GE 68K System manual Breakpoint Commands

68K System Monitor

User's GuideGE Energy Services

Breakpoint Commands

Description	Use these commands with the 68K Monitor for control and display of process
	breakpoints in the system.

The three restrictions with the definition of breakpoints are:

•You must define breakpoints in code that is in RAM.

−The program instruction changes to a 68000 family TRAP instruction.

•You must define all program breakpoints at the beginning of an instruction.

•Only define breakpoints in a process.

−If the interrupt mask is non-zero when you enter the breakpoint handler, the assumption is that the calling routine is an interrupt service procedure (ISP) and breakpoints are not valid.

	Note:	Diagnostic Commands are suspended in order to use breakpoints.
List of	This list shows the Breakpoint commands, in alphabetical order:
Commands
	Command		Description	See Page
		CB	Clear Breakpoint	3-9
		DB	Define Breakpoint	3-21
		PB	Print Breakpoint	3-46
		RB	Resume Breakpoint	3-54
		SB	Step Breakpoint	3-68

General SWM0023-1.00 -2

Full Release 2-7