qtmips_cli: add option to report number of required cycles and stalls.

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

5 files changed, 22 insertions, 3 deletions

diff --git a/qtmips_cli/main.cpp b/qtmips_cli/main.cpp
index e80670b..82296ed 100644
--- a/qtmips_cli/main.cpp
+++ b/qtmips_cli/main.cpp
@@ -65,6 +65,7 @@ void create_parser(QCommandLineParser &p) {
     p.addOption({{"trace-hi", "tr-hi"}, "Print HI register changes."});
     p.addOption({{"dump-registers", "d-regs"}, "Dump registers state at program exit."});
     p.addOption({"dump-cache-stats", "Dump cache statistics at program exit."});
+    p.addOption({"dump-cycles", "Dump number of CPU cycles till program end."});
     p.addOption({"dump-range", "Dump memory range.", "START,LENGTH,FNAME"});
     p.addOption({"load-range", "Load memory range.", "START,FNAME"});
     p.addOption({"expect-fail", "Expect that program causes CPU trap and fail if it doesn't."});
@@ -200,6 +201,8 @@ void configure_reporter(QCommandLineParser &p, Reporter &r, const SymbolTable *s
         r.regs();
     if (p.isSet("dump-cache-stats"))
         r.cache_stats();
+    if (p.isSet("dump-cycles"))
+        r.cycles();
 
     QStringList fail = p.values("fail-match");
     for (int i = 0; i < fail.size(); i++) {
diff --git a/qtmips_cli/reporter.cpp b/qtmips_cli/reporter.cpp
index 74cbdc1..75d889b 100644
--- a/qtmips_cli/reporter.cpp
+++ b/qtmips_cli/reporter.cpp
@@ -53,6 +53,7 @@ Reporter::Reporter(QCoreApplication *app, QtMipsMachine *machine) : QObject() {
 
     e_regs = false;
     e_cache_stats = false;
+    e_cycles = false;
     e_fail = (enum FailReason)0;
 }
 
@@ -64,6 +65,10 @@ void Reporter::cache_stats() {
     e_cache_stats = true;
 }
 
+void Reporter::cycles() {
+    e_cycles = true;
+}
+
 void Reporter::expect_fail(enum FailReason reason) {
     e_fail = (enum FailReason)(e_fail | reason);
 }
@@ -194,6 +199,10 @@ void Reporter::report() {
         cout << "d-cache:stalled-cycles:" << machine->cache_data()->stalled_cycles() << endl;
         cout << "d-cache:improved-speed:" << machine->cache_data()->speed_improvement() << endl;
     }
+    if (e_cycles) {
+        cout << "cycles:" << machine->core()->cycles() << endl;
+        cout << "stalls:" << machine->core()->stalls() << endl;
+    }
     foreach (DumpRange range, dump_ranges) {
         ofstream out;
         out.open(range.fname.toLocal8Bit().data(), ios::out | ios::trunc);
diff --git a/qtmips_cli/reporter.h b/qtmips_cli/reporter.h
index 5359908..bc223cb 100644
--- a/qtmips_cli/reporter.h
+++ b/qtmips_cli/reporter.h
@@ -49,6 +49,7 @@ public:
 
     void regs(); // Report status of registers
     void cache_stats();
+    void cycles();
 
     enum FailReason {
         FR_I = (1<<0), // Unsupported Instruction
@@ -78,6 +79,7 @@ private:
 
     bool e_regs;
     bool e_cache_stats;
+    bool e_cycles;
     enum FailReason e_fail;
 
     void report();
diff --git a/qtmips_machine/core.cpp b/qtmips_machine/core.cpp
index 88b2fe2..96ae0ad 100644
--- a/qtmips_machine/core.cpp
+++ b/qtmips_machine/core.cpp
@@ -72,10 +72,14 @@ void Core::reset() {
     do_reset();
 }
 
-unsigned Core::cycles() {
+unsigned Core::cycles() const {
     return cycle_c;
 }
 
+unsigned Core::stalls() const {
+    return stall_c;
+}
+
 Registers *Core::get_regs() {
     return regs;
 }
@@ -935,7 +939,7 @@ bool StopExceptionHandler::handle_exception(Core *core, Registers *regs,
            (unsigned long)regs->read_pc(), (unsigned long)mem_ref_addr);
 #else
     (void)excause; (void)inst_addr; (void)next_addr; (void)mem_ref_addr; (void)regs;
-    (void)jump_branch_pc; (void)in_delay_slot;
+    (void)jump_branch_pc; (void)in_delay_slot, (void)core;
 #endif
     return true;
 };
diff --git a/qtmips_machine/core.h b/qtmips_machine/core.h
index ff589c5..fd15315 100644
--- a/qtmips_machine/core.h
+++ b/qtmips_machine/core.h
@@ -76,7 +76,8 @@ public:
     void step(bool skip_break = false); // Do single step
     void reset(); // Reset core (only core, memory and registers has to be reseted separately)
 
-    unsigned cycles(); // Returns number of executed cycles
+    unsigned cycles() const; // Returns number of executed cycles
+    unsigned stalls() const; // Returns number of stall cycles
 
     Registers *get_regs();
     Cop0State *get_cop0state();