./travis/test/ret.asm:26: error: instruction not supported in 16-bit mode
./travis/test/ret.asm:27: error: instruction not supported in 16-bit mode
./travis/test/ret.asm:28: error: instruction not supported in 16-bit mode
./travis/test/ret.asm:29: error: invalid operands in 16-bit mode
./travis/test/ret.asm:30: error: invalid operands in 16-bit mode
./travis/test/ret.asm:31: error: invalid operands in 16-bit mode
