18 files changed, 901 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/sample/Makefile b/contrib/syslinux-4.02/sample/Makefile
new file mode 100644
index 0000000..9fa21c2
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/Makefile
@@ -0,0 +1,70 @@
+## -----------------------------------------------------------------------
+##
+##   Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
+##
+##   This program is free software; you can redistribute it and/or modify
+##   it under the terms of the GNU General Public License as published by
+##   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+##   Boston MA 02111-1307, USA; either version 2 of the License, or
+##   (at your option) any later version; incorporated herein by reference.
+##
+## -----------------------------------------------------------------------
+
+##
+## samples for syslinux users
+##
+
+topdir = ..
+include $(topdir)/MCONFIG.embedded
+
+INCLUDES   = -I$(com32)/include
+
+PPMTOLSS16 = $(topdir)/utils/ppmtolss16
+LIBGCC    := $(shell $(CC) $(GCCOPT) --print-libgcc)
+LIB	   = liboldcom32.a
+
+LIBOBJS	   = conio.o atou.o skipatou.o printf.o c32exit.o
+
+com32 = $(topdir)/com32
+C_LIBS	   = $(com32)/libutil/libutil_com.a $(com32)/lib/libcom32.a $(LIBGCC)
+LDFLAGS    = -m elf_i386 -T $(com32)/lib/com32.ld
+
+all: syslogo.lss comecho.com hello.c32 hello2.c32 filetest.c32 c32echo.c32 \
+     fd.c32 $(LIB)
+
+.PRECIOUS: %.o
+
+.PRECIOUS: %.elf
+%.elf: c32entry.o %.o $(LIB)
+	$(LD) -Ttext 0x101000 -e _start -o $@ $^
+
+%.c32: %.elf
+	$(OBJCOPY) -O binary $< $@
+
+%.com: %.asm
+	( $(NASM) -M -DDEPEND -o $@ $< ; echo '' ) > .$@.d ; true
+	$(NASM) $(NASMOPT) -f bin -o $@ -l $*.lst $<
+
+$(LIB): $(LIBOBJS)
+	rm -f $@
+	$(AR) cq $@ $^
+	$(RANLIB) $@
+
+%.lss:	%.ppm.gz $(PPMTOLSS16)
+	$(GZIPPROG) -cd $< | \
+		$(PPMTOLSS16) \#000000=0 \#d0d0d0=7 \#f6f6f6=15	\
+		> $@
+
+%.ppm.gz: %.png
+	$(PNGTOPNM) $< | gzip -9 > $@
+
+tidy dist:
+	rm -f *.o *.a *.lst *.elf .*.d
+
+# Don't specify *.com since mdiskchk.com can't be built using Linux tools
+clean: tidy
+	rm -f *.lss *.o *.c32 comecho.com
+
+spotless: clean
+
+-include .*.d
diff --git a/contrib/syslinux-4.02/sample/README b/contrib/syslinux-4.02/sample/README
new file mode 100644
index 0000000..0a053f5
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/README
@@ -0,0 +1,6 @@
+This directory contains files intended to be used as sample code.
+This includes COMBOOT, COM32, and MS-DOS programs as well as LSS
+icons.
+
+For developing COM32 programs, you probably want to use the new com32
+toolkit (libcom32 and libutil), available in the com32 directory.
