\x1b\xbe\x12 \x01X\xcd\x03\x800\xf5\x0d\x06\xff\x05 \xbe \x01v0\xf7~\xe5
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
ORG 00000H LD A,(BC) ;0000 0A . DEC DE ;0001 1B . CP (HL) ;0002 BE . LD (DE),A ;0003 12 . JR NZ,$+3 ;0004 20 01 . LD E,B ;0006 58 X CALL 08003H ;0007 CD 03 80 . . . JR NC,$-9 ;000A 30 F5 0 . DEC C ;000C 0D . LD B,0FFH ;000D 06 FF . . DEC B ;000F 05 . LD A,(BC) ;0010 0A . CP (HL) ;0011 BE . JR NZ,$+3 ;0012 20 01 . HALT ;0014 76 V JR NC,$-7 ;0015 30 F7 0 . LD A,(HL) ;0017 7E ~ PUSH HL ;0018 E5 .