update PrintInt and change PutString to PutInt

code/machine/console.cc

@@ -173,10 +173,12 @@ ConsoleOutput::PutChar(char ch)
 }
 
 void
-ConsoleOutput::PutString(char *str)
+ConsoleOutput::PutInt(int value)
 {
     ASSERT(putBusy == FALSE);
-    WriteFile(writeFileNo, str, strlen(str));
+    char *printStr = (char*)malloc(sizeof(char)*15);
+    sprintf(printStr, "%d\n", value);
+    WriteFile(writeFileNo, printStr, strlen(printStr)*sizeof(char));
     putBusy = TRUE;
     kernel->interrupt->Schedule(this, ConsoleTime, ConsoleWriteInt);
 }

code/machine/console.h

@@ -76,7 +76,7 @@ class ConsoleOutput : public CallBackObj {
     void PutChar(char ch);	// Write "ch" to the console display, 
 				// and return immediately.  "callWhenDone" 
 				// will called when the I/O completes. 
-    void PutString(char *str);
+    void PutInt(int n);
     void CallBack();		// Invoked when next character can be put
 				// out to the display.
 

code/machine/interrupt.cc

@@ -359,3 +359,8 @@ Interrupt::DumpState()
     cout << "\nEnd of pending interrupts\n";
 }
 
+void 
+Interrupt::PrintInt(int value)
+{
+    return kernel->PrintInt(value);
+}