fix

core/gb/dma.go

@@ -26,6 +26,9 @@ func newDMAController(g *GB) *dmaController {
 }
 
 func (d *dmaController) Reset(hasBIOS bool) {
+	d.mode = GDMA
+	d.src, d.dst, d.length = 0, 0, 0
+	d.completed = true
 	if !hasBIOS {
 		d.Write(0xFF51, 0xFF)
 		d.Write(0xFF52, 0xFF)

core/gb/gb.go

@@ -61,15 +61,17 @@ func New(audioBuffer io.Writer) *GB {
 	return g
 }
 
-func (g *GB) ID() string {
-	return "GB"
-}
+func (g *GB) ID() string { return "GB" }
 
 func (g *GB) Reset(hasBIOS bool) {
+	g.ie, g.interrupt = 0, [5]bool{}
+	g.halted, g.blocked, g.key1, g.inOAMDMA = false, false, false, false
+
 	model := 0
 	if g.cartridge != nil && g.cartridge.IsCGB() {
 		model = 1
 	}
+
 	g.s.Reset()
 	g.m.Reset(hasBIOS)
 	g.cpu.Reset(hasBIOS)
@@ -156,13 +158,9 @@ func (g *GB) run() {
 	g.s.Commit()
 }
 
-func (g *GB) Resolution() (w int, h int) {
-	return 160, 144
-}
+func (g *GB) Resolution() (w int, h int) { return 160, 144 }
 
-func (g *GB) Screen() []color.RGBA {
-	return g.video.Screen()
-}
+func (g *GB) Screen() []color.RGBA { return g.video.Screen() }
 
 func (g *GB) SetKeyInput(key string, press bool) {
 	for i, b := range buttons {
@@ -179,9 +177,7 @@ func (g *GB) Title() string {
 	return g.cartridge.Title()
 }
 
-func (g *GB) requestInterrupt(id int) {
-	g.interrupt[id] = true
-}
+func (g *GB) requestInterrupt(id int) { g.interrupt[id] = true }
 
 func (g *GB) checkInterrupt() int {
 	for i := 0; i < 5; i++ {

core/gb/input.go

@@ -15,8 +15,7 @@ func newInput(g *GB) *Input {
 }
 
 func (i *Input) Reset(hasBIOS bool) {
-	i.p14 = false
-	i.p15 = false
+	i.p14, i.p15 = false, false
 	i.joyp = 0x0F
 	if !hasBIOS {
 		i.Write(0xFF00, 0x30)

core/gb/memory.go

@@ -28,9 +28,7 @@ func (m *Memory) Reset(hasBIOS bool) {
 		m.hram[i] = 0
 	}
 	m.wramBank = 1
-	m.ff72 = 0
-	m.ff73 = 0
-	m.ff74 = 0
+	m.ff72, m.ff73, m.ff74 = 0, 0, 0
 }
 
 func (m *Memory) Read(addr uint16) byte {

core/gb/timer.go

@@ -24,10 +24,7 @@ func newTimer(g *GB) *timer {
 }
 
 func (t *timer) Reset(hasBIOS bool) {
-	t.counter = 0
-	t.tima = 0
-	t.tma = 0
-	t.tac = 0
+	t.counter, t.tima, t.tma, t.tac = 0, 0, 0, 0
 	if !hasBIOS {
 		t.tac = 0xF8
 	}