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IBM 5280 Distributed Data System - Index of

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C.ompare Binary Half-Register for Equal U FH BRn EO)Source: IFH BRn EO 0-255 GOTO instruction labelII ; II~Object: 6A1 10 I «0 8 15 23I310 D IIIIo Test register: The address <strong>of</strong> the binary register that contains data to compare.D Compare constant: Hex OO-FF.II Branch instructions: The number minus 1 <strong>of</strong> the 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 content <strong>of</strong> the low-order byte <strong>of</strong> the test register is equalto the compare constant.228

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