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Rev 15 Rev 22
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void userspace(void)
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void userspace(void)
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{
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{
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    pri_t pri;
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    pri_t pri;
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    pri = cpu_priority_high();
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    pri = cpu_priority_high();
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    /*
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     * Prepare TSS stack selector and pointers for next syscall.
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     */
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    CPU->arch.tss->esp0 = (__address) &THREAD->kstack[THREAD_STACK_SIZE-8];
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    CPU->arch.tss->ss0 = selector(KDATA_DES);
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    __asm__ volatile (""
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    __asm__ volatile (""
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        "pushl %0\n"
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        "pushl %0\n"
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        "pushl %1\n"
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        "pushl %1\n"
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        "pushl %2\n"
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        "pushl %2\n"
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        "pushl %3\n"
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        "pushl %3\n"