diff --git a/contrib/syslinux-4.02/sample/atou.c b/contrib/syslinux-4.02/sample/atou.c
new file mode 100644
index 0000000..73b0bb7
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/atou.c
@@ -0,0 +1,12 @@
+static inline int isdigit(int ch)
+{
+    return (ch >= '0') && (ch <= '9');
+}
+
+unsigned int atou(const char *s)
+{
+    unsigned int i = 0;
+    while (isdigit(*s))
+	i = i * 10 + (*s++ - '0');
+    return i;
+}
diff --git a/contrib/syslinux-4.02/sample/c32echo.c b/contrib/syslinux-4.02/sample/c32echo.c
new file mode 100644
index 0000000..cfde885
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/c32echo.c
@@ -0,0 +1,47 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2002-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * c32echo.c
+ *
+ * Simple COM32 program which only prints out its own command line
+ */
+
+#include <com32.h>
+
+#define NULL ((void *)0)
+
+static inline void memset(void *buf, int ch, unsigned int len)
+{
+    asm volatile ("cld; rep; stosb":"+D" (buf), "+c"(len):"a"(ch):"memory");
+}
+
+int __start(void)
+{
+    com32sys_t inreg;
+    const char *p;
+
+    memset(&inreg, 0, sizeof inreg);
+    inreg.eax.b[1] = 0x02;	/* Write Character */
+
+    for (p = __com32.cs_cmdline; *p; p++) {
+	inreg.edx.b[0] = *p;
+	__com32.cs_intcall(0x21, &inreg, NULL);
+    }
+
+    inreg.edx.b[0] = '\r';
+    __com32.cs_intcall(0x21, &inreg, NULL);
+    inreg.edx.b[0] = '\n';
+    __com32.cs_intcall(0x21, &inreg, NULL);
+
+    return 0;
+}
diff --git a/contrib/syslinux-4.02/sample/c32entry.S b/contrib/syslinux-4.02/sample/c32entry.S
new file mode 100644
index 0000000..2e40c58
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/c32entry.S
@@ -0,0 +1,66 @@
+# -----------------------------------------------------------------------
+#
+#   Copyright 2003-2008 H. Peter Anvin - All Rights Reserved
+#
+#   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.
+#
+# -----------------------------------------------------------------------
+
+# COM32 start up code - must be linked first in the binary
+
+
+		.section ".text","ax"
+		.globl _start
+_start:
+		# This first instruction acts as COM32 magic number
+		movl $0x21cd4cff,%eax
+
+		# Upwards string operations
+		cld
+
+		# Zero the .bss segment
+		xorl %eax,%eax
+		movl $__bss_start,%edi		# Symbol provided by linker
+		movl $_end+3,%ecx		# Symbol provided by linker
+		subl %edi,%ecx
+		shrl $2,%ecx
+		rep ; stosl
+
+		# Copy COM32 invocation parameters
+		leal 4(%esp),%esi		# Argument list
+		movl $__com32,%edi
+		movl $6,%ecx
+		movl %esp,-4(%edi)		# Save the initial stack ptr
+		cmpl (%esi),%ecx
+		jbe 1f
+		movl (%esi),%ecx
+1:		rep ; movsl
+
+		# Run program; we call this __start rather than main since we
+		# did not parse the command line or anything like that.
+		jmp __start
+
+		.section ".bss","aw"
+		.globl __entry_esp
+__entry_esp:	.space 4
+		.globl __com32
+__com32:	.space 4*6
diff --git a/contrib/syslinux-4.02/sample/c32exit.S b/contrib/syslinux-4.02/sample/c32exit.S
new file mode 100644
index 0000000..5c5ba03
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/c32exit.S
@@ -0,0 +1,10 @@
+# $Id#
+#
+# Implementation of exit() for com32 based on c32entry.S
+#
+	.text
+	.globl exit
+exit:
+	movl 4(%esp),%eax		# Exit code in %eax = return value
+	movl (__entry_esp),%esp		# Return stack pointer to entry value
+	ret				# Return to termination address
diff --git a/contrib/syslinux-4.02/sample/comecho.asm b/contrib/syslinux-4.02/sample/comecho.asm
new file mode 100644
index 0000000..7125686
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/comecho.asm
@@ -0,0 +1,32 @@
+;
+; Simple COMBOOT program that just prints out its own command line.
+; This also works in DOS.
