2006-02-20 Thomas Schwinge <tschwinge@gnu.org>

Remove unused and unsupported code.  Consult the file
	`DEVELOPMENT' for details.  Partly based on suggestions by
	Gianluca Guida <glguida@gmail.com>.

	* i386/pc/NOTES: Remove file.
	* i386/pc/debug.h: Likewise.
	* i386/pc/exit.c: Likewise.
	* i386/pc/gdt.h: Likewise.
	* i386/pc/gdt_sels.h: Likewise.
	* i386/pc/i16/i16_a20.c: Likewise.
	* i386/pc/i16/i16_a20.h: Likewise.
	* i386/pc/i16/i16_bios.h: Likewise.
	* i386/pc/i16/i16_exit.c: Likewise.
	* i386/pc/i16/i16_ext_mem.c: Likewise.
	* i386/pc/i16/i16_init.c: Likewise.
	* i386/pc/i16/i16_main.c: Likewise.
	* i386/pc/i16/i16_pic.c: Likewise.
	* i386/pc/i16/i16_putchar.c: Likewise.
	* i386/pc/i16/i16_raw.c: Likewise.
	* i386/pc/i16/i16_raw_test_a20.S: Likewise.
	* i386/pc/i16/i16_real_int.S: Likewise.
	* i386/pc/i16/i16_switch.h: Likewise.
	* i386/pc/i16/phys_mem_collect.c: Likewise.
	* i386/pc/i16/phys_mem_sources.h: Likewise.
	* i386/pc/i16/raw_exit.c: Likewise.
	* i386/pc/i16/raw_real_int.c: Likewise.
	* i386/pc/ipl.h: Likewise.
	* i386/pc/irq.h: Likewise.
	* i386/pc/irq_list.h: Likewise.
	* i386/pc/pc_asm.sym: Likewise.
	* i386/pc/phys_mem.h: Likewise.
	* i386/pc/phys_mem_add.c: Likewise.
	* i386/pc/pic.c: Likewise.
	* i386/pc/pic.h: Likewise.
	* i386/pc/putchar.c: Likewise.
	* i386/pc/real.h: Likewise.
	* i386/pc/real_tss.c: Likewise.
	* i386/pc/real_tss.h: Likewise.
	* i386/pc/real_tss_def.S: Likewise.
	* i386/pc/rv86/config.h: Likewise.
	* i386/pc/rv86/gdt_sels.h: Likewise.
	* i386/pc/rv86/idt_irq_init.c: Likewise.
	* i386/pc/rv86/rv86_real_int.c: Likewise.
	* i386/pc/rv86/rv86_real_int_asm.S: Likewise.
	* i386/pc/rv86/rv86_reflect_irq.S: Likewise.
	* i386/pc/rv86/rv86_trap_handler.S: Likewise.
	* i386/pc/rv86/trap_handler.S: Likewise.

17 files changed, 0 insertions, 1229 deletions

diff --git a/i386/pc/i16/i16_a20.c b/i386/pc/i16/i16_a20.c
deleted file mode 100644
index 5e91f86..0000000
--- a/i386/pc/i16/i16_a20.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-
-#include <mach/machine/pio.h>
-#include <mach/machine/code16.h>
-
-#include "i16_a20.h"
-
-
-/* Keyboard stuff for turning on the A20 address line (gak!).  */
-#define K_RDWR 		0x60		/* keyboard data & cmds (read/write) */
-#define K_STATUS 	0x64		/* keyboard status (read-only) */
-#define K_CMD	 	0x64		/* keybd ctlr command (write-only) */
-
-#define K_OBUF_FUL 	0x01		/* output buffer full */
-#define K_IBUF_FUL 	0x02		/* input buffer full */
-
-#define KC_CMD_WIN	0xd0		/* read  output port */
-#define KC_CMD_WOUT	0xd1		/* write output port */
-
-#define KB_ENABLE_A20	0xdf	/* Linux and my BIOS uses this,
-				   and I trust them more than Mach 3.0,
-				   but I'd like to know what the difference is
-				   and if it matters.  */
-			/*0x9f*/	/* enable A20,
-					   enable output buffer full interrupt
-					   enable data line
-					   disable clock line */
-#define KB_DISABLE_A20	0xdd
-
-
-CODE16
-
-
-/*
-   This routine ensures that the keyboard command queue is empty
-   (after emptying the output buffers)
-
-   No timeout is used - if this hangs there is something wrong with
-   the machine, and we probably couldn't proceed anyway.
