.*: Assembler messages: .*:6: Warning: instruction length.* .*:7: Warning: instruction length.* .*:8: Warning: instruction length.* .*:10: Warning: instruction length.* .*:11: Warning: instruction length.* GAS LISTING .* [ ]*1[ ]+\.text [ ]*2[ ]+\.intel_syntax noprefix [ ]*3[ ]+\.code16 [ ]*4[ ]+ [ ]*5[ ]+long16: [ ]*6[ ]+0000 26678FEA[ ]+lwpins eax, es:\[eax\*8\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*6[ ]+781204C5[ ]* [ ]*6[ ]+00000000[ ]* [ ]*6[ ]+44332211[ ]* [ ]*7[ ]+0010 26678FEA[ ]+lwpval eax, es:\[eax\*4\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*7[ ]+78120C85[ ]* [ ]*7[ ]+00000000[ ]* [ ]*7[ ]+44332211[ ]* [ ]*8[ ]+0020 26678FEA[ ]+bextr eax, es:\[eax\*2\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*8[ ]+78100445[ ]* [ ]*8[ ]+00000000[ ]* [ ]*8[ ]+44332211[ ]* [ ]*9[ ]+ [ ]*10[ ]+0030 266766F2[ ]+xacquire lock add dword ptr es:\[eax\*2\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*10[ ]+F0810445[ ]* [ ]*10[ ]+00000000[ ]* [ ]*10[ ]+44332211[ ]* [ ]*11[ ]+0040 266766F3[ ]+xrelease lock sub dword ptr es:\[eax\*2\], 0x11223344 \*\*\*\* Warning: instruction length of 16 bytes exceeds the limit of 15 [ ]*11[ ]+F0812C45[ ]* [ ]*11[ ]+00000000[ ]* [ ]*11[ ]+44332211[ ]* #pass