diff --git a/input.c b/input.c
index 20917fa1..f44f602c 100644
--- a/input.c
+++ b/input.c
@@ -1033,10 +1033,10 @@ input_esc_dispatch(struct input_ctx *ictx)
 		screen_write_reverseindex(sctx);
 		break;
 	case INPUT_ESC_DECKPAM:
-		screen_write_kkeypadmode(sctx, 1);
+		screen_write_mode_set(sctx, MODE_KKEYPAD);
 		break;
 	case INPUT_ESC_DECKPNM:
-		screen_write_kkeypadmode(sctx, 0);
+		screen_write_mode_clear(sctx, MODE_KKEYPAD);
 		break;
 	case INPUT_ESC_DECSC:
 		memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
@@ -1232,7 +1232,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_RM:
 		switch (input_get(ictx, 0, 0, -1)) {
 		case 4:		/* IRM */
-			screen_write_insertmode(&ictx->ctx, 0);
+			screen_write_mode_clear(&ictx->ctx, MODE_INSERT);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1242,23 +1242,23 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_RM_PRIVATE:
 		switch (input_get(ictx, 0, 0, -1)) {
 		case 1:		/* GATM */
-			screen_write_kcursormode(&ictx->ctx, 0);
+			screen_write_mode_clear(&ictx->ctx, MODE_KCURSOR);
 			break;
 		case 3:		/* DECCOLM */
 			screen_write_cursormove(&ictx->ctx, 0, 0);
 			screen_write_clearscreen(&ictx->ctx);
 			break;
 		case 25:	/* TCEM */
-			screen_write_cursormode(&ictx->ctx, 0);
+			screen_write_mode_clear(&ictx->ctx, MODE_CURSOR);
 			break;
 		case 1000:
 		case 1001:
 		case 1002:
 		case 1003:
-			screen_write_mousemode_off(&ictx->ctx);
+			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
 			break;
 		case 1005:
-			screen_write_utf8mousemode(&ictx->ctx, 0);
+			screen_write_mode_clear(&ictx->ctx, MODE_MOUSE_UTF8);
 			break;
 		case 47:
 		case 1047:
@@ -1268,7 +1268,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 			window_pane_alternate_off(wp, &ictx->cell, 1);
 			break;
 		case 2004:
-			screen_write_bracketpaste(&ictx->ctx, 0);
+			screen_write_mode_clear(&ictx->ctx, MODE_BRACKETPASTE);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1286,7 +1286,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_SM:
 		switch (input_get(ictx, 0, 0, -1)) {
 		case 4:		/* IRM */
-			screen_write_insertmode(&ictx->ctx, 1);
+			screen_write_mode_set(&ictx->ctx, MODE_INSERT);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
@@ -1296,28 +1296,29 @@ input_csi_dispatch(struct input_ctx *ictx)
 	case INPUT_CSI_SM_PRIVATE:
 		switch (input_get(ictx, 0, 0, -1)) {
 		case 1:		/* GATM */
-			screen_write_kcursormode(&ictx->ctx, 1);
+			screen_write_mode_set(&ictx->ctx, MODE_KCURSOR);
 			break;
 		case 3:		/* DECCOLM */
 			screen_write_cursormove(&ictx->ctx, 0, 0);
 			screen_write_clearscreen(&ictx->ctx);
 			break;
 		case 25:	/* TCEM */
-			screen_write_cursormode(&ictx->ctx, 1);
+			screen_write_mode_set(&ictx->ctx, MODE_CURSOR);
 			break;
 		case 1000:
-			screen_write_mousemode_on(
-			    &ictx->ctx, MODE_MOUSE_STANDARD);
+			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_STANDARD);
 			break;
 		case 1002:
-			screen_write_mousemode_on(
-			    &ictx->ctx, MODE_MOUSE_BUTTON);
+			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_BUTTON);
 			break;
 		case 1003:
-			screen_write_mousemode_on(&ictx->ctx, MODE_MOUSE_ANY);
+			screen_write_mode_clear(&ictx->ctx, ALL_MOUSE_MODES);
+			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_ANY);
 			break;
 		case 1005:
-			screen_write_utf8mousemode(&ictx->ctx, 1);
+			screen_write_mode_set(&ictx->ctx, MODE_MOUSE_UTF8);
 			break;
 		case 47:
 		case 1047:
@@ -1327,7 +1328,7 @@ input_csi_dispatch(struct input_ctx *ictx)
 			window_pane_alternate_on(wp, &ictx->cell, 1);
 			break;
 		case 2004:
-			screen_write_bracketpaste(&ictx->ctx, 1);
+			screen_write_mode_set(&ictx->ctx, MODE_BRACKETPASTE);
 			break;
 		default:
 			log_debug("%s: unknown '%c'", __func__, ictx->ch);
diff --git a/screen-write.c b/screen-write.c
index e68e498d..9cbb5bb9 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -52,14 +52,11 @@ screen_write_stop(unused struct screen_write_ctx *ctx)
 void
 screen_write_reset(struct screen_write_ctx *ctx)
 {
-	screen_reset_tabs(ctx->s);
+	struct screen	*s = ctx->s;
 
-	screen_write_scrollregion(ctx, 0, screen_size_y(ctx->s) - 1);
-
-	screen_write_insertmode(ctx, 0);
-	screen_write_kcursormode(ctx, 0);
-	screen_write_kkeypadmode(ctx, 0);
-	screen_write_mousemode_off(ctx);
+	screen_reset_tabs(s);
+	screen_write_scrollregion(ctx, 0, screen_size_y(s) - 1);
+	s->mode &= ~(MODE_INSERT|MODE_KCURSOR|MODE_KKEYPAD|ALL_MOUSE_MODES);
 
 	screen_write_clearscreen(ctx);
 	screen_write_cursormove(ctx, 0, 0);
@@ -454,6 +451,24 @@ screen_write_initctx(
 	memcpy(&ttyctx->last_cell, gc, sizeof ttyctx->last_cell);
 }
 
