1130 Commercial Subroutine Package - All about the IBM 1130 ...

Control Character Function. (decimal point), (comma)CR (credit)This character remains in the mask field where placed. However,if zero suppression is requested, it will be removed ifit is to the left of the last character to be zero-suppressed.This character remains in the mask field where placed.However, if zero suppression is requested, it will beremoved if it is to the left of the last character to bezero-suppressed.These two characters can be placed in the two rightmostpositions of the mask field. They are undisturbed if thesource field is negative. (If the source field is positive,the characters C and R are blanked out. ) In editingoperations, a negative source field is indicated by an11-zone over the rightmost character. Whether CR isblanked out or not, no data will be edited into thesepositions when CR is present, but rather into the editcharacters to the left.The letters C and R may be used in the remainder ofthe edit mask, where they will be treated as normalalphabetic characters, without being subject to signcontrol.Only the R character is checked, so the C character maybe any legal character, and it will be treated asdescribed.- (minus) This character is handled similarly to CR in therightmost position of the mask field.* (asterisk)$ (floating dollarsign)This character operates the same as the 0 (zero) forzero suppression, except that asterisks rather thanblanks are inserted in the high-order nonsignificantpositions of the field, providing asterisk checkprotection.This character has the same effect as the 0 (zero) forzero suppression, except that a $ is inserted to the leftof the first significant character found, or to the leftof the position that stopped the zero suppression.The operation of the edit routine may be described in five steps:1. Characters are placed in the mask field from the source field, moving from rightto left. The characters 0 (zero), b (blank), * (asterisk) and $ (dollar sign) are replacedwith characters from the source field. No other characters in the maskfield are disturbed.