+/* This array defines how to read value for each register. */
+static struct regwin_infos_t regwin_infos[DATA_ROWS] = {
+ {
+ "PC",
+ HEX_DIGITS_4,
+ regwin_read_pc, regwin_write_pc,
+ 0, /* Dummy */
+ },
+ {
+ "SP",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _SP_,
+ },
+ {
+ "A",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _ACC_,
+ },
+ {
+ "B",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _B_,
+ },
+ {
+ "DPTR",
+ HEX_DIGITS_4,
+ NULL, NULL,
+ _DPL_,
+ },
+ {
+ "PSW",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _PSW_,
+ },
+ {
+ "P0",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _P0_,
+ },
+ {
+ "P1",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _P1_,
+ },
+ {
+ "P2",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _P2_,
+ },
+ {
+ "P3",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _P3_,
+ },
+ {
+ "TCON",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _TCON_,
+ },
+ {
+ "TMOD",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _TMOD_,
+ },
+ {
+ "TIMER0",
+ HEX_DIGITS_4,
+ regwin_read_timer, regwin_write_timer,
+ _TL0_,
+ },
+ {
+ "TIMER1",
+ HEX_DIGITS_4,
+ regwin_read_timer, regwin_write_timer,
+ _TL1_,
+ },
+ {
+ "SCON",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _SCON_,
+ },
+ {
+ "IE",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _IE_,
+ },
+ {
+ "IP",
+ HEX_DIGITS_2,
+ NULL, NULL,
+ _IP_,
+ },
+ {
+ "BANK",
+ HEX_DIGITS_2,
+ regwin_read_bank, regwin_write_bank,
+ 0, /* Dummy */
+ },
+ /* R0-R7 Registers in current Bank */
+ {
+ "R0",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R0_,
+ },
+ {
+ "R1",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R1_,
+ },
+ {
+ "R2",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R2_,
+ },
+ {
+ "R3",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R3_,
+ },
+ {
+ "R4",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R4_,
+ },
+ {
+ "R5",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R5_,
+ },
+ {
+ "R6",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R6_,
+ },
+ {
+ "R7",
+ HEX_DIGITS_2,
+ regwin_read_rx, regwin_write_rx,
+ _R7_,
+ },
+};
+
+/* Creating a model */
+static GtkListStore *
+regwin_init_store(void)
+{
+ GtkTreeIter iter;
+ int row;
+ int col;
+ GtkListStore *store;
+ GType col_types[N_COLUMNS];
+
+ /* No need for static array, all our columns are of the same type. */
+ for (col = 0; col < N_COLUMNS; col++)
+ col_types[col] = G_TYPE_STRING;
+
+ store = gtk_list_store_newv(N_COLUMNS, col_types);
+
+ /* Add rows. */
+ for (row = 0; row < DATA_ROWS; row++)
+ gtk_list_store_append(store, &iter);
+
+ return store;
+}
+
+static int
+regwin_find_row(const char *regname)
+{
+ int row;
+
+ for (row = 0; row < DATA_ROWS; row++) {
+ if (strcmp(regwin_infos[row].name, regname) == 0)
+ return row;
+ }
+
+ return -1; /* Programming error. */
+}
+
+static void
+regwin_cell_edited(GtkCellRendererText *cell, gchar *path_string,
+ gchar *new_str, gpointer model)
+{
+ GtkTreeIter iter;
+ int old;
+ int new;
+ char *str;
+ int row;
+
+ if (!model) {
+ g_error("Unable to get model from cell renderer");
+ }
+
+ /* Get the iterator */
+ gtk_tree_model_get_iter_from_string(model, &iter, path_string);
+
+ /* Get register name. */
+ gtk_tree_model_get(model, &iter, COL_NAME, &str, -1);
+
+ log_info("Register: %s", str);
+ row = regwin_find_row(str);
+ log_info(" row = %d", row);
+
+ /* Read current (old) value. */
+ gtk_tree_model_get(model, &iter, COL_VAL, &str, -1);
+
+ old = asciihex2int(str);
+
+ if (regwin_infos[row].w == 2)
+ log_info(" old value: $%02X", old);
+ else if (regwin_infos[row].w == 4)
+ log_info(" old value: $%04X", old);
+
+ new = asciihex2int(new_str);
+
+ if (regwin_infos[row].w == 2) {
+ if ((new < 0) || (new > 0xFF)) {
+ log_info(" new value: out of range");
+ new = old; /* Put back old value... */
+ } else {
+ log_info(" new value: $%02X", new);
+ }
+ } else if (regwin_infos[row].w == 4) {
+ if ((new < 0) || (new > 0xFFFF)) {
+ log_info(" new value: out of range");
+ new = old; /* Put back old value... */
+ } else {
+ log_info(" new value: $%04X", new);
+ }
+ }
+
+ /* Convert new value to text. */
+ int2asciihex(new, str, regwin_infos[row].w);
+
+ /* Store new value in emulator register. */
+ if (regwin_infos[row].write_func == NULL) {
+ /*
+ * Write register value using generic 8 or 16 bits write
+ * function, depending on width.
