\x00\xcd\x03\x800\x01v\xd5F%\xfe 8\x0c(\x0b~\xb0 \x04\x0cy\xf60w\xc3eu
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H NOP ;0000 00 . CALL 08003H ;0001 CD 03 80 . . . JR NC,$+3 ;0004 30 01 0 . HALT ;0006 76 V PUSH DE ;0007 D5 . LD B,(HL) ;0008 46 F DEC H ;0009 25 % CP 020H ;000A FE 20 . JR C,$+14 ;000C 38 0C 8 . JR Z,$+13 ;000E 28 0B ( . LD A,(HL) ;0010 7E ~ OR B ;0011 B0 . JR NZ,$+6 ;0012 20 04 . INC C ;0014 0C . LD A,C ;0015 79 Y OR 030H ;0016 F6 30 . 0 LD (HL),A ;0018 77 W JP 07565H ;0019 C3 65 75 . E U