-   XXX should at least die properly
-*/
-static void i16_empty_8042(void)
-{
-	int status;
-
-retry:
-	i16_nanodelay(1000);
-	status = i16_inb(K_STATUS);
-
-	if (status & K_OBUF_FUL)
-	{
-		i16_nanodelay(1000);
-		i16_inb(K_RDWR);
-		goto retry;
-	}
-
-	if (status & K_IBUF_FUL)
-		goto retry;
-}
-
-int i16_raw_test_a20(void);
-
-/* Enable the A20 address line.  */
-void i16_raw_enable_a20(void)
-{
-	int v;
-
-	/* XXX try int 15h function 24h */
-
-	if (i16_raw_test_a20())
-		return;
-
-	/* PS/2 */
-	v = i16_inb(0x92);
-	i16_nanodelay(1000);
-	i16_outb(0x92,v | 2);
-
-	if (i16_raw_test_a20())
-		return;
-
-	/* AT */
-	i16_empty_8042();
-	i16_outb(K_CMD, KC_CMD_WOUT);
-	i16_empty_8042();
-	i16_outb(K_RDWR, KB_ENABLE_A20);
-	i16_empty_8042();
-
-	/* Wait until the a20 line gets enabled.  */
-	while (!i16_raw_test_a20());
-}
-
-/* Disable the A20 address line.  */
-void i16_raw_disable_a20(void)
-{
-	int v;
-
-	if (!i16_raw_test_a20())
-		return;
-
-	/* PS/2 */
-	v = i16_inb(0x92);
-	i16_nanodelay(1000);
-	i16_outb(0x92, v & ~2);
-
-	if (!i16_raw_test_a20())
-		return;
-
-	/* AT */
-	i16_empty_8042();
-	i16_outb(K_CMD, KC_CMD_WOUT);
-	i16_empty_8042();
-	i16_outb(K_RDWR, KB_DISABLE_A20);
-	i16_empty_8042();
-
-	/* Wait until the a20 line gets disabled.  */
-	while (i16_raw_test_a20());
-}
-
-
-void (*i16_enable_a20)(void) = i16_raw_enable_a20;
-void (*i16_disable_a20)(void) = i16_raw_disable_a20;
-
diff --git a/i386/pc/i16/i16_a20.h b/i386/pc/i16/i16_a20.h
deleted file mode 100644
index afe124b..0000000
--- a/i386/pc/i16/i16_a20.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-#ifndef _I386_PC_A20_H_
-#define _I386_PC_A20_H_
-
-/* By default these point to the "raw" routines in pc/a20.c.
-   They can be revectored to other routines,
-   e.g. to use a HIMEM driver's facilities.  */
-extern void (*i16_enable_a20)(void);
-extern void (*i16_disable_a20)(void);
-
-#endif _I386_PC_A20_H_
diff --git a/i386/pc/i16/i16_bios.h b/i386/pc/i16/i16_bios.h
deleted file mode 100644
index 29dc2d8..0000000
--- a/i386/pc/i16/i16_bios.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-#ifndef _I16_BIOS_H_
-#define _I16_BIOS_H_
-
-#include <mach/inline.h>
-
-
-MACH_INLINE void i16_bios_putchar(int c)
-{
-	asm volatile("int $0x10" : : "a" (0x0e00 | (c & 0xff)), "b" (0x07));
-}
-
-MACH_INLINE int i16_bios_getchar()
-{
-	int c;
-	asm volatile("int $0x16" : "=a" (c) : "a" (0x0000));
-	c &= 0xff;
-	return c;
-}
-
-MACH_INLINE void i16_bios_warm_boot(void)
-{
-	asm volatile("
-		cli
-		movw	$0x40,%ax
-		movw	%ax,%ds
-		movw	$0x1234,0x72
-		ljmp	$0xffff,$0x0000
-	");
-}
-
-MACH_INLINE void i16_bios_cold_boot(void)
-{
-	asm volatile("
-		cli
-		movw	$0x40,%ax
-		movw	%ax,%ds
-		movw	$0x0000,0x72
-		ljmp	$0xffff,$0x0000
-	");
-}
-
-MACH_INLINE unsigned char i16_bios_copy_ext_mem(
-	unsigned src_la, unsigned dest_la, unsigned short word_count)
-{
-	char buf[48];
-	unsigned short i, rc;
-
-	/* Initialize the descriptor structure.  */
-	for (i = 0; i < sizeof(buf); i++)
