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diff --git a/chips/fb_misc.c b/chips/fb_misc.c
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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ *	File: fb_misc.c
+ * 	Author: Alessandro Forin, Carnegie Mellon University
+ *	Date:	7/91
+ *
+ *	Driver for the PMAG-AA simple mono framebuffer
+ *
+ */
+
+#include <mfb.h>
+#if	(NMFB > 0)
+
+/*
+ * NOTE: This driver relies heavily on the pm one.
+ */
+
+#include <device/device_types.h>
+#include <chips/screen_defs.h>
+#include <chips/pm_defs.h>
+typedef pm_softc_t	fb_softc_t;
+
+#include <chips/bt455.h>
+
+/*
+ * Initialize color map, for kernel use
+ */
+fb_init_colormap(sc)
+	screen_softc_t	sc;
+{
+	fb_softc_t	*fb = (fb_softc_t*)sc->hw_state;
+	user_info_t	*up = sc->up;
+	color_map_t	Bg_Fg[2];
+	register int	i;
+
+	bt455_init_colormap( fb->vdac_registers );
+
+	/* init bg/fg colors */
+	for (i = 0; i < 3; i++) {
+		up->dev_dep_2.pm.Bg_color[i] = 0x00;
+		up->dev_dep_2.pm.Fg_color[i] = 0xff;
+	}
+
+	Bg_Fg[0].red = Bg_Fg[0].green = Bg_Fg[0].blue = 0x00;
+	Bg_Fg[1].red = Bg_Fg[1].green = Bg_Fg[1].blue = 0xff;
+	bt455_cursor_color( fb->vdac_registers, Bg_Fg);
+}
+
+/*
+ * Large viz small cursor
+ */
+fb_small_cursor_to_large(up, cursor)
+	user_info_t	*up;
+	cursor_sprite_t	cursor;
+{
+	unsigned char	*curbytes, *sprite;
+	int             i;
+	/* Our cursor turns out mirrored, donno why */
+	static unsigned char	mirror[256] = {
+		0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 
+		0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 
+		0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 
+		0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 
+		0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 
+		0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 
+		0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 
+		0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 
+		0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 
+		0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 
+		0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 
+		0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 
+		0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 
+		0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 
+		0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 
+		0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 
+		0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 
+		0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 
+		0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 
+		0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 
+		0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 
+		0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 
+		0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 
+		0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 
+		0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 
+		0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 
+		0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 
+		0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 
+		0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 
+		0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 
+		0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 
+		0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+	};
+
+	/* Clear out old cursor */
+	bzero(	up->dev_dep_2.pm.cursor_sprite,
+		sizeof(up->dev_dep_2.pm.cursor_sprite));
+
+	/* small cursor is 32x2 bytes, image(fg) first then mask(bg) */
+	curbytes = (unsigned char *) cursor;
+
+	/* we have even byte --> image, odd byte --> mask;
+	   line size is 8 bytes instead of 2 */
+	sprite   = (unsigned char *) up->dev_dep_2.pm.cursor_sprite;
+
+	for (i = 0; i < 32; i += 2) {
+		*sprite++ = mirror[curbytes[i]];	/* fg */
+		*sprite++ = mirror[curbytes[i + 32]];	/* bg */
+		*sprite++ = mirror[curbytes[i + 1]];	/* fg */
+		*sprite++ = mirror[curbytes[i + 33]];	/* bg */
+		sprite += 12; /* skip rest of the line */
+	}
+}
+
+/*
+ * Device-specific set status
+ */
+fb_set_status(sc, flavor, status, status_count)
+	screen_softc_t	sc;
+	int		flavor;
+	dev_status_t	status;
+	unsigned int	status_count;
+{
+	fb_softc_t		*fb = (fb_softc_t*) sc->hw_state;
+
+	switch (flavor) {
+
+	case SCREEN_ADJ_MAPPED_INFO:
+		return pm_set_status(sc, flavor, status, status_count);
+
+	case SCREEN_LOAD_CURSOR:
+
+		if (status_count < sizeof(cursor_sprite_t)/sizeof(int))
+			return D_INVALID_SIZE;
+		fb_small_cursor_to_large(sc->up, (cursor_sprite_t*) status);
+
+		/* Fall through */
+
+	case SCREEN_LOAD_CURSOR_LONG: { /* 3max/3min only */
+
+		sc->flags |= SCREEN_BEING_UPDATED;
+		bt431_cursor_sprite(fb->cursor_registers, sc->up->dev_dep_2.pm.cursor_sprite);
+		sc->flags &= ~SCREEN_BEING_UPDATED;
+
+		break;
+	}
+	     
+	case SCREEN_SET_CURSOR_COLOR: {
+		color_map_t		c[2];
+		register cursor_color_t	*cc = (cursor_color_t*) status;
+
+		c[0].red   = cc->Bg_rgb[0];
+		c[0].green = cc->Bg_rgb[1];
+		c[0].blue  = cc->Bg_rgb[2];
+		c[1].red   = cc->Fg_rgb[0];
+		c[1].green = cc->Fg_rgb[1];
+		c[1].blue  = cc->Fg_rgb[2];
+
+		sc->flags |= SCREEN_BEING_UPDATED;
+		bt455_cursor_color (fb->vdac_registers, c );
+		sc->flags &= ~SCREEN_BEING_UPDATED;
+
+		break;
+	}
+
+	case SCREEN_SET_CMAP_ENTRY: {
+		color_map_entry_t	*e = (color_map_entry_t*) status;
+
+		if (e->index < 8) { /* 8&9 are fg&bg, do not touch */
+			sc->flags |= SCREEN_BEING_UPDATED;
+			bt455_load_colormap_entry( fb->vdac_registers, e->index, &e->value);
+			sc->flags &= ~SCREEN_BEING_UPDATED;
+		}
+		break;
+	}
+
+	default:
+		return D_INVALID_OPERATION;
+	}
+	return D_SUCCESS;
+}
+
+/*
+ * Do what's needed when X exits
+ */
+fb_soft_reset(sc)
+	screen_softc_t	sc;
+{
+	fb_softc_t	*fb = (fb_softc_t*) sc->hw_state;
+	user_info_t	*up =  sc->up;
+	extern cursor_sprite_t	bt431_default_cursor;
+
+	/*
+	 * Restore params in mapped structure
+	 */
+	pm_init_screen_params(sc,up);
+	up->row = up->max_row - 1;
+
+	up->dev_dep_2.pm.x26 = 2; /* you do not want to know */
+	up->dev_dep_1.pm.x18 = (short*)2;
+
+	/*
+	 * Restore RAMDAC chip to default state, and init cursor
+	 */
+	bt455_init(fb->vdac_registers);
+	bt431_init(fb->cursor_registers);
+
+	/*
+	 * Load kernel's cursor sprite
+	 */
+	bt431_cursor_sprite(fb->cursor_registers, bt431_default_cursor);
+
+	/*
+	 * Color map and cursor color
+	 */
+	fb_init_colormap(sc);
+}
+
+#endif	(NMFB > 0)