1 .*: Assembler messages: 2 .*:3: Error: unknown pseudo-op: `.code64' 3 .*:4: Error: `movabs' is only supported in 64-bit mode 4 .*:5: Error: `movabs' is only supported in 64-bit mode 5 GAS LISTING .* 6 7 8 [ ]*1[ ]+\.include "code64\.s" 9 [ ]*1[ ]+\.text 10 [ ]*2[ ]+_start: 11 [ ]*3[ ]+\.code64 12 [ ]*4[ ]+movabs 0x87654321, %al 13 [ ]*5[ ]+movabs \$0x87654321, %rax 14