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gregf |
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Ramtek's Trivia promoter
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Reged: 09/21/03
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Posts: 8604
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Loc: southern CA, US
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Re: Bonze Adventure proto
08/17/14 07:14 PM
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>IIRC the c-chip is (based on notes from dr decap from years ago) a custom Toshiba (or >nec?) chip with (i think) a upd78c10 (or more likely z80) cpu, a mask rom inside
>(bootloader/write code for the eprom?), an otp-eprom which holds the game specific code,
>as well as an sram of unknown size which is i think at least partially optionally
>battery backed (using an external pin to the chip connected to an optional battery to
>hold high scores).
>Dumping the mask rom visually is doable, but getting the eprom part dumped is going to
>be a big mess.
I wonder if Charles can devise a way to deal with that. I was impressed with Charles past work with Gaelco Master Boy pcb which was considered not possible until Charles spotted a way of extracting data from the mcu.
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Bonze Adventure proto
