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7.47 .irpc symbol,values

Evaluate a sequence of statements assigning different values to symbol. The sequence of statements starts at the .irpc directive, and is terminated by an .endr directive. For each character in value, symbol is set to the character, and the sequence of statements is assembled. If no value is listed, the sequence of statements is assembled once, with symbol set to the null string. To refer to symbol within the sequence of statements, use \symbol.

For example, assembling

        .irpc    param,123
        move    d\param,sp@-

is equivalent to assembling

        move    d1,sp@-
        move    d2,sp@-
        move    d3,sp@-

For some caveats with the spelling of symbol, see also the discussion at See Macro.