+ */
+ regwin_write(regwin_infos[row].param, new, regwin_infos[row].w);
+ } else {
+ /* Write register value using custom function pointer. */
+ regwin_infos[row].write_func(regwin_infos[row].param, new);
+ }
+
+ /* Store new value in gtk model. */
+ gtk_list_store_set(GTK_LIST_STORE(model), &iter, COL_VAL, str, -1);
+
+ /*
+ * Make sure to update all windows.
+ * For example, R0-R7 values depends on internal memory values.
+ */
+ emugtk_UpdateDisplay();
+};
+
+static void
+regwin_init_columns(void)
+{
+ GtkCellRenderer *renderer;
+ GtkTreeViewColumn *column;
+
+ /* Columns and cell renderers */
+ renderer = gtk_cell_renderer_text_new();
+
+ /* Add Register column */
+ column = gtk_tree_view_column_new_with_attributes(
+ "Name", renderer, "text", COL_NAME, NULL);
+ gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(reglist), column);
+
+ /* Add Value column */
+
+ /* Create new renderer for value column (editable). */
+ renderer = gtk_cell_renderer_text_new();
+
+ /* Allow edition, align to right side. */
+ g_object_set(renderer, "editable", TRUE, "xalign", 1.0, NULL);
+
+ g_signal_connect(renderer, "edited",
+ G_CALLBACK(regwin_cell_edited),
+ gtk_tree_view_get_model(GTK_TREE_VIEW(reglist)));
+
+ column = gtk_tree_view_column_new_with_attributes(
+ "Value", renderer, "text", COL_VAL, NULL);
+ gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
+ gtk_tree_view_append_column(GTK_TREE_VIEW(reglist), column);
+}
+
+GtkWidget *
+regwin_init(void)
+{
+ GtkWidget *frame;
+ GtkWidget *scrollwin;
+ GtkListStore *store;
+
+ frame = gtk_frame_new("Registers");
+
+ scrollwin = gtk_scrolled_window_new(NULL, NULL);
+ gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrollwin),
+ GTK_SHADOW_ETCHED_OUT);
+
+ /* Automatically add scrollbars when necessary. */
+ gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrollwin),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+
+ gtk_container_add(GTK_CONTAINER(frame), scrollwin);
+
+ /* Creating a model */
+ store = regwin_init_store();
+
+ /* Creating the view component */
+ reglist = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store));
+ gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(reglist), TRUE);
+ gtk_container_add(GTK_CONTAINER(scrollwin), reglist);
+
+ regwin_init_columns();
+
+ /*
+ * The tree view has acquired its own reference to the model, so we can
+ * drop ours. That way the model will be freed automatically when the
+ * tree view is destroyed.
+ */
+ g_object_unref(store);
+
+ return frame;
+}