Posted By
Gaia
on 2009-11-24
12:29:48
|  Re: Just to chat: what is, in your opinion, the greater lack of Plus4? (if any...)
Yeah, the BASIC. It was slow because it does memory banking on each read operation that involves the "disable IRQ/disable ROM/read byte/enable ROM/enable IRQ" sequence... you did not need this on the C64, so even though the machine itself is slightlys faster, the BASIC is much slower.
And this memory banking was a last-minute change in my opinion when they figured that the machine MUST handle 64kb, too. An ideal compromise would have been to have the C232 only which had ~28kb free RAM available for BASIC and would not have required memory banking on its own. 32 kb would have been sufficient for decent games, too (just think of Treasure Island and Icicle Works, both fit into 32kb).
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