Questions tagged [spectrum-plus-2]

For questions about the Sinclair ZX Spectrum model released after Amstrad took over the company, which included a built-in compact cassette player in the case.

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Why did Amstrad choose such bank combinations for its all-RAM mode in +2A and +3 Spectrum computers?

The +2A and the +3 versions of the ZX Spectrum, made by Amstrad, had a new banking mode, called "special". This banking mode is entered by setting bit 0 of port 1FFD. When active, two bits from this ...