\xd5\xcd\x03\x800\x01v\xfe-(\xf6
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H PUSH DE ;0000 D5 . CALL 08003H ;0001 CD 03 80 . . . JR NC,$+3 ;0004 30 01 0 . HALT ;0006 76 V CP 02DH ;0007 FE 2D . - JR Z,$-8 ;0009 28 F6 ( .