Tag v0.0.4b release.

CHANGELOG.md

@@ -0,0 +1,15 @@
+# prgmTRANSFER
+
+## v0.0.1b
+- Initial beta release
+
+## v0.0.2b
+- Fix corrupted screen, crash, or garbage data when receiving some variables from Archive.
+- Fix incorrect file names for images.
+
+## v0.0.3b
+- Use new usbdrvce error handling features.
+- Improve build system.
+
+## v0.0.4b
+- Recompile for new usbdrvce.

LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2019 - 2021 Jacob "jacobly" Young
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,4 +1,4 @@
-# prgmTRANSFER v0.0.1b
+# prgmTRANSFER v0.0.4b
 
 ### This software is still in beta, no liability for corrupted or lost files, etc!
 
@@ -7,8 +7,13 @@ Running this program on the calculator will allow you to transfer variable files
 Windows 10/Ubuntu 20.04/Android with preinstalled software, or other OSes with various
 PTP or MTP transfer software.
 
+## Known Working Computer OSes
+- Windows 10 using the default file explorer, check under Computer after connecting.
+- Ubuntu 20.04 using the default Gnome Files (nautilus) or Dolphin.
+- Android 11 using the builtin Files application, check notifications after connecting to open.
+
 ## Installation
-1. Send [TRANSFER.8xp release](https://github.com/jacobly0/transfer/releases/latest) and [nightly clibs.8xg from usbdrvce branch](https://jacobly.com/a/toolchain/usbdrvce/clibs.zip) to your calculator using other transfer software.
+1. Send [TRANSFER.8xp release](https://github.com/jacobly0/transfer/releases/latest) and [nightly clibs.8xg from usbdrvce branch](https://jacobly.com/artifact?repo=toolchain&branch=usbdrvce&file=clibs) to your calculator using other transfer software.
 1. Run `Asm(prgmTRANSFER)` and then plug-and-play with a usb cable to supported OSes, or using supported software.
 1. The screen should display a debug log that can be ignored unless things go wrong, in which case the last few lines should be reported if there is an issue.
 1. Press `clear` to exit.
@@ -23,7 +28,8 @@ PTP or MTP transfer software.
 - [ ] Receiving a rom dump.
 - [ ] Copying variables in either RAM or Archive to another name in either RAM or Archive.
 - [x] Getting free space in RAM or Archive.
-- [x] Geting and seting the current time.
-- [x] Geting the current battery level.
-- [ ] Geting a device icon for displaying in MTP program UIs.
+- [x] Getting the current time.
+- [ ] Setting the current time.
+- [x] Getting the current battery level.
+- [ ] ~~Getting a device icon for displaying in MTP program UIs.~~
 - [ ] Optimize for a smaller program size.

font/genfont.c

@@ -5,14 +5,14 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <uchar.h>
 
 int main(int argc, char **argv) {
     FT_Library library;
     FT_Error error;
     FT_Face face;
     if ((error = FT_Init_FreeType(&library)) ||
-        (error = FT_New_Face(library, "/usr/share/fonts/fonts-master/apache/robotomono/RobotoMono-Medium.ttf", 0, &face)) ||
+        ((error = FT_New_Face(library, "/usr/share/fonts/fonts-master/apache/robotomono/RobotoMono-Medium.ttf", 0, &face)) &&
+         (error = FT_New_Face(library, "/Library/Fonts/RobotoMono-Medium.ttf", 0, &face))) ||
         (error = FT_Set_Char_Size(face, 0, 550, 0, 141)) ||
         (error = FT_Load_Char(face, U'w', FT_LOAD_DEFAULT))) return error;
     int width = face->glyph->advance.x >> 6, height = face->size->metrics.height >> 6, height_bytes = (height + 1) >> 1;
@@ -45,7 +45,7 @@ int main(int argc, char **argv) {
             "const uint8_t font[0x100][FONT_WIDTH][FONT_HEIGHT_BYTES] = {\n");
     uint8_t *bitmap = calloc(width, height_bytes);
     if (!bitmap) return 1;
-    for (char32_t c = U'\0'; c <= U'\xFF'; ++c) {
+    for (uint32_t c = U'\0'; c <= U'\xFF'; ++c) {
         memset(bitmap, 0, width * height_bytes);
         if ((error = FT_Load_Char(face, c, FT_LOAD_DEFAULT)) ||
             (error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL))) return error;

makefile

@@ -2,29 +2,47 @@
 # Makefile Options
 # ----------------------------
 
-NAME ?= TRANSFER
-ICON ?= transfer.png
-DESCRIPTION ?= "Variable Transfer Program"
-COMPRESSED ?= YES
-ARCHIVED ?= YES
+NATIVECC = clang
 
