3-383
INSTRUCTION SET REFERENCE
MASKMOVQByte Mask Write (Continued)
Operation
IF (SRC[7] = 1) THEN
m64[EDI] = DEST[7-0];
ELSE
M64[EDI] = 0X0;
IF (SRC[15] = 1) THEN
m64[EDI] = DEST[15-8];
ELSE
M64[EDI] = 0X0;
IF (SRC[23] = 1) THEN
m64[EDI] = DEST[23-16];
ELSE
M64[EDI] = 0X0;
IF (SRC[31] = 1) THEN
m64[EDI] = DEST[31-24];
ELSE
M64[EDI] = 0X0;
IF (SRC[39] = 1) THEN
m64[EDI] = DEST[39-32];
ELSE
M64[EDI] = 0X0;
IF (SRC[47] = 1) THEN
m64[EDI] = DEST[47-40];
ELSE
M64[EDI] = 0X0;
IF (SRC[55] = 1) THEN
m64[EDI] = DEST[55-48];
ELSE
M64[EDI] = 0X0;
IF (SRC[63] = 1) THEN
m64[EDI] = DEST[63-56];
ELSE
M64[EDI] = 0X0;