-		buf[i] = 0;
-	*((unsigned short*)(buf+0x10)) = 0xffff; /* source limit */
-	*((unsigned long*)(buf+0x12)) = src_la; /* source linear address */
-	*((unsigned char*)(buf+0x15)) = 0x93; /* source access rights */
-	*((unsigned short*)(buf+0x18)) = 0xffff; /* dest limit */
-	*((unsigned long*)(buf+0x1a)) = dest_la; /* dest linear address */
-	*((unsigned char*)(buf+0x1d)) = 0x93; /* dest access rights */
-
-#if 0
-	i16_puts("buf:");
-	for (i = 0; i < sizeof(buf); i++)
-		i16_writehexb(buf[i]);
-	i16_puts("");
-#endif
-
-	/* Make the BIOS call to perform the copy.  */
-	asm volatile("
-		int	$0x15
-	" : "=a" (rc)
-	  : "a" ((unsigned short)0x8700),
-	    "c" (word_count),
-	    "S" ((unsigned short)(unsigned)buf));
-
-	return rc >> 8;
-}
-
-#endif _I16_BIOS_H_
diff --git a/i386/pc/i16/i16_exit.c b/i386/pc/i16/i16_exit.c
deleted file mode 100644
index 674033a..0000000
--- a/i386/pc/i16/i16_exit.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/code16.h>
-
-#include "i16_bios.h"
-
-
-CODE16
-
-void i16_exit(int rc)
-{
-	i16_puts("Press any key to reboot.");
-	i16_bios_getchar();
-	i16_bios_warm_boot();
-}
-
diff --git a/i386/pc/i16/i16_ext_mem.c b/i386/pc/i16/i16_ext_mem.c
deleted file mode 100644
index 08cbecf..0000000
--- a/i386/pc/i16/i16_ext_mem.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/code16.h>
-#include <mach/machine/vm_types.h>
-#include <mach/machine/far_ptr.h>
-#include <mach/machine/proc_reg.h>
-
-#include "i16_bios.h"
-#include "phys_mem.h"
-#include "vm_param.h"
-#include "debug.h"
-
-
-static vm_offset_t ext_mem_phys_free_mem;
-static vm_size_t ext_mem_phys_free_size;
-
-
-CODE32
-
-int ext_mem_collect(void)
-{
-	if (ext_mem_phys_free_mem)
-	{
-		phys_mem_add(ext_mem_phys_free_mem, ext_mem_phys_free_size);
-		ext_mem_phys_free_mem = 0;
-	}
-}
-
-CODE16
-
-void i16_ext_mem_check()
-{
-	vm_offset_t ext_mem_top, ext_mem_bot;
-	unsigned short ext_mem_k;
-
-	/* Find the top of available extended memory.  */
-	asm volatile("
-		int	$0x15
-		jnc	1f
-		xorw	%%ax,%%ax
-	1:
-	" : "=a" (ext_mem_k)
-	  : "a" (0x8800));
-	ext_mem_top = 0x100000 + (vm_offset_t)ext_mem_k * 1024;
-
-	/* XXX check for >16MB memory using function 0xc7 */
-
-	ext_mem_bot = 0x100000;
-
-	/* Check for extended memory allocated bottom-up: method 1.
-	   This uses the technique (and, loosely, the code)
-	   described in the VCPI spec, version 1.0.  */
-	if (ext_mem_top > ext_mem_bot)
-	{
-		asm volatile("
-			pushw	%%es
-
-			xorw	%%ax,%%ax
-			movw	%%ax,%%es
-			movw	%%es:0x19*4+2,%%ax
-			movw	%%ax,%%es
-
-			movw	$0x12,%%di
-			movw	$7,%%cx
-			rep
-			cmpsb
-			jne	1f
-
-			xorl	%%edx,%%edx
-			movb	%%es:0x2e,%%dl
-			shll	$16,%%edx
-			movw	%%es:0x2c,%%dx
-
-		1:
-			popw	%%es
-		" : "=d" (ext_mem_bot)
-		  : "d" (ext_mem_bot),
-		    "S" ((unsigned short)(vm_offset_t)"VDISK V")
-		  : "eax", "ecx", "esi", "edi");
-	}
-	i16_assert(ext_mem_bot >= 0x100000);
-
-	/* Check for extended memory allocated bottom-up: method 2.
