Rename riscv-dis to spike-dasm

This is a better name, since it looks for the string DASM(xxx), and it
fixes tab completion for the cross compiler.

1 files changed, 45 insertions, 0 deletions

diff --git a/spike_main/spike-dasm.cc b/spike_main/spike-dasm.cc
new file mode 100644
index 0000000..d0af451
--- /dev/null
+++ b/spike_main/spike-dasm.cc
@@ -0,0 +1,45 @@
+// See LICENSE for license details.
+
+// This little program finds occurrences of strings like
+//  DASM(ffabc013)
+// in its input, then replaces them with the disassembly
+// enclosed hexadecimal number, interpreted as a RISC-V
+// instruction.
+
+#include "disasm.h"
+#include "extension.h"
+#include <iostream>
+#include <string>
+#include <cstdint>
+#include <fesvr/option_parser.h>
+using namespace std;
+
+int main(int argc, char** argv)
+{
+  string s;
+  disassembler_t d;
+
+  std::function<extension_t*()> extension;
+  option_parser_t parser;
+  parser.option(0, "extension", 1, [&](const char* s){extension = find_extension(s);});
+
+  while (getline(cin, s))
+  {
+    for (size_t start = 0; (start = s.find("DASM(", start)) != string::npos; )
+    {
+      size_t end = s.find(')', start);
+      if (end == string::npos)
+        break;
+
+      size_t numstart = start + strlen("DASM(");
+      insn_bits_t bits = strtoull(&s[numstart], NULL, 16);
+      string dis = d.disassemble(bits);
+      s = s.substr(0, start) + dis + s.substr(end+1);
+      start += dis.length();
+    }
+
+    cout << s << '\n';
+  }
+
+  return 0;
+}