diff options
Diffstat (limited to 'powerpc64/p7/chacha-2core.asm')
| -rw-r--r-- | powerpc64/p7/chacha-2core.asm | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/powerpc64/p7/chacha-2core.asm b/powerpc64/p7/chacha-2core.asm index 725d72af..265918b6 100644 --- a/powerpc64/p7/chacha-2core.asm +++ b/powerpc64/p7/chacha-2core.asm @@ -212,6 +212,23 @@ C Y3 A15 B15 A13 B13 X3 A12 B12 A14 B14 (Y3 swapped) vadduwm X2, X2, S3 vadduwm Y3, Y3, S3p1 +IF_BE(` + C Output always stored in little-endian byte order. + C Can reuse S0 and S1 to construct permutation mask mask. + li r9, 0 + lvsl S0, r9, r9 C 00 01 02 03 ... 0c 0d 0e 0f + vspltisb S1, 0x03 C 03 03 03 03 ... 03 03 03 03 + vxor S1, S1, S0 C 03 02 01 00 ... 0f 0e 0d 0c + + vperm T0, T0, T0, S1 + vperm X0, X0, X0, S1 + vperm X1, X1, X1, S1 + vperm X2, X2, X2, S1 + vperm Y0, Y0, Y0, S1 + vperm Y1, Y1, Y1, S1 + vperm Y2, Y2, Y2, S1 + vperm Y3, Y3, Y3, S1 +') stxvw4x VSR(T0), 0, DST stxvw4x VSR(X0), r6, DST stxvw4x VSR(X1), r7, DST |