-	   This uses the technique (and, loosely, the code)
-	   described in the VCPI spec, version 1.0.  */
-	if (ext_mem_top > ext_mem_bot)
-	{
-		struct {
-			char pad1[3];
-			char V;
-			long DISK;
-			char pad2[30-8];
-			unsigned short addr;
-		} buf;
-		unsigned char rc;
-
-		i16_assert(sizeof(buf) == 0x20);
-		rc = i16_bios_copy_ext_mem(0x100000, kvtolin((vm_offset_t)&buf), sizeof(buf)/2);
-		if ((rc == 0) && (buf.V == 'V') && (buf.DISK == 'DISK'))
-		{
-			vm_offset_t new_bot = (vm_offset_t)buf.addr << 10;
-			i16_assert(new_bot > 0x100000);
-			if (new_bot > ext_mem_bot)
-				ext_mem_bot = new_bot;
-		}
-	}
-	i16_assert(ext_mem_bot >= 0x100000);
-
-	if (ext_mem_top > ext_mem_bot)
-	{
-		ext_mem_phys_free_mem = ext_mem_bot;
-		ext_mem_phys_free_size = ext_mem_top - ext_mem_bot;
-
-		/* We need to update phys_mem_max here
-		   instead of just letting phys_mem_add() do it
-		   when the memory is collected with phys_mem_collect(),
-		   because VCPI initialization needs to know the top of physical memory
-		   before phys_mem_collect() is called.
-		   See i16_vcpi.c for the gross details.  */
-		if (ext_mem_top > phys_mem_max)
-			phys_mem_max = ext_mem_top;
-	}
-}
-
-void i16_ext_mem_shutdown()
-{
-	/* We didn't actually allocate the memory,
-	   so no need to deallocate it... */
-}
-
diff --git a/i386/pc/i16/i16_init.c b/i386/pc/i16/i16_init.c
deleted file mode 100644
index 23a51df..0000000
--- a/i386/pc/i16/i16_init.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/code16.h>
-#include <mach/machine/proc_reg.h>
-
-#include "vm_param.h"
-
-
-/* Code segment we originally had when we started in real mode.  */
-unsigned short real_cs;
-
-/* Virtual address of physical memory.  */
-vm_offset_t phys_mem_va;
-
-/* Physical address of start of boot image.  */
-vm_offset_t boot_image_pa;
-
-/* Upper limit of known physical memory.  */
-vm_offset_t phys_mem_max;
-
-
-CODE16
-
-#include "i16_bios.h"
-
-/* Called by i16_crt0 (or the equivalent)
-   to set up our basic 16-bit runtime environment
-   before calling i16_main().  */
-void i16_init(void)
-{
-	/* Find our code/data/everything segment.  */
-	real_cs = get_cs();
-
-	/* Find out where in physical memory we got loaded.  */
-	boot_image_pa = real_cs << 4;
-
-	/* Find out where the bottom of physical memory is.
-	   (We won't be able to directly use it for 32-bit accesses
-	   until we actually get into 32-bit mode.)  */
-	phys_mem_va = -boot_image_pa;
-
-	/* The base of linear memory is at the same place,
-	   at least until we turn paging on.  */
-	linear_base_va = phys_mem_va;
-}
-
diff --git a/i386/pc/i16/i16_main.c b/i386/pc/i16/i16_main.c
deleted file mode 100644
index 328cceb..0000000
--- a/i386/pc/i16/i16_main.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/code16.h>
-
-
-CODE16
-
-void i16_main(void)
-{
-	i16_init();
-
-	/* Grab all the memory we can find.  */
-	i16_ext_mem_check();
-
-	i16_raw_start();
-}
-
diff --git a/i386/pc/i16/i16_pic.c b/i386/pc/i16/i16_pic.c
deleted file mode 100644
index 3ff2697..0000000
--- a/i386/pc/i16/i16_pic.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* 
- * Copyright (c) 1995 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/pio.h>
-
-#include "pic.h"
-#include "i16.h"
-
-CODE16
-
-/* Program the PICs to use a different set of interrupt vectors.
