source: bootcd/isolinux/syslinux-6.03/core/hello.c

#include <stddef.h>
#include <com32.h>
#include <stdio.h>
#include <string.h>

#include "core.h"

#include <console.h>

void myputchar(int c)
{
    if (c == '\n')
        myputchar('\r');

    writechr(c);
}

void myputs(const char *str)
{
    while (*str)
        myputchar(*str++);
}

void hello(void)
{
    static char hello_str[] = "Hello, World!";

    printf("%s from (%s)\n", hello_str, __FILE__);  /* testing */
}

void hexdump(void *buf, int bytelen, const char *str)
{
        unsigned int *p32, i;
        
        if (str)
                printf("Dump %s:\n", str);
                
        p32 = (unsigned int *)buf;
        for (i = 0; i < (bytelen / 4); i++){
                printf(" 0x%08x ", p32[i]);
        }
        printf("\n\n");         
}

static inline void myprint(int num)
{
        uint32_t i;

        for (i = 0; i < 5; i ++)
                printf("%d", num);
        printf("\n");
}

void mp1(void)
{
        myprint(1);
}

void mp2(void)
{
        myprint(2);
}

void mp3(void)
{
        myprint(3);
}

void mp4(void)
{
        myprint(4);
}

void mp5(void)
{
        myprint(5);
}