is it possible to rebuild old c64 hardware enhancements?

[Alexandre Souza]

> I've seriously contemplated making my own matching memory expansion module 
> for my VXL/30 A500 cpu accelerator.  Fairly complicated because I have to 
> create a DRAM controller.  Thinking FGPA w/ a pre-made memory controller 
> core.

    Something I could never understand: Why not using SRAM?

    We have tens of megabytes of SRAM today for cheap - useless pentium 
cache memory. And even SRAM chips, I have a 2MByte chip that costs almost 
nothing. Why all the hassle of using slow and refresh-dependent DRAM if SRAM 
is so easy to use?!