-CFLAGS ?= -Wall -Wextra -Oz
-CXXFLAGS ?= -Wall -Wextra -Oz
+NAME = TRANSFER
+MAJOR_VERSION = 0
+MINOR_VERSION = 0
+PATCH_VERSION = 4
+KIND_VERSION = n
+BUILD_VERSION = -$(shell git rev-parse --short HEAD)
+FULL_VERSION = v$(MAJOR_VERSION).$(MINOR_VERSION).$(PATCH_VERSION)$(KIND_VERSION)$(BUILD_VERSION)
+ICON = transfer.png
+DESCRIPTION = "Variable Transfer Program $(FULL_VERSION)"
+COMPRESSED = YES
+ARCHIVED = YES
 
-EXTRA_CSOURCES ?= $(if $(wildcard src/font.c),,src/font.c)
-EXTRA_USERHEADERS ?= src/ti84pceg.inc src/font.h
-EXTRA_CLEAN ?= src/font.c src/font.h font/genfont
+FLAGS = -Wall -Wextra -Oz -DVERSION='"$(FULL_VERSION)"'
+CFLAGS = $(FLAGS)
+CXXFLAGS = $(FLAGS)
+
+EXTRA_CSOURCES = src/font.c
+EXTRA_USERHEADERS = src/ti84pceg.inc src/font.h
+EXTRA_CLEAN = src/font.c src/font.h font/genfont
 
 # ----------------------------
 
-ifndef CEDEV
-$(error CEDEV environment path variable is not set)
-endif
+include $(shell cedev-config --makefile)
 
-include $(CEDEV)/meta/makefile.mk
+all:
+	$(Q)echo [done] prgm$(NAME) $(FULL_VERSION)
 
-src/font.h src/font.c: font/genfont
-	@$<
+beta: KIND_VERSION = b
+beta: BUILD_VERSION =
+beta: all
 
-font/genfont: font/genfont.c
-	@clang -O3 -flto $< `pkg-config --cflags --libs freetype2` -o $@
+release: BUILD_VERSION =
+release: REV_VERSION =
+release: all
+
+src/font.h src/font.c: font/genfont makefile
+	$(Q)echo [running] $<
+	$(Q)$<
+
+font/genfont: font/genfont.c makefile
+	$(Q)echo [compiling] $<
+	$(Q)$(NATIVECC) -O3 -flto $< `pkg-config --cflags --libs freetype2` -o $@

src/main.c

@@ -14,6 +14,7 @@ typedef struct mtp_global mtp_global_t;
 #define usb_transfer_data_t mtp_global_t
 
 /* Includes */
+#include "font.h"
 #include "ui.h"
 #include "var.h"
 
@@ -36,6 +37,8 @@ typedef struct mtp_global mtp_global_t;
 
 #define lengthof(array) (sizeof(array) / sizeof(*(array)))
 
+#define charsof(literal) (lengthof(literal) - 1)
+
 #define COUNT_EACH(...) +1
 
 #define OBJECT_BUFFER \
@@ -59,7 +62,9 @@ typedef struct mtp_global mtp_global_t;
     X(SET_DEVICE_PROP_VALUE) \
     X(MOVE_OBJECT)
 
-#define FOR_EACH_SUPP_EVT(X)
+#define FOR_EACH_SUPP_EVT(X) \
+    X(OBJECT_ADDED)          \
+    X(OBJECT_REMOVED)
 
 #define FOR_EACH_SUPP_DP(X)        \
     X(uint8, BATTERY_LEVEL, RANGE) \
@@ -123,13 +128,13 @@ typedef struct mtp_global mtp_global_t;
     }
 #define DATE_TIME_GET_SET 1
 #define DATE_TIME_GET(current) \
-    get_datetime(current.string)
+    get_datetime(&current)
 #define DATE_TIME_SET(new)
 
 #define PERCEIVED_DEVICE_TYPE_DEF 0
 #define PERCEIVED_DEVICE_TYPE_GET_SET 0
 #define PERCEIVED_DEVICE_TYPE_GET(current) \
-    current = 3
+    current = 5
 #define PERCEIVED_DEVICE_TYPE_SET(new)
 
 /* MTP Types */
@@ -162,16 +167,16 @@ typedef usb_error_t(*mtp_transaction_callback_t)(
 #define Los_specific      L"MSFT100\1"
 #define Lmtp_extensions   L"microsoft.com: 1.0;"
 #define Lmanufacturer     L"Texas Instruments Incorporated"
-#define Lproduct          L"TI-83 Premium CE" /* default must be longer than alt */
-#define Lproduct84        L"TI-84 Plus CE"
-#define Ldevice_version   L"2.20"
+#define Lproduct          L"TI-84 Plus CE"
+#define Lproduct83        L"TI-83 Premium CE"
+#define Ldevice_version   L"255.255.255.65535"
 #define Lserial_number    L"0000000000000000"
 #define Lcharging_cfg     L"Charging"
 #define Lmtp_interface    L"MTP" /* magic string to aid detection */
 #define Lram_storage_desc L"RAM"
-#define Lram_volume_id    Lserial_number"R"
+#define Lram_volume_id    Lserial_number "R"
 #define Larc_storage_desc L"Archive"
-#define Larc_volume_id    Lserial_number"A"
+#define Larc_volume_id    Lserial_number "A"
 #define Lfactory_datetime L"20150101T000000"
 
 typedef enum string_id {
@@ -712,7 +717,8 @@ typedef struct mtp_device_info {
     mtp_byte_t manufacturer_length;
     wchar_t manufacturer[lengthof(Lmanufacturer)];
     mtp_byte_t model_length;
-    wchar_t model[lengthof(Lproduct)];
+    wchar_t model[lengthof(Lproduct) > lengthof(Lproduct83) ?
+                  lengthof(Lproduct) : lengthof(Lproduct83)];
     mtp_byte_t device_version_length;
     wchar_t device_version[lengthof(Ldevice_version)];
     mtp_byte_t serial_number_length;
@@ -819,6 +825,7 @@ DECLARE_CALLBACK(get_object);
 DECLARE_CALLBACK(send_object_info);
 DECLARE_CALLBACK(send_object_container);
 DECLARE_CALLBACK(send_object);
+DECLARE_CALLBACK(zlp_data_in);
 DECLARE_CALLBACK(final_data_in);
 DECLARE_CALLBACK(response);
 DECLARE_CALLBACK(event);
@@ -839,18 +846,12 @@ static usb_endpoint_t get_endpoint(
 static usb_error_t stall_data_endpoints(
         usb_endpoint_t endpoint) {
     printf("stalling data endpoints\n");
-#if 0
-    usb_error_t error;
-    error = usb_StallEndpoint(
+    usb_error_t error = usb_SetEndpointHalt(
             get_endpoint(endpoint, MTP_EP_DATA_IN));
     if (error == USB_SUCCESS)
-        error = usb_StallEndpoint(
+        error = usb_SetEndpointHalt(
                 get_endpoint(endpoint, MTP_EP_DATA_OUT));
     return error;
-#else
-    (void)endpoint;
-    return USB_ERROR_FAILED;
-#endif
 }
 
 static usb_error_t schedule_event(
@@ -955,33 +956,6 @@ static usb_error_t schedule_ok_response(
             params, param_count, global);
 }
 
-static usb_error_t schedule_data_in_response(
-        usb_endpoint_t endpoint,
-        const void *data,
-        size_t data_size,
-        mtp_global_t *global) {
-    usb_error_t error;
-    global->transaction.container.length.size =
-        sizeof(mtp_container_t) +
-        data_size;
-    global->transaction.container.type =
-        MTP_BT_DATA;
-    error = usb_ScheduleBulkTransfer(
-            endpoint = get_endpoint(
-                    endpoint, MTP_EP_DATA_IN),
-            &global->transaction,
-            sizeof(mtp_container_t),
-            NULL,
-            global);
-    if (error) return error;
-    return usb_ScheduleBulkTransfer(
-            endpoint,
-            (void *)data,
-            data_size,
-            final_data_in_complete,
-            global);
-}
-
 static usb_error_t schedule_data_in(
         usb_endpoint_t endpoint,
         size_t data_size,
@@ -1001,6 +975,27 @@ static usb_error_t schedule_data_in(
             global);
 }
 
+static usb_error_t schedule_data_in_response(
+        usb_endpoint_t endpoint,
+        const void *data,
+        size_t data_size,
+        mtp_global_t *global) {
+    usb_error_t error = schedule_data_in(
+            endpoint, data_size, NULL, global);
+    if (error == USB_SUCCESS)
+        error = usb_ScheduleBulkTransfer(
+            get_endpoint(endpoint,
+                         MTP_EP_DATA_IN),
+            (void *)data,
+            data_size,
+            data_size &&
+            !(data_size % MTP_MAX_BULK_PKT_SZ)
+            ? zlp_data_in_complete
+            : final_data_in_complete,
+            global);
+    return error;
+}
+
 static usb_error_t status_error(
         usb_transfer_status_t status) {
     printf("transfer status = %02X\n", status);
@@ -1056,21 +1051,19 @@ static uint16_t compute_checksum(
 }
 
 static void get_datetime(
-        wchar_t result[lengthof(Lfactory_datetime)]) {
+        datetime_t *result) {
     uint16_t year;
-    uint8_t month, day, hour, minute, second,
-        i = lengthof(Lfactory_datetime);
-    char string[lengthof(Lfactory_datetime)],
-        *pointer = string;
+    uint8_t month, day, hour, minute, second;
+    char string[lengthof(Lfactory_datetime)];
     boot_GetDate(&day, &month, &year);
     boot_GetTime(&second, &minute, &hour);
-    sprintf(string, "%04u%02u%02uT%02u%02u%02u",
-            year, month, day, hour, minute, second);
-    do {
-        *(char *)result = *pointer;
-        ++result;
-        ++pointer;
-    } while (--i);
+    int count =
+        snprintf(string, lengthof(string),
+                 "%04u%02u%02uT%02u%02u%02u",
+                 year, month, day, hour, minute, second);
+    result->length = count <= 0 ? 0 : count + 1;
+    for (mtp_byte_t i = 0; i != result->length; ++i)
+        result->string[i] = string[i];
 }
 
 static int delete_object(
@@ -1188,6 +1181,7 @@ static int send_object(
             version = entry->version;
             flag = entry->flag;
         }
+        (void)version;
         flag &= global->transaction.pending
             .send_object.mask;
         flag |= global->transaction.pending
@@ -1754,6 +1748,7 @@ DEFINE_CALLBACK(command) {
                 MTP_RSP_DEVICE_PROP_NOT_SUPPORTED,
                 global);
     case MTP_OPR_GET_DEVICE_PROP_VALUE:
+        MAX_PARAMS(1);
 #define GET_DEVICE_PROP_VALUE_RESPONSE(type, name, form) \
         if (global->transaction.payload.params[0] ==     \
                 MTP_DP_##name) {                         \
@@ -1769,6 +1764,7 @@ DEFINE_CALLBACK(command) {
                 MTP_RSP_DEVICE_PROP_NOT_SUPPORTED,
                 global);
     case MTP_OPR_SET_DEVICE_PROP_VALUE:
+        MAX_PARAMS(1);
         usb_ScheduleBulkTransfer(
                 endpoint,
                 &global->transaction.payload,
@@ -2144,6 +2140,18 @@ DEFINE_CALLBACK(send_object) {
             endpoint, response, NULL, 0, global);
 }
 
+DEFINE_CALLBACK(zlp_data_in) {
+    (void)transferred;
+    if (status != USB_TRANSFER_COMPLETED)
+        return status_error(status);
+    if (global->reset)
+        return schedule_command(endpoint, global);
+    return usb_ScheduleBulkTransfer(
+            endpoint, NULL, 0,
+            final_data_in_complete,
+            global);
+}
+
 DEFINE_CALLBACK(final_data_in) {
     (void)transferred;
     if (status != USB_TRANSFER_COMPLETED)
@@ -2190,7 +2198,7 @@ static usb_error_t usb_event(usb_event_t event,
               (USB_DEVICE_TO_HOST |
                USB_STANDARD_REQUEST |
                USB_RECIPIENT_DEVICE) &&
-            setup->bRequest == USB_GET_DESCRIPTOR &&
+            setup->bRequest == USB_GET_DESCRIPTOR_REQUEST &&
             setup->wValue == 0x03EE && !setup->wIndex) {
             DEFINE_STRING_DESCRIPTOR(const, os_specific);
             error = usb_ScheduleTransfer(
@@ -2263,10 +2271,19 @@ int main(void) {
     static mtp_global_t global;
     usb_error_t error;
     ui_Init();
-    printf("        TRANSFER v0.0.1b\n"
-           "       Connect USB to PC.\n"
-           "     Press [clear] to exit.\n"
-           "--------------------------------");
+#define CENTER(string)                    \
+    printf("%*s%.*s",                     \
+           (LCD_WIDTH / FONT_WIDTH +      \
+            charsof(string)) / 2,         \
+           string,                        \
+           charsof(string) %              \
+           (LCD_WIDTH / FONT_WIDTH) != 0, \
+           "\n");
+    CENTER("TRANSFER " VERSION);
+    CENTER("Connect USB to PC.");
+    CENTER("Press [clear] to exit.");
+    CENTER("--------------------------------");
+    ui_Lock();
     static mtp_device_info_t device_info = {
         .standard_version = 100, /* 1.00 */
         .mtp_vendor_extension_id = 6,
@@ -2282,7 +2299,11 @@ int main(void) {
             FOR_EACH_SUPP_OPR(LIST_SUPP_OPR)
         },
         .events_supported_length = lengthof(device_info.events_supported),
-        .events_supported = {},
+        .events_supported = {
+#define LIST_SUPP_EVT(name) \
+            MTP_EVT_##name,
+            FOR_EACH_SUPP_EVT(LIST_SUPP_EVT)
+        },
         .device_properties_length = lengthof(device_info.device_properties),
         .device_properties = {
 #define LIST_SUPP_DP(type, name, form) \
@@ -2303,14 +2324,8 @@ int main(void) {
         },
         .manufacturer_length = lengthof(device_info.manufacturer),
         .manufacturer = Lmanufacturer,
-        .model_length = lengthof(Lproduct),
-        .model = Lproduct,
-        .device_version_length = lengthof(device_info.device_version),
-        .device_version = Ldevice_version,
-        .serial_number_length = lengthof(device_info.serial_number),
-        .serial_number = Lserial_number Lserial_number,
     };
-#define DEFINE_STORAGE_INFO(name)                                \
+#define DEFINE_STORAGE_INFO(name)                            \
     static name##_mtp_storage_info_t name##_storage_info = { \
         .storage_type = MTP_ST_FIXED_RAM,                    \
         .filesystem_type = MTP_FT_GENERIC_FLAT,              \
@@ -2328,7 +2343,7 @@ int main(void) {
     FOR_EACH_STORAGE(DEFINE_STORAGE_INFO)
     /* Standard USB Descriptors */
     FOR_EACH_STRING_DESCRIPTOR(DEFINE_STRING_DESCRIPTOR)
-    DEFINE_STRING_DESCRIPTOR(const, product84)
+    DEFINE_STRING_DESCRIPTOR(const, product83)
     const static usb_string_descriptor_t *strings[] = {
 #define ADDRESSOF_STRING_DESCRIPTOR(const, name) &name,
         FOR_EACH_STRING_DESCRIPTOR(ADDRESSOF_STRING_DESCRIPTOR)
@@ -2411,7 +2426,7 @@ int main(void) {
         .bMaxPacketSize0 = 0x40u,
         .idVendor = 0x0451u,
         .idProduct = 0xE010u,
-        .bcdDevice = 0x260u, /* 2.60 */
+        .bcdDevice = 0x240u, /* 2.40 */
