\xcd\x03\x80\xd6S(\x02>\x06\xce1\xffv
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H CALL 08003H ;0000 CD 03 80 . . . SUB 053H ;0003 D6 53 . S JR Z,$+4 ;0005 28 02 ( . LD A,006H ;0007 3E 06 > . ADC A,031H ;0009 CE 31 . 1 RST 38H ;000B FF . HALT ;000C 76 V