JBug11
Motorola/Freescale 68HC11 Monitor/Debugger
JBug11 is a monitor and debugger for developing assembly language programs on the Motorola 68HC11 series of micro-controllers (MCU). It is designed to be used on a personal computer running one of the Microsoft Win32 operating systems, and to communicate with the micro-controller under test by means of an RS232 serial link from one of the PC’s serial communications ports.