\xe5\xcd\x03\x80\xfe0 \x01v\x08\xb7\xc8
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H PUSH HL ;0000 E5 . CALL 08003H ;0001 CD 03 80 . . . CP 030H ;0004 FE 30 . 0 JR NZ,$+3 ;0006 20 01 . HALT ;0008 76 V EX AF,AF' ;0009 08 . OR A ;000A B7 . RET Z ;000B C8 .