Added xorg-server-1.6.2.tar.gz

1 files changed, 0 insertions, 764 deletions

diff --git a/xorg-server/hw/kdrive/vesa/vm86.c b/xorg-server/hw/kdrive/vesa/vm86.c
deleted file mode 100644
index 0f7bb2262..000000000
--- a/xorg-server/hw/kdrive/vesa/vm86.c
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * Copyright © 2000 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-/* 
-Copyright (c) 2000 by Juliusz Chroboczek
- 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions: 
- 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software. 
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <kdrive-config.h>
-#endif
-#include "vm86.h"
-
-#define PUSHW(vi, i) \
-{ vi->vms.regs.esp -= 2;\
-  LMW(vi,MAKE_POINTER(vi->vms.regs.ss, vi->vms.regs.esp)) = i;}
-
-static int vm86old(struct vm86_struct *vms);
-static int vm86_loop(Vm86InfoPtr vi);
-
-static const U8 rev_ints[32] =
-{ 0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0,
-  0, 0, 0, 0, 0, 0, 0, 0x80,
-};
-
-static const U8 retcode_data[2] =
-{ 0xCD, 0xFF };
-
-Vm86InfoPtr
-Vm86Setup(int mapHoles)
-{
-    int devmem = -1, devzero = -1;
-    void *magicMem, *loMem, *hiMem;
-    void *hole1, *hole2;
-    U32 stack_base, ret_code;
-    Vm86InfoPtr vi = NULL;
-
-    devmem = open("/dev/mem", O_RDWR);
-    if(devmem < 0) {
-	perror("open /dev/mem");
-	goto fail;
-    }
-
-    devzero = open("/dev/zero", O_RDWR);
-    if(devzero < 0) {
-	perror("open /dev/zero");
-	goto fail;
-    }
-
-    magicMem = MAP_FAILED;
-    loMem = MAP_FAILED;
-    hiMem = MAP_FAILED;
-    hole1 = MAP_FAILED;
-    hole2 = MAP_FAILED;
-
-
-    magicMem = mmap((void*)MAGICMEM_BASE, MAGICMEM_SIZE,
-		    PROT_READ | PROT_WRITE | PROT_EXEC,
-		    MAP_PRIVATE | MAP_FIXED, devmem, MAGICMEM_BASE);
-    
-    if(magicMem == MAP_FAILED) {
-	ErrorF("Couldn't map magic memory\n");
-	goto unmapfail;
-    }
-
-    if(mapHoles) {
-        hole1 = mmap((void*)HOLE1_BASE, HOLE1_SIZE,
-                     PROT_READ | PROT_WRITE | PROT_EXEC,
-                     MAP_PRIVATE | MAP_FIXED, devzero, HOLE1_BASE);
-    
-        if(hole1 == MAP_FAILED) {
-            ErrorF("Couldn't map first hole\n");
-            goto unmapfail;
-        }
-    }
-
-    loMem = mmap((void*)LOMEM_BASE, LOMEM_SIZE,
-		 PROT_READ | PROT_WRITE | PROT_EXEC,
-		 MAP_PRIVATE | MAP_FIXED, devzero, LOMEM_BASE);
-    if(loMem == MAP_FAILED) {
-	ErrorF("Couldn't map low memory\n");
-	munmap(magicMem, MAGICMEM_SIZE);
-	goto unmapfail;
-    }
-
-    if(mapHoles) {
-        hole2 = mmap((void*)HOLE2_BASE, HOLE2_SIZE,
-                     PROT_READ | PROT_WRITE | PROT_EXEC,
-                     MAP_PRIVATE | MAP_FIXED, devzero, HOLE2_BASE);
-    
-        if(hole2 == MAP_FAILED) {
-            ErrorF("Couldn't map first hole\n");
-            goto unmapfail;
-        }
-    }
-
-    hiMem = mmap((void*)HIMEM_BASE, HIMEM_SIZE,
-		 PROT_READ | PROT_WRITE | PROT_EXEC,
-		 MAP_SHARED | MAP_FIXED,
-		 devmem, HIMEM_BASE);
-    if(hiMem == MAP_FAILED) {
-	ErrorF("Couldn't map high memory\n");
-	goto unmapfail;
-    }
-
-    vi = xalloc(sizeof(Vm86InfoRec));
-    if (!vi)
-	goto unmapfail;
-
-    vi->magicMem = magicMem;
-    vi->hole1 = hole1;
-    vi->loMem = loMem;
-    vi->hole2 = hole2;
-    vi->hiMem = hiMem;
-    vi->brk = LOMEM_BASE;