+;
+
+	org 100h
+
+_start:
+	xor cx,cx
+	mov cl,[80h]			; Command line len
+	mov si,81h			; Command line
+
+	mov dl,"<"
+	mov ah,02h
+	int 21h
+
+.writechar:
+	lodsb
+	mov dl,al
+	mov ah,02h
+	int 21h
+	loop .writechar
+
+	mov dx,end_str
+	mov ah,09h
+	int 21h
+
+	; Exit with near return, INT 20h, or INT 21h AX=4C00h
+	ret
+
+
+end_str	db ">", 0Dh, 0Ah, "$"
diff --git a/contrib/syslinux-4.02/sample/conio.c b/contrib/syslinux-4.02/sample/conio.c
new file mode 100644
index 0000000..e9660b9
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/conio.c
@@ -0,0 +1,59 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * conio.c
+ *
+ * Output to the screen
+ */
+
+#include <com32.h>
+#include <stdarg.h>
+
+#define NULL ((void *)0)
+
+static inline void memset(void *buf, int ch, unsigned int len)
+{
+    asm volatile ("cld; rep; stosb":"+D" (buf), "+c"(len):"a"(ch):"memory");
+}
+
+int putchar(int ch)
+{
+    com32sys_t regs;
+
+    memset(&regs, 0, sizeof regs);
+
+    if (ch == '\n') {
+	/* \n -> \r\n */
+	putchar('\r');
+    }
+
+    regs.eax.b[1] = 0x02;
+    regs.edx.b[0] = ch;
+    __com32.cs_intcall(0x21, &regs, NULL);
+
+    return ch;
+}
+
+/* Note: doesn't put '\n' like the stdc version does */
+int puts(const char *s)
+{
+    int count = 0;
+
+    while (*s) {
+	putchar(*s);
+	count++;
+	s++;
+    }
+
+    return count;
+}
diff --git a/contrib/syslinux-4.02/sample/fd.c b/contrib/syslinux-4.02/sample/fd.c
new file mode 100644
index 0000000..a1b1a51
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/fd.c
@@ -0,0 +1,59 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2003-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * fd.c
+ *
+ * Chainload a floppy disk (currently rather braindead.)
+ */
+
+#include <com32.h>
+#define NULL ((void *)0)
+
+int printf(const char *, ...);
+unsigned int atou(const char *);
+
+int __start(void)
+{
+    int whichfd = atou(__com32.cs_cmdline);
+    static com32sys_t inreg, outreg;	/* In bss, so zeroed automatically */
+    int retry;
+
+    for (retry = 0; retry < 6; retry++) {
+	printf(">");
+	inreg.eax.w[0] = 0x0201;	/* Read one sector */
+	inreg.ecx.w[0] = 0x0001;	/* Cyl 0 sector 1 */
+	inreg.edx.b[1] = 0;	/* Head 0 */
+	inreg.edx.b[0] = whichfd;	/* Drive number */
+	inreg.es = SEG(__com32.cs_bounce);	/* Read into the bounce buffer */
+	inreg.ebx.w[0] = OFFS(__com32.cs_bounce);
+	__com32.cs_intcall(0x13, &inreg, &outreg);
+
+	if ((outreg.eflags.l & 1) == 0)
+	    break;
+    }
+
+    if ((outreg.eflags.l & 1) == 0) {
+	printf("!\n");
+	inreg.eax.w[0] = 0x000d;
+	inreg.edx.w[0] = 0;
+	inreg.edi.l = (uint32_t) __com32.cs_bounce;
+	inreg.ecx.l = 512;
+	inreg.ebx.l = whichfd & 0xff;
+	inreg.esi.l = 0;	/* No partitions */
+	inreg.ds = 0;		/* No partitions */
+	__com32.cs_intcall(0x22, &inreg, NULL);
+    }
+
+    /* If we get here, badness happened */
+    return 255;
+}
diff --git a/contrib/syslinux-4.02/sample/filetest.c b/contrib/syslinux-4.02/sample/filetest.c
new file mode 100644
index 0000000..2ef772a
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/filetest.c
@@ -0,0 +1,97 @@
+#include <com32.h>
+#include <stdarg.h>
+
+#define NULL ((void *)0)
+int printf(const char *, ...);
+int putchar(int);
+
+static inline void memset(void *buf, int ch, unsigned int len)
+{
+    asm volatile ("cld; rep; stosb":"+D" (buf), "+c"(len):"a"(ch):"memory");
+}
+
+static void strcpy(char *dst, const char *src)
+{
+    while (*src)
+	*dst++ = *src++;
+
+    *dst = '\0';
+}
+
+static void printregs(const com32sys_t * r)
+{
