Y\x15\xcd\x03\x808\x08\xd6 8\xf5\x12\x1c\x18\xf3\xaf%\xdfq\xc6 \xff\x18\xf7\xb6\xc0$,\xb6\xc0--\xb6\xc0,$\xb6\xc0v
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H LD E,C ;0000 59 Y DEC D ;0001 15 . CALL 08003H ;0002 CD 03 80 . . . JR C,$+10 ;0005 38 08 8 . SUB 020H ;0007 D6 20 . JR C,$-9 ;0009 38 F5 8 . LD (DE),A ;000B 12 . INC E ;000C 1C . JR $-11 ;000D 18 F3 . . XOR A ;000F AF . DEC H ;0010 25 % RST 18H ;0011 DF . LD (HL),C ;0012 71 Q ADD A,020H ;0013 C6 20 . RST 38H ;0015 FF . JR $-7 ;0016 18 F7 . . OR (HL) ;0018 B6 . RET NZ ;0019 C0 . INC H ;001A 24 $ INC L ;001B 2C , OR (HL) ;001C B6 . RET NZ ;001D C0 . DEC L ;001E 2D - DEC L ;001F 2D - OR (HL) ;0020 B6 . RET NZ ;0021 C0 . INC L ;0022 2C , INC H ;0023 24 $ OR (HL) ;0024 B6 . RET NZ ;0025 C0 . HALT ;0026 76 V