More work on CPU

main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"log"
+	"os"
 
 	// "gb-player/ui"
 	"gb-player/gb"
@@ -12,11 +13,10 @@ var running = true
 
 func main() {
 	// FIXME(m): Allow specifying rom file on command line
-	// if len(os.Args) != 2 {
-	// 	log.Fatalln("No rom file specified")
-	// }
-	// romPath := os.Args[1]
-	romPath := "./roms/dmg-acid2.gb"
+	if len(os.Args) != 2 {
+		log.Fatalln("No rom file specified")
+	}
+	romPath := os.Args[1]
 
 	// ui.Run(romPath)
 
@@ -25,15 +25,9 @@ func main() {
 		log.Fatal(err)
 	}
 
+	fmt.Println("Executing instructions")
 	running := true
 	for running {
-		err := console.CPU.Step()
-		if err != nil {
-			fmt.Println(err)
-			running = false
-			fmt.Println("CPU stopped")
-		} else {
-			fmt.Println("CPU step")
-		}
+		console.CPU.Step()
 	}
 }