* [ECOS] How does breakpoint setted on GDB operates on mpc860 module?
@ 2001-06-18 20:51 Tony Ko
2001-06-19 1:02 ` Jesper Skov
0 siblings, 1 reply; 2+ messages in thread
From: Tony Ko @ 2001-06-18 20:51 UTC (permalink / raw)
To: ecos-discuss
hi.
I know GDB use software breakpoint.
What operation happens in mpc860 when setting of breakpoint by
software ?
I mean what register is used for setting instruction breakpoint or
something else?
thank you.
Nohee Ko
Staff Engineer, SI Hardware
www.gctsemi.com
Tel. 82-2-2167-1283
Fax. 82-2-2167-1290
Mobile : 016-368-7742
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] How does breakpoint setted on GDB operates on mpc860 module?
2001-06-18 20:51 [ECOS] How does breakpoint setted on GDB operates on mpc860 module? Tony Ko
@ 2001-06-19 1:02 ` Jesper Skov
0 siblings, 0 replies; 2+ messages in thread
From: Jesper Skov @ 2001-06-19 1:02 UTC (permalink / raw)
To: Tony Ko; +Cc: ecos-discuss
>>>>> "Tony" == Tony Ko <nhko@gctsemi.com> writes:
Tony> hi. I know GDB use software breakpoint. What operation happens
Tony> in mpc860 when setting of breakpoint by software ?
Nothing happens. GDB sets a break instruction in the code
stream. Eventually the CPU hits it.
Tony> I mean what register is used for setting instruction breakpoint
Tony> or something else?
None. A trap instruction is used.
Jesper
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2001-06-18 20:51 [ECOS] How does breakpoint setted on GDB operates on mpc860 module? Tony Ko
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