New plugin: frotz, a Z-machine interpreter, for playing interactive fiction.

The interpreter more or less passes all the tests in the z-machine test suite.
It should build for every target except Archos (for which it is disabled).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24267 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 205 insertions, 0 deletions

diff --git a/apps/plugins/frotz/main.c b/apps/plugins/frotz/main.c
new file mode 100644
index 0000000000..22c021bfd1
--- /dev/null
+++ b/apps/plugins/frotz/main.c
@@ -0,0 +1,205 @@
+/* main.c - Frotz V2.40 main function
+ *	Copyright (c) 1995-1997 Stefan Jokisch
+ *
+ * Changes for Rockbox copyright 2009 Torne Wuff
+ *
+ * This file is part of Frotz.
+ *
+ * Frotz is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Frotz is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+/*
+ * This is an interpreter for Infocom V1 to V6 games. It also supports
+ * the recently defined V7 and V8 games. Please report bugs to
+ *
+ *    s.jokisch@avu.de
+ *
+ */
+
+#include "frotz.h"
+
+#ifndef MSDOS_16BIT
+#define cdecl
+#endif
+
+extern void interpret (void);
+extern void init_memory (void);
+extern void init_undo (void);
+extern void reset_memory (void);
+extern void init_buffer (void);
+extern void init_sound (void);
+extern void init_process (void);
+extern void script_close (void);
+extern void record_close (void);
+extern void replay_close (void);
+
+/* Story file name, id number and size */
+
+const char *story_name = 0;
+
+enum story story_id = UNKNOWN;
+long story_size = 0;
+
+/* Story file header data */
+
+zbyte h_version = 0;
+zbyte h_config = 0;
+zword h_release = 0;
+zword h_resident_size = 0;
+zword h_start_pc = 0;
+zword h_dictionary = 0;
+zword h_objects = 0;
+zword h_globals = 0;
+zword h_dynamic_size = 0;
+zword h_flags = 0;
+zbyte h_serial[6] = { 0, 0, 0, 0, 0, 0 };
+zword h_abbreviations = 0;
+zword h_file_size = 0;
+zword h_checksum = 0;
+zbyte h_interpreter_number = 0;
+zbyte h_interpreter_version = 0;
+zbyte h_screen_rows = 0;
+zbyte h_screen_cols = 0;
+zword h_screen_width = 0;
+zword h_screen_height = 0;
+zbyte h_font_height = 1;
+zbyte h_font_width = 1;
+zword h_functions_offset = 0;
+zword h_strings_offset = 0;
+zbyte h_default_background = 0;
+zbyte h_default_foreground = 0;
+zword h_terminating_keys = 0;
+zword h_line_width = 0;
+zbyte h_standard_high = 1;
+zbyte h_standard_low = 0;
+zword h_alphabet = 0;
+zword h_extension_table = 0;
+zbyte h_user_name[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+
+zword hx_table_size = 0;
+zword hx_mouse_x = 0;
+zword hx_mouse_y = 0;
+zword hx_unicode_table = 0;
+
+/* Stack data */
+
+zword stack[STACK_SIZE];
+zword *sp = 0;
+zword *fp = 0;
+zword frame_count = 0;
+
+/* IO streams */
+
+bool ostream_screen = TRUE;
+bool ostream_script = FALSE;
+bool ostream_memory = FALSE;
+bool ostream_record = FALSE;
+bool istream_replay = FALSE;
+bool message = FALSE;
+
+/* Current window and mouse data */
+
+int cwin = 0;
+int mwin = 0;
+
+int mouse_y = 0;
+int mouse_x = 0;
+
+/* Window attributes */
+
+bool enable_wrapping = FALSE;
+bool enable_scripting = FALSE;
+bool enable_scrolling = FALSE;
+bool enable_buffering = FALSE;
+
+/* User options */
+
+/*
+int option_attribute_assignment = 0;
+int option_attribute_testing = 0;
+int option_context_lines = 0;
+int option_object_locating = 0;
+int option_object_movement = 0;
+int option_left_margin = 0;
+int option_right_margin = 0;
+int option_ignore_errors = 0;
+int option_piracy = 0;
+int option_undo_slots = MAX_UNDO_SLOTS;
+int option_expand_abbreviations = 0;
+int option_script_cols = 80;
+int option_save_quetzal = 1;
+*/
+
+int option_sound = 1;
+char *option_zcode_path;
+
+
+/*
+ * z_piracy, branch if the story file is a legal copy.
+ *
+ *	no zargs used
+ *
+ */
+
+void z_piracy (void)
+{
+
+    branch (!f_setup.piracy);
+
+}/* z_piracy */
+
+/*
+ * main
+ *
+ * Prepare and run the game.
+ *
+ */
+
+int cdecl frotz_main (void)
+{
+
+    os_init_setup ();
+
+    init_buffer ();
+
+    init_err ();
+
+    init_memory ();
+
+    init_process ();
+
+    init_sound ();
+
+    os_init_screen ();
+
+    init_undo ();
+
+    z_restart ();
+
+    interpret ();
+
+    script_close ();
+
+    record_close ();
+
+    replay_close ();
+
+    reset_memory ();
+
+    os_reset_screen ();
+
+    return 0;
+
+}/* main */