#!/usr/bin/env python3
# flashimg/cpu_hdmi/tmds_decode_table.h.gen - Generate a table for TMDS decoding
#
# Copyright (C) 2025  Luke T. Shumaker <lukeshu@lukeshu.com>
# SPDX-License-Identifier: AGPL-3.0-or-later

import sys

print(f"// Generated by `{' '.join(sys.argv)}`.  DO NOT EDIT!")
for enc in range(1 << 10):
    D = [bool((enc >> (9 - i)) & 1) for i in range(10)]
    # Algorithm from DVI 1.0 Figure 3-6
    if D[9]:
        for i in range(8):
            D[i] = not D[i]
    if D[8]:
        Q = [
            D[0],
            D[1] != D[0],
            D[2] != D[1],
            D[3] != D[2],
            D[4] != D[3],
            D[5] != D[4],
            D[6] != D[5],
            D[7] != D[6],
        ]
    else:
        Q = [
            D[0],
            D[1] == D[0],
            D[2] == D[1],
            D[3] == D[2],
            D[4] == D[3],
            D[5] == D[4],
            D[6] == D[5],
            D[7] == D[6],
        ]
    s = "".join("1" if b else "0" for b in Q)
    print(f"X(0b{s})")