+    printf("eflags = %08x  ds = %04x  es = %04x  fs = %04x  gs = %04x\n"
+	   "eax = %08x  ebx = %08x  ecx = %08x  edx = %08x\n"
+	   "ebp = %08x  esi = %08x  edi = %08x  esp = %08x\n",
+	   r->eflags.l, r->ds, r->es, r->fs, r->gs,
+	   r->eax.l, r->ebx.l, r->ecx.l, r->edx.l,
+	   r->ebp.l, r->esi.l, r->edi.l, r->_unused_esp.l);
+}
+
+int __start(void)
+{
+    unsigned int ax, cx, si, t;
+    com32sys_t inreg, outreg;
+    char *p;
+
+    /* Test null system call */
+    inreg.eflags.l = 0xffffffff;
+    inreg.eax.l = 0x11110000;
+    inreg.ecx.l = 0x22222222;
+    inreg.edx.l = 0x33333333;
+    inreg.ebx.l = 0x44444444;
+    inreg.ebp.l = 0x55555555;
+    inreg.esi.l = 0x66666666;
+    inreg.edi.l = 0x77777777;
+    inreg.ds = 0xaaaa;
+    inreg.es = 0xbbbb;
+    inreg.fs = 0xcccc;
+    inreg.gs = 0xdddd;
+    printregs(&inreg);
+    __com32.cs_intcall(0x22, &inreg, &outreg);
+    printregs(&outreg);
+    printf("----\n");
+
+    memset(&inreg, 0, sizeof inreg);
+    memset(&outreg, 0, sizeof outreg);
+    strcpy(__com32.cs_bounce, "test.txt");
+    inreg.eax.w[0] = 0x0006;	// Open file
+    inreg.esi.w[0] = OFFS(__com32.cs_bounce);
+    inreg.es = SEG(__com32.cs_bounce);
+    printregs(&inreg);
+    __com32.cs_intcall(0x22, &inreg, &outreg);
+    printregs(&outreg);
+    printf("----\n");
+
+    si = outreg.esi.w[0];	/* File handle */
+    cx = outreg.ecx.w[0];	/* Block size */
+    ax = outreg.eax.l;		/* File length */
+
+    while (si) {
+	/* We can only read 64K per call */
+	t = (ax > 65536) ? 65536 / cx : (ax + cx - 1) / cx;
+
+	memset(&inreg, 0, sizeof inreg);
+	inreg.esi.w[0] = si;
+	inreg.ecx.w[0] = t;	/* Block count */
+	inreg.eax.w[0] = 0x0007;	// Read file
+	inreg.ebx.w[0] = OFFS(__com32.cs_bounce);
+	inreg.es = SEG(__com32.cs_bounce);
+	printregs(&inreg);
+	__com32.cs_intcall(0x22, &inreg, &outreg);
+	printregs(&outreg);
+	printf("----\n");
+	si = outreg.esi.w[0];
+
+	/* Print the buffer */
+	t = (ax < 65536) ? ax : 65536;
+	p = __com32.cs_bounce;
+	while (t) {
+	    putchar(*p++);
+	    t--;
+	    ax--;
+	}
+    }
+
+    return 0;
+}
diff --git a/contrib/syslinux-4.02/sample/hello.c b/contrib/syslinux-4.02/sample/hello.c
new file mode 100644
index 0000000..25ceb8b
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/hello.c
@@ -0,0 +1,43 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2002-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * hello.c
+ *
+ * Simple COM32 image
+ */
+
+#include <com32.h>
+
+#define NULL ((void *)0)
+
+static inline void memset(void *buf, int ch, unsigned int len)
+{
+    asm volatile ("cld; rep; stosb":"+D" (buf), "+c"(len):"a"(ch):"memory");
+}
+
+int __start(void)
+{
+    const char *msg = "Hello, World!\r\n";
+    com32sys_t inreg;
+    const char *p;
+
+    memset(&inreg, 0, sizeof inreg);
+
+    for (p = msg; *p; p++) {
+	inreg.edx.b[0] = *p;
+	inreg.eax.b[1] = 0x02;	/* Write Character */
+	__com32.cs_intcall(0x21, &inreg, NULL);
+    }
+
+    return 0;
+}
diff --git a/contrib/syslinux-4.02/sample/hello2.c b/contrib/syslinux-4.02/sample/hello2.c
new file mode 100644
index 0000000..e892011
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/hello2.c
@@ -0,0 +1,58 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2002-2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
+ *   Boston MA 02111-1307, USA; either version 2 of the License, or
+ *   (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * hello2.c
+ *
+ * Simple COM32 image
+ *
+ * This version shows how to use the bounce buffer for data transfer
+ * to the BIOS or COMBOOT system calls.