-
-    stack_base = Vm86AllocateMemory(vi, STACK_SIZE);
-    if(stack_base == ALLOC_FAIL)
-	goto unmapfail;
-    ret_code = Vm86AllocateMemory(vi, sizeof(retcode_data));
-    if(ret_code == ALLOC_FAIL)
-	goto unmapfail;
-
-    vi->stack_base = stack_base;
-    vi->ret_code = ret_code;
-
-    memset(&vi->vms, 0, sizeof(struct vm86_struct));
-    vi->vms.flags = 0;
-    vi->vms.screen_bitmap = 0;
-    vi->vms.cpu_type = CPU_586;
-    memcpy(&vi->vms.int_revectored, rev_ints, sizeof(rev_ints));
-
-    iopl(3);
-    
-    if(devmem >= 0)
-	close(devmem);
-    if(devzero >= 0)
-	close(devzero);
-
-    return vi;
-
-unmapfail:
-    if(magicMem != MAP_FAILED) munmap(magicMem, MAGICMEM_SIZE);
-    if(hole1 != MAP_FAILED) munmap(hole1, HOLE1_SIZE);
-    if(loMem != MAP_FAILED) munmap(loMem, LOMEM_SIZE);
-    if(hole2 != MAP_FAILED) munmap(hole2, HOLE2_SIZE);
-    if(hiMem != MAP_FAILED) munmap(hiMem, HIMEM_SIZE);
-fail:
-    if(devmem >= 0)
-	close(devmem);
-    if(devzero >= 0)
-	close(devzero);
-    if(vi)
-	xfree(vi);
-    return NULL;
-}
-
-void
-Vm86Cleanup(Vm86InfoPtr vi)
-{
-    if(vi->magicMem != MAP_FAILED) munmap(vi->magicMem, MAGICMEM_SIZE);
-    if(vi->hole1 != MAP_FAILED) munmap(vi->hole1, HOLE1_SIZE);
-    if(vi->loMem != MAP_FAILED) munmap(vi->loMem, LOMEM_SIZE);
-    if(vi->hole2 != MAP_FAILED) munmap(vi->hole2, HOLE2_SIZE);
-    if(vi->hiMem != MAP_FAILED) munmap(vi->hiMem, HIMEM_SIZE);
-    xfree(vi);
-}
-
-int
-Vm86DoInterrupt(Vm86InfoPtr vi, int num)
-{
-    U16 seg, off;
-    int code;
-
-    if(num < 0 || num>256) {
-	ErrorF("Interrupt %d doesn't exist\n");
-	return -1;
-    }
-    seg = MMW(vi,num * 4 + 2);
-    off = MMW(vi,num * 4);
-    if(MAKE_POINTER(seg, off) < ROM_BASE ||
-       MAKE_POINTER(seg, off) >= ROM_BASE + ROM_SIZE) {
-	ErrorF("Interrupt pointer (seg %x off %x) doesn't point at ROM\n",
-	       seg, off);
-	return -1;
-    }
-    memcpy(&(LM(vi,vi->ret_code)), retcode_data, sizeof(retcode_data));
-    vi->vms.regs.eflags = IF_MASK | IOPL_MASK;
-    vi->vms.regs.ss = POINTER_SEGMENT(vi->stack_base);
-    vi->vms.regs.esp = STACK_SIZE;
-    PUSHW(vi, IF_MASK | IOPL_MASK);
-    PUSHW(vi, POINTER_SEGMENT(vi->ret_code));
-    PUSHW(vi, POINTER_OFFSET(vi->ret_code));
-    vi->vms.regs.cs = seg;
-    vi->vms.regs.eip = off;
-    OsBlockSignals ();
-    code = vm86_loop(vi);
-    OsReleaseSignals ();
-    if(code != 0)
-	return -1;
-    else
-	return 0;
-}
-
-int
-Vm86DoPOST(Vm86InfoPtr vi)
-{
-    U16 seg, off;
-    int code;
-
-    seg = 0xC000;
-    off = 3;
-    if(MAKE_POINTER(seg, off) < ROM_BASE ||
-       MAKE_POINTER(seg, off) >= ROM_BASE + ROM_SIZE) {
-	ErrorF("BIOS pointer (seg %x off %x) doesn't point at ROM\n",
-	       seg, off);
-	return -1;
-    }
-    memcpy(&(LM(vi,vi->ret_code)), retcode_data, sizeof(retcode_data));
-    vi->vms.regs.ss = POINTER_SEGMENT(vi->stack_base);
-    vi->vms.regs.esp = STACK_SIZE;
-    PUSHW(vi, POINTER_SEGMENT(vi->ret_code));
-    PUSHW(vi, POINTER_OFFSET(vi->ret_code));
-    vi->vms.regs.cs = seg;
-    vi->vms.regs.eip = off;
-    OsBlockSignals ();
-    code = vm86_loop(vi);
-    OsReleaseSignals ();
-    if(code != 0)
-	return -1;
-    else
-        return 0;
-}
-
-#define DEBUG_VBE 0
-#if DEBUG_VBE
-#define DBG(x) ErrorF x; usleep(10*1000)