-   Assumes processor I flag is off.  */
-void i16_pic_set_master(int base)
-{
-	unsigned char old_mask;
-
-	/* Save the original interrupt mask.  */
-	old_mask = inb(MASTER_OCW);	PIC_DELAY();
-
-	/* Initialize the master PIC.  */
-	outb(MASTER_ICW, PICM_ICW1);	PIC_DELAY();
-	outb(MASTER_OCW, base);		PIC_DELAY();
-	outb(MASTER_OCW, PICM_ICW3);	PIC_DELAY();
-	outb(MASTER_OCW, PICM_ICW4);	PIC_DELAY();
-
-	/* Restore the original interrupt mask.  */
-	outb(MASTER_OCW, old_mask);	PIC_DELAY();
-}
-
-void i16_pic_set_slave(int base)
-{
-	unsigned char old_mask;
-
-	/* Save the original interrupt mask.  */
-	old_mask = inb(SLAVES_OCW);	PIC_DELAY();
-
-	/* Initialize the slave PIC.  */
-	outb(SLAVES_ICW, PICS_ICW1);	PIC_DELAY();
-	outb(SLAVES_OCW, base);		PIC_DELAY();
-	outb(SLAVES_OCW, PICS_ICW3);	PIC_DELAY();
-	outb(SLAVES_OCW, PICS_ICW4);	PIC_DELAY();
-
-	/* Restore the original interrupt mask.  */
-	outb(SLAVES_OCW, old_mask);	PIC_DELAY();
-}
-
diff --git a/i386/pc/i16/i16_putchar.c b/i386/pc/i16/i16_putchar.c
deleted file mode 100644
index 365f4f8..0000000
--- a/i386/pc/i16/i16_putchar.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/code16.h>
-
-#include "i16_bios.h"
-
-CODE16
-
-void i16_putchar(int ch)
-{
-	if (ch == '\n')
-		i16_bios_putchar('\r');
-	i16_bios_putchar(ch);
-}
-
diff --git a/i386/pc/i16/i16_raw.c b/i386/pc/i16/i16_raw.c
deleted file mode 100644
index 1f705d3..0000000
--- a/i386/pc/i16/i16_raw.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-/*
-	This file rovides a default implementation
-	of real/pmode switching code.
-	Assumes that, as far as it's concerned,
-	low linear address always map to physical addresses.
-	(The low linear mappings can be changed,
-	but must be changed back before switching back to real mode.)
-
-	Provides:
-		i16_raw_switch_to_pmode()
-		i16_raw_switch_to_real_mode()
-
-		i16_raw_start()
-			Called in real mode.
-			Initializes the pmode switching system,
-			switches to pmode for the first time,
-			and calls the 32-bit function raw_start().
-
-	Depends on:
-
-		paging.h:
-			raw_paging_enable()
-			raw_paging_disable()
-			raw_paging_init()
-
-		a20.h:
-			i16_enable_a20()
-			i16_disable_a20()
-
-		real.h:
-			real_cs
-*/
-
-#include <mach/boolean.h>
-#include <mach/machine/code16.h>
-#include <mach/machine/vm_param.h>
-#include <mach/machine/proc_reg.h>
-#include <mach/machine/pio.h>
-#include <mach/machine/seg.h>
-#include <mach/machine/eflags.h>
-#include <mach/machine/pmode.h>
-
-#include "config.h"
-#include "cpu.h"
-#include "i16.h"
-#include "vm_param.h"
-#include "pic.h"
-#include "debug.h"
-#include "i16_a20.h"
-#include "i16_switch.h"
-
-int irq_master_base, irq_slave_base;
-
-/* Set to true when everything is initialized properly.  */
-static boolean_t inited;
-
-/* Saved value of eflags register for real mode.  */
-static unsigned real_eflags;
-
-
-
-#ifdef ENABLE_PAGING
-#define RAW_PAGING_ENABLE() raw_paging_enable()
-#define RAW_PAGING_DISABLE() raw_paging_disable()
-#define RAW_PAGING_INIT() raw_paging_init()
-#else
-#define RAW_PAGING_ENABLE() ((void)0)
-#define RAW_PAGING_DISABLE() ((void)0)
-#define RAW_PAGING_INIT() ((void)0)
-#endif
-
-
-CODE16
-
-void i16_raw_switch_to_pmode()
-{
-	/* No interrupts from now on please.  */
-	i16_cli();
-
-	/* Save the eflags register for switching back later.  */
-	real_eflags = get_eflags();
-
-	/* Enable the A20 address line.  */
-	i16_enable_a20();
-
-	/* Load the GDT.
