.*: Assembler messages:
.*: Error: illegal operands `cv.extract x32,x32,20,20'
.*: Error: illegal operands `cv.extract x33,x33,20,20'
.*: Error: illegal operands `cv.extract x6,x7,0,32'
.*: Error: illegal operands `cv.extract x6,x7,32,0'
.*: Error: illegal operands `cv.extract x6,x7,0,-1'
.*: Error: illegal operands `cv.extract x6,x7,-1,0'
