Extend qtmips_cli to recognize break and report final state.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

2 files changed, 12 insertions, 0 deletions

diff --git a/qtmips_machine/qtmipsmachine.cpp b/qtmips_machine/qtmipsmachine.cpp
index e047167..35843f4 100644
--- a/qtmips_machine/qtmipsmachine.cpp
+++ b/qtmips_machine/qtmipsmachine.cpp
@@ -332,3 +332,14 @@ bool QtMipsMachine::get_step_over_exception(enum ExceptionCause excause) const {
         return cr->get_step_over_exception(excause);
     return false;
 }
+
+enum ExceptionCause QtMipsMachine::get_exception_cause() const {
+    std::uint32_t val;
+    if (cop0st == nullptr)
+        return EXCAUSE_NONE;
+    val = (cop0st->read_cop0reg(Cop0State::Cause) >> 2) & 0x3f;
+    if (val == 0)
+        return EXCAUSE_INT;
+    else
+        return (ExceptionCause)val;
+}
diff --git a/qtmips_machine/qtmipsmachine.h b/qtmips_machine/qtmipsmachine.h
index b90b96e..5cb4100 100644
--- a/qtmips_machine/qtmipsmachine.h
+++ b/qtmips_machine/qtmipsmachine.h
@@ -97,6 +97,7 @@ public:
     bool get_stop_on_exception(enum ExceptionCause excause) const;
     void set_step_over_exception(enum ExceptionCause excause, bool value);
     bool get_step_over_exception(enum ExceptionCause excause) const;
+    enum ExceptionCause get_exception_cause() const;
 
 public slots:
     void play();