User guide

144 CHAPTER 7. THE DEBUGGER
clock device) interfere with single ste ppi ng of Cintcode instructions, the K command is
provided to turn clock interrupts on and off. The address of the task control block of
the currently selected task is gi ven by W. Thus the first locations of the control block
can be printed by t he command Wt10.
The debugger prompt contains a letter indicating whether the next instruct i on is
toe executed in u se r mode (a), in kernel mode (k) or within the interrupt service routine
(i). It also contains a number indicating which user task was running.