mz700-js/bin/cli-command/mem.js

MZ-700 Full JavaScript Emulator

"use strict";
var CliCommand = require("./command");
var { parseAddress } = require("../../js/lib/parse-addr");
var { HEX } = require("../../js/lib/number-util");
module.exports = new CliCommand("mem", function(mz700, args) {
    var addr = null;
    switch(args[0]) {
        case "set":
            if(args.length < 2) {
                console.log("Error: no address specified");
                return false;
            } else {
                addr = parseAddress(args[1]);
                var data_list = args.slice(2);
                data_list.forEach(function(data, i) {
                    mz700.memory.poke(addr + i, parseAddress(data));
                });
            }
            break;
        case "dump":
            if(args.length < 2) {
                console.log("Error: no address specified");
            } else {
                addr = parseAddress(args[1]);
                var len = 256;
                var cols = 16;
                var hexArr = [];
                var put = function() {
                    var s = hexArr.join("");
                    console.log(s);
                    hexArr = [];
                }
                for(var i = 0; i < len; i++) {
                    var data = mz700.memory.peek(addr + i);
                    if(i % cols == 0) {
                        hexArr.push(HEX(addr+i, 4));
                        hexArr.push(":");
                    }
                    if(i % cols != 0 && i % (cols / 2) == 0) {
                        hexArr.push(" -");
                    }
                    hexArr.push(" ");
                    hexArr.push(HEX(data, 2));
                    if(i % cols == cols - 1) {
                        put();
                    }
                }
                if(hexArr.length > 0) {
                    put();
                }
            }
            break;
        default:
            console.log("Error: Unrecognized command " + args[0]);
            return false;
    }
});