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/*
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/*
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * Copyright (C) 2001-2004 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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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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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - 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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 *   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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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - 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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 *   derived from this software without specific prior written permission.
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 *
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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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * 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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 * (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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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <func.h>
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#include <func.h>
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#include <print.h>
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#include <print.h>
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#include <cpu.h>
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#include <cpu.h>
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#include <arch/asm.h>
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#include <arch/asm.h>
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#include <arch.h>
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#include <arch.h>
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#include <typedefs.h>
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__u32   haltstate = 0; /**< Halt flag */
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__u32   haltstate = 0; /**< Halt flag */
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/** Halt wrapper
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/** Halt wrapper
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 *
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 *
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 * Set halt flag and halt the cpu.
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 * Set halt flag and halt the cpu.
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 *
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 *
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 */
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 */
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void halt(void)
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void halt(void)
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{
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{
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    haltstate = 1;
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    haltstate = 1;
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    interrupts_disable();
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    interrupts_disable();
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    if (CPU)
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    if (CPU)
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        printf("cpu%d: halted\n", CPU->id);
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        printf("cpu%d: halted\n", CPU->id);
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    else
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    else
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        printf("cpu: halted\n");
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        printf("cpu: halted\n");
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    cpu_halt();
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    cpu_halt();
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}
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}
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/** Return number of characters in a string.
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 *
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 * @param str NULL terminated string.
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 *
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 * @return Number of characters in str.
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 */
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size_t strlen(const char *str)
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{
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    int i;
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    for (i = 0; str[i]; i++)
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        ;
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    return i;
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}
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/** Compare two NULL terminated strings
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/** Compare two NULL terminated strings
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 *
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 *
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 * Do a char-by-char comparment of two NULL terminated strings.
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 * Do a char-by-char comparison of two NULL terminated strings.
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 * The strings are considered equal iff they have the same
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 * The strings are considered equal iff they consist of the same
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 * length and consist of the same characters.
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 * characters on the minimum of their lengths and specified maximal
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 * length.
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 *
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 *
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 * @param src First string to compare.
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 * @param src First string to compare.
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 * @param dst Second string to compare.
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 * @param dst Second string to compare.
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 * @param len Maximal length for comparison.
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 *
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 *
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 * @return 0 if the strings are equal, 1 otherwise.
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 * @return 0 if the strings are equal, 1 otherwise.
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 *
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 *
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 */
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 */
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int strcmp(const char *src, const char *dst)
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int strcmp(const char *src, const char *dst, size_t len)
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{
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{
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    int i;
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    int i;
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    i = 0;
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    i = 0;
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    while (src[i] == dst[i]) {
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    while ((i < len) && (src[i] == dst[i])) {
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        if (src[i] == '\0')
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        if ((i == len - 1) || (src[i] == '\0'))
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            return 0;
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            return 0;
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        i++;
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        i++;
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    }
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    }
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    return 1;
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    return 1;
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}
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}
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