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rygorous/gist:9387cbe6f33708adf91ed95e413bddc0

Created March 24, 2019 06:21
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A32 NEON 8x8 U16 transpose
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gistfile1.txt
; input in Q0..Q7
; swap antidiagonal elements within 2x2 blocks
vtrn.16 q0, q1
vtrn.16 q2, q3
vtrn.16 q4, q5
vtrn.16 q6, q7
; swap antidiagonal 2x2 blocks within 4x4 blocks
vtrn.32 q0, q2
vtrn.32 q1, q3
vtrn.32 q4, q6
vtrn.32 q5, q7
; swap antidiagonal 4x4 blocks within 8x8 matrix
vswp d1, d8
vswp d3, d10
vswp d5, d12
vswp d7, d14
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