From 70d7449f3063eb27660c3b138365d8643f7352d5 Mon Sep 17 00:00:00 2001
From: Makise Kurisu <kurisu@shimatta.de>
Date: Mon, 19 Jan 2015 17:58:38 +0100
Subject: [PATCH] Started vsim wrapper

---
 vsim/main.cpp | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++
 vsim/vsim.pro |   7 +++
 2 files changed, 122 insertions(+)
 create mode 100644 vsim/main.cpp
 create mode 100644 vsim/vsim.pro

diff --git a/vsim/main.cpp b/vsim/main.cpp
new file mode 100644
index 0000000..92cb39c
--- /dev/null
+++ b/vsim/main.cpp
@@ -0,0 +1,115 @@
+#include <iostream>
+#include <string>
+#include <unistd.h>
+#include <stdio.h>
+#include <vector>
+
+#define DEBUG_EN DEBUG_EN
+
+using namespace std;
+
+// Source: vsim -gui design.top(RTL)
+// Target: ghdl -m --ieee=synopsys --warn-no-vital-generic --workdir=simu --work=work testb_file
+//         ./testb_file --stop-time=500ns --vcdgz=testb_file.vcdgz
+//         gunzip --stdout testb_file.vcdgz | gtkwave --vcd
+
+int run(string args);
+
+int run(string args) {
+    FILE *proc;
+    char buf[512];
+    vector < string > result;
+
+    proc = popen(args.c_str(), "r");
+
+    if (proc == NULL) {
+        cerr << "Error: Could not invoke GHDL/GtkWave." << endl;
+        return 1;
+    }
+
+    while(fgets(buf, sizeof(buf), proc)!=NULL){
+        cout << buf;
+    }
+    pclose(proc);
+    return 0;
+}
+
+#define ISOPT(cmd) (string(argv[i]) == cmd)
+#define GETOPT(cmd) (string(argv[i]) == cmd) && (++i < argc)
+
+int main(int argc, char **argv) {
+    string top = "";
+    string work = "";
+    int i;
+    char tempdir[256] = ""; // Compile dir
+
+    if (!getcwd(tempdir, sizeof(tempdir))) {
+        cerr << "Error getting current working dir!" << endl;
+        return 1;
+    }
+
+    for (i=1; i < argc; ++i) {
+        if (ISOPT("-gui")) {
+
+        }
+        else {
+            if (argv[i][0] == '-') {
+                cerr << "INFO: Unknown command line opt: " << argv[i] << endl;
+            }
+            else {
+                break;
+            }
+        }
+    }
+
+    for (; i < argc; ++i) {
+        top.append(argv[i]);
+        top.append(" ");
+    }
+
+
+    // -gui work.toplevel(RTL)
+    string temp = "";
+    for (unsigned int i=0; i < top.length(); ++i) {
+        if (top.at(i) == '.') {
+            work = temp;
+            temp = "";
+        }
+        else if (top.at(i) == '(') {
+            top = temp;
+            temp = "";
+            break;
+        }
+        else {
+            temp.append(" ");
+            temp[temp.length()-1] = top.at(i);
+        }
+    }
+
+#ifdef DEBUG_EN
+    cout << "\n\nVSIM CALL PARSED:" << endl;
+    cout << "\twork=" << work << endl;
+    cout << "\ttop=" << top<< endl;
+    cout << "\ttempdir=" << tempdir << endl;
+#endif
+
+    if (work == "" || top == "" || string(tempdir) == "") {
+        cerr << "Error: Incomplete/Unsupported vsim call." << endl;
+        return 2;
+    }
+
+    string cargs = "ghdl -m --ieee=synopsys --warn-no-vital-generic --workdir=" + string(tempdir) + " --work=" + work + " " + top;
+    if (!run(cargs)) {
+        cerr << "Error: Compilation failed." << endl;
+    }
+    else {
+        cargs = "";
+        // ./testb_file --stop-time=500ns --vcdgz=testb_file.vcdgz
+        if (run("./" + top + " --stop-time=500ns --vcdgz=" + top + ".vcdgz")) {
+            cerr << "Error: Simulation failed." << endl;
+        }
+    }
+
+    return 0;
+}
+
diff --git a/vsim/vsim.pro b/vsim/vsim.pro
new file mode 100644
index 0000000..c3348d2
--- /dev/null
+++ b/vsim/vsim.pro
@@ -0,0 +1,7 @@
+TEMPLATE = app
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG -= qt
+
+SOURCES += main.cpp
+