>The difference is in the last line of asm. >CC5x generates : >RRF pwm,1 > >instead of > >RRF pwm,F After they are assembled they will be the same. "F" is a symbolic reference to "file register" but the assembler translates it to a 1, which is what actually goes into the machine instruction. Barry -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu