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ports: str = ""
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source: str = ""
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desc: list[str]
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code: list[str]
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group: str = ""
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ver: str = "1"
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tags: list[str]
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def __init__(self) -> None:
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self.desc = []
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self.tags = []
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def __str__(self) -> str:
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printed_fields = [
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"name", "title", "ports", "source", "desc", "code", "group", "ver",
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"tags",
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]
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# generate C++ struct
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val = f"cell_help[{json.dumps(self.name)}] = "
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val += "{\n"
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for field in printed_fields:
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field_val = getattr(self, field)
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if isinstance(field_val, list):
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field_val = "\n".join(field_val)
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field_val = field_val.strip()
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val += f' {json.dumps(field_val)},\n'
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val += "};\n"
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return val
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def simcells_reparse(cell: SimHelper):
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# cut manual signature
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cell.desc = cell.desc[3:]
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# code-block truth table
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new_desc = []
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indent = ""
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for line in cell.desc:
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if line.startswith("Truth table:"):
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indent = " "
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new_desc.pop()
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new_desc.extend(["::", ""])
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new_desc.append(indent + line)
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cell.desc = new_desc
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# set version
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cell.ver = "2a"
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simHelper = SimHelper()
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for line in fileinput.input():
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line = line.rstrip()
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# special comments
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if line.startswith("//-"):
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simHelper.desc.append(line[4:] if len(line) > 4 else "")
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elif line.startswith("//* "):
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_, key, val = line.split(maxsplit=2)
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setattr(simHelper, key, val)
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# code parsing
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if line.startswith("module "):
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clean_line = line[7:].replace("\\", "").replace(";", "")
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simHelper.name, simHelper.ports = clean_line.split(maxsplit=1)
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simHelper.code = []
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short_filename = Path(fileinput.filename()).name
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simHelper.source = f'{short_filename}:{fileinput.filelineno()}'
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elif not line.startswith("endmodule"):
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line = " " + line
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try:
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simHelper.code.append(line.replace("\t", " "))
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except AttributeError:
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# no module definition, ignore line
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pass
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if line.startswith("endmodule"):
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short_filename = Path(fileinput.filename()).name
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if simHelper.ver == "1" and short_filename == "simcells.v":
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# default simcells parsing
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simcells_reparse(simHelper)
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# check help
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if simHelper.desc and simHelper.ver == "1" and short_filename == "simlib.v" and simHelper.desc[1].startswith(' '):
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simHelper.desc.pop(1)
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# check group
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assert simHelper.group, f"techlibs/common/{simHelper.source}: {simHelper.name} cell missing group"
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# dump
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print(simHelper)
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# new
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simHelper = SimHelper()
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