Re: WDC's 32-bit W65T32

[aiiadict@gmail.com]

On Nov 2, 8:57 am, Mike Maginnis <magin...@computist-project.net>
wrote:
> Apparently, this is old news, but it looks like WDC's forthcoming
> 32-bit  chip is completely 6502/65816 compatible.  I don't know much
> about CPU architecture, so I don't know if this would matter to the A2
> community.  Would such a chip impact us at all with, say, the
> development of new peripherals, etc?

It's been rumored to be in development for over ten years, I think...

compatible with 6502...  ugh...  how do you get 32 bit's address with
only 16 address lines?  Some sort of scheme to put first 16bits on, ?
latch it?
in another chip, then get next 16 bits...  then an MMU would address
the appropriate RAM chip?

If it doesn't happen, how about modifying a 65816 VHDL or verilog
core?

would be cool to get it running, and code a C compiler that works with
32bits... we could port a ton of software to the II...  except for the
low
resolution of graphics and speed of CPU...

Rich