/*
 *  Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <signal.h>

#include "cpu.h"

int cpu_tricore_handle_mmu_fault(CPUState *cs, target_ulong address,
                                 int rw, int mmu_idx)
{
    return 0;
}

void tricore_cpu_do_interrupt(CPUState *cs)
{
}

TriCoreCPU *cpu_tricore_init(const char *cpu_model)
{
    return TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, cpu_model));
}

static void tricore_cpu_list_entry(gpointer data, gpointer user_data)
{
    ObjectClass *oc = data;
    CPUListState *s = user_data;
    const char *typename;
    char *name;

    typename = object_class_get_name(oc);
    name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_TRICORE_CPU));
    (*s->cpu_fprintf)(s->file, "  %s\n",
                      name);
    g_free(name);
}

void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf)
{
    CPUListState s = {
        .file = f,
        .cpu_fprintf = cpu_fprintf,
    };
    GSList *list;

    list = object_class_get_list(TYPE_TRICORE_CPU, false);
    (*cpu_fprintf)(f, "Available CPUs:\n");
    g_slist_foreach(list, tricore_cpu_list_entry, &s);
    g_slist_free(list);
}

uint32_t psw_read(CPUTriCoreState *env)
{
    /* clear all USB bits */
    env->PSW &= 0xffffff;
    /* now set them from the cache */
    env->PSW |= ((env->PSW_USB_C != 0) << 31);
    env->PSW |= ((env->PSW_USB_V   & (1 << 31))  >> 1);
    env->PSW |= ((env->PSW_USB_SV  & (1 << 31))  >> 2);
    env->PSW |= ((env->PSW_USB_AV  & (1 << 31))  >> 3);
    env->PSW |= ((env->PSW_USB_SAV & (1 << 31))  >> 4);

    return env->PSW;
}

void psw_write(CPUTriCoreState *env, uint32_t val)
{
    env->PSW_USB_C = (val & MASK_USB_C);
    env->PSW_USB_V = (val & MASK_USB_V << 1);
    env->PSW_USB_SV = (val & MASK_USB_SV << 2);
    env->PSW_USB_AV = ((val & MASK_USB_AV) << 3);
    env->PSW_USB_SAV = ((val & MASK_USB_SAV) << 4);
    env->PSW = val;
}