Comments and continuation lines

Comments can contain any characters valid in the assembler language. Comments can be continued on more than one line by placing an asterisk in column 1 as shown in the following example. In this book, the comments field is not shown in the macroinstruction's assembler format table.

Operands can also be continued on additional lines as shown in the following. If the operands are not extended to column 71, they must be separated after a comma. The continuation character in column 72 can be any nonblank character, but it cannot be a character of an operand. Comments must be separated from operands by at least one blank. The following table shows where continuation characters appear; these characters are omitted from other examples in this book.

Figure 1. How to code comments and continuation lines

The diagram shows an example to code comments and continuation lines. Comments start with an asterisk in column 1. Operands are continued on additional lines by placing an X in column 72.