assembler/debugger.htm at master · n1LS/assembler · GitHub

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<html>

<head>
    <link href='https://schickt.de/font/px8x8.css' rel='stylesheet'>
    <link rel="stylesheet" type="text/css" href="style/style.css" media="screen" />

    <meta charset='utf-8' />
    <style>

        #display {
            width: 100%;
            height: 100%;
        }

        #rdb {
            width: 50%;
            height: 100%;
            left: 100%;
            top: 0;
            position: absolute;
            background-color: black;
            transition: left 0.5s ease;
        }

        .command {
            color: #b0b0b0;
        }

        #debugger-switch {
            position: absolute;
            margin-left: -24px;
            width: 24px;
            background-color: white;
            border-top-left-radius: 8px;
            border-bottom-left-radius: 8px;
        }

        #debugger-output {
            height: calc(100% - 32px);
            width: calc(100% - 8px);
            color: white;
            overflow: scroll;
            padding-left: 8px;
        }

        #debugger-input {
            width: 100%;
        }

        body {
            overflow: hidden;
        }

    </style>

    <script src='rc-core.js'></script>
    <script src='rc-rdb.js'></script>
    <script src='rc-math.js'></script>
    <script src='rc-address-modes.js'></script>
    <script src='rc-preprocessor.js'></script>
    <script src='rc-assembler.js'></script>
    <script src='rc-classes.js'></script>
    <script src='rc-instruction.js'></script>
    <script src='rc-instruction-set.js'></script>

    <script src='canvas-draw.js'></script>
    <script src='canvas-font.js'></script>

    <script>
        var rdb
        var environment
        var memory

        var core
        var timer
        var buttons
        var scale = 1
        var cycles = 1

        function run() {
            stop()
            timer = setInterval(run_cycle, 20)
        }

        function stop() {
            clearInterval(timer)
        }

        function run_cycle() {
            for (var c = 0; c < cycles; c++) {
                if (!core.step()) {
                    stop();
                    break;
                }
            }

            draw()
        }

        function toggle_boost() {
            cycles = cycles == 1 ? 1000 : 1
        }

        function draw_memory_1x1(w, h) {
            for (var i = 0; i < w * h; i++) {
                const idx = i % core.environment.core_size
                const instruction = core.ram.memory[idx]
                var color = kDarkGrey

                if (instruction.execution_flag != -1) {
                    color = process_colors[0][instruction.execution_flag + 1]
                } else if (instruction.write_flag != -1) {
                    color = process_colors[0][instruction.execution_flag + 1]
                }

                if (i >= core.environment.core_size) {
                    color = draw_darken(color)
                }

                x = i % w
                y = ~~(i / w)

                draw_pixel(x, y, color)
            }
        }

        function draw_memory_medium(w, h, size) {
            const cols = ~~(w / size)
            const rows = ~~(h / size)

            function location(index) {
                return {
                    x: index % cols,
                    y: ~~(index / cols)
                }
            }

            for (var i = 0; i < cols * rows; i++) {
                const idx = i % core.environment.core_size
                const instruction = core.ram.memory[idx]
                var c1 = process_colors[1][instruction.write_flag + 1]
                var c2 = process_colors[1][instruction.read_flag + 1]
                var c3 = process_colors[1][instruction.execution_flag + 1]
                const l = location(i)

                const x = l.x * size
                const y = l.y * size

                if (i != idx) {
                    c1 = draw_darken(c1)
                    c2 = draw_darken(c2)
                    c3 = draw_darken(c3)
                }

                draw_triangles(x, y, size, size, c2, c1)
                draw_rect(x + 1, y + 1, size - 2, size - 2, c3)
            }
        }


        function draw_memory_big(w, h, num_visible) {
            const size = row_height
            const cols = ~~(w / size)

            function location(index) {
                return {
                    x: index % cols,
                    y: ~~(index / cols)
                }
            }

            for (var i = 0; i < num_visible; i++) {
                const dark = i >= core.environment.core_size

                const idx = i % core.environment.core_size
                const instruction = core.ram.memory[idx]
                const i_hash = instruction.hash()

                if (i_hash == memory[i]) {
                    continue
                }

                memory[i] = i_hash

                var color = process_colors[0][instruction.execution_flag + 1]
                var color1 = process_colors[2][instruction.read_flag + 1]
                var color2 = process_colors[2][instruction.write_flag + 1]

                if (dark) {
                    color = draw_darken(color)
                    color1 = draw_darken(color1)
                    color2 = draw_darken(color2)
                }

                var l = location(i)
                const x = l.x * size
                const y = l.y * size

                draw_triangles(x, y, size, size, color1, color2)
                draw_symbol(x, y, instruction.op.opcode, color)
            }
        }

        function draw_memory(dx, dy, w, h) {
            const size = row_height
            const cols = ~~(w / size)
            const rows = ~~(h / size)

            draw_translate_to(dx, dy)

            const num_visible = cols * rows

            if (num_visible < core.environment.core_size) {
                const sizes = [7, 6, 5, 4, 3, 1]

                for (var s = 0; s < sizes.length; s++) {
                    const sz = sizes[s]

                    if ((~~(w/sz) * ~~(h/sz)) >= core.environment.core_size) {
                        if (sz == 1) {
                            draw_memory_1x1(w, h)
                        } else {
                            draw_memory_medium(w, h, sz)
                        }

