#include struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { struct sbiret ret; register unsigned long a0 asm("a0") = arg0; register unsigned long a1 asm("a1") = arg1; register unsigned long a2 asm("a2") = arg2; register unsigned long a3 asm("a3") = arg3; register unsigned long a4 asm("a4") = arg4; register unsigned long a5 asm("a5") = arg5; register unsigned long a6 asm("a6") = fid; register unsigned long a7 asm("a7") = ext; asm volatile ("ecall" : "+r" (a0), "+r" (a1) : "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), "r" (a7) : "memory"); ret.error = a0; ret.value = a1; return ret; }