A recent hackachat with the Parallax team provided me with some interesting "data points" :-)
@Chip Gracey sent me a large file containing the synthesis report of his latest creation, the Propeller 2, and I did some reverse engineering :-)
For example I extracted the different types of gates and it's very interesting :
adhalfx2_s and2x1_s and2x4_s and4x4_s ao21x2_s ao22x1_s ao22x2_s aoi21abx1_s aoi21abx2_s aoi21ax1_s aoi21ax2_s aoi21cx05_s aoi21cx1_s aoi21cx2_s aoi21x1_s aoi21x2_s aoi221x1_s aoi221x2_s aoi222x05_s aoi222x2_s aoi22x05_s aoi22x1_s aoi22x2_s aoi31x1_s aoi31x2_s aoi32x05_s bufx10_s bufx3_s bufx4_s bufx6_s bufx8_s clkbufx10_s clkbufx3_s clkbufx4_s clkbufx6_s clkbufx8_s clkinvx10_s clksgpx6_s dffprx2_s exnor2x1_s exnor2x2_s exor2x2_s invx1_s invx2_s invx3_s invx4_s majix1_s muxi2x05_s muxi2x1_s muxi2x2_s nand2ax1_s nand2ax2_s nand2ax3_s nand2ax4_s nand2x1_s nand2x2_s nand2x3_s nand2x4_s nand3drx2_s nand3x1_s nand3x2_s nand4x2_s nor2ax05_s nor2ax2_s nor2ax3_s nor2ax4_s nor2x05_s nor2x1_s nor2x2_s nor2x3_s nor2x4_s nor3x2_s oa211x2_s oa21x1_s oa21x2_s oa222x2_s oa31x2_s oai211x05_s oai211x1_s oai211x2_s oai21ax1_s oai21ax2_s oai21x1_s oai21x2_s oai221x1_s oai221x2_s oai22x05_s oai22x1_s oai22x2_s oai311x2_s oai31x2_s oai321x2_s or2x4_s or3x2_s sdffpmrqx1_s sdffprqx05_s sdffprqx1_s sdffprqx2_s sdffprx1_s sdffprx2_s
- The x suffix followed by a number indicates the strength of the gate, depending on the load to drive (wires and gates).
- some gates have up to 4 inputs, which helps a lot with high fanout/fanin depth
- the first prototype exceeded 300MHz at 180nm with 24 gates in the critical datapath :-O