\x01 dS\g\xcd\x03\x80\x910\xf7z\x84'\xf60\xff\x91Tgy\xff\x10\xf3v
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H LD BC,06420H ;0000 01 20 64 . D LD D,E ;0003 53 S LD E,H ;0004 5C \ LD H,A ;0005 67 G CALL 08003H ;0006 CD 03 80 . . . SUB C ;0009 91 . JR NC,$-7 ;000A 30 F7 0 . LD A,D ;000C 7A Z ADD A,H ;000D 84 . DAA ;000E 27 ' OR 030H ;000F F6 30 . 0 RST 38H ;0011 FF . SUB C ;0012 91 . LD D,H ;0013 54 T LD H,A ;0014 67 G LD A,C ;0015 79 Y RST 38H ;0016 FF . DJNZ $-11 ;0017 10 F3 . . HALT ;0019 76 V