How is the TG68.C V4.0 in terms of performance on the Xilinx XC3S1600E?
SysInfo reports 3.29 MIPS and speed 2.59 times higher than a stock A1200.
The CPU core is clocked at 14.18 MHz but it's being slowed down to 7.09 MHz whenever it wants to access memory bus (and it wants it almost all the time so only multi-cycle instructions like multiplication, division and shifts/rotations operate any faster). It will change when there is a cache implemented.
Also the CPU core has only 16-bit wide data bus so the performance could be improved in the future by implementing direct long-word transfers but it entirely depends on Tobias.