+ */
+
+#include <com32.h>
+
+#define NULL ((void *)0)
+
+static inline void memset(void *buf, int ch, unsigned int len)
+{
+    asm volatile ("cld; rep; stosb":"+D" (buf), "+c"(len):"a"(ch):"memory");
+}
+
+static void strcpy(char *dst, const char *src)
+{
+    while (*src)
+	*dst++ = *src++;
+
+    *dst = '\0';
+}
+
+static void writemsg(const char *msg)
+{
+    com32sys_t inreg;
+
+    memset(&inreg, 0, sizeof inreg);
+
+    strcpy(__com32.cs_bounce, msg);
+    inreg.eax.w[0] = 0x0002;	/* Write string */
+    inreg.ebx.w[0] = OFFS(__com32.cs_bounce);
+    inreg.es = SEG(__com32.cs_bounce);
+    __com32.cs_intcall(0x22, &inreg, NULL);
+};
+
+int __start(void)
+{
+    writemsg("Hello, World!\r\n" "cmdline = ");
+    writemsg(__com32.cs_cmdline);
+    writemsg("\r\n");
+    return 0;
+}
diff --git a/contrib/syslinux-4.02/sample/m16-640x640-syslinux.jpg b/contrib/syslinux-4.02/sample/m16-640x640-syslinux.jpg
new file mode 100644
index 0000000..3516bea
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/m16-640x640-syslinux.jpg
diff --git a/contrib/syslinux-4.02/sample/printf.c b/contrib/syslinux-4.02/sample/printf.c
new file mode 100644
index 0000000..6b7dda2
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/printf.c
@@ -0,0 +1,316 @@
+/*
+ * Oh, it's a waste of space, but oh-so-yummy for debugging.  It's just
+ * initialization code anyway, so it doesn't take up space when we're
+ * actually running.  This version of printf() does not include 64-bit
+ * support.  "Live with it."
+ *
+ * Most of this code was shamelessly snarfed from the Linux kernel, then
+ * modified.
+ *
+ * FIX THIS: Replace printf() implementation with BSD/MIT-licensed one
+ * from klibc
+ */
+
+#include <stdarg.h>
+
+int puts(const char *);
+
+static inline int isdigit(int ch)
+{
+    return (ch >= '0') && (ch <= '9');
+}
+
+unsigned int skip_atou(const char **s);
+unsigned int atou(const char *s);
+
+static int strnlen(const char *s, int maxlen)
+{
+    const char *es = s;
+    while (*es && maxlen) {
+	es++;
+	maxlen--;
+    }
+
+    return (es - s);
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SPECIAL	32		/* 0x */
+#define LARGE	64		/* use 'ABCDEF' instead of 'abcdef' */
+
+#define do_div(n,base) ({ \
+int __res; \
+__res = ((unsigned long) n) % (unsigned) base; \
+n = ((unsigned long) n) / (unsigned) base; \
+__res; })
+
+static char *number(char *str, long num, int base, int size, int precision,
+		    int type)
+{
+    char c, sign, tmp[66];
+    const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz";
+    int i;
+
+    if (type & LARGE)
+	digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+    if (type & LEFT)
+	type &= ~ZEROPAD;
+    if (base < 2 || base > 36)
+	return 0;
+    c = (type & ZEROPAD) ? '0' : ' ';
+    sign = 0;
+    if (type & SIGN) {
+	if (num < 0) {
+	    sign = '-';
+	    num = -num;
+	    size--;
+	} else if (type & PLUS) {
+	    sign = '+';
+	    size--;
+	} else if (type & SPACE) {
+	    sign = ' ';
+	    size--;
+	}
+    }
+    if (type & SPECIAL) {
+	if (base == 16)
+	    size -= 2;
