IBM 5280 Distributed Data System - Index of

Compare Decimal Digits for Greater or Equal, or Less Than or Equal UFD Rn GE/LE)I II II I f 1ISource: IFD Ra~~[~-:JGOTO instruction labelObject: 67IIi 40 8 15I / 23 31JD fJ IIo GE. The test register: The address of the decimal register that contains datato compare.LE. Compare data: The constant (hex 0-9) followed by hex 0, or the addressof the decimal register that contains the compare data.fJ GE. The compare data: The constant (hex 0-9) followed by hex 0, or theaddress of the decimal register that contains the compare data.LE. The test register: The address of the decimal register that contains thedata to compare.II Branch instruction: The number minus 1 of 4-byte object code instructionsfrom the next sequential instruction to skip if the branch is taken (±128object code instructions from the next instruction). If bit 23 is 1, the numberis a negative displacement in twos complement form.The branch is taken if:• The digit portion of the content of the test register is greater than or equal to thedigit portion of the compare data and G E is specified.• The digit portion of the content of the test register is less than or equal to thedigit portion of the compare data and LE is specified. If zone portion of therightmost byte of a decimal register contains hex D, the contents of the registerare negative. If it is not hex D, the contents of the register are positive.Object Code Instruction Format 225