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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [iq2000/] [trap.c] - Blame information for rev 179

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Line No. Rev Author Line
1 148 jeremybenn
// Perform a system call.
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// Unused parameters should be set to 0.
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int __trap0(unsigned long func, unsigned long p1, unsigned long p2, unsigned long p3)
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{
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  int ret = 0;
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  asm volatile ("nop\n\tor %%4,%%0,%0" : : "r"(func));
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  asm volatile ("nop\n\tor %%5,%%0,%0" : : "r"(p1));
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  asm volatile ("nop\n\tor %%6,%%0,%0" : : "r"(p2));
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  asm volatile ("nop\n\tor %%7,%%0,%0" : : "r"(p3));
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  asm volatile ("nop\n\tor %%11,%%0,%0" : : "r"(func));
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  asm volatile ("syscall\n\tnop\n\tor %0,%%0,%%2" : "=r"(ret));
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  return ret;
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}

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