                        break;
                    }
                }
            } else {
                draw_memory_big(w, h, num_visible)
            }

            draw_translate_to(0, 0)
        }

        function draw_memory_dump(x, y, w, data, highlight) {
            draw_rect(x, y, w, row_height * data.length, kBlack)
            draw_rect(x, y + highlight * row_height, w, row_height, kDarkGrey)

            for (var i = 0; i < data.length; i++) {
                draw_text(x, y + i * row_height, data[i], (i == highlight) ? kWhite : kSilver)
            }

            return row_height * data.length
        }

        function draw(redraw) {
            const start = performance.now()

            if (redraw === undefined) {
                redraw = false
            }

            const canvas = document.getElementById('display')

            if (canvas.width != canvas.clientWidth || canvas.height != canvas.clientHeight || redraw) {
                canvas.width = canvas.clientWidth
                canvas.height = canvas.clientHeight
                memory = []

                draw_set_context(canvas, scale)
            }

            var width = ~~(canvas.width / scale / row_height) * row_height
            var height = ~~(canvas.height / scale / row_height) * row_height

            const max_width = 2 + ('' + (core.environment.core_size - 1)).length
            var dump_width = 4 + 3 * max_width

            var dx = row_height * dump_width
            var dy = 0

            draw_rect(0, 0, dx, height - 3 * row_height, kBlack);

            const total_rows = ~~(canvas.height / scale / row_height)
            const usable_rows = total_rows - 8 // \n, next, cycle, \n, toolbar
            const rows_per_process = ~~(usable_rows / core.processes.length)
            const memory_rows = rows_per_process - 2 /* title, spaver */
            const look_behind = ~~(memory_rows / 4)
            const look_ahead = memory_rows - 1 - look_behind

            for (var pid = 0; pid < core.processes.length; pid++) {
                const next = core.processes[pid].next()
                var name = core.processes[pid].program.metadata.get('NAME')

                const max_len = dump_width - 2 - (pid + '').length
                if (name.length > max_len) {
                    name = name.substr(0, max_len - 1) + char_ellipsis
                }

                draw_text(0, dy, `#${pid} ${name}`, process_colors[1][pid + 1])

                dy += row_height
                dy += row_height + draw_memory_dump(0, dy, dx, core.memory_dump(next - look_behind, next + look_ahead), look_behind)

                const n = core.processes[pid].instruction_pointers.length
                title = `${n} THREAD${n == 1 ? '' : 'S'}: `
                draw_text(0, dy, title, kWhite)

                var tids = core.processes[pid].instruction_pointers.slice(0)
                var s = tids.join(' ')

                const available = 22 - title.length

                if (s.length > available) {
                    s = s.substr(0, available - 1) + char_ellipsis
                } else {
                    s = s.substr(0, available)
                }

                draw_text(title.length * row_height, dy, s, kWhite)

                dy += row_height * 2
            }

            var c = process_colors[1][core.current_process_index + 1]
            const ni = core.next_instruction();

            if (ni !== null) {
                var index = core.current_process().next() + ''
                const l = (core.environment.core_size - 1 + '').length
                index = index.padStart(l, '0')

                draw_text(0, dy, `${index} ${ni.to_string(max_width - 1)}`, c)
            }

            dy += row_height
            draw_text(0, dy, `CYCLE ${core.cycle}`, kWhite)

            // graphical representation of the memory
            draw_memory(dx, 0, width - dx, height - 3 * row_height)

            // ui buttons
            var by = height - 3 * row_height

            draw_rect(0, by, width, 3 * row_height, kDarkestGrey)

            buttons = []
            var b
            var bx = 0

            b = draw_button(bx, by, String.fromCharCode(28))
            bx += b.width + row_height
            b.doit = run_cycle
            buttons.push(b)

            b = draw_button(bx, by, String.fromCharCode(30))
            bx += b.width + row_height
            b.doit = run
            buttons.push(b)

            b = draw_button(bx, by, String.fromCharCode(15))
            bx += b.width + row_height
            b.doit = stop
            buttons.push(b)

            b = draw_button(bx, by, '-')
            bx += b.width
            b.doit = function () {
                set_size(-1)
            }
            buttons.push(b)

            b = draw_button(bx, by, '+')
            bx += b.width + row_height
            b.doit = function () {
                set_size(+1)
            }
            buttons.push(b)

            b = draw_checkbox(bx, by, 'BOOST', (cycles > 1))
            bx += b.width + row_height
            b.doit = function () {
                toggle_boost();
                draw()
            }
            buttons.push(b)

