\xd5\xcd\x03\x800\x01v\xfe (\x05\xe60\x04\xb0\x18A
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,$+3 ;0004 30 01 0 . HALT ;0006 76 V CP 00AH ;0007 FE 0A . . JR Z,$+7 ;0009 28 05 ( . AND 030H ;000B E6 30 . 0 INC B ;000D 04 . OR B ;000E B0 . JR $+67 ;000F 18 41 . A