Temp nonsense

Source/DSPSpy/Makefile

@@ -31,10 +31,10 @@ INCLUDES	:=	include ../Core/Common .
 # options for code generation
 #---------------------------------------------------------------------------------
 
-CFLAGS	= -save-temps -O2 -Wall --no-strict-aliasing $(MACHDEP) $(INCLUDE)
+CFLAGS	= -gdwarf-4 -save-temps -O0 -Wall --no-strict-aliasing $(MACHDEP) $(INCLUDE)
 CXXFLAGS	=	-std=c++17 -Wno-register $(CFLAGS)
 
-LDFLAGS	=	-g $(MACHDEP) -Wl,-Map,$(notdir $@).map
+LDFLAGS	=	-g $(MACHDEP) -gdwarf-4 -Wl,-Map,$(notdir $@).map
 
 #---------------------------------------------------------------------------------
 # any extra libraries we wish to link with the project

Source/DSPSpy/dsp_interface.h

@@ -26,7 +26,7 @@ public:
   virtual void Reset() = 0;
   virtual u32 CheckMailTo() = 0;
   virtual void SendMailTo(u32 mail) = 0;
-  virtual void SetInterrupt() = 0;
+  virtual void SetInterrupt(bool value) = 0;
   virtual bool CheckInterrupt() = 0;
 
   // Yeah, yeah, having a method here makes this not a pure interface - but

Source/DSPSpy/main_spy.cpp

@@ -433,7 +433,7 @@ void handle_dsp_mail(void)
       else
       {
         const u32 now = gettick();
-        real_dsp.SetInterrupt();
+        real_dsp.SetInterrupt(true);
         u32 end = gettick();
         u32 tries = 0;
         while (real_dsp.CheckInterrupt() && end - now < 1000000)
@@ -451,6 +451,20 @@ void handle_dsp_mail(void)
         }
       }
     }
+    else if (mail == 0x88885370)
+    {
+      real_dsp.SetInterrupt(false);
+      real_dsp.SendMailTo(real_dsp.CheckInterrupt() ? 0x99995372 : 0x99995370);
+      while (real_dsp.CheckMailTo())
+        ;
+    }
+    else if (mail == 0x88885372)
+    {
+      real_dsp.SetInterrupt(true);
+      real_dsp.SendMailTo(real_dsp.CheckInterrupt() ? 0x99995372 : 0x99995370);
+      //while (real_dsp.CheckMailTo())
+      //  ;
+    }
 
     // SDK status mails
     /*

Source/DSPSpy/real_dsp.cpp

@@ -52,11 +52,11 @@ void RealDSP::SendMailTo(u32 mail)
   DSP_SendMailTo(mail);
 }
 
-void RealDSP::SetInterrupt()
+void RealDSP::SetInterrupt(bool value)
 {
   u32 level;
   _CPU_ISR_Disable(level);
-  _dspReg[5] = (_dspReg[5] & ~(DSPCR_AIINT | DSPCR_ARINT | DSPCR_DSPINT)) | DSPCR_PIINT;
+  _dspReg[5] = (_dspReg[5] & ~(DSPCR_AIINT | DSPCR_ARINT | DSPCR_DSPINT | DSPCR_PIINT)) | (value ? DSPCR_PIINT : 0);
   _CPU_ISR_Restore(level);
 }
 

Source/DSPSpy/real_dsp.h

@@ -12,6 +12,6 @@ public:
   void Reset() override;
   u32 CheckMailTo() override;
   void SendMailTo(u32 mail) override;
-  void SetInterrupt() override;
+  void SetInterrupt(bool value) override;
   bool CheckInterrupt() override;
 };

Source/DSPSpy/tests/dsp_test.ds

@@ -1,19 +1,25 @@
-incdir "tests"
+incdir  "tests"
 include "dsp_base.inc"
 
-;  Right here we are at a specific predetermined state.
-;  Ideal environment to try instructions.
-        
-;  We can call send_back at any time to send data back to the PowerPC.
-
 test_main:
-  lri $AC0.M, #0x1000
-  call send_back
+	CLR $ACC0
+	CLR $ACC1
 
-  set40
-  lri $AC0.M, #0x1000
-  set16
-  call send_back
+	LRIS $AX0.H, #1
+	CALL send_back
 
-; We're done, DO NOT DELETE THIS LINE
-  jmp end_of_test
+
+	JMP end_of_test
+
+external_irq:
+	INC $ACC0
+	; LRIS $AX0.H, #3
+	; CALL send_back
+	RTI
+
+; Expected output ($AX0.H (send_back num), $AC0.L (interrupt count), and $SR):
+; 1, 0, 3824 (start)
+; 3, 1, 2820 (in interrupt handler)
+; 2, 1, 3820 (back out of interrupt handler)
+; DSPSpy shows "interrupt after 20 ticks / 0 tries" (exact number of ticks varies)
+; ACC1 is 7bb40 or so (also varies, and can vary between steps 2 and 3 if the interrupt happens on the JZ)

Source/DSPSpy/tests/external_interrupt_status_bits.ds

@@ -0,0 +1,25 @@
+incdir  "tests"
+include "dsp_base.inc"
+
+test_main:
+	CLR $ACC0
+	CLR $ACC1
+
+	LRIS $AX0.H, #1
+	CALL send_back
+
+
+	JMP end_of_test
+
+external_irq:
+	INC $ACC0
+	; LRIS $AX0.H, #3
+	; CALL send_back
+	RTI
+
+; Expected output ($AX0.H (send_back num), $AC0.L (interrupt count), and $SR):
+; 1, 0, 3824 (start)
+; 3, 1, 2820 (in interrupt handler)
+; 2, 1, 3820 (back out of interrupt handler)
+; DSPSpy shows "interrupt after 20 ticks / 0 tries" (exact number of ticks varies)
+; ACC1 is 7bb40 or so (also varies, and can vary between steps 2 and 3 if the interrupt happens on the JZ)