execute_loop changes.js

function execute_loop() {
    var vmfunc, pathtab, path;
    var pathstart, pathend;

    if (resumefuncop) {
        //qlog("### at resume time, storing value " + resumevalue + " at funcop " + resumefuncop.key);
        store_operand_by_funcop(resumefuncop, resumevalue);
        resumefuncop = null;
        resumevalue = 0;
    }

    pathstart = new Date().getTime(); //###stats
    
    pathcalls = 0;

    while (!done_executing) {
        pathcalls++;
        if (pathcalls % 100 == 0) {
            qlog("### pc now " + pc.toString(16) + "; path calls = " + pathcalls);
        }
        vmfunc = frame.vmfunc;
        pathtab = vmfunc[iosysmode];
        path = pathtab[pc];
        if (path === undefined) {
            vmfunc.pathaddrs[pc] = true;
            path = compile_path(vmfunc, pc, iosysmode);
            paths_compiled++; //###stats
            if (pc < ramstart) {
                pathtab[pc] = path;
                paths_cached++; //###stats
            }
        }
        pathcalls++;
        total_path_calls++; //###stats
        try {
            path();
        }
        catch (ex) {
            if (ex === ReturnedFromMain) {
                done_executing = true;
                vm_stopped = true;
            }
            else {
                /* Some other exception. */
                throw ex;
            }
        }
    }

    pathend = new Date().getTime(); //###stats
    total_execution_time += (pathend-pathstart) / 1000.0; //###stats

    if (vm_stopped) {
        /* If the library resumes us after exiting, we'll call glk_exit()
           again. That's the library's problem. */
        Glk.glk_exit();
    }

    Glk.update();

    qlog("### done executing; path time = " + (pathend-pathstart) + " ms; path calls = " + pathcalls);
}