# X86.Sse4_2 > SSE 4.2 intrinsics ## Definition * **Type:** Class * **Namespace:** [Unity.Burst.Intrinsics](/engine/6000.7/script-reference/unity/burst/intrinsics.md) * **Assembly:** UnityEngine.BurstModule ```csharp public static class X86.Sse4_2 ``` ## Static Properties | Property | Description | | --------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- | | [IsSse42Supported](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/issse42supported.md) | Evaluates to true at compile time if SSE 4.2 intrinsics are supported. | ## Static Methods | Method | Description | | ------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [cmpestra](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestra.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if b did not contain a null character and the resulting mask was zero, and 0 otherwise. | | [cmpestrc](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestrc.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if the resulting mask was non-zero, and 0 otherwise. | | [cmpestri](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestri.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and store the generated index in dst. | | [cmpestrm](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestrm.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and store the generated mask in dst. | | [cmpestro](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestro.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns bit 0 of the resulting bit mask. | | [cmpestrs](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestrs.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if any character in a was null, and 0 otherwise. | | [cmpestrz](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpestrz.md) | Compare packed strings in a and b with lengths la and lb using the control in imm8, and returns 1 if any character in b was null, and 0 otherwise. | | [cmpgt\_epi64](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpgt-epi64.md) | Compare packed 64-bit integers in a and b for greater-than, and store the results in dst. | | [cmpistra](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistra.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if b did not contain a null character and the resulting mask was zero, and 0 otherwise. | | [cmpistrc](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistrc.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if the resulting mask was non-zero, and 0 otherwise. | | [cmpistri](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistri.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and store the generated index in dst. | | [cmpistrm](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistrm.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and store the generated mask in dst. | | [cmpistro](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistro.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and returns bit 0 of the resulting bit mask. | | [cmpistrs](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistrs.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if any character in a was null, and 0 otherwise. | | [cmpistrz](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/cmpistrz.md) | Compare packed strings with implicit lengths in a and b using the control in imm8, and returns 1 if any character in b was null, and 0 otherwise. | | [crc32\_u16](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/crc32-u16.md) | Starting with the initial value in crc, accumulates a CRC32 value for unsigned 16-bit integer v, and stores the result in dst. | | [crc32\_u32](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/crc32-u32.md) | Starting with the initial value in crc, accumulates a CRC32 value for unsigned 32-bit integer v, and stores the result in dst. | | [crc32\_u64](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/crc32-u64.md) | Starting with the initial value in crc, accumulates a CRC32 value for unsigned 64-bit integer v, and stores the result in dst. | | [crc32\_u8](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2/crc32-u8.md) | Starting with the initial value in crc, accumulates a CRC32 value for unsigned 8-bit integer v, and stores the result in dst. | ## Enums | Enum | Description | | -------------------------------------------------------------------------------------------- | ------------------------------------------ | | [X86.Sse4\_2.SIDD](/engine/6000.7/script-reference/unity/burst/intrinsics/x86/sse4-2sidd.md) | Constants for string comparison intrinsics |