> -----Original Message----- > From: IBM Mainframe Assembler List > [mailto:[email protected]] On Behalf Of Paul Gilmartin > Sent: Tuesday, January 17, 2012 9:32 AM > To: [email protected] > Subject: Re: How bad is the EX instruction? > > On Jan 16, 2012, at 08:21, Kerry wrote: > > > > Performance is one of the strongest reasons for coding in > assembler and > > this discussion characterizes some of the low hanging fruit > available for > > the attainment thereof. > > > Others have said here that performance is a strong reason > for _not_ coding in assembler: > > o Compiler developers have done the research on instruction > timings and know better than most end users what sequences > fit the pipelines optimally. > > o Compiled code can be re-optimized for a new generation of > hardware simply by recompiling. > > o Interpreters can dynamically recompile based on statistical > profiles evaluated at the actual time of execution. > > -- gil
My usual "whine". I would likely abandon HLASM for the most part. IF I had a C license. But, one makes due with what one has. -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM
