Add files via upload

application.fam

@@ -0,0 +1,14 @@
+App(
+    appid="Brainfuck",
+    name="Brainfuck",
+    apptype=FlipperAppType.EXTERNAL,
+    entry_point="brainfuck_app",
+    requires=[
+        "storage",
+        "gui",
+    ],
+    stack_size=4 * 1024,
+    fap_icon="bfico.png",
+    fap_category="Misc",
+    fap_icon_assets="icons",
+)

brainfuck.c

@@ -0,0 +1,139 @@
+#include "brainfuck_i.h"
+
+/*
+    Due to the lack of documentation on the flipper i copied the picopass app,
+    ripped its insides out and used its hollow corpse to build this app inside of.
+
+    i dont know how this stuff works and after 6 hours of trying to learn it, i dont
+*/
+
+bool brainfuck_custom_event_callback(void* context, uint32_t event) {
+    furi_assert(context);
+    BFApp* brainfuck = context;
+    return scene_manager_handle_custom_event(brainfuck->scene_manager, event);
+}
+
+bool brainfuck_back_event_callback(void* context) {
+    furi_assert(context);
+    BFApp* brainfuck = context;
+    return scene_manager_handle_back_event(brainfuck->scene_manager);
+}
+
+BFApp* brainfuck_alloc() {
+    BFApp* brainfuck = malloc(sizeof(BFApp));
+
+    brainfuck->dataSize = 0;
+    brainfuck->bfStack = 0;
+    brainfuck->view_dispatcher = view_dispatcher_alloc();
+    brainfuck->scene_manager = scene_manager_alloc(&brainfuck_scene_handlers, brainfuck);
+    view_dispatcher_enable_queue(brainfuck->view_dispatcher);
+    view_dispatcher_set_event_callback_context(brainfuck->view_dispatcher, brainfuck);
+    view_dispatcher_set_custom_event_callback(brainfuck->view_dispatcher, brainfuck_custom_event_callback);
+    view_dispatcher_set_navigation_event_callback(brainfuck->view_dispatcher, brainfuck_back_event_callback);
+
+    // Open GUI record
+    brainfuck->gui = furi_record_open(RECORD_GUI);
+    view_dispatcher_attach_to_gui(brainfuck->view_dispatcher, brainfuck->gui, ViewDispatcherTypeFullscreen);
+
+    // Open Notification record
+    brainfuck->notifications = furi_record_open(RECORD_NOTIFICATION);
+
+    // Submenu
+    brainfuck->submenu = submenu_alloc();
+    view_dispatcher_add_view(brainfuck->view_dispatcher, brainfuckViewMenu, submenu_get_view(brainfuck->submenu));
+
+    // Popup
+    brainfuck->popup = popup_alloc();
+    view_dispatcher_add_view(brainfuck->view_dispatcher, brainfuckViewPopup, popup_get_view(brainfuck->popup));
+
+    // Text Input
+    brainfuck->text_input = text_input_alloc();
+    view_dispatcher_add_view(brainfuck->view_dispatcher, brainfuckViewTextInput, text_input_get_view(brainfuck->text_input));
+
+    // Dev environment
+    brainfuck->BF_dev_env = bf_dev_env_alloc(brainfuck);
+    view_dispatcher_add_view(brainfuck->view_dispatcher, brainfuckViewDev, bf_dev_env_get_view(brainfuck->BF_dev_env));
+
+    // Exec environment
+    brainfuck->BF_exec_env = bf_exec_env_alloc(brainfuck);
+    view_dispatcher_add_view(brainfuck->view_dispatcher, brainfuckViewExec, bf_exec_env_get_view(brainfuck->BF_exec_env));
+
+    // File path
+    brainfuck->BF_file_path = furi_string_alloc();
+    
+    // Worker
+    initWorker();
+
+    return brainfuck;
+}
+
+void brainfuck_free(BFApp* brainfuck) {
+    furi_assert(brainfuck);
+
+    // Submenu
+    view_dispatcher_remove_view(brainfuck->view_dispatcher, brainfuckViewMenu);
+    submenu_free(brainfuck->submenu);
+
+    // Popup
+    view_dispatcher_remove_view(brainfuck->view_dispatcher, brainfuckViewPopup);
+    popup_free(brainfuck->popup);
+
+    // TextInput
+    view_dispatcher_remove_view(brainfuck->view_dispatcher, brainfuckViewTextInput);
+    text_input_free(brainfuck->text_input);
+
+    //dev env
+    view_dispatcher_remove_view(brainfuck->view_dispatcher, brainfuckViewDev);
+    bf_dev_env_free(brainfuck->BF_dev_env);
+
+    //exec env
+    view_dispatcher_remove_view(brainfuck->view_dispatcher, brainfuckViewExec);
+    bf_exec_env_free(brainfuck->BF_exec_env);
+
+    // View Dispatcher
+    view_dispatcher_free(brainfuck->view_dispatcher);
+
+    // Scene Manager
+    scene_manager_free(brainfuck->scene_manager);
+
+    // GUI
+    furi_record_close(RECORD_GUI);
+    brainfuck->gui = NULL;
+
+    // Notifications
+    furi_record_close(RECORD_NOTIFICATION);
+    brainfuck->notifications = NULL;
+
+    free(brainfuck);
+}
+
+void brainfuck_show_loading_popup(void* context, bool show) {
+    BFApp* brainfuck = context;
+    TaskHandle_t timer_task = xTaskGetHandle(configTIMER_SERVICE_TASK_NAME);
+
+    if(show) {
+        // Raise timer priority so that animations can play
+        vTaskPrioritySet(timer_task, configMAX_PRIORITIES - 1);
+        view_dispatcher_switch_to_view(brainfuck->view_dispatcher, brainfuckViewLoading);
+    } else {
+        // Restore default timer priority
+        vTaskPrioritySet(timer_task, configTIMER_TASK_PRIORITY);
+    }
+}
+
+int32_t brainfuck_app(void* p) {
+    UNUSED(p);
+    BFApp* brainfuck = brainfuck_alloc();
+    if(!brainfuck){ return 0; }
+
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    storage_simply_mkdir(storage, "/ext/brainfuck");
+
+    scene_manager_next_scene(brainfuck->scene_manager, brainfuckSceneStart);
+
+    view_dispatcher_run(brainfuck->view_dispatcher);
+
+    brainfuck_free(brainfuck);
+
+    return 0;
+}

brainfuck.h

@@ -0,0 +1,3 @@
+#pragma once
+
+typedef struct BFApp BFApp;

brainfuck_i.h

@@ -0,0 +1,84 @@
+#pragma once
+
+typedef struct BFDevEnv BFDevEnv;
+typedef struct BFExecEnv BFExecEnv;
+typedef unsigned char rByte;
+
+#include "brainfuck.h"
+#include "worker.h"
+
+#include <furi.h>
+#include <gui/gui.h>
+#include <gui/view_dispatcher.h>
+#include <gui/scene_manager.h>
+#include <notification/notification_messages.h>
+
+#include <gui/modules/submenu.h>
+#include <gui/modules/popup.h>
+#include <gui/modules/loading.h>
+#include <gui/modules/text_input.h>
+#include <gui/modules/widget.h>
+
+#include <dialogs/dialogs.h>
+#include <input/input.h>
+
+#include "scenes/brainfuck_scene.h"
+
+#include "views/bf_dev_env.h"
+#include "views/bf_exec_env.h"
+
+#include <storage/storage.h>
+#include <lib/toolbox/path.h>
+#include <brainfuck_icons.h>
+
+#include <storage/storage.h>
+#include <stream/stream.h>
+#include <stream/buffered_file_stream.h>
+#include <toolbox/stream/file_stream.h>
+
+#define BF_INST_BUFFER_SIZE 1024
+#define BF_STACK_INITIAL_SIZE 128
+#define BF_STACK_STEP_SIZE 32
+#define BF_OUTPUT_SIZE 512
+
+enum brainfuckCustomEvent {
+    // Reserve first 100 events for button types and indexes, starting from 0
+    brainfuckCustomEventReserved = 100,
+
+    brainfuckCustomEventViewExit,
+    brainfuckCustomEventWorkerExit,
+    brainfuckCustomEventByteInputDone,
+    brainfuckCustomEventTextInputDone,
+};
+
+typedef enum {
+    EventTypeTick,
+    EventTypeKey,
+} EventType;
+
+struct BFApp {
+    ViewDispatcher* view_dispatcher;
+    Gui* gui;
+    NotificationApp* notifications;
+    SceneManager* scene_manager;
+    Submenu* submenu;
+    Popup* popup;
+    TextInput* text_input;
+    FuriString* BF_file_path;
+    BFDevEnv* BF_dev_env;
+    BFExecEnv* BF_exec_env;
+    int dataSize;
+    rByte dataBuffer[BF_INST_BUFFER_SIZE];
+    rByte* bfStack;
+};
+
+typedef enum {
+    brainfuckViewMenu,
+    brainfuckViewPopup,
+    brainfuckViewLoading,
+    brainfuckViewTextInput,
+    brainfuckViewWidget,
+    brainfuckViewDev,
+    brainfuckViewExec,
+} brainfuckView;
+

picopass.h

@@ -0,0 +1,3 @@
+#pragma once
+
+typedef struct brainfuck brainfuck;

scenes/brainfuck_scene.c

@@ -0,0 +1,30 @@
+#include "brainfuck_scene.h"
+
+// Generate scene on_enter handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_enter,
+void (*const brainfuck_on_enter_handlers[])(void*) = {
+#include "brainfuck_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_event handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_event,
+bool (*const brainfuck_on_event_handlers[])(void* context, SceneManagerEvent event) = {
+#include "brainfuck_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers array
+#define ADD_SCENE(prefix, name, id) prefix##_scene_##name##_on_exit,
+void (*const brainfuck_on_exit_handlers[])(void* context) = {
+#include "brainfuck_scene_config.h"
+};
+#undef ADD_SCENE
+
+// Initialize scene handlers configuration structure
+const SceneManagerHandlers brainfuck_scene_handlers = {
+    .on_enter_handlers = brainfuck_on_enter_handlers,
+    .on_event_handlers = brainfuck_on_event_handlers,
+    .on_exit_handlers = brainfuck_on_exit_handlers,
+    .scene_num = brainfuckSceneNum,
+};

scenes/brainfuck_scene.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <gui/scene_manager.h>
+
+// Generate scene id and total number
+#define ADD_SCENE(prefix, name, id) brainfuckScene##id,
+typedef enum {
+#include "brainfuck_scene_config.h"
+    brainfuckSceneNum,
+} brainfuckScene;
+#undef ADD_SCENE
+
+extern const SceneManagerHandlers brainfuck_scene_handlers;
+
+// Generate scene on_enter handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_enter(void*);
+#include "brainfuck_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_event handlers declaration
+#define ADD_SCENE(prefix, name, id) \
+    bool prefix##_scene_##name##_on_event(void* context, SceneManagerEvent event);
+#include "brainfuck_scene_config.h"
+#undef ADD_SCENE
+
+// Generate scene on_exit handlers declaration
+#define ADD_SCENE(prefix, name, id) void prefix##_scene_##name##_on_exit(void* context);
+#include "brainfuck_scene_config.h"
+#undef ADD_SCENE

scenes/brainfuck_scene_config.h

@@ -0,0 +1,5 @@
+ADD_SCENE(brainfuck, start, Start)
+ADD_SCENE(brainfuck, file_select, FileSelect)
+ADD_SCENE(brainfuck, file_create, FileCreate)
+ADD_SCENE(brainfuck, dev_env, DevEnv)
+ADD_SCENE(brainfuck, exec_env, ExecEnv)

scenes/brainfuck_scene_dev.c

@@ -0,0 +1,16 @@
+#include "../brainfuck_i.h"
+
+void brainfuck_scene_dev_env_on_enter(void* context) {
+    BFApp* app = context;
+    view_dispatcher_switch_to_view(app->view_dispatcher, brainfuckViewDev);
+}
+
+bool brainfuck_scene_dev_env_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void brainfuck_scene_dev_env_on_exit(void* context) {
+    UNUSED(context);
+}

scenes/brainfuck_scene_exec.c

@@ -0,0 +1,16 @@
+#include "../brainfuck_i.h"
+
+void brainfuck_scene_exec_env_on_enter(void* context) {
+    BFApp* app = context;
+    view_dispatcher_switch_to_view(app->view_dispatcher, brainfuckViewExec);
+}
+
+bool brainfuck_scene_exec_env_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void brainfuck_scene_exec_env_on_exit(void* context) {
+    UNUSED(context);
+}

scenes/brainfuck_scene_file_create.c

@@ -0,0 +1,54 @@
+#include "../brainfuck_i.h"
+
+void file_name_text_input_callback(void* context) {
+    BFApp* app = context;
+    view_dispatcher_send_custom_event(app->view_dispatcher, brainfuckCustomEventTextInputDone);
+}
+
+char tmpName[64] = {};
+rByte empty[1] = {0x00};
+void brainfuck_scene_file_create_on_enter(void* context) {
+    BFApp* app = context;
+    TextInput* text_input = app->text_input;
+
+    text_input_set_header_text(text_input, "New script name");
+    text_input_set_result_callback(
+        text_input,
+        file_name_text_input_callback,
+        app,
+        tmpName,
+        64,
+        true);
+
+    view_dispatcher_switch_to_view(app->view_dispatcher, brainfuckViewTextInput);
+}
+
+bool brainfuck_scene_file_create_on_event(void* context, SceneManagerEvent event) {
+    BFApp* app = context;
+    UNUSED(app);
+    
+    bool consumed = false;
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == brainfuckCustomEventTextInputDone) {
+            furi_string_cat_printf(app->BF_file_path, "/ext/brainfuck/%s.b", tmpName);
+
+            //remove old file
+            Storage* storage = furi_record_open(RECORD_STORAGE);
+            storage_simply_remove(storage, furi_string_get_cstr(app->BF_file_path));
+
+            //save new file
+            Stream* stream = buffered_file_stream_alloc(storage);
+            buffered_file_stream_open(stream, furi_string_get_cstr(app->BF_file_path), FSAM_WRITE, FSOM_CREATE_ALWAYS);
+            stream_write(stream, empty, 1);
+            buffered_file_stream_close(stream);
+
+            //scene_manager_next_scene(app->scene_manager, brainfuckSceneFileSelect);
+            scene_manager_next_scene(app->scene_manager, brainfuckSceneDevEnv);
+        }
+    }
+    return consumed;
+}
+
+void brainfuck_scene_file_create_on_exit(void* context) {
+    UNUSED(context);
+}

scenes/brainfuck_scene_file_select.c

@@ -0,0 +1,35 @@
+#include "../brainfuck_i.h"
+
+void brainfuck_scene_file_select_on_enter(void* context) {
+    BFApp* app = context;
+
+    DialogsApp* dialogs = furi_record_open("dialogs");
+    FuriString* path;
+    path = furi_string_alloc();
+    furi_string_set(path, "/ext/brainfuck");
+
+    DialogsFileBrowserOptions browser_options;
+    dialog_file_browser_set_basic_options(&browser_options, ".b", &I_bfico);
+    browser_options.base_path = "/ext/brainfuck";
+    browser_options.hide_ext = false;
+
+    bool selected = dialog_file_browser_show(dialogs, path, path, &browser_options);
+
+    if(selected){
+        furi_string_set(app->BF_file_path, path);
+        scene_manager_next_scene(app->scene_manager, brainfuckSceneDevEnv);
+    }
+    else{
+        scene_manager_search_and_switch_to_previous_scene(app->scene_manager, brainfuckSceneStart);
+    }
+}
+
+bool brainfuck_scene_file_select_on_event(void* context, SceneManagerEvent event) {
+    UNUSED(context);
+    UNUSED(event);
+    return false;
+}
+
+void brainfuck_scene_file_select_on_exit(void* context) {
+    UNUSED(context);
+}

scenes/brainfuck_scene_start.c

@@ -0,0 +1,43 @@
+#include "../brainfuck_i.h"
+enum SubmenuIndex {
+    SubmenuIndexNew,
+    SubmenuIndexOpen,
+};
+
+void brainfuck_scene_start_submenu_callback(void* context, uint32_t index) {
+    BFApp* brainfuck = context;
+    view_dispatcher_send_custom_event(brainfuck->view_dispatcher, index);
+}
+void brainfuck_scene_start_on_enter(void* context) {
+    BFApp* brainfuck = context;
+
+    Submenu* submenu = brainfuck->submenu;
+    submenu_add_item(submenu, "New", SubmenuIndexNew, brainfuck_scene_start_submenu_callback, brainfuck);
+    submenu_add_item(submenu, "Open", SubmenuIndexOpen, brainfuck_scene_start_submenu_callback, brainfuck);
+
+    submenu_set_selected_item(submenu, scene_manager_get_scene_state(brainfuck->scene_manager, brainfuckSceneStart));
+    view_dispatcher_switch_to_view(brainfuck->view_dispatcher, brainfuckViewMenu);
+}
+
+bool brainfuck_scene_start_on_event(void* context, SceneManagerEvent event) {
+    BFApp* brainfuck = context;
+    bool consumed = false;
+
+    if(event.type == SceneManagerEventTypeCustom) {
+        if(event.event == SubmenuIndexNew) {
+            scene_manager_next_scene(brainfuck->scene_manager, brainfuckSceneFileCreate);
+            consumed = true;
+        } else if(event.event == SubmenuIndexOpen) {
+            scene_manager_next_scene(brainfuck->scene_manager, brainfuckSceneFileSelect);
+            consumed = true;
+        }
+        scene_manager_set_scene_state(brainfuck->scene_manager, brainfuckSceneStart, event.event);
+    }
+
+    return consumed;
+}
+
+void brainfuck_scene_start_on_exit(void* context) {
+    BFApp* brainfuck = context;
+    submenu_reset(brainfuck->submenu);
+}

views/bf_dev_env.c

@@ -0,0 +1,324 @@
+#include "bf_dev_env.h"
+#include <gui/elements.h>
+
+typedef struct BFDevEnv {
+    View* view;
+    DevEnvOkCallback callback;
+    void* context;
+    BFApp* appDev;
+} BFDevEnv;
+
+typedef struct {
+    rByte row;
+    rByte col;
+} BFDevEnvModel;
+
+typedef struct{
+    int up;
+    int down;
+    int left;
+    int right;
+}bMapping;
+
+static bool bf_dev_process_up(BFDevEnv* devEnv);
+static bool bf_dev_process_down(BFDevEnv* devEnv);
+static bool bf_dev_process_left(BFDevEnv* devEnv);
+static bool bf_dev_process_right(BFDevEnv* devEnv);
+static bool bf_dev_process_ok(BFDevEnv* devEnv, InputEvent* event);
+
+BFApp* appDev;
+
+int selectedButton = 0;
+int saveNotifyCountdown = 0;
+static bMapping buttonMappings[11] = {
+    {4, 4, 8, 1},
+    {5, 5, 0, 2},
+    {6, 6, 1, 3},
+    {7, 7, 2, 8},
+    {0, 0, 10, 5},
+    {1, 1, 4, 6},
+    {2, 2, 5, 7},
+    {3, 3, 6, 10},
+    {10, 9, 3, 0},
+    {8, 10, 3, 0},
+    {9, 8, 7, 4}
+};
+
+static void bf_dev_draw_button(Canvas* canvas, int x, int y, bool selected, const char* lbl){
+    UNUSED(lbl);
+
+    if(selected){
+        canvas_draw_rbox(canvas, x, y, 18, 18, 3);
+        canvas_invert_color(canvas);
+        canvas_set_font(canvas, FontKeyboard);
+        canvas_draw_str_aligned(canvas, x + (18/2), y + (18/2) - 1, AlignCenter, AlignCenter, lbl);
+        canvas_invert_color(canvas);
+    }
+    else{
+        canvas_draw_rbox(canvas, x, y, 18, 18, 3);
+        canvas_invert_color(canvas);
+        canvas_draw_rbox(canvas, x+2, y-1, 16, 17, 3);
+        canvas_invert_color(canvas);
+        canvas_draw_rframe(canvas, x, y, 18, 18, 3);
+        canvas_set_font(canvas, FontKeyboard);
+        canvas_draw_str_aligned(canvas, x + (18/2), y + (18/2) - 1, AlignCenter, AlignCenter, lbl);
+    }
+}
+
+static void bf_dev_draw_callback(Canvas* canvas, void* _model) {
+    UNUSED(_model);
+
+    //buttons
+    bf_dev_draw_button(canvas, 2, 24, (selectedButton == 0), "+"); //T 0
+    bf_dev_draw_button(canvas, 22, 24, (selectedButton == 1),  "-"); //T 1
+    bf_dev_draw_button(canvas, 42, 24, (selectedButton == 2),  "<"); //T 2
+    bf_dev_draw_button(canvas, 62, 24, (selectedButton == 3),  ">"); //T 3
+    bf_dev_draw_button(canvas, 2, 44, (selectedButton == 4),  "["); //B 0
+    bf_dev_draw_button(canvas, 22, 44, (selectedButton == 5),  "]"); //B 1
+    bf_dev_draw_button(canvas, 42, 44, (selectedButton == 6),  "."); //B 2
+    bf_dev_draw_button(canvas, 62, 44, (selectedButton == 7),  ","); //B 3
+
+    //save, run, backspace
+    canvas_draw_icon(canvas, 110, 24, (selectedButton == 8) ? &I_KeyBackspaceSelected_16x9 : &I_KeyBackspace_16x9);
+    canvas_draw_icon(canvas, 102, 38, (selectedButton == 9) ? &I_KeyRunSel_24x11 : &I_KeyRun_24x11);
+    canvas_draw_icon(canvas, 102, 51, (selectedButton == 10) ? &I_KeySaveSelected_24x11 : &I_KeySave_24x11);
+
+    if(saveNotifyCountdown > 0){
+        canvas_draw_icon(canvas, 98, 54, &I_ButtonRightSmall_3x5);
+        saveNotifyCountdown--;
+    }
+
+    //textbox
+    canvas_draw_rframe(canvas, 2, 2, 124, 20, 2);
+    canvas_set_font(canvas, FontKeyboard);
+
+    int dbOffset = 0;
+    if(appDev->dataSize > 20){
+        dbOffset = (appDev->dataSize - 20);
+    }
+    
+    //canvas_draw_str(canvas, 5, 15, (char*)(appDev->dataBuffer + dbOffset));
+    canvas_draw_str_aligned(canvas, 4, 12, AlignLeft, AlignCenter, (char*)(appDev->dataBuffer + dbOffset));
+}
+
+
+static bool bf_dev_input_callback(InputEvent* event, void* context) {
+    furi_assert(context);
+    BFDevEnv* devEnv = context;
+    bool consumed = false;
+
+    if(event->type == InputTypeShort) {
+        if(event->key == InputKeyRight) {
+            consumed = bf_dev_process_right(devEnv);
+        } else if(event->key == InputKeyLeft) {
+            consumed = bf_dev_process_left(devEnv);
+        } else if(event->key == InputKeyUp) {
+            consumed = bf_dev_process_up(devEnv);
+        } else if(event->key == InputKeyDown) {
+            consumed = bf_dev_process_down(devEnv);
+        }
+    } else if(event->key == InputKeyOk) {
+        consumed = bf_dev_process_ok(devEnv, event);
+    }
+
+    return consumed;
+}
+
+static bool bf_dev_process_up(BFDevEnv* devEnv) {
+    UNUSED(devEnv);
+    selectedButton = buttonMappings[selectedButton].up;
+    return true;
+}
+
+static bool bf_dev_process_down(BFDevEnv* devEnv) {
+    UNUSED(devEnv);
+    selectedButton = buttonMappings[selectedButton].down;
+    return true;
+}
+
+static bool bf_dev_process_left(BFDevEnv* devEnv) {
+    UNUSED(devEnv);
+    selectedButton = buttonMappings[selectedButton].left;
+    return true;
+}
+
+static bool bf_dev_process_right(BFDevEnv* devEnv) {
+    UNUSED(devEnv);
+    selectedButton = buttonMappings[selectedButton].right;
+    return true;
+}
+
+static bool bf_dev_process_ok(BFDevEnv* devEnv, InputEvent* event) {
+    UNUSED(devEnv);
+    UNUSED(event);
+
+    if(event->type != InputTypePress){ return false; }
+
+    switch(selectedButton){
+        case 0:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'+'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 1:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'-'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 2:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'<'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 3:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'>'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 4:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'['; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 5:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)']'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 6:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)'.'; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 7:
+        {
+            if(appDev->dataSize < BF_INST_BUFFER_SIZE){ 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)','; 
+                appDev->dataSize++; }
+            break;
+        }
+
+        case 8:
+        {
+            if(appDev->dataSize > 0){
+                appDev->dataSize--; 
+                appDev->dataBuffer[appDev->dataSize] = (rByte)0x00;}
+            break;
+        }
+
+        case 9:
+        {
+            scene_manager_next_scene(appDev->scene_manager, brainfuckSceneExecEnv);
+            break;
+        }
+
+        case 10:
+        {
+            //remove old file
+            Storage* storage = furi_record_open(RECORD_STORAGE);
+            storage_simply_remove(storage, furi_string_get_cstr(appDev->BF_file_path));
+
+            //save new file
+            Stream* stream = buffered_file_stream_alloc(storage);
+            buffered_file_stream_open(stream, furi_string_get_cstr(appDev->BF_file_path), FSAM_WRITE, FSOM_CREATE_ALWAYS);
+            stream_write(stream, appDev->dataBuffer, appDev->dataSize);
+            buffered_file_stream_close(stream);
+
+            //notify
+            saveNotifyCountdown = 5;
+            break;
+        }
+    }
+
+    bool consumed = false;
+    return consumed;
+}
+
+static void bf_dev_enter_callback(void* context) {
+    furi_assert(context);
+    BFDevEnv* devEnv = context;
+
+    with_view_model(
+        devEnv->view,
+        BFDevEnvModel* model,
+        {
+            model->col = 0;
+            model->row = 0;
+        },
+        true);
+
+    appDev = devEnv->appDev;
+
+    //clear the bf instruction buffer
+    memset(appDev->dataBuffer, 0x00, BF_INST_BUFFER_SIZE);
+
+    //open the file
+    Storage* storage = furi_record_open(RECORD_STORAGE);
+    Stream* stream = buffered_file_stream_alloc(storage);
+    buffered_file_stream_open(stream, furi_string_get_cstr(appDev->BF_file_path), FSAM_READ, FSOM_OPEN_EXISTING);
+
+    //read into the buffer
+    appDev->dataSize = stream_size(stream);
+    stream_read(stream, appDev->dataBuffer, appDev->dataSize);
+    buffered_file_stream_close(stream);
+
+    //find the end of the file to begin editing
+    int tptr = 0;
+    while(appDev->dataBuffer[tptr] != 0x00){ tptr++; }
+    appDev->dataSize = tptr;
+}
+
+BFDevEnv* bf_dev_env_alloc(BFApp* appDev) {
+    BFDevEnv* devEnv = malloc(sizeof(BFDevEnv));
+
+    devEnv->view = view_alloc();
+    devEnv->appDev = appDev;
+    view_allocate_model(devEnv->view, ViewModelTypeLocking, sizeof(BFDevEnvModel));
+
+    with_view_model(
+        devEnv->view,
+        BFDevEnvModel* model,
+        {
+            model->col = 0;
+            model->row = 0;
+        },
+        true);
+
+    view_set_context(devEnv->view, devEnv);
+    view_set_draw_callback(devEnv->view, bf_dev_draw_callback);
+    view_set_input_callback(devEnv->view, bf_dev_input_callback);
+    view_set_enter_callback(devEnv->view, bf_dev_enter_callback);
+    return devEnv;
+}
+
+void bf_dev_env_free(BFDevEnv* devEnv) {
+    furi_assert(devEnv);
+    view_free(devEnv->view);
+    free(devEnv);
+}
+
+View* bf_dev_env_get_view(BFDevEnv* devEnv) {
+    furi_assert(devEnv);
+    return devEnv->view;
+}

views/bf_dev_env.h

@@ -0,0 +1,18 @@
+#pragma once
+#include "../brainfuck_i.h"
+#include <gui/view.h>
+
+typedef void (*DevEnvOkCallback)(InputType type, void* context);
+
+BFDevEnv* bf_dev_env_alloc(BFApp* application);
+
+void bf_dev_set_file_path(FuriString* path);
+
+void bf_dev_env_free(BFDevEnv* devEnv);
+
+View* bf_dev_env_get_view(BFDevEnv* devEnv);
+
+void bf_dev_env_set_ok(
+    BFDevEnv* devEnv,
+    DevEnvOkCallback callback,
+    void* context);

views/bf_exec_env.c

@@ -0,0 +1,123 @@
+
+#include "bf_exec_env.h"
+#include <gui/elements.h>
+
+typedef struct BFExecEnv {
+    View* view;
+    ExecEnvOkCallback callback;
+    void* context;
+    BFApp* appExec;
+} BFExecEnv;
+
+typedef struct {
+    rByte row;
+    rByte col;
+} BFExecEnvModel;
+
+static bool bf_exec_process_up(BFExecEnv* ExecEnv);
+static bool bf_exec_process_down(BFExecEnv* ExecEnv);
+static bool bf_exec_process_left(BFExecEnv* ExecEnv);
+static bool bf_exec_process_right(BFExecEnv* ExecEnv);
+static bool bf_exec_process_ok(BFExecEnv* ExecEnv, InputEvent* event);
+
+BFApp* appExec;
+
+static void bf_exec_draw_callback(Canvas* canvas, void* _model) {
+    UNUSED(_model);
+    canvas_draw_str(canvas, 2, 13, workerGetOutput());
+}
+
+static bool bf_exec_input_callback(InputEvent* event, void* context) {
+    furi_assert(context);
+    BFExecEnv* ExecEnv = context;
+    bool consumed = false;
+
+    if(event->type == InputTypeShort) {
+        if(event->key == InputKeyRight) {
+            consumed = bf_exec_process_right(ExecEnv);
+        } else if(event->key == InputKeyLeft) {
+            consumed = bf_exec_process_left(ExecEnv);
+        } else if(event->key == InputKeyUp) {
+            consumed = bf_exec_process_up(ExecEnv);
+        } else if(event->key == InputKeyDown) {
+            consumed = bf_exec_process_down(ExecEnv);
+        }
+    } else if(event->key == InputKeyOk) {
+        consumed = bf_exec_process_ok(ExecEnv, event);
+    }
+
+    return consumed;
+}
+
+static bool bf_exec_process_up(BFExecEnv* ExecEnv) {
+    UNUSED(ExecEnv);    
+    return true;
+}
+
+static bool bf_exec_process_down(BFExecEnv* ExecEnv) {
+    UNUSED(ExecEnv);
+    return true;
+}
+
+static bool bf_exec_process_left(BFExecEnv* ExecEnv) {
+    UNUSED(ExecEnv);
+    return true;
+}
+
+static bool bf_exec_process_right(BFExecEnv* ExecEnv) {
+    UNUSED(ExecEnv);
+    return true;
+}
+
+static bool bf_exec_process_ok(BFExecEnv* ExecEnv, InputEvent* event) {
+    UNUSED(ExecEnv);
+    UNUSED(event);
+    if(event->type != InputTypePress){ return false; }
+
+    FuriThread* t = furi_thread_alloc_ex("BFWorker", 1024, (void*)beginWorker, NULL);
+    furi_thread_start(t);
+
+    bool consumed = false;
+    return consumed;
+}
+
+static void bf_exec_enter_callback(void* context) {
+    furi_assert(context);
+    BFExecEnv* ExecEnv = context;
+    appExec = ExecEnv->appExec;
+    UNUSED(ExecEnv);
+}
+
+BFExecEnv* bf_exec_env_alloc(BFApp* appExec) {
+    BFExecEnv* ExecEnv = malloc(sizeof(BFExecEnv));
+
+    ExecEnv->view = view_alloc();
+    ExecEnv->appExec = appExec;
+    view_allocate_model(ExecEnv->view, ViewModelTypeLocking, sizeof(BFExecEnvModel));
+
+    with_view_model(
+        ExecEnv->view,
+        BFExecEnvModel* model,
+        {
+            model->col = 0;
+            model->row = 0;
+        },
+        true);
+
+    view_set_context(ExecEnv->view, ExecEnv);
+    view_set_draw_callback(ExecEnv->view, bf_exec_draw_callback);
+    view_set_input_callback(ExecEnv->view, bf_exec_input_callback);
+    view_set_enter_callback(ExecEnv->view, bf_exec_enter_callback);
+    return ExecEnv;
+}
+
+void bf_exec_env_free(BFExecEnv* ExecEnv) {
+    furi_assert(ExecEnv);
+    view_free(ExecEnv->view);
+    free(ExecEnv);
+}
+
+View* bf_exec_env_get_view(BFExecEnv* ExecEnv) {
+    furi_assert(ExecEnv);
+    return ExecEnv->view;
+}

views/bf_exec_env.h

@@ -0,0 +1,18 @@
+#pragma once
+#include "../brainfuck_i.h"
+#include <gui/view.h>
+
+typedef void (*ExecEnvOkCallback)(InputType type, void* context);
+
+BFExecEnv* bf_exec_env_alloc(BFApp* application);
+
+void bf_exec_set_file_path(FuriString* path);
+
+void bf_exec_env_free(BFExecEnv* execEnv);
+
+View* bf_exec_env_get_view(BFExecEnv* execEnv);
+
+void bf_exec_env_set_ok(
+    BFExecEnv* execEnv,
+    ExecEnvOkCallback callback,
+    void* context);

worker.c

@@ -0,0 +1,19 @@
+#include "brainfuck_i.h"
+
+char* wOutput = 0;
+
+uint32_t* bfStack = 0;
+int stackSize = BF_STACK_INITIAL_SIZE;
+
+char* workerGetOutput(){
+    return wOutput;
+}
+
+void initWorker(){
+    wOutput = (char*)malloc(BF_OUTPUT_SIZE);
+    bfStack = (uint32_t*)malloc(BF_STACK_INITIAL_SIZE);
+}
+
+void beginWorker(){
+
+}

worker.h

@@ -0,0 +1,3 @@
+void initWorker();
+char* workerGetOutput();
+void beginWorker();