-#else
-#define DBG(x)
-#endif
-
-static inline U8 
-vm86_inb(U16 port)
-{
-    U8 value;
-    
-    if (port != 0x3da)
-    {
-	DBG(("inb  0x%04x", port));
-    }
-    asm volatile ("inb %w1,%b0" : "=a" (value) : "d" (port));
-    if (port != 0x3da)
-    {
-	DBG((" = 0x%02x\n", value));
-    }
-    return value;
-}
-
-static inline U16
-vm86_inw(U16 port)
-{
-    U16 value;
-    DBG(("inw  0x%04x", port));
-    asm volatile ("inw %w1,%w0" : "=a" (value) : "d" (port));
-    DBG((" = 0x%04x\n", value));
-    return value;
-}
-
-static inline U32
-vm86_inl(U16 port)
-{
-    U32 value;
-    DBG(("inl  0x%04x", port));
-    asm volatile ("inl %w1,%0" : "=a" (value) : "d" (port));
-    DBG((" = 0x%08x\n", value));
-    return value;
-}
-
-static inline void
-vm86_outb(U16 port, U8 value)
-{
-#if 0
-    static U8 CR;
-
-    if (port == 0x3d4)
-	CR = value;
-    if (port == 0x3d5 && CR == 0xa4)
-    {
-	DBG(("outb 0x%04x = 0x%02x (skipped)\n", port, value));
-	return;
-    }
-#endif
-    DBG(("outb 0x%04x = 0x%02x\n", port, value));
-    asm volatile ("outb %b0,%w1" : : "a" (value), "d" (port));
-}
-
-static inline void
-vm86_outw(U16 port, U16 value)
-{
-    DBG(("outw 0x%04x = 0x%04x\n", port, value));
-    asm volatile ("outw %w0,%w1" : : "a" (value), "d" (port));
-}
-
-static inline void
-vm86_outl(U16 port, U32 value)
-{
-    DBG(("outl 0x%04x = 0x%08x\n", port, value));
-    asm volatile ("outl %0,%w1" : : "a" (value), "d" (port));
-}
-
-#define SEG_CS 1
-#define SEG_DS 2
-#define SEG_ES 3
-#define SEG_SS 4
-#define SEG_GS 5
-#define SEG_FS 6
-#define REP 1
-#define REPNZ 2
-#define SET_8(_x, _y) (_x) = ((_x) & ~0xFF) | ((_y) & 0xFF);
-#define SET_16(_x, _y) (_x) = ((_x) & ~0xFFFF) | ((_y) & 0xFFFF);
-#define INC_IP(_i) SET_16(regs->eip, (regs->eip + _i))
-#define AGAIN INC_IP(1); goto again;
-
-static int
-vm86_emulate(Vm86InfoPtr vi)
-{
-    struct vm86_regs *regs = &vi->vms.regs;
-    U8 opcode;
-    int size;
-    int pref_seg = 0, pref_rep = 0, pref_66 = 0, pref_67 = 0;
-
-  again:
-    if(!Vm86IsMemory(vi, MAKE_POINTER(regs->cs, regs->eip))) {
-        ErrorF("Trying to execute unmapped memory\n");
-        return -1;
-    }
-    opcode = Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip));
-    switch(opcode) {
-    case 0x2E: pref_seg = SEG_CS; AGAIN;
-    case 0x3E: pref_seg = SEG_DS; AGAIN;
-    case 0x26: pref_seg = SEG_ES; AGAIN;
-    case 0x36: pref_seg = SEG_SS; AGAIN;
-    case 0x65: pref_seg = SEG_GS; AGAIN;
-    case 0x64: pref_seg = SEG_FS; AGAIN;
-    case 0x66: pref_66 = 1; AGAIN;
-    case 0x67: pref_67 = 1; AGAIN;
-    case 0xF2: pref_rep = REPNZ; AGAIN;
-    case 0xF3: pref_rep = REP; AGAIN;
-
-    case 0xEC:                  /* IN AL, DX */
-        SET_8(regs->eax, vm86_inb(regs->edx & 0xFFFF));
-        INC_IP(1);
-        break;
-    case 0xED:                  /* IN AX, DX */
-        if(pref_66)
-            regs->eax = vm86_inl(regs->edx & 0xFFFF);
-        else
-            SET_16(regs->eax, vm86_inw(regs->edx & 0xFFFF));
-	INC_IP(1);
-        break;
-    case 0xE4:                  /* IN AL, imm8 */
-        SET_8(regs->eax, 
-              vm86_inb(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1))));
-        INC_IP(2);
-        break;