+	else if (base == 8)
+	    size--;
+    }
+    i = 0;
+    if (num == 0)
+	tmp[i++] = '0';
+    else
+	while (num != 0)
+	    tmp[i++] = digits[do_div(num, base)];
+    if (i > precision)
+	precision = i;
+    size -= precision;
+    if (!(type & (ZEROPAD + LEFT)))
+	while (size-- > 0)
+	    *str++ = ' ';
+    if (sign)
+	*str++ = sign;
+    if (type & SPECIAL) {
+	if (base == 8)
+	    *str++ = '0';
+	else if (base == 16) {
+	    *str++ = '0';
+	    *str++ = digits[33];
+	}
+    }
+    if (!(type & LEFT))
+	while (size-- > 0)
+	    *str++ = c;
+    while (i < precision--)
+	*str++ = '0';
+    while (i-- > 0)
+	*str++ = tmp[i];
+    while (size-- > 0)
+	*str++ = ' ';
+    return str;
+}
+
+/* Forward decl. needed for IP address printing stuff... */
+int sprintf(char *buf, const char *fmt, ...);
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+    int len;
+    unsigned long num;
+    int i, base;
+    char *str;
+    const char *s;
+
+    int flags;			/* flags to number() */
+
+    int field_width;		/* width of output field */
+    int precision;		/* min. # of digits for integers; max
+				   number of chars for from string */
+    int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+
+    for (str = buf; *fmt; ++fmt) {
+	if (*fmt != '%') {
+	    *str++ = *fmt;
+	    continue;
+	}
+
+	/* process flags */
+	flags = 0;
+repeat:
+	++fmt;			/* this also skips first '%' */
+	switch (*fmt) {
+	case '-':
+	    flags |= LEFT;
+	    goto repeat;
+	case '+':
+	    flags |= PLUS;
+	    goto repeat;
+	case ' ':
+	    flags |= SPACE;
+	    goto repeat;
+	case '#':
+	    flags |= SPECIAL;
+	    goto repeat;
+	case '0':
+	    flags |= ZEROPAD;
+	    goto repeat;
+	}
+
+	/* get field width */
+	field_width = -1;
+	if (isdigit(*fmt))
+	    field_width = skip_atou(&fmt);
+	else if (*fmt == '*') {
+	    ++fmt;
+	    /* it's the next argument */
+	    field_width = va_arg(args, int);
+	    if (field_width < 0) {
+		field_width = -field_width;
+		flags |= LEFT;
+	    }
+	}
+
+	/* get the precision */
+	precision = -1;
+	if (*fmt == '.') {
+	    ++fmt;
+	    if (isdigit(*fmt))
+		precision = skip_atou(&fmt);
+	    else if (*fmt == '*') {
+		++fmt;
+		/* it's the next argument */
+		precision = va_arg(args, int);
+	    }
+	    if (precision < 0)
+		precision = 0;
+	}
+
+	/* get the conversion qualifier */
+	qualifier = -1;
+	if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+	    qualifier = *fmt;
+	    ++fmt;
+	}
+
+	/* default base */
+	base = 10;
+
+	switch (*fmt) {
+	case 'c':
+	    if (!(flags & LEFT))
+		while (--field_width > 0)
+		    *str++ = ' ';
+	    *str++ = (unsigned char)va_arg(args, int);
+	    while (--field_width > 0)
+		*str++ = ' ';
+	    continue;
+
+	case 's':
+	    s = va_arg(args, char *);
+	    len = strnlen(s, precision);
+
+	    if (!(flags & LEFT))
+		while (len < field_width--)
+		    *str++ = ' ';
+	    for (i = 0; i < len; ++i)
+		*str++ = *s++;
+	    while (len < field_width--)
+		*str++ = ' ';
+	    continue;
+
+	case 'p':
+	    if (field_width == -1) {
+		field_width = 2 * sizeof(void *);
