\xcd\x03\x800\x01v\xfe (\x05\xb88\xf3\x06/\x04\xe5
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 . . . JR NC,$+3 ;0003 30 01 0 . HALT ;0005 76 V CP 00AH ;0006 FE 0A . . JR Z,$+7 ;0008 28 05 ( . CP B ;000A B8 . JR C,$-11 ;000B 38 F3 8 . LD B,02FH ;000D 06 2F . / INC B ;000F 04 . PUSH HL ;0010 E5 .