table = (
    ("prefix", (32, (
        ("insn", range(32)),
        ("major", range(0, 6)),
        ("pid", [7, 9]),
        ("rm", ([6, 8] + list(range(10, 32)))),
    ))),
    ("rm", (24, (
        ("mmode", [0]),
        ("mask", range(1, 4)),
        ("elwidth", range(4, 6)),
        ("ewsrc", range(6, 8)),
        ("subvl", range(8, 10)),
        ("extra", range(10, 19)),
        ("mode", range(19, 24)),
        ("extra2_0", range(10, 12)),
        ("extra2_1", range(12, 14)),
        ("extra2_2", range(14, 16)),
        ("extra2_3", range(16, 18)),
        ("smask", range(16, 19)),
        ("extra3_0", range(10, 13)),
        ("extra3_1", range(13, 16)),
        ("extra3_2", range(16, 19)),
    ))),
)

for (tag, (size, fields)) in table:
    print(f"struct svp64_{tag} {{")
    print(f"    uint32_t storage : {size};")
    print(f"}};")
    print(f"")
    print(f"enum svp64_{tag}_field {{")
    for (field, _) in fields:
        name = f"svp64_{tag}_{field}".upper()
        print(f"    {name},".upper())
    print(f"}};")
    print("")
    print(f"static const struct svp64_field svp64_{tag}_fields[] = {{")
    for (field, mapping) in fields:
        name = f"svp64_{tag}_{field}".upper()
        mapping = tuple(map(lambda bit: str((size - 1) - bit), reversed(tuple(mapping))))
        print(f"    [{name}] = {{{len(mapping)}, {{{', '.join(mapping)}}}}},")
    print(f"}};")
    print(f"")