mirror of https://github.com/YosysHQ/yosys.git
132 lines
3.7 KiB
Python
132 lines
3.7 KiB
Python
def modules():
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return ["python_inv"]
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def derive(module, parameters):
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assert module == r"python_inv"
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if parameters.keys() != {r"\width"}:
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raise ValueError("Invalid parameters")
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return "ilang", r"""
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module \impl
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wire width {width:d} input 1 \i
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wire width {width:d} output 2 \o
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cell $neg $0
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parameter \A_SIGNED 1'0
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parameter \A_WIDTH 32'{width:b}
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parameter \Y_WIDTH 32'{width:b}
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connect \A \i
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connect \Y \o
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end
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end
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module \python_inv
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wire width {width:d} input 1 \i
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wire width {width:d} output 2 \o
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cell \impl $0
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connect \i \i
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connect \o \o
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end
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end
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""".format(width=parameters[r"\width"])
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# ----------------------------------------------------------------------------
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import json
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import argparse
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import sys, socket, os, subprocess
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try:
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import msvcrt, win32pipe, win32file
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except ImportError:
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msvcrt = win32pipe = win32file = None
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def map_parameter(parameter):
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if parameter["type"] == "unsigned":
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return int(parameter["value"], 2)
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if parameter["type"] == "signed":
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width = len(parameter["value"])
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value = int(parameter["value"], 2)
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if value & (1 << (width - 1)):
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value = -((1 << width) - value)
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return value
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if parameter["type"] == "string":
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return parameter["value"]
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if parameter["type"] == "real":
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return float(parameter["value"])
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def call(input_json):
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input = json.loads(input_json)
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if input["method"] == "modules":
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return json.dumps({"modules": modules()})
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if input["method"] == "derive":
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try:
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frontend, source = derive(input["module"],
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{name: map_parameter(value) for name, value in input["parameters"].items()})
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return json.dumps({"frontend": frontend, "source": source})
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except ValueError as e:
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return json.dumps({"error": str(e)})
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def main():
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parser = argparse.ArgumentParser()
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modes = parser.add_subparsers(dest="mode")
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mode_stdio = modes.add_parser("stdio")
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if os.name == "posix":
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mode_path = modes.add_parser("unix-socket")
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if os.name == "nt":
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mode_path = modes.add_parser("named-pipe")
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mode_path.add_argument("path")
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args = parser.parse_args()
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if args.mode == "stdio":
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while True:
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input = sys.stdin.readline()
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if not input: break
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sys.stdout.write(call(input) + "\n")
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sys.stdout.flush()
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if args.mode == "unix-socket":
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.bind(args.path)
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try:
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ys_proc = subprocess.Popen(["../../yosys", "-ql", "unix.log", "-p", "connect_rpc -path {}; read_verilog design.v; hierarchy -top top; flatten; select -assert-count 1 t:$neg".format(args.path)])
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sock.listen(1)
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conn, addr = sock.accept()
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file = conn.makefile("rw")
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while True:
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input = file.readline()
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if not input: break
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file.write(call(input) + "\n")
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file.flush()
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ys_proc.wait(timeout=10)
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if ys_proc.returncode:
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raise subprocess.CalledProcessError(ys_proc.returncode, ys_proc.args)
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finally:
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ys_proc.kill()
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sock.close()
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os.unlink(args.path)
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if args.mode == "named-pipe":
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pipe = win32pipe.CreateNamedPipe(args.path, win32pipe.PIPE_ACCESS_DUPLEX,
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win32pipe.PIPE_TYPE_BYTE|win32pipe.PIPE_READMODE_BYTE|win32pipe.PIPE_WAIT,
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1, 4096, 4096, 0, None)
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win32pipe.ConnectNamedPipe(pipe, None)
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try:
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while True:
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input = b""
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while not input.endswith(b"\n"):
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result, data = win32file.ReadFile(pipe, 4096)
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assert result == 0
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input += data
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assert not b"\n" in input or input.endswith(b"\n")
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output = (call(input.decode("utf-8")) + "\n").encode("utf-8")
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length = len(output)
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while length > 0:
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result, done = win32file.WriteFile(pipe, output)
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assert result == 0
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length -= done
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except win32file.error as e:
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if e.args[0] == 109: # ERROR_BROKEN_PIPE
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pass
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else:
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raise
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if __name__ == "__main__":
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main()
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