모두의 코드
SHA1NEXTE (Intel x86/64 assembly instruction)
SHA1NEXTE
Calculate SHA1 State Variable E after Four Rounds
참고 사항
아래 표를 해석하는 방법은 x86-64 명령어 레퍼런스 읽는 법 글을 참조하시기 바랍니다.
Opcode/ | Op/En | 64/32 | CPUID | Description |
|---|---|---|---|---|
| RM | V/V | SHA | Calculates SHA1 state variable E after four rounds of operation from the current SHA1 state variable A in xmm1. The calculated value of the SHA1 state variable E is added to the scheduled dwords in xmm2/m128, and stored with some of the scheduled dwords in xmm1. |
Instruction Operand Encoding
Op/En | Operand 1 | Operand 2 | Operand 3 |
|---|---|---|---|
RM | ModRM:reg (r, w) | ModRM:r/m (r) | NA |
Description
The SHA1NEXTE calculates the SHA1 state variable E after four rounds of operation from the current SHA1 state variable A in the destination operand. The calculated value of the SHA1 state variable E is added to the source operand, which contains the scheduled dwords.
Operation
SHA1NEXTE
TMP <- (SRC1[127:96] ROL 30); DEST[127:96] <- SRC2[127:96] + TMP; DEST[95:64] <- SRC2[95:64]; DEST[63:32] <- SRC2[63:32]; DEST[31:0] <- SRC2[31:0];
Intel C/C++ Compiler Intrinsic Equivalent
SHA1NEXTE : __m128i _mm_sha1nexte_epu32(__m128i, __m128i);
Flags Affected
None
SIMD Floating-Point Exceptions
None
Other Exceptions
See Exceptions Type 4.
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