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hap #121780 12/27/22 08:28 PM
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Originally Posted by hap
Scrambled how? Address pins?
If it's an opening book library, then you wouldn't expect opcodes in there.
The cartridge label claims it’s a Chinese-English dictionary.

edit: going by the somewhat tautological “英漢字典 DICTIONARY” on the top line, and the “英漢・漢英・百科字典” at the bottom, it should be an encyclopædic dictionary that can be searched for Chinese or English terms.

Last edited by Vas Crabb; 12/27/22 08:38 PM.
sCZther #121781 12/27/22 08:49 PM
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yeah, it's an actual dictionary, it's a 2 MB ROM, so must be banked, and there seems to be a data swap at least (since it had to be reverse engineered it's possibly just a wiring error though)

it might just be a D3/D4 line swap

I'd assumed it was a chess dictionary, but no.

sCZther #121782 12/27/22 09:37 PM
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Ah, I see a photo of the cart dump on Furrtek's twitter:
https://twitter.com/furrtek/status/1604596202649124865

Yup, it's possible a line got accidentally swapped here.

Schematic is the one from here?
https://twitter.com/furrtek/status/1604624707046805505
It confirms that sound is 1 bit, and the other line could be the on/off bit. Volume knob indeed comes after digitally controlled bits.

sCZther #121783 12/27/22 11:05 PM
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cart sort of works

[Linked Image from i.postimg.cc]

[Linked Image from i.postimg.cc]

[Linked Image from i.postimg.cc]

sCZther #121784 12/28/22 01:00 AM
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dictionary

1 member likes this: Revenant
sCZther #121785 12/28/22 01:11 AM
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Is the melody at the beginning supposed to sound like that? It sounds like it's meant to be the traditional alphabet song (i.e. Twinkle Twinkle Little Star) but playing with the pitch inverted or something.

Last edited by Revenant; 12/28/22 01:12 AM.
sCZther #121786 12/28/22 01:31 AM
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m_beeper->set_clock(((0xff00 ^ m_beeper_freq) + 1) * step);
instead of
m_beeper->set_clock(((0xffff ^ m_beeper_freq) + 1) * step);

does sound more like the traditional alphabet song, but still rather off.. I'm honestly not sure (it makes 'chess' and 'reversi' sound significantly worse)

sCZther #121787 12/28/22 03:31 AM
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Given this is a dodgy Chinese handheld, I wouldn't guarantee the original is in tune either unless someone has video of the hardware.

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Originally Posted by R. Belmont
Given this is a dodgy Chinese handheld, I wouldn't guarantee the original is in tune either unless someone has video of the hardware.
The unit itself seems pretty decent for the time in terms of the specs and game AI, and the Chinese translations of English terms seem OK, but the English translations for Chinese terms are rather awkward. Definitely seems to be intended for Taiwan – traditional Chinese script, not Hong Kong Cantonese.

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