30 lines
541 B
ArmAsm
30 lines
541 B
ArmAsm
// Code generated by command: go run asm.go -out sum.s -stubs stub.go. DO NOT EDIT.
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#include "textflag.h"
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// func Sum(xs []uint64) uint64
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TEXT ·Sum(SB), NOSPLIT, $0-32
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MOVQ xs_base(FP), AX
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MOVQ xs_len+8(FP), CX
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// Initialize sum register to zero.
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XORQ DX, DX
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// Loop until zero bytes remain.
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loop:
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CMPQ CX, $0x00
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JE done
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// Load from pointer and add to running sum.
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ADDQ (AX), DX
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// Advance pointer, decrement byte count.
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ADDQ $0x08, AX
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DECQ CX
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JMP loop
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// Store sum to return value.
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done:
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MOVQ DX, ret+24(FP)
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RET
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