Debugger: add red 'IRQ' after the v/h-pos when IRQ is being asserted to the 6502

source/CPU.cpp

@@ -193,6 +193,11 @@ void SetActiveCpu(eCpuType cpu)
 	g_ActiveCPU = cpu;
 }
 
+bool IsIrqAsserted(void)
+{
+	return g_bmIRQ ? true : false;
+}
+
 bool Is6502InterruptEnabled(void)
 {
 	return !(regs.ps & AF_INTERRUPT);

source/CPU.h

@@ -44,5 +44,6 @@ void     SetMainCpuDefault(eApple2Type apple2Type);
 eCpuType GetActiveCpu(void);
 void     SetActiveCpu(eCpuType cpu);
 
+bool IsIrqAsserted(void);
 bool Is6502InterruptEnabled(void);
 void ResetCyclesExecutedForDebugger(void);

source/Debugger/Debugger_Color.cpp

@@ -134,6 +134,9 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 		W8,   // FG_VIDEOSCANNER_TITLE
 		Y8,   // FG_VIDEOSCANNER_INVISIBLE
 		G8,   // FG_VIDEOSCANNER_VISIBLE
+
+		C3,   // BG_IRQ_TITLE
+		R8,   // FG_IRQ_TITLE
 	};
 
 

source/Debugger/Debugger_Color.h

@@ -129,6 +129,9 @@
 		, FG_VIDEOSCANNER_INVISIBLE	// yellow
 		, FG_VIDEOSCANNER_VISIBLE	// green
 
+		, BG_IRQ_TITLE
+		, FG_IRQ_TITLE		// red
+
 		, NUM_DEBUG_COLORS
 	};
 

source/Debugger/Debugger_Display.cpp

@@ -174,6 +174,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 		const int INFO_COL_3 = (63 * 7); // nFontWidth
 		const int DISPLAY_MINIMEM_COLUMN = INFO_COL_3;
 		const int DISPLAY_VIDEO_SCANNER_COLUMN = INFO_COL_3;
+		const int DISPLAY_IRQ_COLUMN = INFO_COL_3 + (12 * 7); // (12 chars from v/h-pos) * nFontWidth
 #else
 		const int DISPLAY_CPU_INFO_LEFT_COLUMN = SCREENSPLIT1;	// TC: SCREENSPLIT1 is not defined anywhere in the .sln!
 
@@ -3748,7 +3749,33 @@ void DrawSubWindow_Data (Update_t bUpdate)
 }
 
 //===========================================================================
-void DrawVideoScannerValue(int line, int vert, int horz, bool isVisible)
+static void DrawIRQInfo(int line)
+{
+	if (!((g_iWindowThis == WINDOW_CODE) || ((g_iWindowThis == WINDOW_DATA))))
+		return;
+
+	const int nFontWidth = g_aFontConfig[FONT_INFO]._nFontWidthAvg;
+
+	const int nameWidth = 3;	// 3 chars
+	const int totalWidth = nameWidth;
+
+	RECT rect;
+	rect.top = line * g_nFontHeight;
+	rect.bottom = rect.top + g_nFontHeight;
+	rect.left = DISPLAY_IRQ_COLUMN;
+	rect.right = rect.left + (totalWidth * nFontWidth);
+
+	DebuggerSetColorBG(DebuggerGetColor(BG_IRQ_TITLE));
+	DebuggerSetColorFG(DebuggerGetColor(FG_IRQ_TITLE));
+
+	if (IsIrqAsserted())
+		PrintText("IRQ", rect);
+	else
+		PrintText("   ", rect);
+}
+
+//===========================================================================
+static void DrawVideoScannerValue(int line, int vert, int horz, bool isVisible)
 {
 	if (!((g_iWindowThis == WINDOW_CODE) || ((g_iWindowThis == WINDOW_DATA))))
 		return;
@@ -3784,7 +3811,7 @@ void DrawVideoScannerValue(int line, int vert, int horz, bool isVisible)
 			sprintf_s(sValue, sizeof(sValue), "%03X", nValue);
 
 		if (!isVisible)
-			DebuggerSetColorFG(DebuggerGetColor(FG_VIDEOSCANNER_INVISIBLE));	// red
+			DebuggerSetColorFG(DebuggerGetColor(FG_VIDEOSCANNER_INVISIBLE));	// yellow
 		else
 			DebuggerSetColorFG(DebuggerGetColor(FG_VIDEOSCANNER_VISIBLE));		// green
 		PrintText(sValue, rect);
@@ -3793,8 +3820,7 @@ void DrawVideoScannerValue(int line, int vert, int horz, bool isVisible)
 }
 
 //===========================================================================
-
-void DrawVideoScannerInfo (int line)
+static void DrawVideoScannerInfo(int line)
 {
 	NTSC_VideoGetScannerAddressForDebugger();		// update g_nVideoClockHorz/g_nVideoClockVert
 
@@ -3872,6 +3898,8 @@ void DrawSubWindow_Info ( Update_t bUpdate, int iWindow )
 		if (bUpdate & UPDATE_VIDEOSCANNER)
 			DrawVideoScannerInfo(yBeam);
 
+		DrawIRQInfo(yBeam);
+
 		if ((bUpdate & UPDATE_REGS) || (bUpdate & UPDATE_FLAGS))
 			DrawRegisters( yRegs );