Re:Zylin ZPU: The worlds smallest 32 bit CPU with GCC toolchain
by gsmecher on Friday April 14, 2023 @11:51AM
(#35570916)
The ZPU may be smaller than you're crediting. 440 LUTs is very little space.
The reported synthesis results ("440 LUTs") are on old Spartan-3 fabric. These are LUT4s, and anything from Xilinx newer than about 2006 uses much more capable LUT6s. Hence, it's unfair to compare these figures directly. (Comparing against ICE40 fabric is better.)
The reported synthesis results ("440 LUTs") are on old Spartan-3 fabric. These are LUT4s, and anything from Xilinx newer than about 2006 uses much more capable LUT6s. Hence, it's unfair to compare these figures directly. (Comparing against ICE40 fabric is better.)