1. xerox 560 computer system - The UK Mirror Service

2 3 4 Result of Comparison- 0 No I-bits compare, (R) n EHSE = O.One or more I-bits compare,(R) n EHSE -I O.Condition code settings:2 3 4 Result of Comparison- 0 0 Equal.- 0 Register doubleword less than effectivedoub I eword.CWCOMPARE WORD(Word index alignment)o Register doubleword greater than effectivedoubleword.CSCOMPARE SELECTIVECOMPARE WORD compares the contents of register R withthe effective word, with both words treated as signed fixedpointquantities, and sets the condition code according tothe results of the comparison.Affected: CC2, CC3, CC4(R) : EWCondition code settings:2 3 4 Result of Comparison- 0 0 Equal.- 0 Register word less than effective word.o Register word greater than effective word.- 0 No I-bits compare, (R) n EW = O.One or more I-bits compare, (R) n EW -10.COMPARE SE LECTIVE compares the contents of register Rwith the effective word in only those bit positions selectedby a I in corresponding bit positions of register Ru I (mask).The contents of register R and the effective word are ignoredin those bit positions designated by a 0 in corresponding bitpositions of register Rul. The selected contents of register Rand the effective word are treated as positive integer magnitudes,and the condition code is set according to the resultof the comparison. If the R fieldof CS is an odd value;CS compares the contents of register R with the logicalproduct (AND) of the effective word and the contents ofregister R.Affected: CC3, CC4If R is even: (R) n (Rul) : EW n (Rul)If R is odd: (R): EW n (R)Condi ti on code setti ngs:2 3 4 Resu I ts of Compari son under Mask in Ru 1CDCOMPARE DOUBLEWORD- 0 0 Equal.- - 0 Register word less than effective word.o Register word greater than effective word.(if R is even).COMPARE DOUBLEWORD compares the effective doublewordwith the contents of registers Rand Rul (with bothdoublewords treated as signed, fixed-point quantities)and sets the condition code according to the results of thecomparison. If the R field of CD is an odd value, CD formsa 64-bit register operand (by duplicating the contents ofregister R for both the 32 high-order bits and the 32 loworderbits) and compares the effective doubleword with the64-bit register operand. The condition code settings arebased on the 64-bit comparison.Affected: CC3, CC4(R, Run: EDCLRCOMPARE WITH LIMITS IN REGISTERS(Word index alignment)COMPARE WITH LIMITS IN REGISTERS simultaneouslycompares the effective word with the contents of register Rand with the contents of register Rui (with aii three wordstreated as signed fixed-point quantities), and sets the conditioncode according to the results of the comparisons.Affected: CC(R) : EW, (Rul) : EW68 Comparison Instructions