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#include <debug.h>
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#include <debug.h>
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/** Handle syscall userspace call */
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/** Handle syscall userspace call */
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static void syscall_exception(int n, struct exception_regdump *pstate)
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static void syscall_exception(int n, struct exception_regdump *pstate)
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{
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{
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    interrupts_enable();
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    if (pstate->a3 < SYSCALL_END)
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    if (pstate->a3 < SYSCALL_END)
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        pstate->v0 = syscall_table[pstate->a3](pstate->a0,
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        pstate->v0 = syscall_table[pstate->a3](pstate->a0,
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                               pstate->a1,
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                               pstate->a1,
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                               pstate->a2);
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                               pstate->a2);
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    else
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    else
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        panic("Undefined syscall %d", pstate->a3);
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        panic("Undefined syscall %d", pstate->a3);
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    interrupts_disable();
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    pstate->epc += 4;
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    pstate->epc += 4;
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}
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}
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void exception(struct exception_regdump *pstate)
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void exception(struct exception_regdump *pstate)