The book should refer to the operand by the name given the syntax diagram, not the English name "second operand". I have talked to several of my assembler comrades and they agree: Using the phraseology of "second operand" is not specific and leads the reader to counting from left to right to the second operand. When I look at the PDF book, the subscripts are tiny and hard to read with these old eyes. I would have to put on my glasses to actually be sure of the subscript.
I understand now but it was, and still is, confusing. John -----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Edward Jaffe Sent: Monday, February 18, 2013 4:13 PM To: [email protected] Subject: Re: Load and Add On 2/18/2013 12:37 PM, Bodoh John Robert [Contractor] wrote: > That's right, the operands are listed after the mnemonic. However, my > presumption was the "second operand" is referring to the operand that is in > the second position. It is very confusing to say "second" refers to the > subscript. It has always been thus. The reason for the subscript is to denote which operand is being discussed--since storage operands are routinely broken up into pieces e.g., B2 and D2. -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 http://www.phoenixsoftware.com/
