
        +--------------------------+
        | NES Name Table Encrypter |
        +--------------------------+
        by SnowBro <kentmhan@online.no>

        Just a useful li'l program for compressing the data
        generated by NSA. It uses .PCX style compression and
        therefore works particularly well on screens which have
        a lot of repeated tiles ("Kid Icarus" title screen is
        crunched down to 45% of uncompressed size, for example).

        The output is stored as XXXXX.CMP, where XXXXX is the name
        of the .NAM file. The format is as follows:

        0000h-0001h: 16-bit value containing number of compressed items.
                     This is used by the 6502 routine which decompresses
                     the data, to determine when all data has been
                     decompressed.
        0002h-EOF:   Compressed data.   
                     Decompress like this:

                     First, read a byte. If the upper three bits are set,
                     the lower five bits contain the number of times to
                     repeat the NEXT byte. Otherwise, the byte is the
                     data itself.

        The file "NTDEC.ASM" contains a routine in 6502 ASM which
        decompresses the data and writes it directly to one of the
        Name Tables in NES PPU memory. It's easy to use, you just
        supply it with a pointer to the compressed data and the
        Name Table # to write it to. See "NTDEC.ASM" itself for
        more information.