            // UI handler

            canvas.onclick = function (e) {
                var x = e.clientX / scale
                var y = e.clientY / scale

                for (var b = 0; b < buttons.length; b++) {
                    const btn = buttons[b]

                    if ((x >= btn.x1) && (y >= btn.y1) && (btn.x2 >= x) && (btn.y2 >= y)) {
                        btn.doit();
                        return;
                    }
                }
            }

            draw_flip()

            const elapsed = ~~(100 * (performance.now() - start)) / 100
            document.title = elapsed + 'ms ' + (redraw ? 'full' : 'part')
        }

        function init_everything() {
            environment = new Environment()
            memory = new Array(environment.core_size)
            core = new Core(environment)

            rdb = new Debugger()
            rdb.attach_to(core)
            rdb.output_handler = function(text) {
                const div = document.getElementById('debugger-output')
                div.innerHTML += text + '\n'
                div.scrollTop = div.scrollHeight
            }

            var code0 =
`
;name idle
idle jmp 0
`

            var code_imp =
`
;name imp
imp mov 0 next
next dat 0 0
`

            var code_dwarf =
`
;name dwarf
    org     jump
    add     #4, 3
    mov     2,  @2
JUMP jmp    -2
dummy dat   #42 #0
`

            var code_stone =
`
;name stone
    mov     <2, 3
    add     3,  -1
    jmp     -2
    dat     #0  #0
    dat     #-5084, #5084
    DAT     0   0
    MOV     0   0
    ADD     0   0
    NOP     0   0
    JMP     0   0
    SPL     0   0
    SUB     0   0
    JMZ     0   0
    JMN     0   0
    CMP     0   0
    SLT     0   0
    DJN     0   0
    NOP     0   0
`
            var code_mice =
`
;name mice
        org start
ptr     dat     #0     ,  #0
start   mov     #12    ,  ptr
loop    mov     @ptr   ,  <copy
        djn     loop   ,  ptr
        spl     @copy  ,  0
        add     #653   ,  copy
        jmz     start  ,  ptr
copy    dat     #0     ,  #833
`

            var test_code =
`
start   CMP #0, 1
        DAT #1, #0
        CMP 4, 5
        CMP 4, 5
        DAT #1, #1
        JMP start
        DAT #0, #2
        DAT #2, #2
        DAT #2, #2
`
            // init both prpgrams
            core.load_program(new Program(code_imp, core.environment))
            core.load_program(new Program(code_imp, core.environment))

            draw(true)

            // listen to messages from parent window
            window.addEventListener('message', message_handler, false)
        }

        function set_size(diff) {
            scale = Math.max(1.0, scale + diff / 2)
            draw(true)
        }

        function message_handler(event) {
            items = event.data.split('::')
            action = items.shift(0)

            switch (action) {
                case 'launch':
                    load(items)
                    break

                case 'environment':
                    core = new Core(JSON.parse(atob(items[0])))
                    draw(true)
                    break
            }
        }

        function load(warriors) {
            core.reset()

            warriors.forEach(base64 => {
                code = atob(base64)
                core.load_program(new Program(code, core.environment))
            })

            draw(1)
        }

        function focus_dbg_input() {
            const input = document.getElementById('debugger-input')
            const pos = input.value.length - 1
            input.focus()
            input.selectionStart = pos
        }

        function rdb_run(instruction) {
            rdb.command(instruction)
        }

        document.onkeydown = function(event) {
            if (document.activeElement.nodeName == 'INPUT') {

                const input = document.getElementById('debugger-input')

                switch (event.keyCode) {
                    case 13:
                        const value = input.value
                        input.value = ''

                        const output = document.getElementById('debugger-output')

                        if (value == 'clear') {
                            output.innerHTML = ''
                        }
                        else if (value && value.length > 0) {

                            output.innerHTML += `<span class='command'>(rdb) ${value}</span>\n`
                            rdb_run(value)
                        }
                        break

                    case 38: // up arrow
                        input.value = rdb.history.get_previous()
                        focus_dbg_input()
                        break

                    case 40: // down arrow
                        input.value = rdb.history.get_next()
                        focus_dbg_input()
                        break

                    default:
                        console.log(event.keyCode)
                }

                return
            }

            event = event || window.event;

            switch (event.keyCode) {
                case 'S'.charCodeAt(0):
                    run_cycle()
                    break
                case 109: // -
                    set_size(-1)
                    break;
                case 107: // +
                    set_size(+1)
                    break
                case 'D'.charCodeAt(0):
                    for (var i = 0; i < 10; i++) run_cycle()
                    break
                default:
                    console.log(event.keyCode)
            }
        }

        // TEMP
        var visible = false

        function toggle_debugger() {
            const dgb = document.getElementById('rdb')

            visible = !visible

            if (visible) {
                dgb.style.left = '50%'
            } else {
                dgb.style.left = '100%'
            }
        }

    </script>

</head>

<body onload='init_everything()' onresize='draw()'>
    <canvas id='display'></canvas>
    <div id='rdb'>
        <div id='debugger-switch' class='clickable' onclick='toggle_debugger()'><br>&nbsp;&lt;&nbsp;<br>&nbsp;&gt;&nbsp;<br>&nbsp;</div>
        <pre id='debugger-output'></pre>
        <input id='debugger-input' placeholder='(rdb)'>
    </div>

</body>

</html>