0\x01v\xd5\xcd\x03\x80oN\x00
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H JR NC,$+3 ;0000 30 01 0 . HALT ;0002 76 V PUSH DE ;0003 D5 . CALL 08003H ;0004 CD 03 80 . . . LD L,A ;0007 6F O LD C,(HL) ;0008 4E N NOP ;0009 00 . LD A,(BC) ;000A 0A .