/* The next instruction accepts WordReg so that `movl %gs,%esi' can be
used to move a segment register to a 32 bit register without using
a size prefix, which works although Intel does not document it. I
- think it clobbers the upper 16 bits in the 32 bit register. */
+ think it zeroes the upper 16 bits in the 32 bit register. */
{ "mov", 2, 0x8c, _, D|Modrm, { SReg3|SReg2, WordReg|WordMem, 0 } },
/* move to/from control debug registers */
{ "mov", 2, 0x0f20, _, D|Modrm, { Control, Reg32, 0} },