IP2022 User’s Manual—Instruction Set Architecture www.ubicom.com 119 BREAK Enter Break Mode Operation: See text below Bits affected: None Opcode: 0000 0000 0000 0001 Description: This instruction enters the Break mode used for
software debugging. On entry into Break mode,
the   CPU   pipeline   is   flushed,   and   program
execution   stops   with   the   CPU   executing   a
continuous   series    of    nop   instructions.   The break  instruction  is  used  to  suspend  program execution at a specified point, so that the contents
of    registers    can   be    examined    through    the
debugging interface. Break mode can be exited
only  by  reset  or  debugging  commands  issued
through the ISD/ISP interface. See Chapter 1 for
more information about the debugging interface. Cycles: 1 Example: break Enter break mode. Not useful except when using
a debugger.