pcd mac assembler instruction.

clarence · Joined: 18 Mar 2014 Posts: 4

Does the pcd compiler implement the full mac instruction with two register prefetch and increment.

MAC B, W2*W3, W2, [W5]+=2, W3, [W7]+=4

In this case W2 and W3 pointers are both updated in the same cycle.

The documentation is not really clear on this.

Thanks

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Make a very small test program. Comment out the #nolist statement
in the PIC's .h file (so it will show all CCS "library" code). Make sure
the .LST file format is set for Symbolic in the CCS IDE or MPLAB project
build options menu. Then compile it and look at the .LST file.

Also use the forum search page for some historical problems in vs. 4.092:
http://www.ccsinfo.com/forum/viewtopic.php?t=38964

Also the CCS version list says: