Fix regression on the command line parsing

apple2.go

@@ -25,6 +25,7 @@ type Apple2 struct {
 	isColor             bool
 	fastMode            bool
 	fastRequestsCounter int
+	profile             bool
 	showSpeed           bool
 }
 
@@ -91,6 +92,15 @@ func (a *Apple2) Run() {
 	}
 }
 
+func (a *Apple2) setProfiling(value bool) {
+	a.profile = value
+}
+
+// IsProfiling returns true when profiling
+func (a *Apple2) IsProfiling() bool {
+	return a.profile
+}
+
 const (
 	// CommandToggleSpeed toggles cpu speed between full speed and actual Apple II speed
 	CommandToggleSpeed = iota + 1

apple2main.go

@@ -97,6 +97,10 @@ func MainApple() *Apple2 {
 		"model",
 		"2enh",
 		"set base model. Models available 2plus, 2e, 2enh, base64a")
+	profile := flag.Bool(
+		"profile",
+		false,
+		"generate profile trace to analyse with pprof")
 	flag.Parse()
 
 	if *wozImage != "" {
@@ -170,6 +174,7 @@ func MainApple() *Apple2 {
 	a.cpu.SetTrace(*traceCPU)
 	a.io.setTrace(*traceSS)
 	a.io.setPanicNotImplemented(*panicSS)
+	a.setProfiling(*profile)
 
 	// Load ROM if not loaded already
 	if *romFile != "" {

apple2sdl/main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"flag"
 	"unsafe"
 
 	"github.com/ivanizag/apple2"
@@ -10,18 +9,13 @@ import (
 )
 
 func main() {
-	prof := flag.Bool(
-		"profile",
-		false,
-		"generate profile trace to analyse with pprof")
-	flag.Parse()
-	if *prof {
+	a := apple2.MainApple()
+	if a.IsProfiling() {
 		// See the log with:
 		//    go tool pprof --pdf ~/go/bin/apple2sdl /tmp/profile329536248/cpu.pprof > profile.pdf
 		defer profile.Start().Stop()
 	}
 
-	a := apple2.MainApple()
 	if a != nil {
 		SDLRun(a)
 	}