create snp result checker to enable parallel spn calculation and result comparison

raven_spn/src/raven_spn.cpp

@@ -1,19 +1,15 @@
 #include "raven_spn.h"
 #include "spn_regs.h"
 #include "init.h"
-#include <math.h>
+#include "spn_checker_regs.h"
 
 using spn = spn_regs<0x90000000>;
+using spn_checker = spn_checker_regs<0x10040000>;
 
 // huge arrays of XSPN input and referance data
 extern std::array<uint8_t, 50000> input_data;
 extern std::array<double, 10000> ref_data;
 
-bool double_equals(double a, double b, double epsilon = 0.001)
-{
-    return std::abs(a - b) < epsilon;
-}
-
 void run_xspn(int in_addr, int out_addr, int num_samples, int in_beats, int out_beats) {
     spn::mode_reg() = 0;
     spn::input_length_reg() = num_samples;      // each sample consists of 5 uint8 values
@@ -25,22 +21,6 @@ void run_xspn(int in_addr, int out_addr, int num_samples, int in_beats, int out_
     spn::start_reg() = 1;
 }
 
-void check_results(int addr, int k, int step) {
-    int k0 = 0;
-    bool result = 0;
-    double *res_base = (double*) (addr);
-    int * error_exit = (int *)0xF0000000;
-
-    for (int i = 0; i < step; i++) {
-
-        if (!double_equals(res_base[i], ref_data.at(k0 + i))) {
-            printf("XSPN ref %d comparison FAILED\n", k0 + i);
-            result = 1;
-        }
-    }
-    if (result == 1) *error_exit = 0x1;
-    printf("Compared samples %d - %d with the reference\n", k, k+step);
-}
 
 /*! \brief main function
  *
@@ -73,12 +53,8 @@ int main() {
 
     printf("Result Bytes: %d\n", result_bytes);
 
-    uint32_t step = 500;
-<<<<<<< Updated upstream
-    uint32_t iterations = 20;
-=======
+    uint32_t step = 2000;
     uint32_t iterations = 5;
->>>>>>> Stashed changes
     
     uint32_t in_beats = (step * sample_bytes) / axi_bytes;
     if (in_beats * axi_bytes < step * sample_bytes) in_beats++;
@@ -88,13 +64,17 @@ int main() {
     int in_addr  = (int)input_data.data();
     int out_addr = 0x800B0000;
 
+    spn_checker::ref_addr_reg() = (int)ref_data.data();
+    spn_checker::addr_reg() = out_addr;
+
     for (int k = 0; k < iterations*step; k+=step) {
-        printf("XSPN processes samples %d - %d\n", k, k+step);
         run_xspn(in_addr, out_addr, step, in_beats, out_beats);
         wait_for_interrupt();
         printf("XSPN finished\n");
+        spn_checker::offset_reg() = k;
+        spn_checker::length_reg() = step;
+        spn_checker::start_reg() = 1;
         spn::interrupt_reg() = 1;
-        check_results(out_addr, k, step);
 
         in_addr += step * sample_bytes; // 5 bytes in each sample
     }

raven_spn/src/spn_checker_regs.h

@@ -0,0 +1,88 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2017, MINRES Technologies GmbH
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors
+//    may be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Created on: Thu Oct 01 15:45:55 CEST 2020
+//             *      spn_regs.h Author: <RDL Generator>
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef _SPN_CNTL_REGS_H_
+#define _SPN_CNTL_REGS_H_
+
+#include <util/bit_field.h>
+#include <cstdint>
+
+#define SPN_CNTL_REG_START              0x00
+#define SPN_CNTL_REG_OFFSET             0x10
+#define SPN_CNTL_REG_LENGTH             0x20
+#define SPN_CNTL_REG_ADDR               0x30
+#define SPN_CNTL_REG_REF_ADDR           0x40
+
+template<uint32_t BASE_ADDR>
+class spn_checker_regs {
+public:
+    // storage declarations
+//    BEGIN_BF_DECL(start_t, uint32_t);
+//        BF_FIELD(start, 0, 1);
+//    END_BF_DECL() r_start;
+    uint32_t r_start;
+
+    uint32_t r_offset;
+
+    uint32_t r_length;
+
+    uint32_t r_addr;
+
+    uint32_t r_ref_addr;
+
+
+    static inline uint32_t& start_reg(){
+        return *reinterpret_cast<uint32_t*>(BASE_ADDR+SPN_CNTL_REG_START);
+    }
+
+    static inline uint32_t & offset_reg(){
+        return *reinterpret_cast<uint32_t*>(BASE_ADDR+SPN_CNTL_REG_OFFSET);
+    }
+
+    static inline uint32_t & length_reg(){
+        return *reinterpret_cast<uint32_t*>(BASE_ADDR+SPN_CNTL_REG_LENGTH);
+    }
+
+    static inline uint32_t & addr_reg(){
+        return *reinterpret_cast<uint32_t*>(BASE_ADDR+SPN_CNTL_REG_ADDR);
+    }
+
+    static inline uint32_t & ref_addr_reg(){
+        return *reinterpret_cast<uint32_t*>(BASE_ADDR+SPN_CNTL_REG_REF_ADDR);
+    }
+
+};
+
+#endif // _SPN_CNTL_REGS_H_