\xcd\x03\x80\xd8\xfe \x05\xb80\x01O\xc7G8\x07\xcbi(\x03y\xffxL\xff\xc7v
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 . . . RET C ;0003 D8 . CP 020H ;0004 FE 20 . JR NZ,$+7 ;0006 20 05 . CP B ;0008 B8 . JR NC,$+3 ;0009 30 01 0 . LD C,A ;000B 4F O RST 0 ;000C C7 . LD B,A ;000D 47 G JR C,$+9 ;000E 38 07 8 . BIT 5,C ;0010 CB 69 . I JR Z,$+5 ;0012 28 03 ( . LD A,C ;0014 79 Y RST 38H ;0015 FF . LD A,B ;0016 78 X LD C,H ;0017 4C L RST 38H ;0018 FF . RST 0 ;0019 C7 . HALT ;001A 76 V