1 files changed, 0 insertions, 155 deletions

diff --git a/uisimulator/sdl/kernel-sdl.c b/uisimulator/sdl/kernel-sdl.c
deleted file mode 100644
index 3288a6f97a..0000000000
--- a/uisimulator/sdl/kernel-sdl.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2002 by Felix Arends
- *
- * 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; either version 2
- * of the License, or (at your option) any later version.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#include <stdlib.h>
-#include <SDL.h>
-#include <SDL_thread.h>
-#include "memory.h"
-#include "system-sdl.h"
-#include "uisdl.h"
-#include "kernel.h"
-#include "thread-sdl.h"
-#include "thread.h"
-#include "debug.h"
-
-static SDL_TimerID tick_timer_id;
-long start_tick;
-
-/* Condition to signal that "interrupts" may proceed */
-static SDL_cond *sim_thread_cond;
-/* Mutex to serialize changing levels and exclude other threads while
- * inside a handler */
-static SDL_mutex *sim_irq_mtx;
-static int interrupt_level = HIGHEST_IRQ_LEVEL;
-static int handlers_pending = 0;
-static int status_reg = 0;
-
-/* Nescessary logic:
- * 1) All threads must pass unblocked
- * 2) Current handler must always pass unblocked
- * 3) Threads must be excluded when irq routine is running
- * 4) No more than one handler routine should execute at a time
- */
-int set_irq_level(int level)
-{
-    SDL_LockMutex(sim_irq_mtx);
-
-    int oldlevel = interrupt_level;
-
-    if (status_reg == 0 && level == 0 && oldlevel != 0)
-    {
-        /* Not in a handler and "interrupts" are being reenabled */
-        if (handlers_pending > 0)
-            SDL_CondSignal(sim_thread_cond);
-    }
-
-    interrupt_level = level; /* save new level */
-
-    SDL_UnlockMutex(sim_irq_mtx);
-    return oldlevel;
-}
-
-void sim_enter_irq_handler(void)
-{
-    SDL_LockMutex(sim_irq_mtx);
-    handlers_pending++;
-
-    if(interrupt_level != 0)
-    {
-        /* "Interrupts" are disabled. Wait for reenable */
-        SDL_CondWait(sim_thread_cond, sim_irq_mtx);
-    }
-
-    status_reg = 1;
-}
-
-void sim_exit_irq_handler(void)
-{
-    if (--handlers_pending > 0)
-        SDL_CondSignal(sim_thread_cond);
-
-    status_reg = 0;
-    SDL_UnlockMutex(sim_irq_mtx);
-}
-
-bool sim_kernel_init(void)
-{
-    sim_irq_mtx = SDL_CreateMutex();
-    if (sim_irq_mtx == NULL)
-    {
-        fprintf(stderr, "Cannot create sim_handler_mtx\n");
-        return false;
-    }
-
-    sim_thread_cond = SDL_CreateCond();
-    if (sim_thread_cond == NULL)
-    {
-        fprintf(stderr, "Cannot create sim_thread_cond\n");
-        return false;
-    }
-
-    return true;
-}
-
-void sim_kernel_shutdown(void)
-{
-    SDL_RemoveTimer(tick_timer_id);
-    SDL_DestroyMutex(sim_irq_mtx);
-    SDL_DestroyCond(sim_thread_cond);
-}
-
-Uint32 tick_timer(Uint32 interval, void *param)
-{
-    long new_tick;
-
-    (void) interval;
-    (void) param;
-    
-    new_tick = (SDL_GetTicks() - start_tick) / (1000/HZ);
-        
-    while(new_tick != current_tick)
-    {
-        sim_enter_irq_handler();
-
-        /* Run through the list of tick tasks - increments tick
-         * on each iteration. */
-        call_tick_tasks();
-
-        sim_exit_irq_handler();
-    }
-    
-    return 1;
-}
-
-void tick_start(unsigned int interval_in_ms)
-{
-    if (tick_timer_id != NULL)
-    {
-        SDL_RemoveTimer(tick_timer_id);
-        tick_timer_id = NULL;
-    }
-    else
-    {
-        start_tick = SDL_GetTicks();
-    }
-
-    tick_timer_id = SDL_AddTimer(interval_in_ms, tick_timer, NULL);
-}