initial commit of dos boot loader.

2 files changed, 232 insertions, 0 deletions

diff --git a/sys/arch/i386/boot.dos/Makefile b/sys/arch/i386/boot.dos/Makefile
new file mode 100644
index 00000000000..b6f2244e38b
--- /dev/null
+++ b/sys/arch/i386/boot.dos/Makefile
@@ -0,0 +1,64 @@
+#     $NetBSD: Makefile,v 1.18 1995/03/23 19:46:45 jtc Exp $
+#
+# Ported to boot 386BSD by Julian Elischer (julian@tfs.com)
+# September 1992
+#
+# 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.
+#
+
+S=    ${.CURDIR}/../../..
+
+machine-links:
+	-rm -f machine && ln -s ${.CURDIR}/../include machine
+	-rm -f ${MACHINE_ARCH} && ln -s ${.CURDIR}/../include ${MACHINE_ARCH}
+
+all: machine-links boot.com
+
+NOPROG=       noprog
+NOMAN=        noman
+
+CFLAGS=	-O6 -DKERNEL -D_KERNEL -DI386_CPU -DI486_CPU -DI586_CPU
+CFLAGS+=-DDO_BAD144 -I. -I${.CURDIR} -I$S -I${.CURDIR}/../.. -I${.CURDIR}/../boot
+
+# Uncomment this to make the boot block talk to a serial port.
+#CPPFLAGS+=-DSERIAL
+# Uncomment this to make boot blocks read DOS files
+CPPFLAGS+= -DDOSREAD -DDEBUG
+
+# start.o should be first
+OBJS= start.o table.o boot.o asm.o bios.o dossys.o io.o disk.o sys.o version.o
+VPATH=        ${.CURDIR}/../boot
+
+boot.com: ${OBJS}
+	${LD} -Bstatic -e start -N -T 0x100 -o dosboot ${OBJS}
+	cp dosboot dosboot.sym
+	@strip dosboot
+	@sh ${.CURDIR}/../boot/rmaouthdr dosboot dosboot.tmp
+	@mv -f dosboot.tmp boot.com
+	@ls -l boot.com
+
+install: boot.com
+	cp boot.com ${DESTDIR}/usr/mdec/boot.com
+
+
+CLEANFILES+=boot.com dosboot dosboot.sym machine ${MACHINE_ARCH}
+
+.include <bsd.prog.mk>
diff --git a/sys/arch/i386/boot.dos/dossys.c b/sys/arch/i386/boot.dos/dossys.c
new file mode 100644
index 00000000000..c32f31af1b0
--- /dev/null
+++ b/sys/arch/i386/boot.dos/dossys.c
@@ -0,0 +1,168 @@
+#ifdef DOSREAD
+
+#include "boot.h"
+short doserrno;
+short doshandle = -1;
+void bcopy(), pcpy();
+
+void _read();
+
+char iobuf[MAXBSIZE];
+
+char *doserrors[] ={
+  /* 00 */ "no error",
+         /* 01 */ "function number invalid",
+         /* 02 */ "file not found",
+         /* 03 */ "path not found",
+         /* 04 */ "too many open files (no handles available)",
+         /* 05 */ "access denied",
+         /* 06 */ "invalid handle",
+         /* 07 */ "memory control block destroyed",
+         /* 08 */ "insufficient memory",
+         /* 09 */ "memory block address invalid",
+         /* 0A */ "environment invalid (usually >32K in length)",
+         /* 0B */ "format invalid",
+         /* 0C */ "access code invalid",
+         /* 0D */ "data invalid",
+         /* 0E */ "reserved",
+         /* 0F */ "invalid drive",
+         /* 10 */ "attempted to remove current directory",
+         /* 11 */ "not same device",
+         /* 12 */ "no more files",
+         /* 13 */ "disk write-protected",
+         /* 14 */ "unknown unit",
+         /* 15 */ "drive not ready",
+         /* 16 */ "unknown command",
+         /* 17 */ "data error (CRC)",
+         /* 18 */ "bad request structure length",
+         /* 19 */ "seek error",
+         /* 1A */ "unknown media type (non-DOS disk)",
+         /* 1B */ "sector not found",
+         /* 1C */ "printer out of paper",
+         /* 1D */ "write fault",
+         /* 1E */ "read fault",
+         /* 1F */ "general failure",
+         /* 20 */ "sharing violation",
+         /* 21 */ "lock violation",
+         /* 22 */ "disk change invalid (ES:DI -> media ID structure)(see #0839)",
+         /* 23 */ "FCB unavailable",
+         /* 24 */ "sharing buffer overflow",
+         /* 25 */ "(DOS 4+) code page mismatch",
+         /* 26 */ "(DOS 4+) cannot complete file operation (out of input)",
+         /* 27 */ "(DOS 4+) insufficient disk space",
+         /* 28 */ "Reserved error (0x28)",
