.text .byte 0x0f, 0x1f, 0x0 .byte 0x0f, 0x1f, 0x40, 0x0 .byte 0x0f, 0x1f, 0x44, 0x0, 0x0 .byte 0x66, 0x0f, 0x1f, 0x44, 0x0, 0x0 .byte 0x0f, 0x1f, 0x80, 0x0, 0x0, 0x0, 0x0 .byte 0x0f, 0x1f, 0x84, 0x0, 0x0, 0x0, 0x0, 0x0 .byte 0x66, 0x0f, 0x1f, 0x84, 0x0, 0x0, 0x0, 0x0, 0x0 .byte 0x66, 0x2e, 0x0f, 0x1f, 0x84, 0x0, 0x0, 0x0, 0x0, 0x0 # reg,reg .byte 0x0f, 0x19, 0xff .byte 0x0f, 0x1a, 0xff .byte 0x0f, 0x1b, 0xff .byte 0x0f, 0x1c, 0xff .byte 0x0f, 0x1d, 0xff .byte 0x0f, 0x1e, 0xff .byte 0x0f, 0x1f, 0xff # with base and imm8 .byte 0x0f, 0x19, 0x5A, 0x22 .byte 0x0f, 0x1c, 0x5A, 0x22 .byte 0x0f, 0x1d, 0x5A, 0x22 .byte 0x0f, 0x1e, 0x5A, 0x22 .byte 0x0f, 0x1f, 0x5A, 0x22 # with sib and imm32 .byte 0x0f, 0x19, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44 .byte 0x0f, 0x1c, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44 .byte 0x0f, 0x1d, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44 .byte 0x0f, 0x1e, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44 .byte 0x0f, 0x1f, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44 .byte 0x0f, 0x19, 0x04, 0x60 # .byte 0x0f, 0x1c, 0x04, 0x60 Now it became cldemote (%eax,%eiz,2) .byte 0x0f, 0x1d, 0x04, 0x60 .byte 0x0f, 0x1e, 0x04, 0x60 .byte 0x0f, 0x1f, 0x04, 0x60 .byte 0x0f, 0x19, 0x04, 0x59 # .byte 0x0f, 0x1c, 0x04, 0x59 Now it became cldemote (%eax,%ebx,2) .byte 0x0f, 0x1d, 0x04, 0x59 .byte 0x0f, 0x1e, 0x04, 0x59 .byte 0x0f, 0x1f, 0x04, 0x59 nop (%eax) nop %eax nop %ax nopl (%eax) nopw (%eax) nopl %eax nopw %ax