+		flags |= ZEROPAD;
+	    }
+	    str = number(str,
+			 (unsigned long)va_arg(args, void *), 16,
+			 field_width, precision, flags);
+	    continue;
+
+	case 'n':
+	    if (qualifier == 'l') {
+		long *ip = va_arg(args, long *);
+		*ip = (str - buf);
+	    } else {
+		int *ip = va_arg(args, int *);
+		*ip = (str - buf);
+	    }
+	    continue;
+
+	case '%':
+	    *str++ = '%';
+	    continue;
+
+	    /* integer number formats - set up the flags and "break" */
+	case 'o':
+	    base = 8;
+	    break;
+
+	case 'X':
+	    flags |= LARGE;
+	case 'x':
+	    base = 16;
+	    break;
+
+	case 'd':
+	case 'i':
+	    flags |= SIGN;
+	case 'u':
+	    break;
+
+	default:
+	    *str++ = '%';
+	    if (*fmt)
+		*str++ = *fmt;
+	    else
+		--fmt;
+	    continue;
+	}
+	if (qualifier == 'l')
+	    num = va_arg(args, unsigned long);
+	else if (qualifier == 'h') {
+	    num = (unsigned short)va_arg(args, int);
+	    if (flags & SIGN)
+		num = (short)num;
+	} else if (flags & SIGN)
+	    num = va_arg(args, int);
+	else
+	    num = va_arg(args, unsigned int);
+	str = number(str, num, base, field_width, precision, flags);
+    }
+    *str = '\0';
+    return str - buf;
+}
+
+int sprintf(char *buf, const char *fmt, ...)
+{
+    va_list args;
+    int i;
+
+    va_start(args, fmt);
+    i = vsprintf(buf, fmt, args);
+    va_end(args);
+    return i;
+}
+
+int printf(const char *fmt, ...)
+{
+    char printf_buf[1024];
+    va_list args;
+    int printed;
+
+    va_start(args, fmt);
+    printed = vsprintf(printf_buf, fmt, args);
+    va_end(args);
+
+    puts(printf_buf);
+
+    return printed;
+}
diff --git a/contrib/syslinux-4.02/sample/sample.msg b/contrib/syslinux-4.02/sample/sample.msg
new file mode 100644
index 0000000..e93cd62
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/sample.msg
@@ -0,0 +1,13 @@
+sample.msg
+Note that <Ctrl-P>...<Ctrl-W> can be used to delimit something
+that is effectively a comment.
+This message is displayed before the image.
+syslogo.lss
+This message is displayed after the image.
+
+Please note colors do not work quite as expected in graphics mode!
+
+04 RED 07 02 GREEN 07 01 BLUE 07
+47 RED 07 27 GREEN 07 17 BLUE 07
+
+
diff --git a/contrib/syslinux-4.02/sample/skipatou.c b/contrib/syslinux-4.02/sample/skipatou.c
new file mode 100644
index 0000000..ea2dbad
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/skipatou.c
@@ -0,0 +1,13 @@
+static inline int isdigit(int ch)
+{
+    return (ch >= '0') && (ch <= '9');
+}
+
+unsigned int skip_atou(const char **s)
+{
+    int i = 0;
+
+    while (isdigit(**s))
+	i = i * 10 + *((*s)++) - '0';
+    return i;
+}
diff --git a/contrib/syslinux-4.02/sample/syslinux_splash.jpg b/contrib/syslinux-4.02/sample/syslinux_splash.jpg
new file mode 100644
index 0000000..655ddbe
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/syslinux_splash.jpg
diff --git a/contrib/syslinux-4.02/sample/syslogo.ppm.gz b/contrib/syslinux-4.02/sample/syslogo.ppm.gz
new file mode 100644
index 0000000..ee46d9b
--- /dev/null
+++ b/contrib/syslinux-4.02/sample/syslogo.ppm.gz