mirror of
https://github.com/riscv/riscv-opcodes.git
synced 2025-05-08 19:06:58 +08:00
87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
import logging
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import pprint
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from constants import *
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# from shared_utils import overlaps, overlap_allowed, extension_overlap_allowed, instruction_overlap_allowed, process_enc_line, same_base_isa, add_segmented_vls_insn, expand_nf_field
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from shared_utils import *
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pp = pprint.PrettyPrinter(indent=2)
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logging.basicConfig(level=logging.INFO, format="%(levelname)s:: %(message)s")
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def make_chisel(instr_dict, spinal_hdl=False):
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chisel_names = ""
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cause_names_str = ""
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csr_names_str = ""
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for i in instr_dict:
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if spinal_hdl:
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chisel_names += f' def {i.upper().replace(".","_"):<18s} = M"b{instr_dict[i]["encoding"].replace("-","-")}"\n'
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# else:
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# chisel_names += f' def {i.upper().replace(".","_"):<18s} = BitPat("b{instr_dict[i]["encoding"].replace("-","?")}")\n'
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if not spinal_hdl:
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extensions = instr_dict_2_extensions(instr_dict)
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for e in extensions:
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e_instrs = filter(lambda i: instr_dict[i]["extension"][0] == e, instr_dict)
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if "rv64_" in e:
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e_format = e.replace("rv64_", "").upper() + "64"
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elif "rv32_" in e:
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e_format = e.replace("rv32_", "").upper() + "32"
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elif "rv_" in e:
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e_format = e.replace("rv_", "").upper()
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else:
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e_format = e.upper
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chisel_names += f' val {e_format+"Type"} = Map(\n'
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for instr in e_instrs:
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tmp_instr_name = '"' + instr.upper().replace(".", "_") + '"'
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chisel_names += f' {tmp_instr_name:<18s} -> BitPat("b{instr_dict[instr]["encoding"].replace("-","?")}"),\n'
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chisel_names += f" )\n"
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for num, name in causes:
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cause_names_str += f' val {name.lower().replace(" ","_")} = {hex(num)}\n'
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cause_names_str += """ val all = {
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val res = collection.mutable.ArrayBuffer[Int]()
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"""
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for num, name in causes:
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cause_names_str += f' res += {name.lower().replace(" ","_")}\n'
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cause_names_str += """ res.toArray
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}"""
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for num, name in csrs + csrs32:
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csr_names_str += f" val {name} = {hex(num)}\n"
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csr_names_str += """ val all = {
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val res = collection.mutable.ArrayBuffer[Int]()
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"""
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for num, name in csrs:
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csr_names_str += f""" res += {name}\n"""
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csr_names_str += """ res.toArray
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}
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val all32 = {
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val res = collection.mutable.ArrayBuffer(all:_*)
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"""
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for num, name in csrs32:
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csr_names_str += f""" res += {name}\n"""
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csr_names_str += """ res.toArray
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}"""
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if spinal_hdl:
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chisel_file = open("inst.spinalhdl", "w")
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else:
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chisel_file = open("inst.chisel", "w")
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chisel_file.write(
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f"""
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/* Automatically generated by parse_opcodes */
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object Instructions {{
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{chisel_names}
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}}
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object Causes {{
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{cause_names_str}
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}}
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object CSRs {{
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{csr_names_str}
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}}
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"""
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)
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chisel_file.close()
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