Some time ago I posted a die shot of the 65816:
BigEd wrote:
Here's a curiousity -
this 65816 programming book has a die photo on the cover and it looks like a stretch-limo version of 6502. The datapath appears to be double length not double width:
Attachment:
File comment: 65816 die from book cover
658162.jpg [ 12.83 KiB | Viewed 1559 times ]
Recently I had a look at Bill Mensch's topography patents, and
US patent 4,739,475 gives us some dimensions, as well as a floorplan and block diagram:
Attachment:
File comment: 65816 chip floorplan from patent
65816floorplan.png [ 192.54 KiB | Viewed 1559 times ]
As usual, the drawings by the designer are upside-down compared to the photo-micrographs. Notice there's a temporary register (towards the right, labelled 159).
Attachment:
File comment: 65816 block diagram from patent
65816block.png [ 245.53 KiB | Viewed 1559 times ]
Notice the temporary register isn't mentioned here.
Here are the dimensions of the elements in the datapath:
Attachment:
File comment: 65816 datapath dimensions table from patent
65816datapath3.png [ 137.69 KiB | Viewed 1559 times ]
(
US Patent 4,652,992 does similarly for the 65c02.)
Cheers
Ed
Edit: replace lost imageshack-hosted images with attachments
Edit: update links to patents
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