On 10/20/2013 3:28 PM, Bernd Oppolzer wrote:
... (but different from MVCL, the interruption is signalled to the program by means of CC = 3).
Which saves a *LOT* of silicon by offloading the restart to software. All of the new interruptible instructions work this way. Also, these instructions have the benefit of a guaranteed 256-byte minimum before they are interrupted, so they can work like non-interruptible instructions (e.g., MVC) as well. IOW, if you know you are working with "short" data (<256 bytes) you don't need to check for RC=3 at all... -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 http://www.phoenixsoftware.com/