-	   Note that we have to do this each time we enter pmode,
-	   not just the first,
-	   because other real-mode programs may have switched to pmode
-	   and back again in the meantime, trashing the GDT pointer.  */
-	{
-		struct pseudo_descriptor pdesc;
-
-		pdesc.limit = sizeof(cpu[0].tables.gdt)-1;
-		pdesc.linear_base = boot_image_pa
-				    + (vm_offset_t)&cpu[0].tables.gdt;
-		i16_set_gdt(&pdesc);
-	}
-
-	/* Switch into protected mode.  */
-	i16_enter_pmode(KERNEL_16_CS);
-
-	/* Reload all the segment registers from the new GDT.  */
-	set_ds(KERNEL_DS);
-	set_es(KERNEL_DS);
-	set_fs(0);
-	set_gs(0);
-	set_ss(KERNEL_DS);
-
-	i16_do_32bit(
-
-		if (inited)
-		{
-			/* Turn paging on if necessary.  */
-			RAW_PAGING_ENABLE();
-
-			/* Load the CPU tables into the processor.  */
-			cpu_tables_load(&cpu[0]);
-
-			/* Program the PIC so the interrupt vectors won't
-			   conflict with the processor exception vectors.  */
-			pic_init(PICM_VECTBASE, PICS_VECTBASE);
-		}
-
-		/* Make sure our flags register is appropriate.  */
-		set_eflags((get_eflags()
-			   & ~(EFL_IF | EFL_DF | EFL_NT))
-			   | EFL_IOPL_USER);
-	);
-}
-
-void i16_raw_switch_to_real_mode()
-{
-	/* Make sure interrupts are disabled.  */
-	cli();
-
-	/* Avoid sending DOS bogus coprocessor exceptions.
-	   XXX should we save/restore all of CR0?  */
-	i16_clts();
-
-	i16_do_32bit(
-		/* Turn paging off if necessary.  */
-		RAW_PAGING_DISABLE();
-
-		/* Reprogram the PIC back to the settings DOS expects.  */
-		pic_init(0x08, 0x70);
-	);
-
-	/* Make sure all the segment registers are 16-bit.
-	   The code segment definitely is already,
-	   because we're running 16-bit code.  */
-	set_ds(KERNEL_16_DS);
-	set_es(KERNEL_16_DS);
-	set_fs(KERNEL_16_DS);
-	set_gs(KERNEL_16_DS);
-	set_ss(KERNEL_16_DS);
-
-	/* Switch back to real mode.  */
-	i16_leave_pmode(real_cs);
-
-	/* Load the real-mode segment registers.  */
-	set_ds(real_cs);
-	set_es(real_cs);
-	set_fs(real_cs);
-	set_gs(real_cs);
-	set_ss(real_cs);
-
-	/* Load the real-mode IDT.  */
-	{
-		struct pseudo_descriptor pdesc;
-
-		pdesc.limit = 0xffff;
-		pdesc.linear_base = 0;
-		i16_set_idt(&pdesc);
-	}
-
-	/* Disable the A20 address line.  */
-	i16_disable_a20();
-
-	/* Restore the eflags register to its original real-mode state.
-	   Note that this will leave interrupts disabled
-	   since it was saved after the cli() above.  */
-	set_eflags(real_eflags);
-}
-
-void i16_raw_start()
-{
-	/* Make sure we're not already in protected mode.  */
-	if (i16_get_msw() & CR0_PE)
-		i16_die("The processor is in an unknown "
-			"protected mode environment.");
-
-	do_debug(i16_puts("Real mode detected"));
-
-	/* Minimally initialize the GDT.  */
-	i16_gdt_init_temp();
-
-	/* Switch to protected mode for the first time.
