MAD instruction, RV770 vs RV870

Discussion created by Ceq on Feb 22, 2010
Latest reply on Feb 26, 2010 by Ceq

According to Stream KernelAnalyzer, when the target is the Radeon 58xx the generated assembly will take advantage of the hardware MAD capabilities.

Radeon 48xx family also has MAD capabilities, but the IL compiler does not generate the proper instructions to use them.

Is this normal? Is there any reason for this behavior?