+         /* 29 */ "Reserved error (0x29)",
+         /* 2A */ "Reserved error (0x2A)",
+         /* 2B */ "Reserved error (0x2B)",
+         /* 2C */ "Reserved error (0x2C)",
+         /* 2D */ "Reserved error (0x2D)",
+         /* 2E */ "Reserved error (0x2E)",
+         /* 2F */ "Reserved error (0x2F)",
+         /* 30 */ "Reserved error (0x30)",
+         /* 31 */ "Reserved error (0x31)",
+         /* 32 */ "network request not supported",
+         /* 33 */ "remote computer not listening",
+         /* 34 */ "duplicate name on network",
+         /* 35 */ "network name not found",
+         /* 36 */ "network busy",
+         /* 37 */ "network device no longer exists",
+         /* 38 */ "network BIOS command limit exceeded",
+         /* 39 */ "network adapter hardware error",
+         /* 3A */ "incorrect response from network",
+         /* 3B */ "unexpected network error",
+         /* 3C */ "incompatible remote adapter",
+         /* 3D */ "print queue full",
+         /* 3E */ "queue not full",
+         /* 3F */ "not enough space to print file",
+         /* 40 */ "network name was deleted",
+         /* 41 */ "network: Access denied",
+         /* 42 */ "network device type incorrect",
+         /* 43 */ "network name not found",
+         /* 44 */ "network name limit exceeded",
+         /* 45 */ "network BIOS session limit exceeded",
+         /* 46 */ "temporarily paused",
+         /* 47 */ "network request not accepted",
+         /* 48 */ "network print/disk redirection paused",
+         /* 49 */ "network software not installed",
+         /* 4A */ "unexpected adapter close",
+         /* 4B */ "(LANtastic) password expired",
+         /* 4C */ "(LANtastic) login attempt invalid at this time",
+         /* 4D */ "(LANtastic v3+) disk limit exceeded on network node",
+         /* 4E */ "(LANtastic v3+) not logged in to network node",
+         /* 4F */ "reserved",
+         /* 50 */ "file exists",
+         /* 51 */ "reserved",
+         /* 52 */ "cannot make directory",
+         /* 53 */ "fail on INT 24h",
+         /* 54 */ "(DOS 3.3+) too many redirections",
+         /* 55 */ "(DOS 3.3+) duplicate redirection",
+         /* 56 */ "(DOS 3.3+) invalid password",
+         /* 57 */ "(DOS 3.3+) invalid parameter",
+         /* 58 */ "(DOS 3.3+) network write fault",
+         /* 59 */ "(DOS 4+) function not supported on network",
+         /* 5A */ "(DOS 4+) required system component not installed",
+         /* 64 */ "(MSCDEX) unknown error",
+         /* 65 */ "(MSCDEX) not ready",
+         /* 66 */ "(MSCDEX) EMS memory no longer valid",
+         /* 67 */ "(MSCDEX) not High Sierra or ISO-9660 format",
+         /* 68 */ "(MSCDEX) door open",
+       };
+
+
+void __dosread(buffer, count, copy)
+      char *buffer;
+      int count;
+      void (*copy)();
+{
+  int size;
+  int cnt2;
+
+  while (count) {
+    size=count;
+
+    if (size>MAXBSIZE)
+      size=MAXBSIZE;
+
+    size=dosread(doshandle,iobuf,size);
+    twiddle();
+    copy(iobuf , buffer, size);
+    buffer += size;
+    count -= size;
+  }
+}
+
+char *printdoserror(char *header)
+{
+  static char buf[32];
+  int max=sizeof(doserrors)/sizeof(doserrors[0]);
+  if (doserrno<max && doserrno>=0)
+    printf("%s: %s\n",header,doserrors[doserrno]);
+  else
+    printf("%s: Unknown error %d\n",header,doserrno);
+}
+
+doclose()
+{
+  if (doshandle>=0) {
+    if (dosclose(doshandle)<0) {
+      printdoserror("Dosclose");
+      doshandle = -1;
+      return -1;
+    }
+  }
+  return 0;
+}
+
+dosopenrd(char *cp)
+{
+  if (doshandle<0) {
+    doshandle=dosopen(cp);
+    if (doshandle<0) {
+      printdoserror("dosopen");
+      return -1;
+    }
+  }
+  return 0;
+}
+
+#endif