diff '--context=5' -r vecx-SDL2/src/main.c vecx-SDL2-mouse/src/main.c
*** vecx-SDL2/src/main.c	2020-05-04 16:10:52.351389842 -0500
--- vecx-SDL2-mouse/src/main.c	2021-01-30 22:44:31.189156765 -0600
***************
*** 174,183 ****
--- 174,189 ----
  			case SDLK_ESCAPE: return 1;
  			case SDLK_a: vecx_input(&vectrex, VECTREX_PAD1_BUTTON1, 1); break;
  			case SDLK_s: vecx_input(&vectrex, VECTREX_PAD1_BUTTON2, 1); break;
  			case SDLK_d: vecx_input(&vectrex, VECTREX_PAD1_BUTTON3, 1); break;
  			case SDLK_f: vecx_input(&vectrex, VECTREX_PAD1_BUTTON4, 1); break;
+ 
+ 			case SDLK_z: vecx_input(&vectrex, VECTREX_PAD2_BUTTON1, 1); break;
+ 			case SDLK_x: vecx_input(&vectrex, VECTREX_PAD2_BUTTON2, 1); break;
+ 			case SDLK_c: vecx_input(&vectrex, VECTREX_PAD2_BUTTON3, 1); break;
+ 			case SDLK_v: vecx_input(&vectrex, VECTREX_PAD2_BUTTON4, 1); break;
+ 
  			case SDLK_LEFT: vecx_input(&vectrex, VECTREX_PAD1_X, 0x00); break;
  			case SDLK_RIGHT: vecx_input(&vectrex, VECTREX_PAD1_X, 0xff); break;
  			case SDLK_UP: vecx_input(&vectrex, VECTREX_PAD1_Y, 0xff); break;
  			case SDLK_DOWN: vecx_input(&vectrex, VECTREX_PAD1_Y, 0x00); break;
  			}
***************
*** 191,213 ****
--- 197,245 ----
  
  			case SDLK_a: vecx_input(&vectrex, VECTREX_PAD1_BUTTON1, 0); break;
  			case SDLK_s: vecx_input(&vectrex, VECTREX_PAD1_BUTTON2, 0); break;
  			case SDLK_d: vecx_input(&vectrex, VECTREX_PAD1_BUTTON3, 0); break;
  			case SDLK_f: vecx_input(&vectrex, VECTREX_PAD1_BUTTON4, 0); break;
+ 
+ 			case SDLK_z: vecx_input(&vectrex, VECTREX_PAD2_BUTTON1, 0); break;
+ 			case SDLK_x: vecx_input(&vectrex, VECTREX_PAD2_BUTTON2, 0); break;
+ 			case SDLK_c: vecx_input(&vectrex, VECTREX_PAD2_BUTTON3, 0); break;
+ 			case SDLK_v: vecx_input(&vectrex, VECTREX_PAD2_BUTTON4, 0); break;
+ 
  			case SDLK_LEFT: vecx_input(&vectrex, VECTREX_PAD1_X, 0x80); break;
  			case SDLK_RIGHT: vecx_input(&vectrex, VECTREX_PAD1_X, 0x80); break;
  			case SDLK_UP: vecx_input(&vectrex, VECTREX_PAD1_Y, 0x80); break;
  			case SDLK_DOWN: vecx_input(&vectrex, VECTREX_PAD1_Y, 0x80); break;
  			}
  			break;
+                 case SDL_MOUSEBUTTONDOWN:
+                         if (SDL_GetMouseState(NULL,NULL)&SDL_BUTTON(1)) {
+                           vecx_input(&vectrex, VECTREX_PAD1_BUTTON4, 1);
+                         }
+                         if (SDL_GetMouseState(NULL,NULL)&SDL_BUTTON(3)) {
+                           vecx_input(&vectrex, VECTREX_PAD1_BUTTON3, 1);
+                         }
+                         break;
+                 case SDL_MOUSEBUTTONUP:
+                         if ((SDL_GetMouseState(NULL,NULL)&SDL_BUTTON(1)) == 0) {
+                           vecx_input(&vectrex, VECTREX_PAD1_BUTTON4, 0);
+                         }
+                         if ((SDL_GetMouseState(NULL,NULL)&SDL_BUTTON(3)) == 0) {
+                           vecx_input(&vectrex, VECTREX_PAD1_BUTTON3, 0);
+                         }
+                         break;
  		}
  	}
  	return 0;
  }
  
  static void emuloop(void)
  {
+         //static char coords[32];
+         static int width, height, XL, YB;
+         static int VecAnalogX, VecAnalogY;
+         static int xMouse, yMouse;
  	Uint32 next_time = SDL_GetTicks() + EMU_TIMER;
  	vecx_reset(&vectrex);
  	for (;;)
  	{
  		vecx_emu(&vectrex, (VECTREX_MHZ / 1000) * EMU_TIMER);
***************
*** 219,228 ****
--- 251,286 ----
  				SDL_Delay(next_time - now);
  			else
  				next_time = now;
  			next_time += EMU_TIMER;
  		}
+                 SDL_GetWindowPosition(window, &XL, &YB);
+                 SDL_GetWindowSize(window, &width, &height);
+                 SDL_GetGlobalMouseState(&xMouse,&yMouse);
+                 if (xMouse < XL ||
+                     xMouse >= XL+width ||
+                     yMouse < YB ||
+                     yMouse >= YB+height) {
+                   // Not in our window
+                   SDL_ShowCursor(SDL_ENABLE);
+                 } else {
+                   // hide cursor when in our window.
+                   // return XY in terms of -128:127
+                   SDL_ShowCursor(SDL_DISABLE);
+                   xMouse -= XL; yMouse -= YB; // now in range 0:width-1, 0:height-1
+                   VecAnalogX = (xMouse*255)/(width); // range 0:255
+                   if (VecAnalogX < 0) VecAnalogX = 0;
+                   if (VecAnalogX > 255) VecAnalogX = 255;
+                   VecAnalogY = (yMouse*255)/(height); // range 0:255
+                   if (VecAnalogY < 0) VecAnalogY = 0;
+                   if (VecAnalogY > 255) VecAnalogY = 255;
+                   VecAnalogY = 255-VecAnalogY; // invert y
+                   //sprintf(coords, "%d %d", VecAnalogX, VecAnalogY);
+ 		  vecx_input(&vectrex, VECTREX_PAD1_X, (uint8_t)VecAnalogX);
+ 	          vecx_input(&vectrex, VECTREX_PAD1_Y, (uint8_t)VecAnalogY);
+                 }
+                 //SDL_SetWindowTitle(window, coords);
  	}
  }
  
  static void load_overlay()
  {