function write in C

[hellohihi]

1. Can someone tell me how to write the following function(in inc_common.cl)

1. DECLSPEC u32 hc_byte_perm_S (const u32 a, const u32 b, const int c)

1. with C language

1. DECLSPEC u32 hc_byte_perm_S (const u32 a, const u32 b, const int c)

1. {

1.     u32 r = 0;

1.     asm volatile ("V_PERM_B32 %0, %1, %2, %3;" : "=v"(r) : "v"(b), "v"(a), "v"(c));

1.     return r;

1. }

1. DECLSPEC u32 hc_byte_perm_S (const u32 a, const u32 b, const int c)

1. {

1.     u32 r = 0;

1.     asm volatile ("prmt.b32 %0, %1, %2, %3;" : "=r"(r) : "r"(a), "r"(b), "r"(c));

1.     return r;

1. }

1. I not familiar with GPU asm