Cortex-M0 DesignStart processor size (FPGA)?

Dear sirs,

I have a question about the size of synthesized logic for Cortex-M0 DesignStart processor.

When I use ISE of Xilinx to synthesize Cortex-M0 DesignStart processor (version r1p0-00rel0), I have result as below.

(I configure for using Spartan-3AN, XC3S200AN, Grade = -4 in ISE).


As Xilinx's mention at this link , they used around 3,000 LUT4

for Cortex-M1 (1,900 LUT4 at page 59 + 1,100 LUT4 at page 56 if Cortex-M1 included MMU block).

Have you ever synthesized Cortex-M0 DesignStart processor by ISE of Xilinx? I want to compare my result with yours. Because I need

to map the synthesized gate into Spartan-3AN XC3S200AN, but the overmapped occurred at 4 input LUT4 and Slices as my

attached picture.

If you have any idea for this, please send me in this topic.

PS: I am not know my post is suitable in this area or not. If it is not suitable, you can move it to another one and inform me the new