Subversion Repositories mpeg2fpga

This is the testbench for the idct implementation.

I found an ieee1180 test program for the jpeg idct, and modified it as follows:

- write idct input to file

- execute iverilog simulation of idct

- idct simulation writes idct output to file

- read idct output from file

compares verilog idct implementation  with floating point idct results, and prints worst error , mean error, mean square error.

Use:

compile verilog files into idct-verilog:

iverilog -o idct-verilog *.v

compile c test program:

make

run tests:

./doieee ./ieeetest