Mix and Match

MOR $X,$Y,$Z
MXOR $X,$Y,$Z

Specification:

Assume that the 64 bits in $Y are numbered as follows (and similar for the bits in register $Z and $X):

y₀₀y₀₁...y₀₇ y₁₀y₁₁...y₁₇ ... y₇₀y₇₁...y₇₇

Now bit x_ij in register register $X is computed as follows:

MOR:	xij = y0j& zi0 | y1j& zi1 | ... | y7j& zi7
MXOR:	xij = y0j & zi0 ˆ y1j & zi1 ˆ ... ˆ y7j & zi7

Timing:

1υ

Description:

These instructions regard the 8 Byte of a register as a 8×8-Matrix and compute the result as a matrix multiplication, where in MOR, Addition is replaced by OR (logical or (|)) and in MXOR, Addition is replaced by XOR (exclusive or (ˆ)). In both cases the AND operation (&) is used instead of multiplication.