3D expected tests.
The testbench does a comparison to the outputs.
If you want to see what they look like, you can use run/bin/xls2BMP [-5 -6] intel xxx.vout.
This will create a BMP that can be viewed with any bitmap viewer. -5 or -6 depends on if the test is 565 or 555 mode 16BPP. leave off for 32BPP.

The 2D tests produce an ascii BMP using 'awk -f bitmap.awk testname'