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Add support for XMS memory to doscmd.
Submitted by: Helmut F. Wirth <hfwirth@ping.at>
This commit is contained in:
Jonathan Lemon
parent
fd2e6bbaa6
commit
d4e591ffcb
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28243
@ -1,15 +1,13 @@
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# from BSDI Makefile,v 2.6 1996/04/08 20:06:40 bostic Exp
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#
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# $Id: Makefile,v 1.3 1997/08/09 20:04:04 ache Exp $
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# $Id: Makefile,v 1.4 1997/08/12 16:08:02 ache Exp $
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PROG= doscmd
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MAN1= doscmd.1
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SRCS= AsyncIO.c ParseBuffer.c \
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bios.c callback.c cpu.c dos.c cmos.c config.c cwd.c debug.c disktab.c doscmd.c \
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exe.c i386-pinsn.c int.c \
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int10.c int13.c int14.c int16.c int17.c \
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int1a.c int2f.c intff.c \
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mem.c mouse.c net.c port.c setver.c signal.c timer.c trace.c trap.c tty.c xms.c
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SRCS= AsyncIO.c ParseBuffer.c bios.c callback.c cpu.c dos.c cmos.c config.c \
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cwd.c debug.c disktab.c doscmd.c exe.c i386-pinsn.c int.c int10.c \
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int13.c int14.c int16.c int17.c int1a.c int2f.c intff.c mem.c mouse.c \
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net.c port.c setver.c signal.c timer.c trace.c trap.c tty.c xms.c
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CLEANFILES= doscmd.kernel crt0.o doscmd_loader.o instbsdi.exe
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@ -29,7 +29,7 @@
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*
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* BSDI bios.c,v 2.3 1996/04/08 19:32:19 bostic Exp
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*
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* $Id: bios.c,v 1.4 1996/09/22 15:42:47 miff Exp $
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* $Id: bios.c,v 1.1 1997/08/09 01:42:33 dyson Exp $
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*/
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#include "doscmd.h"
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@ -137,7 +137,7 @@ int15(regcontext_t *REGS)
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*/
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break;
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case 0x88:
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R_AX = 0; /* memory past 1M */
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get_raw_extmemory_info(REGS);
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break;
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case 0xc0: /* get configuration */
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debug (D_TRAPS|0x15, "Get configuration\n", R_DX);
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@ -250,6 +250,11 @@ Same as
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.\"
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.\"
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.\"
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.It Fl X
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Enable debugging of the XMS operations.
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.\"
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.\"
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.\"
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.It Fl x
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Open an X11 window to display output. This enables a
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variety interrupts not available otherwise. This
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@ -29,7 +29,7 @@
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*
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* BSDI doscmd.c,v 2.3 1996/04/08 19:32:30 bostic Exp
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*
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* $Id: doscmd.c,v 1.10 1997/03/18 02:36:55 msmith Exp $
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* $Id: doscmd.c,v 1.1 1997/08/09 01:42:41 dyson Exp $
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*/
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#include <sys/types.h>
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@ -96,9 +96,6 @@ static char *envs[256];
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static char *dos_path = 0;
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char cmdname[256]; /* referenced from dos.c */
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/* high memory mapfile */
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static char *memfile = "/tmp/doscmd.XXXXXX";
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static struct i386_vm86_args vm86;
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static struct vm86_init_args kargs;
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@ -116,7 +113,6 @@ main(int argc, char **argv)
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int fd;
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int i;
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char buffer[4096];
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int mfd;
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FILE *fp;
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@ -142,29 +138,7 @@ main(int argc, char **argv)
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setbuf (stdout, NULL);
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}
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mfd = mkstemp(memfile);
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if (mfd < 0) {
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fprintf(stderr, "memfile: %s\n", strerror(errno));
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fprintf(stderr, "High memory will not be mapped\n");
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} else {
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caddr_t add;
