a bit of docs

README.md

@@ -26,3 +26,25 @@ CLI tests (also assuming build in `build` and being in repo root):
 ```shell
 PSIL="../build/src/psil" clitests/testall.sh
 ```
+
+# How to use
+
+You can just run the executable and you'll be in REPL mode,
+or specify an input file like `-f <file>`, the effect is the same as if you
+had put it there yourself.
+
+When reading from a file, REPL is still enabled by default and can be disabled with `--repl-`
+
+## Options
+
+You can also change some of the behaviours of the interpreter:
+
+```shell
+--cell_limit:limit (for example --cell_limit:10000) - limit the amount of cells that can be used
+--command_strs[+/-] (for example --command_strs+) - use string representation of commands, useful
+                                                    for debugging the compiler with verbose logging
+--default_log_level:level (for example --default_log_level:3) - change the default logging level
+--repl[+/-] (for example --repl-) - enable/disable repl
+```
+
+

src/vm/src/MemoryContext.cpp

@@ -121,7 +121,7 @@ void MemoryContext::gc_thread_entry() {
             for (const auto &r: _roots) {
                 Logger::log(
                         "MemoryContext", [&](std::ostream &out) { out << "processing r " << r.first << " diff " << r.second; },
-                        Logger::DEBUG);
+                        Logger::TRACE);
                 toVisit.emplace(r.first);
             }
             visitAll();
@@ -166,7 +166,7 @@ void MemoryContext::gc_thread_entry() {
             _cells.remove_if([&](Cell *l) {
                 if (!l->_live) {
                     freed += 1;
-                    Logger::log("MemoryContext", [&](std::ostream &out) { out << "deleting: " << l; }, Logger::DEBUG);
+                    Logger::log("MemoryContext", [&](std::ostream &out) { out << "deleting: " << l; }, Logger::TRACE);
                     delete l;
                     return true;
                 }