-    case 0xE5:                  /* IN AX, imm8 */
-        if(pref_66)
-            regs->eax =
-                vm86_inl(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1)));
-        else
-            SET_16(regs->eax, 
-                   vm86_inw(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1))));
-        INC_IP(2);
-        break;
-    case 0x6C:                  /* INSB */
-    case 0x6D:                  /* INSW */
-        if(opcode == 0x6C) {
-            Vm86WriteMemory(vi, MAKE_POINTER(regs->es, regs->edi),
-                vm86_inb(regs->edx & 0xFFFF));
-            size = 1;
-        } else if(pref_66) {
-            Vm86WriteMemoryL(vi, MAKE_POINTER(regs->es, regs->edi),
-                vm86_inl(regs->edx & 0xFFFF));
-            size = 4;
-        } else {
-            Vm86WriteMemoryW(vi, MAKE_POINTER(regs->es, regs->edi),
-                vm86_inw(regs->edx & 0xFFFF));
-            size = 2;
-        }
-        if(regs->eflags & (1<<10))
-            regs->edi -= size;
-        else
-            regs->edi += size;
-        if(pref_rep) {
-            if(pref_66) {
-                regs->ecx--;
-                if(regs->ecx != 0)
-                    goto again;
-            } else {
-                SET_16(regs->ecx, regs->ecx - 1);
-                if((regs->ecx & 0xFFFF) != 0)
-                    goto again;
-            }
-        }
-        INC_IP(1);
-        break;
-
-    case 0xEE:                  /* OUT DX, AL */
-        vm86_outb(regs->edx & 0xFFFF, regs->eax & 0xFF);
-        INC_IP(1);
-        break;
-    case 0xEF:                  /* OUT DX, AX */
-        if(pref_66)
-            vm86_outl(regs->edx & 0xFFFF, regs->eax);
-        else
-            vm86_outw(regs->edx & 0xFFFF, regs->eax & 0xFFFF);
-        INC_IP(1);
-        break;
-    case 0xE6:                  /* OUT imm8, AL */
-        vm86_outb(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1)),
-             regs->eax & 0xFF);
-        INC_IP(2);
-        break;
-    case 0xE7:                  /* OUT imm8, AX */
-        if(pref_66)
-            vm86_outl(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1)),
-                  regs->eax);
-        else
-            vm86_outw(Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip+1)),
-                 regs->eax & 0xFFFF);
-        INC_IP(2);
-        break;
-    case 0x6E:                  /* OUTSB */
-    case 0x6F:                  /* OUTSW */
-        if(opcode == 0x6E) {
-            vm86_outb(regs->edx & 0xFFFF, 
-                 Vm86Memory(vi, MAKE_POINTER(regs->es, regs->edi)));
-            size = 1;
-        } else if(pref_66) {
-            vm86_outl(regs->edx & 0xFFFF, 
-                 Vm86Memory(vi, MAKE_POINTER(regs->es, regs->edi)));
-            size = 4;
-        } else {
-            vm86_outw(regs->edx & 0xFFFF, 
-                 Vm86Memory(vi, MAKE_POINTER(regs->es, regs->edi)));
-            size = 2;
-        }
-        if(regs->eflags & (1<<10))
-            regs->edi -= size;
-        else
-            regs->edi += size;
-        if(pref_rep) {
-            if(pref_66) {
-                regs->ecx--;
-                if(regs->ecx != 0)
-                    goto again;
-            } else {
-                SET_16(regs->ecx, regs->ecx - 1);