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unlink(memfile);
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mfd = squirrel_fd(mfd);
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lseek(mfd, 64 * 1024 - 1, 0);
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write(mfd, "", 1);
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add = mmap((caddr_t)0x000000, 64 * 1024,
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PROT_EXEC | PROT_READ | PROT_WRITE,
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MAP_FILE | MAP_FIXED | MAP_INHERIT | MAP_SHARED,
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mfd, 0);
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add = mmap((caddr_t)0x100000, 64 * 1024,
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PROT_EXEC | PROT_READ | PROT_WRITE,
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MAP_FILE | MAP_FIXED | MAP_INHERIT | MAP_SHARED,
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mfd, 0);
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}
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initHMA();
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/* This needs to happen before the executable is loaded */
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mem_init();
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@ -595,6 +569,9 @@ do_args(int argc, char *argv[])
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case 'R':
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debug_flags |= D_REDIR;
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break;
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case 'X':
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debug_flags |= D_XMS;
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break;
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case 'L':
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debug_flags |= D_PRINTER;
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break;
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@ -29,7 +29,7 @@
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*
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* BSDI doscmd.h,v 2.3 1996/04/08 19:32:32 bostic Exp
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*
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* $Id: doscmd.h,v 1.9 1996/09/23 09:59:25 miff Exp $
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* $Id: doscmd.h,v 1.1 1997/08/09 01:43:09 dyson Exp $
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*/
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@ -106,6 +106,7 @@ extern int debug_flags;
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#define D_TRAPS3 0x0200000
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#define D_DEBUGIN 0x0400000
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#define D_DOSCALL 0x0800000 /* MS-DOS function results */
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#define D_XMS 0x1000000 /* XMS calls */
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#define TTYF_ECHO 0x00000001
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#define TTYF_ECHONL 0x00000003
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@ -230,6 +231,9 @@ extern void printer_timeout(int printer, char *time_out);
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/* xms.c */
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extern int int2f_43(regcontext_t *REGS);
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extern void get_raw_extmemory_info(regcontext_t *REGS);
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extern void initHMA(void);
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extern u_long xms_maxsize;
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/****************************** dirty below here ******************************/
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1056
usr.bin/doscmd/xms.c
1056
usr.bin/doscmd/xms.c
File diff suppressed because it is too large
Load Diff
145
usr.bin/doscmd/xms.h
Normal file
145
usr.bin/doscmd/xms.h
Normal file
@ -0,0 +1,145 @@
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/*-
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* Copyright (c) 1997 Helmut Wirth <hfwirth@ping.at>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, witout modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef XMS_H
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#define XMS_H
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#define XMS_VERSION 0x0300 /* version 3.00 */
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#define XMS_REVISION 0x0100 /* driver revision 1.0 */
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#define NUM_HANDLES 64 /* number of available handles */
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#define FIRST_HANDLE 1 /* number of firts valid handle */
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#define PARAGRAPH 16 /* bytes in a paragraph */
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#define MAX_BLOCK_LOCKS 256 /* number of locks on a block */
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#define DEFAULT_EMM_SIZE 512 * 1024 /* default EMM size */
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/* Register AH codes for XMS functions */
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#define XMS_GET_VERSION 0x00
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#define XMS_ALLOCATE_HIGH_MEMORY 0x01
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#define XMS_FREE_HIGH_MEMORY 0x02
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#define XMS_GLOBAL_ENABLE_A20 0x03
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#define XMS_GLOBAL_DISABLE_A20 0x04
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#define XMS_LOCAL_ENABLE_A20 0x05
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#define XMS_LOCAL_DISABLE_A20 0x06
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#define XMS_QUERY_A20 0x07
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#define XMS_QUERY_FREE_EXTENDED_MEMORY 0x08
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#define XMS_ALLOCATE_EXTENDED_MEMORY 0x09
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#define XMS_FREE_EXTENDED_MEMORY 0x0a
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#define XMS_MOVE_EXTENDED_MEMORY_BLOCK 0x0b
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#define XMS_LOCK_EXTENDED_MEMORY_BLOCK 0x0c
