Improved console output redrawing the screen in place

apple2/apple2.go

@@ -18,6 +18,7 @@ func Run(romFile string, log bool) {
 
 	// Start the processor
 	core6502.Reset(&s)
+	t.prepare()
 	for true {
 		core6502.ExecuteInstruction(&s, log)
 		t.dumpIfDirty()

apple2/textPages.go

@@ -34,10 +34,16 @@ func textMemoryByteToStringHex(value uint8) string {
 	return fmt.Sprintf("%02x ", value)
 }
 
+func (tp *textPages) prepare() {
+	fmt.Printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n")
+}
+
 func (tp *textPages) dump() {
 	// See "Understand the Apple II", page 5-10
 	// http://www.applelogic.org/files/UNDERSTANDINGTHEAII.pdf
 
+	fmt.Print("\033[26A")
+
 	fmt.Println("------------------------------------------")
 
 	var i, j, h uint8

core6502/execute.go

@@ -550,7 +550,6 @@ func ExecuteInstruction(s *State, log bool) {
 // Reset resets the processor state. Moves the program counter to the vector in 0cfffc.
 func Reset(s *State) {
 	startAddress := s.Mem.getWord(0xfffc)
-	fmt.Println(startAddress)
 	s.Reg.setPC(startAddress)
 }