\c MASKMOVQ mm1,mm2 ; 0F F7 /r [KATMAI,MMX]
-\c{MASKMOVQ} stores data from xmm1 to the location specified by
+\c{MASKMOVQ} stores data from mm1 to the location specified by
\c{ES:(E)DI}. The size of the store depends on the address-size
attribute. The most significant bit in each byte of the mask
-register xmm2 is used to selectively write the data (0 = no write,
+register mm2 is used to selectively write the data (0 = no write,
1 = write) on a per-byte basis.