         .iManufacturer = Imanufacturer,
         .iProduct = Iproduct,
         .iSerialNumber = Iserial_number,
@@ -2425,34 +2440,68 @@ int main(void) {
         .strings = strings,
     };
     const system_info_t *info = os_GetSystemInfo();
+    for (mtp_byte_t i = 0; i != MTP_MAX_PENDING_EVENTS; ++i)
+        global.events[i].container.type = MTP_BT_EVENT;
+    mtp_byte_t *device_info_strings = &device_info.model_length;
+    if (info->hardwareType & 1) {
+        *device_info_strings++ =
+            lengthof(Lproduct83);
+        memcpy(device_info_strings,
+               Lproduct83,
+               sizeof(Lproduct83));
+        device_info_strings +=
+            sizeof(Lproduct83);
+        *(mtp_byte_t *)&device.bcdDevice =
+            0x60; /* 2.60 */
+        strings[Iproduct - 1] = &product83;
+        var_extensions[0x23][0] = 'p';
+    } else {
+        *device_info_strings++ =
+            lengthof(Lproduct);
+        memcpy(device_info_strings,
+               Lproduct,
+               sizeof(Lproduct));
+        device_info_strings +=
+            sizeof(Lproduct);
+    }
+    {
+        char version[lengthof(Ldevice_version)];
+        int count =
+            snprintf(version, lengthof(version),
+                     "%u.%u.%u.%04u",
+                     info->osMajorVersion,
+                     info->osMinorVersion,
+                     info->osRevisionVersion,
+                     info->osBuildVersion);
+        mtp_byte_t size = count <= 0 ? 0 : count + 1;
+        *device_info_strings++ = size;
+        for (mtp_byte_t i = 0; i != size; ++i) {
+            *device_info_strings++ = version[i];
+            device_info_strings++;
+        }
+    }
+    *device_info_strings++ =
+        lengthof(Lserial_number Lserial_number);
+    memcpy(device_info_strings,
+           Lserial_number,
+           sizeof(Lserial_number) -
+           sizeof(L'\0'));
+    device_info_strings +=
+        sizeof(Lserial_number Lserial_number);
+    global.device_info = &device_info;
+    global.device_info_size =
+        device_info_strings -
+        (mtp_byte_t *)&device_info;
+#define SET_STORAGE_INFO_PTR(name) \
+    global.name##_storage_info = &name##_storage_info;
+    FOR_EACH_STORAGE(SET_STORAGE_INFO_PTR)
     wchar_t *serial_numbers[] = {
         &serial_number.bString[2 * lengthof(info->calcid)],
-        &device_info.serial_number[4 * lengthof(info->calcid)],
+        (wchar_t *)device_info_strings - 1,
 #define LIST_STORAGE_INFO_SERIAL(name) \
         &name##_storage_info.volume_identifier[2 * lengthof(info->calcid)],
         FOR_EACH_STORAGE(LIST_STORAGE_INFO_SERIAL)
     };
-    for (mtp_byte_t i = 0; i != MTP_MAX_PENDING_EVENTS; ++i)
-        global.events[i].container.type = MTP_BT_EVENT;
-    if (info->hardwareType & 1)
-        global.device_info_size = sizeof(mtp_device_info_t);
-    else {
-        *(mtp_byte_t *)&device.bcdDevice = 0x40; /* 2.40 */
-        device_info.model_length = lengthof(Lproduct84);
-        memcpy(device_info.model, Lproduct84, sizeof(Lproduct84));
-        memmove(&device_info.model[lengthof(Lproduct84)],
-                &device_info.device_version_length,
-                sizeof(mtp_device_info_t) -
-                offsetof(mtp_device_info_t, device_version_length));
-        global.device_info_size = sizeof(mtp_device_info_t) -
-            sizeof(Lproduct) + sizeof(Lproduct84);
-        strings[Iproduct - 1] = &product84;
-        var_extensions[0x23][0] = 'e';
-    }
-    global.device_info = &device_info;
-#define SET_STORAGE_INFO_PTR(name) \
-    global.name##_storage_info = &name##_storage_info;
-    FOR_EACH_STORAGE(SET_STORAGE_INFO_PTR)
     for (mtp_byte_t i = 2 * lengthof(info->calcid); i; ) {
         mtp_byte_t nibble = info->calcid[--i >> 1];
         if (!(i & 1))

