I could use an enhanced CALL macro. I am writing RENT code and trying to be "baseless". For the RENT, I am using CALL with MF=(E,(1)) and GPR1 pointing to an array of fullwords in dynamic storage. The parameters within the CALL are a mixture of locations within the CSECT (these are read-only "constants") and areas in dynamic storage. Basically the CALL uses an "LA 0,..." to load the address of the parameter into GPR0 followed by a "ST 0,n(0,1)" to save the address in the parameter area. I wish that there were a way to tell the CALL to use a LARL instruction to address the parameters which are within the CSECT. Even if I had to do it on a parameter by parameter indicator, such as prefixing the symbol with an "invalid" character. For instance, a !. So my CALL would look like: CALL (15),(!IN_CSECT,IN_DYN),MF=(E,(1)) . So that CALL would use
LARL 0,IN_CSECT ST 0,0(0,1) LA 0,IN_DYN ST 0,4(0,1) BALR 14,15 This would eliminate almost all base+index instructions in my current code. Well, I still have a few MVCs and CLCs left too. Am I going too crazy? I'm a bit "register poor" because I really love to keep values in registers, rather than do redundant loads and stores. -- 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
