Talk:MOS Technology 6502

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Computing Mid‑importance

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This article is based on material taken from 6502 at the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later.

The Tamagotchi probably did not use a 6502

The Wikipedia page states that the Tamagotchi used a 6502 and links to someones blogpost claiming it uses a 6502 with no evidence. Many pages, such as http://tama.loociano.com/, claims the original Tamagotchi uses a CMOS E0C6S46, which is more likely given its specs with, among other things, a controller for a LCD. Bjanders (talk) 17:47, 15 December 2022 (UTC)[reply]

The original Tamagotchi (P1) used E0C6S46, but a later version ("Tama-Go"?) used a 6502-derived GPLB5X processor. [1] [2] Krótki (talk) 09:22, 23 December 2022 (UTC)[reply]

74158

"Peddle suggested that anyone that actually required this style of access could implement it with a single 74158." I don't see how that would work with just one, the 74158 is a quad 2-input mux, the bus is 16 bit. The source doesn't say "single" either, just "a". Someone with better knowledge of the topic, please fix Aecho6Ee (talk) 08:04, 12 November 2023 (UTC)[reply]

Yes it looks like you need four of them. More usual would be tristate buffers like the 74367, but the MUX are fine, too. Many of the early chips, and I didn't look up this one, could barely drive one TTL gate. Gah4 (talk) 21:05, 12 November 2023 (UTC)[reply]

Reset Pin 40

It seems that the Reset Pin in the pin configuration picture is wrong. It should be inverted. That means a Dash should be drawn over it, similar to the NMI and IRQ pin. WhyLee (talk) 09:19, 30 April 2025 (UTC)[reply]

@WhyLee: Thanks, you are correct. The problem needs to be fixed at commons:File:MOS6502.svg. The diagram appears in the article at MOS Technology 6502#Technical description. I would not be able to look at fixing a diagram for a month. Someone at WP:HELPDESK would be able to recommend how to ask someone to fix it. Johnuniq (talk) 10:07, 30 April 2025 (UTC)[reply]

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