src/ui.c

@@ -8,9 +8,7 @@
 #include <string.h>
 #include <tice.h>
 
-#define STATIC_ROWS 4
-
-static uint8_t row, col, swap;
+static uint8_t static_rows, row, col, swap;
 #define buffer(n) (*(uint8_t (*)[4][LCD_WIDTH][LCD_HEIGHT >> 1])lcd_Ram)[(n) ^ swap]
 
 void ui_Init(void) {
@@ -31,6 +29,10 @@ void ui_Init(void) {
     *(volatile uint8_t *volatile *)&lcd_UpBase = &buffer(0)[0][0];
 }
 
+void ui_Lock(void) {
+    static_rows = row;
+}
+
 void ui_Cleanup(void) {
     boot_ClearVRAM();
     boot_TurnOn();
@@ -56,7 +58,7 @@ void outchar(char c) {
                sizeof(buffer(1)) - FONT_HEIGHT_BYTES);
         for (unsigned x = 0; x != LCD_WIDTH; ++x) {
             memcpy(&buffer(0)[x][0], &buffer(1)[x][0],
-                   FONT_HEIGHT_BYTES * STATIC_ROWS);
+                   FONT_HEIGHT_BYTES * static_rows);
             memset(&buffer(0)[x][((LCD_HEIGHT / FONT_HEIGHT - 1) *
                                   FONT_HEIGHT) >> 1], 0xFF, FONT_HEIGHT_BYTES);
         }

src/ui.h

@@ -2,6 +2,7 @@
 #define UI_H
 
 void ui_Init(void);
+void ui_Lock(void);
 void ui_Cleanup(void);
 
 #endif

src/var.asm

@@ -6,10 +6,9 @@
 	private	ti.DataSize
 	private	ti.DelVarArc
 	private	ti.EquObj
-	private	ti.flags
-	private	ti.GroupObj
 	private	ti.Get_Tok_Strng
 	private	ti.GroupObj
+	private	ti.GroupObj
 	private	ti.Mov9ToOP1
 	private	ti.OP1
 	private	ti.OP3
@@ -18,13 +17,19 @@
 	private	ti.ProgObj
 	private	ti.ProtProgObj
 	private	ti.PushErrorHandler
+	private	ti.flags
 	private	ti.tAns
+	private	ti.tExtTok
 	private	ti.tRecurn
 	private	ti.tVarLst
 	private	ti.tVarOut
 include 'ti84pceg.inc'
 
+	private ImageObj
+	private tVarImage1
 	private	varTypeMask
+ImageObj := $1A
+tVarImage1 := $50
 varTypeMask := $3F
 
 	private	DELETE_VAR_NOT_DELETED
@@ -124,11 +129,16 @@ _get_var_data_ptr:
 	ex	de,hl
 	bit	15,bc
 	ret	nz
-	ld	bc,9
-	add	hl,bc
-	ld	c,(hl)
-	add	hl,bc
-	inc	hl
+	ex	de,hl
+	call	ti.Sym_Prog_non_t_Lst
+	jq	z,.named
+	ld	c,2
+.named:
+	ex	de,hl
+	ld	de,10
+	add	hl,de
+	ld	e,c
+	add	hl,de
 	ret
 
 	section	.text
@@ -224,6 +234,11 @@ _arc_unarc_var:
 	ex	(sp),iy
 	push	de
 .enter:
+	ld	a,(de)
+	cp	a,'A'
+	ret	c
+	cp	a,ti.tAns
+	ret	z
 	ld	hl,.return
 	call	ti.PushErrorHandler
 	lea	hl,iy
@@ -255,6 +270,8 @@ _get_var_file_name:
 	sub	a,(ti.AppVarObj-ti.ProtProgObj-1) shl 1
 	sub	a,(ti.GroupObj-ti.AppVarObj+1) shl 1
 	jq	c,.named
+	sub	a,(ImageObj-ti.GroupObj-1) shl 1
+	jq	z,.image
 	ld	a,(de)
 	cp	a,'.'
 	jq	z,.namedEnter
@@ -331,6 +348,12 @@ _get_var_file_name:
 	ld	a,13
 	sub	a,c
 	ret
+.image:
+	inc	de
+	ld	a,(de)
+	ld	de,_image_name+1
+	add	a,tVarImage1
+	ld	(de),a
 .list:
 	dec	de
 .token:
@@ -344,6 +367,10 @@ _get_var_file_name:
 	jq	.named
 
 	section	.data
+	public	_image_name
+_image_name:
+	db	ti.tExtTok,tVarImage1
+
 	public	_var_extensions
 _var_extensions:
 	db	"xnxlxmxyxsxpxpci"

src/var.h

@@ -69,7 +69,7 @@ uint8_t create_var(const var_name_t *var_name,
                    const void *data, size_t size);
 uint8_t arc_unarc_var(const var_name_t *var_name);
 uint8_t get_var_file_name(const var_name_t *var_name,
-                          wchar_t file_name[13]);
+                          wchar_t file_name[MAX_FILE_NAME_LENGTH]);
     
 #ifdef __cplusplus
 }