-	   This won't load all the processor tables and everything yet,
-	   since they're not fully initialized.  */
-	i16_raw_switch_to_pmode();
-
-	/* We can now hop in and out of 32-bit mode at will.  */
-	i16_do_32bit(
-
-		/* Now that we can access all physical memory,
-		   collect the memory regions we discovered while in 16-bit mode
-		   and add them to our free memory list.
-		   We can't do this before now because the free list nodes
-		   are stored in the free memory itself,
-		   which is probably out of reach of our 16-bit segments.  */
-		phys_mem_collect();
-
-		/* Initialize paging if necessary.
-		   Do it before initializing the other processor tables
-		   because they might have to be located
-		   somewhere in high linear memory.  */
-		RAW_PAGING_INIT();
-
-		/* Initialize the processor tables.  */
-		cpu_init(&cpu[0]);
-
-		/* Initialize the hardware interrupt vectors in the IDT.  */
-		irq_master_base = PICM_VECTBASE;
-		irq_slave_base = PICS_VECTBASE;
-		idt_irq_init();
-
-		inited = TRUE;
-
-		/* Switch to real mode and back again once more,
-		   to make sure everything's loaded properly.  */
-		do_16bit(
-			i16_raw_switch_to_real_mode();
-			i16_raw_switch_to_pmode();
-		);
-
-		raw_start();
-	);
-}
-
-void (*i16_switch_to_real_mode)() = i16_raw_switch_to_real_mode;
-void (*i16_switch_to_pmode)() = i16_raw_switch_to_pmode;
-
diff --git a/i386/pc/i16/i16_raw_test_a20.S b/i386/pc/i16/i16_raw_test_a20.S
deleted file mode 100644
index a934e12..0000000
--- a/i386/pc/i16/i16_raw_test_a20.S
+++ /dev/null
@@ -1,35 +0,0 @@
-
-#include <mach/machine/asm.h>
-
-	.text
-	.code16
-
-/*
- * Test the A20 address line; return true if it is enabled.
- */
-ENTRY(i16_raw_test_a20)
-	xorw	%ax,%ax
-	movw	%ax,%fs
-	notw	%ax
-	movw	%ax,%gs
-
-	/* See if the values in already in the corresponding locations
-	   are the same.  */
-	movw	%fs:0,%ax
-	cmpw	%gs:16,%ax
-	jnz	1f
-
-	/* Yes; try changing one and see if they're still the same.  */
-	movw	%ax,%dx
-	notw	%ax
-	movw	%ax,%fs:0
-	cmpw	%gs:16,%ax
-	movw	%dx,%fs:0
-	jnz	1f
-
-	xorl	%eax,%eax
-	ret
-1:
-	movl	$1,%eax
-	ret
-
diff --git a/i386/pc/i16/i16_real_int.S b/i386/pc/i16/i16_real_int.S
deleted file mode 100644
index f05077e..0000000
--- a/i386/pc/i16/i16_real_int.S
+++ /dev/null
@@ -1,84 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/asm.h>
-
-#include "pc_asm.h"
-
-	.text
-	.code16
-
-ENTRY(i16_real_int)
-	pushf
-	pushl	%ebx
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebp
-
-	cli
-
-	movl	6*4(%esp),%eax
-	movb	%al,1f+1
-
-	movl	7*4(%esp),%ebp
-	movl	RCD_EAX(%ebp),%eax
-	movl	RCD_EBX(%ebp),%ebx
-	movl	RCD_ECX(%ebp),%ecx
-	movl	RCD_EDX(%ebp),%edx
-	movl	RCD_ESI(%ebp),%esi
-	movl	RCD_EDI(%ebp),%edi
-	movw	RCD_DS(%ebp),%ds
-	movw	RCD_ES(%ebp),%es
-	/* XXX flags */
-	movl	RCD_EBP(%ebp),%ebp
-
-1:	int	$0
-
-	pushl	%ebp
-	movl	8*4(%esp),%ebp
-	popl	RCD_EBP(%ebp)
-
-	movl	%eax,RCD_EAX(%ebp)
-	movl	%ebx,RCD_EBX(%ebp)
-	movl	%ecx,RCD_ECX(%ebp)
-	movl	%edx,RCD_EDX(%ebp)
-	movl	%esi,RCD_ESI(%ebp)
-	movl	%edi,RCD_EDI(%ebp)
-	movw	%ds,RCD_DS(%ebp)
-	movw	%es,RCD_ES(%ebp)
-
-	pushf
-	popl	%eax
-	movw	%ax,RCD_FLAGS(%ebp)
-
-	movw	%ss,%ax
-	movw	%ax,%ds
-	movw	%ax,%es
-
-	popl	%ebp
-	popl	%edi
-	popl	%esi
-	popl	%ebx
-	popf
-	ret
