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Debugger: Add IRQ support to LBR and new command to Break on Interrupt (#987, PR #990)

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Extend LBR so that it includes the control-flow on a taken interrupt
Add a new command 'brkint <0|1>' to support Break on Interrupt

Internal: in core emulation loop, moved IRQ/NMI check to start of loop so that just the "interrupt vectoring" case can be single-stepped (instead of previously opcode + interrupt vector).

Debugger help chm: update Breakpoints section to include BRK, BRKOP and BRKINT
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TomCh
2021-10-16 16:57:00 +01:00
committed by GitHub
parent 4f8b30506d
commit 9553106f4e
10 changed files with 173 additions and 78 deletions
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source/Debugger/Debugger_Commands.cpp
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@@ -80,6 +80,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// Breakpoints
{TEXT("BRK") , CmdBreakInvalid , CMD_BREAK_INVALID , "Enter debugger on BRK or INVALID" },
{TEXT("BRKOP") , CmdBreakOpcode , CMD_BREAK_OPCODE , "Enter debugger on opcode" },
{TEXT("BRKINT") , CmdBreakOnInterrupt , CMD_BREAK_ON_INTERRUPT , "Enter debugger on interrupt" },
{TEXT("BP") , CmdBreakpoint , CMD_BREAKPOINT , "Alias for BPR (Breakpoint Register Add)" },
{TEXT("BPA") , CmdBreakpointAddSmart, CMD_BREAKPOINT_ADD_SMART , "Add (smart) breakpoint" },
// {TEXT("BPP") , CmdBreakpointAddFlag , CMD_BREAKPOINT_ADD_FLAG , "Add breakpoint on flags" },