Breakpoint.md

Rocket/rocket/Breakpoint

Breakpoint unit.

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class BPControl

Definitions of the breakpoint trigger control (tdata1, mcontrol).

• Field definition

name	type	description
ttype	UInt	trigger type (currently fixed to address/data match)
dmode	Bool	whether M can write trigger data (0 for yes)
maskmax	UInt	address alignment used in match
action	Bool	action when trigger matches (incompliant)
chain	Bool	match triggers sequentially
tmatch	UInt	match mode (incompliant)
m	Bool	enable this trigger in M
h	Bool	enable this trigger in H
s	Bool	enable this trigger in S
u	Bool	enable this trigger in U
x	Bool	fire this trigger on EX
w	Bool	fire this trigger on store
r	Bool	fire this trigger on load

class BreakpointUnit

Breakpoint unit

• I/O, type and parameters

name	type	direction	description
p	Parameters	param	configuration
status	MStatus	I	system status
bp	Vec[BP]	I	breakpoint configuration from CSR
pc	UInt	I	pc from IF
ea	UInt	I	load/store address
xcpt_if	Bool	O	breakpoint triggered from mtaching pc
xcpt_ld	Bool	O	breakpoint triggered from load addr
xcpt_st	Bool	O	breakpoint triggered from store addr
debug_if	Bool	O	debug action for IF
debug_ld	Bool	O	debug action for load
debug_st	Bool	O	debug action for store

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