Fixed writing to ROM causing issues

Author: colecrouter

private/processor/cpu/lr35902/lr35902.go

@@ -81,7 +81,7 @@ func (c *LR35902) Step() int {
 	// 	fmt.Printf("")
 	// }
 
-	if c.Registers.PC == 0x1446 {
+	if c.Registers.PC == 0x0a9b {
 		// Load stack for debugging
 		var stack [63]uint16
 		for j := 0; j < len(stack); j++ {

private/reader/reader.go

@@ -37,5 +37,6 @@ func (cr *CartridgeReader) Read(addr uint16) uint8 {
 
 func (cr *CartridgeReader) Write(addr uint16, val uint8) {
 	// TODO implement cartridge write protection
-	cr.cartridge.Write(addr, val)
+	// cr.cartridge.Write(addr, val)
+	// panic("Cartridge write protection not implemented")
 }

private/ui/terminal/terminal.go

@@ -4,7 +4,7 @@ import (
 	"bufio"
 	"fmt"
 	"os"
-	"os/signal"
+	"os/signal" // added import
 	"syscall"
 	"time"
 
@@ -52,14 +52,14 @@ func (a *Application) Run(skipBootROM bool) {
 	// Defer terminal restoration in the main goroutine.
 	defer term.Restore(int(os.Stdin.Fd()), oldState)
 
-	// Create a panic channel.
-	panicChan := make(chan interface{}, 1)
-
 	// Start the GameBoy runtime in a goroutine with panic recovery.
 	go func() {
 		defer func() {
 			if r := recover(); r != nil {
-				panicChan <- r
+				// Restore terminal before printing panic stack trace.
+				term.Restore(int(os.Stdin.Fd()), oldState)
+
+				panic(r)
 			}
 		}()
 		a.gb.Start(skipBootROM)
@@ -129,6 +129,12 @@ Loop:
 
 			// Handle quit key.
 			if key == "q" {
+				// Stop the GameBoy runtime.
+				a.gb.Stop()
+
+				// Clear the screen.
+				fmt.Print("\033[H\033[2J")
+
 				break Loop
 			}
 
@@ -160,18 +166,8 @@ Loop:
 			joy.SetButton(butt, true)
 		case <-sigChan:
 			break Loop
-
-		case <-panicChan:
-			// Optionally log p
-			break Loop
 		}
 	}
-
-	// Stop the GameBoy runtime.
-	a.gb.Stop()
-
-	// Clear the screen.
-	fmt.Print("\033[H\033[2J")
 }
 
 func (a *Application) render() {