-
diff --git a/i386/pc/i16/i16_switch.h b/i386/pc/i16/i16_switch.h
deleted file mode 100644
index b7ecf18..0000000
--- a/i386/pc/i16/i16_switch.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-#ifndef _I386_PC_SWITCH_H_
-#define _I386_PC_SWITCH_H_
-
-/* Vectors to routines to switch between real and protected mode.  */
-extern void (*i16_switch_to_real_mode)();
-extern void (*i16_switch_to_pmode)();
-
-#endif _I386_PC_SWITCH_H_
diff --git a/i386/pc/i16/phys_mem_collect.c b/i386/pc/i16/phys_mem_collect.c
deleted file mode 100644
index bcb0c09..0000000
--- a/i386/pc/i16/phys_mem_collect.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* 
- * Copyright (c) 1995 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/vm_param.h>
-
-#include "phys_mem.h"
-
-void phys_mem_collect(void)
-{
-#define pms(name) name##_collect();
-#include "phys_mem_sources.h"
-#undef pms
-}
-
diff --git a/i386/pc/i16/phys_mem_sources.h b/i386/pc/i16/phys_mem_sources.h
deleted file mode 100644
index 788910d..0000000
--- a/i386/pc/i16/phys_mem_sources.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-pms(ext_mem)
-
diff --git a/i386/pc/i16/raw_exit.c b/i386/pc/i16/raw_exit.c
deleted file mode 100644
index 5ccb69a..0000000
--- a/i386/pc/i16/raw_exit.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/seg.h>
-#include <mach/machine/proc_reg.h>
-
-#include "i16.h"
-#include "debug.h"
-
-
-void raw_exit(int rc)
-{
-	do_16bit(
-		i16_raw_switch_to_real_mode();
-		i16_exit(rc);
-		while (1);
-	);
-}
-
-void (*real_exit)(int rc) = raw_exit;
-
diff --git a/i386/pc/i16/raw_real_int.c b/i386/pc/i16/raw_real_int.c
deleted file mode 100644
index a76d8ca..0000000
--- a/i386/pc/i16/raw_real_int.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/* 
- * Copyright (c) 1995-1994 The University of Utah and
- * the Computer Systems Laboratory at the University of Utah (CSL).
- * All rights reserved.
- *
- * Permission to use, copy, modify and distribute this software is hereby
- * granted provided that (1) source code retains these copyright, permission,
- * and disclaimer notices, and (2) redistributions including binaries
- * reproduce the notices in supporting documentation, and (3) all advertising
- * materials mentioning features or use of this software display the following
- * acknowledgement: ``This product includes software developed by the
- * Computer Systems Laboratory at the University of Utah.''
- *
- * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
- * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
- * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * CSL requests users of this software to return to csl-dist@cs.utah.edu any
- * improvements that they make and grant CSL redistribution rights.
- *
- *      Author: Bryan Ford, University of Utah CSL
- */
-
-#include <mach/machine/seg.h>
-#include <mach/machine/proc_reg.h>
-
-#include "real.h"
-#include "i16.h"
-#include "debug.h"
-
-
-void raw_real_int(int intnum, struct real_call_data *rcd)
-{
-	assert((get_cs() & 3) == 0);
-
-	do_16bit(
-		unsigned int eflags;
-
-		i16_raw_switch_to_real_mode();
-		i16_real_int(intnum, rcd);
-		i16_raw_switch_to_pmode();
-	);
-}
-
-void (*real_int)(int intnum, struct real_call_data *rcd) = raw_real_int;
-