-                if((regs->ecx & 0xFFFF) != 0)
-                    goto again;
-            }
-        }
-        INC_IP(1);
-        break;
-
-    case 0x0F:
-        ErrorF("Hit 0F trap in VM86 code\n");
-        return -1;
-    case 0xF0:
-        ErrorF("Hit lock prefix in VM86 code\n");
-        return -1;
-    case 0xF4:
-        ErrorF("Hit HLT in VM86 code\n");
-        return -1;
-
-    default:
-        ErrorF("Unhandled GP fault in VM86 code (opcode = 0x%02X)\n",
-               opcode);
-        return -1;
-    }
-    return 0;
-}
-#undef SEG_CS
-#undef SEG_DS
-#undef SEG_ES
-#undef SEG_SS
-#undef SEG_GS
-#undef SEG_FS
-#undef REP
-#undef REPNZ
-#undef SET_8
-#undef SET_16
-#undef INC_IP
-#undef AGAIN
-
-static int
-vm86_loop(Vm86InfoPtr vi)
-{
-    int code;
-    
-    while(1) {
-        code = vm86old(&vi->vms);
-        switch(VM86_TYPE(code)) {
-        case VM86_SIGNAL:
-            continue;
-        case VM86_UNKNOWN:
-            code = vm86_emulate(vi);
-            if(code < 0) {
-                Vm86Debug(vi);
-                return -1;
-            }
-            break;
-        case VM86_INTx:
-            if(VM86_ARG(code) == 0xFF)
-                return 0;
-            else {
-                PUSHW(vi, vi->vms.regs.eflags)
-                PUSHW(vi, vi->vms.regs.cs);
-                PUSHW(vi, vi->vms.regs.eip);
-                vi->vms.regs.cs = MMW(vi,VM86_ARG(code) * 4 + 2);
-                vi->vms.regs.eip = MMW(vi,VM86_ARG(code) * 4);
-            }
-            break;
-        case VM86_STI:
-            ErrorF("VM86 code enabled interrupts\n");
-            Vm86Debug(vi);
-            return -1;
-        default:
-            if(code < 0) {
-                if(errno == ENOSYS) {
-                    ErrorF("No vm86 support.  Are you running on AMD64?\n");
-                } else {
-                    ErrorF("vm86 failed (%s).\n", strerror(errno));
-                    Vm86Debug(vi);
-                }
-            } else {
-                ErrorF("Unexpected result code 0x%X from vm86\n", code);
-                Vm86Debug(vi);
-            }
-            return -1;
-        }
-    }
-}
-
-int 
-Vm86IsMemory(Vm86InfoPtr vi, U32 i) 
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        return 1;
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        return 1;
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        return 1;
-    else
-        return 0;
-}
-
-U8 
-Vm86Memory(Vm86InfoPtr vi, U32 i)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        return MM(vi, i);
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        return LM(vi, i);
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        return HM(vi, i);
-    else {
-        ErrorF("Reading unmapped memory at 0x%08X\n", i);
-	return 0;
-    }
-}
-
-U16
-Vm86MemoryW(Vm86InfoPtr vi, U32 i)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        return MMW(vi, i);
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        return LMW(vi, i);
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        return HMW(vi, i);
-    else {
-        ErrorF("Reading unmapped memory at 0x%08X\n", i);
-        return 0;
-    }
-}
-
-U32
