added driver sim

simX/mem.cpp

@@ -280,6 +280,120 @@ void DiskControllerMemDevice::write(Addr a, Word w) {
   }
 }
 
+static uint32_t hti_old(char c) {
+      if (c >= 'A' && c <= 'F')
+          return c - 'A' + 10;
+      if (c >= 'a' && c <= 'f')
+          return c - 'a' + 10;
+      return c - '0';
+  }
 
+static uint32_t hToI_old(char *c, uint32_t size) {
+    uint32_t value = 0;
+    for (uint32_t i = 0; i < size; i++) {
+        value += hti_old(c[i]) << ((size - i - 1) * 4);
+    }
+    return value;
+}
 
+void RAM::loadHexImpl(std::string path) {
+      this->clear();
+      FILE *fp = fopen(&path[0], "r");
+      if(fp == 0){
+          std::cout << path << " not found" << std::endl;
+      }
 
+      //Preload 0x0 <-> 0x80000000 jumps      
+      ((uint32_t*)this->get(0))[0] = 0xf1401073;
+      ((uint32_t*)this->get(0))[1] = 0xf1401073;      
+      ((uint32_t*)this->get(0))[2] = 0x30101073;
+      ((uint32_t*)this->get(0))[3] = 0x800000b7;
+      ((uint32_t*)this->get(0))[4] = 0x000080e7;
+      
+      ((uint32_t*)this->get(0x80000000))[0] = 0x00000097;
+
+      ((uint32_t*)this->get(0xb0000000))[0] = 0x01C02023;
+      
+      ((uint32_t*)this->get(0xf00fff10))[0] = 0x12345678;
+
+      ((uint32_t*)this->get(0x70000000))[0] = 0x00008067;
+
+      {
+        uint32_t init_addr = 0x70000004;
+        for (int off = 0; off < 1024; off+=4) {
+          uint32_t new_addr = init_addr+off;
+          ((uint32_t*)this->get(new_addr))[0] = 0x00000000;
+        }
+      }
+
+      {
+        uint32_t init_addr = 0x71000000;
+        for (int off = 0; off < 1024; off+=4) {
+          uint32_t new_addr = init_addr+off;
+          ((uint32_t*)this->get(new_addr))[0] = 0x00000000;
+        }
+      }
+
+      {
+        uint32_t init_addr = 0x72000000;
+        for (int off = 0; off < 1024; off+=4) {
+          uint32_t new_addr = init_addr+off;
+          ((uint32_t*)this->get(new_addr))[0] = 0x00000000;
+        }
+      }     
+
+      fseek(fp, 0, SEEK_END);
+      uint32_t size = ftell(fp);
+      fseek(fp, 0, SEEK_SET);
+      char* content = new char[size];
+      int x = fread(content, 1, size, fp);
+
+      if (!x) { 
+        std::cout << "COULD NOT READ FILE\n"; std::abort();
+      }
+
+      int offset = 0;
+      char* line = content;
+      // std::cout << "WHTA\n";
+      while (1) {
+          if (line[0] == ':') {
+              uint32_t byteCount = hToI_old(line + 1, 2);
+              uint32_t nextAddr = hToI_old(line + 3, 4) + offset;
+              uint32_t key = hToI_old(line + 7, 2);
+              switch (key) {
+              case 0:
+                  for (uint32_t i = 0; i < byteCount; i++) {
+                      unsigned add = nextAddr + i;
+                      *(this->get(add)) = hToI_old(line + 9 + i * 2, 2);
+                      // std::cout << "lhi: Address: " << std::hex <<(add) << "\tValue: " << std::hex << hToI_old(line + 9 + i * 2, 2) << std::endl;
+                  }
+                  break;
+              case 2:
+  //              cout << offset << endl;
+                  offset = hToI_old(line + 9, 4) << 4;
+                  break;
+              case 4:
+  //              cout << offset << endl;
+                  offset = hToI_old(line + 9, 4) << 16;
+                  break;
+              default:
+  //              cout << "??? " << key << endl;
+                  break;
+              }
+          }
+
+          while (*line != '\n' && size != 0) {
+              line++;
+              size--;
+          }
+
+          if (size <= 1)
+              break;
+
+          line++;
+          size--;
+      }      
+
+      if (content) 
+        delete[] content;
+  }