/usr/share/doc/nasm/examples/br978756.asm is in nasm 2.11.08-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | ;Testname=br978756; Arguments=-Ox -felf64 -obr978756.o; Files=stdout stderr br978756.o
[bits 64]
MOVNTDQA xmm1, oword [rsi]
MOVLPD xmm2, qword [rdi]
MOVLPD xmm2, [rdi]
MOVLPD qword [rdi], xmm2
MOVLPD [rdi], xmm2
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