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Old 25 December 2012, 02:09   #26
Leandro Jardim
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Join Date: Nov 2009
Location: Legoland
Age: 38
Posts: 1,152
One thing that I always wanted to know about the amazing 8-bit computers like the SAM Coupé, is how they got a 512x192 framebuffer on a 8-bit machine with 64kb, mapped into 4 x 16kb banks...

My guess is that the VRAM memory is accessed indirectly by memory mapped I/O registers. Because if it be mapped in a very big memory bank, will lack memory for standard RAM and a 4 MB expansion for the CPU.

But I am not sure is this is correct, someone have the correct answer for this doubt?

Last edited by Leandro Jardim; 25 December 2012 at 03:07.
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