IBM 5280 Distributed Data System - Index of

Compare Binary Half-Register for Greater or Equal, Less or Equal (IFH BRn GE/LE)Source: IFH BRn [~:] 0-255 GOTO instruction labelObject:II6B I ! I @/ ~ I ~ IlI Ia 8 r 15 23 31IDO II IID Test register: The address of the binary register that contains data tocompare.OBit 15:0= GE.1 = LE.II Compare constant: Hex OO-FF.II Branch instructions: The number minus 1 of the 4-byte object code instructionsfrom the next sequential instruction to skip if the branch is taken (±128object code instruction from the next instruction). If bit 23 is 1, the numberis a negative displacement in twos complement form.The branch is taken if:• The content of the low-order byte of the test register is greater than or equal tothe compare data and GE is specified.• The content of the low-order byte of the test register is less than or equal to thecompare constant and LE is specified.Object Code Instruction Format 229