\xcd\x03\x800\x01v_\x92(\x0d\x0e+0\x04\x0e-\xedDGy\xff\x10\xfdS>.\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,$+3 ;0003 30 01 0 . HALT ;0005 76 V LD E,A ;0006 5F _ SUB D ;0007 92 . JR Z,$+15 ;0008 28 0D ( . LD C,02BH ;000A 0E 2B . + JR NC,$+6 ;000C 30 04 0 . LD C,02DH ;000E 0E 2D . - NEG ;0010 ED 44 . D LD B,A ;0012 47 G LD A,C ;0013 79 Y RST 38H ;0014 FF . DJNZ $-1 ;0015 10 FD . . LD D,E ;0017 53 S LD A,02EH ;0018 3E 2E > . PUSH HL ;001A E5 .