+/* Set a mode. */
+void
+screen_write_mode_set(struct screen_write_ctx *ctx, int mode)
+{
+	struct screen	*s = ctx->s;
+
+	s->mode |= mode;
+}
+
+/* Clear a mode. */
+void
+screen_write_mode_clear(struct screen_write_ctx *ctx, int mode)
+{
+	struct screen	*s = ctx->s;
+
+	s->mode &= ~mode;
+}
+
 /* Cursor up by ny. */
 void
 screen_write_cursorup(struct screen_write_ctx *ctx, u_int ny)
@@ -805,18 +820,6 @@ screen_write_cursormove(struct screen_write_ctx *ctx, u_int px, u_int py)
 	s->cy = py;
 }
 
-/* Set cursor mode. */
-void
-screen_write_cursormode(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_CURSOR;
-	else
-		s->mode &= ~MODE_CURSOR;
-}
-
 /* Reverse index (up with scroll).  */
 void
 screen_write_reverseindex(struct screen_write_ctx *ctx)
@@ -856,61 +859,6 @@ screen_write_scrollregion(
 	s->rlower = rlower;
 }
 
-/* Set insert mode. */
-void
-screen_write_insertmode(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_INSERT;
-	else
-		s->mode &= ~MODE_INSERT;
-}
-
-/* Set UTF-8 mouse mode.  */
-void
-screen_write_utf8mousemode(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_MOUSE_UTF8;
-	else
-		s->mode &= ~MODE_MOUSE_UTF8;
-}
-
-/* Set mouse mode off. */
-void
-screen_write_mousemode_off(struct screen_write_ctx *ctx)
-{
-	struct screen	*s = ctx->s;
-
-	s->mode &= ~ALL_MOUSE_MODES;
-}
-
-/* Set mouse mode on. */
-void
-screen_write_mousemode_on(struct screen_write_ctx *ctx, int mode)
-{
-	struct screen	*s = ctx->s;
-
-	s->mode &= ~ALL_MOUSE_MODES;
-	s->mode |= mode;
-}
-
-/* Set bracketed paste mode. */
-void
-screen_write_bracketpaste(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_BRACKETPASTE;
-	else
-		s->mode &= ~MODE_BRACKETPASTE;
-}
-
 /* Line feed. */
 void
 screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped)
@@ -945,30 +893,6 @@ screen_write_carriagereturn(struct screen_write_ctx *ctx)
 	s->cx = 0;
 }
 
-/* Set keypad cursor keys mode. */
-void
-screen_write_kcursormode(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_KCURSOR;
-	else
-		s->mode &= ~MODE_KCURSOR;
-}
-
-/* Set keypad number keys mode. */
-void
-screen_write_kkeypadmode(struct screen_write_ctx *ctx, int state)
-{
-	struct screen	*s = ctx->s;
-
-	if (state)
-		s->mode |= MODE_KKEYPAD;
-	else
-		s->mode &= ~MODE_KKEYPAD;
-}
-
 /* Clear to end of screen from cursor. */
 void
 screen_write_clearendofscreen(struct screen_write_ctx *ctx)
diff --git a/tmux.h b/tmux.h
index 1a2b4155..afe55560 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1206,7 +1206,7 @@ struct tty {
 
 #define TTY_NOCURSOR 0x1
 #define TTY_FREEZE 0x2
-#define TTY_ESCAPE 0x4
+#define TTY_TIMER 0x4
 #define TTY_UTF8 0x8
 #define TTY_STARTED 0x10
 #define TTY_OPENED 0x20
@@ -2016,6 +2016,8 @@ void	 screen_write_putc(
 void	 screen_write_copy(struct screen_write_ctx *,
 	     struct screen *, u_int, u_int, u_int, u_int);
 void	 screen_write_backspace(struct screen_write_ctx *);
+void	 screen_write_mode_set(struct screen_write_ctx *, int);
+void	 screen_write_mode_clear(struct screen_write_ctx *, int);
 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
@@ -2030,18 +2032,11 @@ void	 screen_write_clearline(struct screen_write_ctx *);
 void	 screen_write_clearendofline(struct screen_write_ctx *);
 void	 screen_write_clearstartofline(struct screen_write_ctx *);
 void	 screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
-void	 screen_write_cursormode(struct screen_write_ctx *, int);
 void	 screen_write_reverseindex(struct screen_write_ctx *);
 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
-void	 screen_write_insertmode(struct screen_write_ctx *, int);
-void	 screen_write_utf8mousemode(struct screen_write_ctx *, int);
-void	 screen_write_mousemode_on(struct screen_write_ctx *, int);
-void	 screen_write_mousemode_off(struct screen_write_ctx *);
 void	 screen_write_linefeed(struct screen_write_ctx *, int);
 void	 screen_write_linefeedscreen(struct screen_write_ctx *, int);
 void	 screen_write_carriagereturn(struct screen_write_ctx *);
-void	 screen_write_kcursormode(struct screen_write_ctx *, int);
-void	 screen_write_kkeypadmode(struct screen_write_ctx *, int);
 void	 screen_write_clearendofscreen(struct screen_write_ctx *);
 void	 screen_write_clearstartofscreen(struct screen_write_ctx *);
 void	 screen_write_clearscreen(struct screen_write_ctx *);
@@ -2049,7 +2044,6 @@ void	 screen_write_clearhistory(struct screen_write_ctx *);
 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
-void	 screen_write_bracketpaste(struct screen_write_ctx *, int);
 
 /* screen-redraw.c */
 void	 screen_redraw_screen(struct client *, int, int);