\xcd\x03\x80\xf50\xfa\xeb+~+\xcd\x00\x80\xfe (\xf50\xf4v
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 . . . PUSH AF ;0003 F5 . JR NC,$-4 ;0004 30 FA 0 . EX DE,HL ;0006 EB . DEC HL ;0007 2B + LD A,(HL) ;0008 7E ~ DEC HL ;0009 2B + CALL 08000H ;000A CD 00 80 . . . CP 00AH ;000D FE 0A . . JR Z,$-9 ;000F 28 F5 ( . JR NC,$-10 ;0011 30 F4 0 . HALT ;0013 76 V