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#define XMS_UNLOCK_EXTENDED_MEMORY_BLOCK 0x0d
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#define XMS_GET_EMB_HANDLE_INFORMATION 0x0e
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#define XMS_RESIZE_EXTENDED_MEMORY_BLOCK 0x0f
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#define XMS_ALLOCATE_UMB 0x10
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#define XMS_DEALLOCATE_UMB 0x11
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#define XMS_REALLOCATE_UMB 0x12
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/* New functions for values bigger than 65MB, not implented yet */
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#define XMS_QUERY_FREE_EXTENDED_MEMORY_LARGE 0x88
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#define XMS_ALLOCATE_EXTENDED_MEMORY_LARGE 0x89
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#define XMS_FREE_EXTENDED_MEMORY_LARGE 0x8a
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/* XMS error return codes */
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#define XMS_SUCCESS 0x0
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#define XMS_NOT_IMPLEMENTED 0x80
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#define XMS_VDISK 0x81 /* If vdisk.sys is present */
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#define XMS_A20_ERROR 0x82
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#define XMS_GENERAL_ERROR 0x8e
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#define XMS_HMA_NOT_MANAGED 0x90
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#define XMS_HMA_ALREADY_USED 0x91
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#define XMS_HMA_NOT_ALLOCATED 0x93
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#define XMS_A20_STILL_ENABLED 0x94
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#define XMS_FULL 0xa0
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#define XMS_OUT_OF_HANDLES 0xa1
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#define XMS_INVALID_HANDLE 0xa2
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#define XMS_INVALID_SOURCE_HANDLE 0xa3
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#define XMS_INVALID_SOURCE_OFFSET 0xa4
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#define XMS_INVALID_DESTINATION_HANDLE 0xa5
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#define XMS_INVALID_DESTINATION_OFFSET 0xa6
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#define XMS_INVALID_LENGTH 0xa7
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#define XMS_BLOCK_NOT_LOCKED 0xaa
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#define XMS_BLOCK_IS_LOCKED 0xab
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#define XMS_BLOCK_LOCKCOUNT_OVERFLOW 0xac
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#define XMS_REQUESTED_UMB_TOO_BIG 0xb0
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#define XMS_NO_UMBS_AVAILABLE 0xb1
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#define XMS_INVALID_UMB_SEGMENT 0xb2
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/*
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* EMM structure for data exchange with DOS caller, hence the
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* packed format
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*/
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struct EMM {
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u_long nbytes;
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u_short src_handle __attribute__ ((packed));
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u_long src_offset __attribute__ ((packed));
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u_short dst_handle __attribute__ ((packed));
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u_long dst_offset __attribute__ ((packed));
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} ;
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/*
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* XMS info structure, only used to pass information to and from
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* DOS
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*/
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struct XMSinfo {
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u_char handle; /* the handle */
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u_char num_locks __attribute__ ((packed)); /* number of locks */
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u_long size __attribute__ ((packed)); /* size of memory */
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u_long phys_addr __attribute__ ((packed)); /* "physical" address */
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};
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/*
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* Handle management inside the emulator for extendend memory pages,
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* invisible to DOS
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*/
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typedef struct {
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u_long addr; /* address inside emulator, from malloc() */
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u_long size; /* size in bytes */
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u_char num_locks; /* lock count for this handle */
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} XMS_handle;
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/*
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* Managment of UMB memory paragraphs (16 bytes). UMB blocks are
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* directly accessible by VM86 applications and lie between 0xd0000 and
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* 0xefff0 in VM86 memory space.
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*/
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struct _UMB_block {
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u_long addr; /* Start address of block */
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u_long size; /* Size in bytes */
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struct _UMB_block *next;
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};
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typedef struct _UMB_block UMB_block;
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#endif /* XMS_H */
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