Bit masking

[Controls Guy]

A cast isn't a source/destination thing, it is just a re-interpretation of the data at a location. The casting issue here is alignment, and related to how RISC style processors work. When you are doing an extraction cast (bigger to smaller), wrong answers aren't possible, but aggregation casts (smaller to larger) can result in mis-alignments that the processor architecture can't handle. So any time you are aggregating, the data must be aligned on the boundary of the cast size...bytes, words, or dwords. So C96 is a great choice because it is valid for bytes, words, or dwords...and was close to his specified range.

Of course -- senior moment on my part!    I was mixing thoughts about casting and MOVEing between different size source and destination and wanted to make sure that MOVER didn't need to be word-aligned.  Thanks.

[BobO]

Of course -- senior moment on my part! 

Dude...I understand that more and more all the time. More and more...

[DLTimmons]

BobO

What help me was finnaly finding the help page on casting. In the old gw basic you bit masked to get bit out of a Byte word or double word. It would have helped me to have a link in the help files that routed bit masking to the casting page.

All part of the learing curve, You still have a very powerful processor the more power the larger the learnming curve

Senior moment more like senior hour

[BobO]

BobO

What help me was finnaly finding the help page on casting. In the old gw basic you bit masked to get bit out of a Byte word or double word. It would have helped me to have a link in the help files that routed bit masking to the casting page.

All part of the learing curve, You still have a very powerful processor the more power the larger the learnming curve

Senior moment more like senior hour

Do-more is...um...extensive. There really is a lot here. Often the issue isn't whether it can do something, it's which way is best to do it. Our hope is that the power users can do everything they want to, but that it's also comfortable for the folks who have more basic needs. I think it fits that, but I'm probably too close to it to be a good judge.