Hi Uli, Apologies for the delayed response.
> > Shouldn't the check be implemented along the following lines? > > if (memsize == 32 && (align % 32) == 0) > align_bits = 256; > else if ((memsize == 16 || memsize == 32) && (align % 16) == 0) > align_bits = 128; > else if (memsize >= 8 && (align % 8) == 0) > align_bits = 64; > else > align_bits = 0; This looks OK to me. Looking at the ISA documents and the variants of the vldn instructions your summary is correct. The alignment specifier should not be greater than the memory size being transferred and checking this in this form is OK . regards, Ramana > > Bye, > Ulrich > > -- > Dr. Ulrich Weigand > GNU Toolchain for Linux on System z and Cell BE > ulrich.weig...@de.ibm.com >