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41 lines
793 B
41 lines
793 B
#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack,"",%progbits
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#endif
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#if defined(__x86_64__)
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.global s16_mix_in_avx2
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.text
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# 16 bits in 256 bits = 16 samples at a time
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s16_mix_in_avx2:
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mov %rdx, %rax
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and $-16, %al # 16 samples at a time
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xor %rcx, %rcx
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loop:
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cmp %rax, %rcx
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jge remainder
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vmovdqu (%rdi,%rcx,2), %ymm0 # 16-bit size
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vpaddsw (%rsi,%rcx,2), %ymm0, %ymm1
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vmovdqu %ymm1, (%rdi,%rcx,2) # 16-bit size
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add $16, %rcx # 16 samples at a time
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jmp loop
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remainder:
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xor %r8, %r8
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xor %r9, %r9
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cmp %rdx, %rcx
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jge done
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mov (%rsi,%rcx,2), %r8w # 16-bit size
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mov (%rdi,%rcx,2), %r9w # 16-bit size
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movd %r8, %xmm0
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movd %r9, %xmm1
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paddsw %xmm0, %xmm1
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movd %xmm1, %r8
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mov %r8w, (%rdi,%rcx,2) # 16-bit size
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inc %rcx
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jmp remainder
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done:
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ret
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#endif
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