iod work in progress

Author: Pyrix25633

include/risc.hpp

@@ -463,6 +463,10 @@ class InputOutputDevices {
  * @param pSB System bus pointer
  */
  InputOutputDevices(SystemBus* pSB);
+ void input(Uint8 i);
+ void operate();
  private:
  SystemBus* SB; //System Bus pointer
+ Uint8 key;
+ string line0, line1, line2, line3;
 };

res/img/iod_gui.png

@@ -31,6 +31,7 @@ int main(int argc, char* args[]) {
  Uint16 cellsStartAddress = 0x0; //For CM rendering
  bool clicked = false, refresh = true, constantRefresh = false;
  bool fullInstruction = false, constantFullInstruction = false, progressBarAll = false;
+ Uint8 key; //For keyboard input
 
  //Interpreter
  SystemBus SB;
@@ -70,6 +71,7 @@ int main(int argc, char* args[]) {
  SDL_Texture* fontTexture = Window.loadTexture("res/img/font.png");
  SDL_Texture* cpuGuiTexture = Window.loadTexture("res/img/cpu_gui.png");
  SDL_Texture* cmGuiTexture = Window.loadTexture("res/img/cm_gui.png");
+ SDL_Texture* iodGuiTexture = Window.loadTexture("res/img/iod_gui.png");
  SDL_Texture* sbGuiTexture = Window.loadTexture("res/img/system_bus_gui.png");
  SDL_Texture* progressBarTexture = Window.loadTexture("res/img/progress_bar.png");
  SDL_Texture* progressBarNowTexture = Window.loadTexture("res/img/progress_bar_now.png");
@@ -90,7 +92,8 @@ int main(int argc, char* args[]) {
  //GUI backgrounds
  Entity cpuGui(Vector2f(6, 10), cpuGuiTexture, 256, 128);
  Entity cmGui(Vector2f(70, 10), cmGuiTexture, 256, 128);
- Entity sbGui(Vector2f(6, 121), sbGuiTexture, 128, 256);
+ Entity iodGui(Vector2f(111, 58), iodGuiTexture, 256, 128);
+ Entity sbGui(Vector2f(6, 121), sbGuiTexture, 128, 384);
  //Instruction name
  TextEntity instNameTitle(Vector2f(32, 3), fontTexture, &font);
  TextEntity instNameValue(Vector2f(82, 3), fontTexture, &font);
@@ -212,6 +215,7 @@ int main(int argc, char* args[]) {
  }
  msNext = msNow + msStep;
  clicked = false;
+ key = 0x0;
  //Controls
  while(SDL_PollEvent(&event)) {
  switch(event.type) {
@@ -241,6 +245,25 @@ int main(int argc, char* args[]) {
  cellsStartAddress = settings.interpreter.ramSize - (4 - cellsStartAddress);
  }
  break;
+ case SDL_KEYDOWN:
+ SDL_Scancode code = event.key.keysym.scancode;
+ if(code >= SDL_SCANCODE_A && code <= SDL_SCANCODE_Z) {
+ key = code + 93;
+ }
+ else if(code >= SDL_SCANCODE_1 && code <= SDL_SCANCODE_9) {
+ key = code + 19;
+ }
+ else if(code >= SDL_SCANCODE_KP_1 && code <= SDL_SCANCODE_KP_9) {
+ key = code - 40;
+ }
+ else if(code == SDL_SCANCODE_0 || code == SDL_SCANCODE_KP_0) {
+ key = '0';
+ }
+ else if(code == SDL_SCANCODE_KP_ENTER) {
+ key = '\n';
+ }
+ IOD.input(key);
+ break;
  }
  }
  //Actual processing
@@ -370,6 +393,7 @@ int main(int argc, char* args[]) {
  //GUI backgrounds
  Window.renderGui(cpuGui);
  Window.renderGui(cmGui);
+ Window.renderGui(iodGui);
  Window.renderGui(sbGui);
  //CPU Render
  Window.renderText(cpuTitle);

res/img/system_bus_gui.png

@@ -877,4 +877,52 @@ Uint8 CentralMemory::get(Uint16 address) {
  return M[address];
 }
 
-InputOutputDevices::InputOutputDevices(SystemBus* pSB) :SB(pSB) {}
+InputOutputDevices::InputOutputDevices(SystemBus* pSB) :SB(pSB) {}
+
+void InputOutputDevices::operate() {
+ ControlBus control = SB->getControl();
+ Uint16 address = SB->getAddress();
+ Uint16 data = SB->getData();
+ if(control.M) return;
+ if(address == 0x0 && !control.R) { //Output monitor
+ Uint16 data = SB->getData();
+ if(data == '\n') {
+ line0 = line1;
+ line1 = line2;
+ line2 = line3;
+ line3 = "";
+ }
+ else if(line0.size() == 20) {
+ if(line1.size() == 20) {
+ if(line2.size() == 20) {
+ if(line3.size() == 20) {
+ line0 = line1;
+ line1 = line2;
+ line2 = line3;
+ line3 = char(data);
+ }
+ else {
+ line3 += char(data);
+ }
+ }
+ else {
+ line2 += char(data);
+ }
+ }
+ else {
+ line1 += char(data);
+ }
+ }
+ else {
+ line0 += char(data);
+ }
+ }
+ else if(address == 0x1 && control.R) { //Input keyboard
+ SB->writeData(key);
+ key = 0x0;
+ }
+}
+
+void InputOutputDevices::input(Uint8 i) {
+ key = i;
+}