提供向量水平比较功能之指令与逻辑;INSTRUCTION AND LOGIC TO PROVIDE VECTOR HORIZONTAL COMPARE FUNCTIONALITY

摘要

提供向量水平比较功能的指令及逻辑。某些实施例回应指令，所述指令指明：目的地运算元、向量元的大小、源运算元、及对应于源运算元中向量元的一部份之遮罩；从对应于遮置之源运算元中指明的大小的资料栏位读取值，以及比较值的相等性。在某些实施例中，为回应侦测到不相等，采取捕捉。在某些替代实施例中，设定旗标。在其它替代实施例中，将遮罩栏位设定至对应于不等值的被遮罩状态。在某些实施例中，将值广播给目的地运算元中被指明的大小的所有资料栏位，以回应源运算元的所有未被遮罩的资料栏位等于特定值。; read values from data fields of the specified size in the source operand, corresponding to the mask and compare the values for equality. In some embodiments, responsive to a detection of inequality, a trap may be taken. In some alternative embodiments, a flag may be set. In other alternative embodiments, a mask field may be set to a masked state for the corresponding unequal value(s). In some embodiments, responsive to all unmasked data fields of the source operand being equal to a particular value, that value may be broadcast to all data fields of the specified size in the destination operand.