-// helpful utility and synch functions
-
-// relies on defining "ncores" before including this file...
+// See LICENSE for license details.
#ifndef __UTIL_H
#define __UTIL_H
-#include <machine/syscall.h>
+extern void setStats(int enable);
+
+#include <stdint.h>
+
+#define static_assert(cond) switch(0) { case 0: case !!(long)(cond): ; }
+
+static int verify(int n, const volatile int* test, const int* verify)
+{
+ int i;
+ // Unrolled for faster verification
+ for (i = 0; i < n/2*2; i+=2)
+ {
+ int t0 = test[i], t1 = test[i+1];
+ int v0 = verify[i], v1 = verify[i+1];
+ if (t0 != v0) return i+1;
+ if (t1 != v1) return i+2;
+ }
+ if (n % 2 != 0 && test[n-1] != verify[n-1])
+ return n;
+ return 0;
+}
-#define rdcycle() ({ unsigned long _c; asm volatile ("rdcycle %0" : "=r"(_c) :: "memory"); _c; })
-#define rdinstret() ({ unsigned long _c; asm volatile ("rdinstret %0" : "=r"(_c) :: "memory"); _c; })
-
-void __attribute__((noinline)) barrier()
+static int verifyDouble(int n, const volatile double* test, const double* verify)
+{
+ int i;
+ // Unrolled for faster verification
+ for (i = 0; i < n/2*2; i+=2)
+ {
+ double t0 = test[i], t1 = test[i+1];
+ double v0 = verify[i], v1 = verify[i+1];
+ int eq1 = t0 == v0, eq2 = t1 == v1;
+ if (!(eq1 & eq2)) return i+1+eq1;
+ }
+ if (n % 2 != 0 && test[n-1] != verify[n-1])
+ return n;
+ return 0;
+}
+
+static void __attribute__((noinline)) barrier(int ncores)
{
static volatile int sense;
static volatile int count;
__sync_synchronize();
}
+static uint64_t lfsr(uint64_t x)
+{
+ uint64_t bit = (x ^ (x >> 1)) & 1;
+ return (x >> 1) | (bit << 62);
+}
-
-
-
-void finishTest(int test_result)
+static uintptr_t insn_len(uintptr_t pc)
{
-#if HOST_DEBUG
- if ( test_result == 1 )
- printf( "*** PASSED ***\n" );
- else
- printf( "*** FAILED *** (tohost = %d)\n", test_result);
- exit(0);
-#else
- {
- // perform exit syscall
- asm volatile(
- "move a0,%0 ;"
- "li a1,0 ;"
- "li a2,0 ;"
- "li a3,0 ;"
- "li v0,%1 ;"
- "syscall" : : "r"(test_result) , "i"(SYS_exit));
- }
-#endif
+ return (*(unsigned short*)pc & 3) ? 4 : 2;
}
-#endif //__UTIL_H
+#ifdef __riscv
+#include "encoding.h"
+#endif
+#define stringify_1(s) #s
+#define stringify(s) stringify_1(s)
+#define stats(code, iter) do { \
+ unsigned long _c = -read_csr(mcycle), _i = -read_csr(minstret); \
+ code; \
+ _c += read_csr(mcycle), _i += read_csr(minstret); \
+ if (cid == 0) \
+ printf("\n%s: %ld cycles, %ld.%ld cycles/iter, %ld.%ld CPI\n", \
+ stringify(code), _c, _c/iter, 10*_c/iter%10, _c/_i, 10*_c/_i%10); \
+ } while(0)
+
+#endif //__UTIL_H