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Results 1 - 2 of 2 for PSHUFL (0.17 sec)

  2. github.com/golang/go

    src/internal/bytealg/indexbyte_amd64.s 

    //   R8: address to put result
TEXT	indexbytebody<>(SB), NOSPLIT, $0
	// Shuffle X0 around so that each byte contains
	// the character we're looking for.
	MOVD AX, X0
	PUNPCKLBW X0, X0
	PUNPCKLBW X0, X0
	PSHUFL $0, X0, X0

	CMPQ BX, $16
	JLT small

	MOVQ SI, DI

	CMPQ BX, $32
	JA avx2
sse:
	LEAQ	-16(SI)(BX*1), AX	// AX = address of last 16 bytes
	JMP	sseloopentry

	PCALIGN $16
sseloop:
    Registered: Wed Jun 12 16:32:35 UTC 2024
    - Last Modified: Wed Nov 01 19:06:01 UTC 2023
    - 3.1K bytes
    - Viewed (0)
  3. github.com/golang/go

    src/internal/bytealg/count_amd64.s 

    // This function requires the POPCNT instruction.
TEXT countbody<>(SB),NOSPLIT,$0
	// Shuffle X0 around so that each byte contains
	// the character we're looking for.
	MOVD AX, X0
	PUNPCKLBW X0, X0
	PUNPCKLBW X0, X0
	PSHUFL $0, X0, X0

	CMPQ BX, $16
	JLT small

	MOVQ $0, R12 // Accumulator

	MOVQ SI, DI

	CMPQ BX, $64
	JAE avx2
sse:
	LEAQ	-16(SI)(BX*1), AX	// AX = address of last 16 bytes
	JMP	sseloopentry
    Registered: Wed Jun 12 16:32:35 UTC 2024
    - Last Modified: Fri Oct 06 20:54:43 UTC 2023
    - 4.7K bytes
    - Viewed (0)
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