tokumaru wrote:
Memblers wrote:
UNROM could support 4 Mbytes of PRG, just by using an 8-bit latch instead of the 4-bit latch/counter Nintendo always used.
I considered doing that in case I ever need more space. I was planning on stealing the 4-bit counter of another cart though, and using the 2 of them.
Not a bad idea really, as the 8-bit latch (74HC374) I used on Squeedo was tricky to set up (it's clocked by a positive chip enable for 0x5000). That'd be annoying by itself, but it came free as the leftover pieces of a WRAM decoder circuit.
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I do have a few ideas which I plan to test really soon (I've been quite busy lately), and will release my results here (compressor in C, decompressor in 6502). Unless you need it right away, you should catch my release.
Awesome. It takes ages for me to finalize an ambitious project like this, so I'll be able to use it later, clear up some space for a few things at the end.
Also another point regarding compression, I've discovered that in Matrixz's NESnake 2, there is a really nice compressed music format but I've yet to test it out (the encoder uses Visual Basic, yet it's no-go with the free version of VB I downloaded from Microsoft, damn them). I'll figure it out though somehow. It actually uses NT2's NED/DAT format, reformatted and decompresses as it plays.
I totaled up the music data in NES Snake 2, and it's 22,398 bytes originally and 14,751 bytes after compression. Matrixz as well as Codemasters, are "Pure Genius!"