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P1V - LE sizes — Parallax Forums

P1V - LE sizes

Cluso99Cluso99 Posts: 18,066
edited 2016-07-22 02:39 in Propeller 1
Thought I would just have a look to see what LE sizes are used for some of the P1V...
I had previously determined the video and the cog. These are using the De0-Nano (Cyclone IV) and Quartus 16.0).
8x Cog with 8x Video, 48KB Hub (P1V unscrambled)...
* 14,646 - DE0-nano (EP4CE22F17C6)
* 14,613 - DE2-115  (EP4CE115F29C7)
* 8,440 ALMs of 9,430 - BeMicroCV (5CEFA2F23C8)
* ?????? - MAX10M16SCE144C8G

LE's used (EP4CE22xxx)...
4x Cog, no Video...
* 6921 - 4 cogs, no video
*  216 - 1x video
* 1534 - 1 cog, no video
ALU (1x)...
* 205 - overhead
* 149 - add/sub/etc instructions
* 121 - mins/etc instructions
* 288 - rev/etc instructions
VID (1x)...
* 216
CTR (2x)...
* 472

It would be interesting to compare the real P1 transistor/gate count with the P1V Verilog version. I am sure Chip's handcrafted logic would have done a way better job ;)

Comments

  • Thanks Cluso, good information to have.

    Some of this info is buried in other threads, but deserves its own thread.
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