-Vm86MemoryL(Vm86InfoPtr vi, U32 i)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        return MML(vi, i);
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        return LML(vi, i);
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        return HML(vi, i);
-    else {
-        ErrorF("Reading unmapped memory at 0x%08X\n", i);
-        return 0;
-    }
-}
-
-void
-Vm86WriteMemory(Vm86InfoPtr vi, U32 i, U8 val)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        MM(vi, i) = val;
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        LM(vi, i) = val;
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        HM(vi, i) = val;
-    else {
-        ErrorF("Writing unmapped memory at 0x%08X\n", i);
-    }
-}
-
-void
-Vm86WriteMemoryW(Vm86InfoPtr vi, U32 i, U16 val)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        MMW(vi, i) = val;
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        LMW(vi, i) = val;
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        HMW(vi, i) = val;
-    else {
-        ErrorF("Writing unmapped memory at 0x%08X\n", i);
-    }
-}
-
-void
-Vm86WriteMemoryL(Vm86InfoPtr vi, U32 i, U32 val)
-{
-    if(i >= MAGICMEM_BASE && i< MAGICMEM_BASE + MAGICMEM_SIZE)
-        MML(vi, i) = val;
-    else if(i >= LOMEM_BASE && i< LOMEM_BASE + LOMEM_SIZE)
-        LML(vi, i) = val;
-    else if(i >= HIMEM_BASE && i< HIMEM_BASE + HIMEM_SIZE)
-        HML(vi, i) = val;
-    else {
-        ErrorF("Writing unmapped memory at 0x%08X\n", i);
-    }
-}
-
-int
-Vm86AllocateMemory(Vm86InfoPtr vi, int n)
-{
-    int ret;
-    if(n<0) {
-        ErrorF("Asked to allocate negative amount of memory\n");
-        return vi->brk;
-    }
-      
-    n = (n + 15) & ~15;
-    if(vi->brk + n > LOMEM_BASE + LOMEM_SIZE) {
-        ErrorF("Out of low memory\n");
-        exit(2);
-    }
-    ret = vi->brk;
-    vi->brk += n;
-    return ret;
-}
-
-int
-Vm86MarkMemory (Vm86InfoPtr vi)
-{
-    return vi->brk;
-}
-
-void
-Vm86ReleaseMemory (Vm86InfoPtr vi, int mark)
-{
-    vi->brk = mark;
-}
-
-static int
-vm86old(struct vm86_struct *vm)
-{
-    int res;
-    
-    asm volatile (
-	"pushl %%ebx\n\t"
-	"movl %2, %%ebx\n\t"
-	"movl %1,%%eax\n\t"
-	"int $0x80\n\t"
-	"popl %%ebx"
-	: "=a" (res)  : "n" (113), "r" (vm));
-    if(res < 0) {
-	errno = -res;
-	res = -1;
-    } else 
-	errno = 0;
-    return res;
-}
-
-void
-Vm86Debug(Vm86InfoPtr vi)
-{
-    struct vm86_regs *regs = &vi->vms.regs;
-    int i;
-
-    ErrorF("eax=0x%08lX ebx=0x%08lX ecx=0x%08lX edx=0x%08lX\n",
-           regs->eax, regs->ebx, regs->ecx, regs->edx);
-    ErrorF("esi=0x%08lX edi=0x%08lX ebp=0x%08lX\n",
-           regs->esi, regs->edi, regs->ebp);
-    ErrorF("eip=0x%08lX esp=0x%08lX eflags=0x%08lX\n",
-           regs->eip, regs->esp, regs->eflags);
-    ErrorF("cs=0x%04lX      ds=0x%04lX      es=0x%04lX      fs=0x%04lX      gs=0x%04lX\n",
-           regs->cs, regs->ds, regs->es, regs->fs, regs->gs);
-    for(i=-7; i<8; i++) {
-        ErrorF(" %s%02X",
-               i==0?"->":"",
-               Vm86Memory(vi, MAKE_POINTER(regs->cs, regs->eip + i)));
-    }
-    ErrorF("\n");
-}
-
-#ifdef NOT_IN_X_SERVER
-static void 
-ErrorF(char *f, ...)
-{
-    va_list args;
-    va_start(args, f);
-    vfprintf(stderr, f, args);
-    va_end(args);
-}
-#endif