Abstract: Method, apparatus, and program means for performing a string comparison operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.

Abstract: A method of one aspect may include receiving a rotate instruction. The rotate instruction may indicate a source operand and a rotate amount. A result may be stored in a destination operand indicated by the rotate instruction. The result may have the source operand rotated by the rotate amount. Execution of the rotate instruction may complete without reading a carry flag.

Abstract: Receiving an instruction indicating a source operand and a destination operand. Storing a result in the destination operand in response to the instruction. The result operand may have: (1) first range of bits having a first end explicitly specified by the instruction in which each bit is identical in value to a bit of the source operand in a corresponding position; and (2) second range of bits that all have a same value regardless of values of bits of the source operand in corresponding positions. Execution of instruction may complete without moving the first range of the result relative to the bits of identical value in the corresponding positions of the source operand, regardless of the location of the first range of bits in the result. Execution units to execute such instructions, computer systems having processors to execute such instructions, and machine-readable medium storing such an instruction are also disclosed.

Abstract: A method in one aspect may include receiving a multiply instruction. The multiply instruction may indicate a first source operand and a second source operand. A product of the first and second source operands may be stored in one or more destination operands indicated by the multiply instruction. Execution of the multiply instruction may complete without writing a carry flag. Other methods are also disclosed, as are apparatus, systems, and instructions on machine-readable medium.

Abstract: A method in one aspect may include receiving a multiply instruction. The multiply instruction may indicate a first source operand and a second source operand. A product of the first and second source operands may be stored in one or more destination operands indicated by the multiply instruction. Execution of the multiply instruction may complete without writing a carry flag. Other methods are also disclosed, as are apparatus, systems, and instructions on machine-readable medium.

Abstract: Method, apparatus, and program means for performing a string comparison operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.

Abstract: Method, apparatus, and program for performing a string comparison operation. The apparatus includes execution resources to execute a first instruction. In response to the first instruction, the execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.

Abstract: Processor to perform a packed comparison instruction. The processor includes a decoder to decode the packed comparison instruction. The packed comparison instruction has an immediate to indicate the comparison operation.

Abstract: Processor to perform a packed comparison instruction. The processor includes a decoder to decode the packed comparison instruction. The packed comparison instruction has an immediate to indicate the comparison operation.

Abstract: Method, apparatus, and program for performing a comparison operation. The apparatus includes execution resources to execute a first instruction. In response to the first instruction, the execution resources store a result of a comparison between valid data element of a first and second operand.

Abstract: Method, apparatus, and program for performing a comparison operation. The apparatus includes execution resources to execute a first instruction. In response to the first instruction, the execution resources store a result of a comparison between data element of a first and second operand.

Abstract: Method, apparatus, and program for performing a comparison operation. An apparatus includes execution resources to execute a first instruction. In response to the first instruction, the execution resources store a result of a comparison between valid data elements of a first and second operand.

Abstract: A processor to perform a string comparison instruction. The processor includes a decoder to decode the string comparison instruction. The packed comparison instruction is to have an immediate that is to be used to control performance of the string comparison instruction. The immediate includes a first set of two bits, a second set of two bits, a third set of two bits, and a fourth bit. The processor also includes an execution unit coupled with the decoder to execute the packed comparison instruction.

Abstract: A processor includes a decoder logic to decode a compare instruction, and an execution unit to execute the compare instruction. The compare instruction is to cause the processor to compare integer data elements of a first 64-bit SIMD integer operand with integer data elements of a second 64-bit SIMD integer operand. The integer data elements of the first 64-bit SIMD integer operand to be compared with the integer data elements of the second 64-bit SIMD integer operand are to be in same data element positions. The compare instruction is also to cause the processor to store a plurality of indicators of whether the compared integer data elements of the first and second 64-bit SIMD integer operands are equal. The plurality of indicators are expanded data elements, each of a first multi-bit size.

Abstract: A processor includes a decoder logic to decode a compare instruction, and an execution unit to execute the compare instruction. The compare instruction is to cause the processor to determine whether each 32-bit floating point data element of first and second SIMD floating point operands is valid, compare only valid 32-bit floating point data elements of the first 64-bit SIMD floating point operand with only valid 32-bit floating point data elements of the second 64-bit SIMD floating point operand in the same data element position, and store indicators of whether the compared valid 32-bit floating point data elements of the first and second 64-bit SIMD floating point operands are equal.

Abstract: Method, apparatus, and program means for performing a string comparison operation. An apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.

Abstract: Method, apparatus, and machine-readable medium for performing a string comparison operation. An apparatus includes execution resources to execute a first instruction. In response to the first instruction, the execution resources store a result of a comparison between each data element of a first and second operands corresponding to a first and second text strings, respectively.

Abstract: A method of one aspect may include receiving a rotate instruction. The rotate instruction may indicate a source operand and a rotate amount. A result may be stored in a destination operand indicated by the rotate instruction. The result may have the source operand rotated by the rotate amount. Execution of the rotate instruction may complete without reading a carry flag.

Abstract: Method, apparatus, and program means for performing a string comparison operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.

Abstract: Method, apparatus, and program means for performing a string comparison operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store a result of a comparison between each data element of a first and second operand corresponding to a first and second text string, respectively.