*0x8156 - int   read_byte(int address)
*0x8157 - int   read_short(int address)
*0x8158 - int   read_int(int address)
*0x8159 - char* read_string(int address)

*0x81cf - void  write_byte(int address, int value)
*0x81d0 - void  write_short(int address, int value)
*0x81d1 - void  write_int(int address, int value)
*0x821b - void  write_string(int address, char* value)

*0x81d2 - void  call_offset_v0(int address)
*0x81d3 - void  call_offset_v1(int address, int arg1)
*0x81d4 - void  call_offset_v2(int address, int arg1, int arg2)
*0x81d5 - void  call_offset_v3(int address, int arg1, int arg2, int arg3)
*0x81d6 - void  call_offset_v4(int address, int arg1, int arg2, int arg3, int arg4)
*0x81d7 - int   call_offset_r0(int address)
*0x81d8 - int   call_offset_r1(int address, int arg1)
*0x81d9 - int   call_offset_r2(int address, int arg1, int arg2)
*0x81da - int   call_offset_r3(int address, int arg1, int arg2, int arg3)
*0x81db - int   call_offset_r4(int address, int arg1, int arg2, int arg3, int arg4)

0x815a - void set_pc_base_stat(int StatID, int value)
0x815b - void set_pc_extra_stat(int StatID, int value)
0x815c - int  get_pc_base_stat(int StatID)
0x815d - int  get_pc_extra_stat(int StatID)

0x815e - void set_critter_base_stat(CritterPtr, int StatID, int value)
0x815f - void set_critter_extra_stat(CritterPtr, int StatID, int value)
0x8160 - int  get_critter_base_stat(CritterPtr, int StatID)
0x8161 - int  get_critter_extra_stat(CritterPtr, int StatID)
0x8242 - void set_critter_skill_points(int critter, int skill, int value)
0x8243 - int  get_critter_skill_points(int critter, int skill)
0x8244 - void set_available_skill_points(int value)
0x8245 - int  get_available_skill_points()
0x8246 - void mod_skill_points_per_level(int value)

0x81b4 - void set_stat_max(int stat, int value)
0x81b5 - void set_stat_min(int stat, int value)
0x81b7 - void set_pc_stat_max(int stat, int value)
0x81b8 - void set_pc_stat_min(int stat, int value)
0x81b9 - void set_npc_stat_max(int stat, int value)
0x81ba - void set_npc_stat_min(int stat, int value)

0x816b - int  input_funcs_available()
0x816c - int  key_pressed(int dxScancode)
0x8162 - void tap_key(int dxScancode)
0x821c - int  get_mouse_x()
0x821d - int  get_mouse_y()
0x821e - int  get_mouse_buttons()
0x821f - int  get_window_under_mouse()

0x8163 - int get_year()

0x8164 - bool game_loaded()

0x8165 - bool graphics_funcs_available()
0x8166 - int  load_shader(char* path)
0x8167 - void free_shader(int ID)
0x8168 - void activate_shader(int ID)
0x8169 - void deactivate_shader(int ID)
0x816d - void set_shader_int(int ID, char* param, int value)
0x816e - void set_shader_float(int ID, char* param, float value)
0x816f - void set_shader_vector(int ID, char* param, float f1, float f2, float f3, float f4)
0x81ad - int get_shader_version()
0x81ae - void set_shader_mode(int mode)
0x81b0 - void force_graphics_refresh(bool enabled)
0x81b1 - int get_shader_texture(int ID, int texture)
0x81b2 - void set_shader_texture(int ID, char* param, int texID)

0x816a - void set_global_script_repeat(int frames)
0x819b - void set_global_script_type(int type)
0x819c - int available_global_script_types()

0x8170 - bool in_world_map()

0x8171 - void force_encounter(int map)
0x8229 - void force_encounter_with_flags(int map, int flags)
0x822a - void set_map_time_multi(float multi)

0x8172 - void set_world_map_pos(int x, int y)
0x8173 - int get_world_map_x_pos()
0x8174 - int get_world_map_y_pos()

0x8175 - void set_dm_model(char* name)
0x8176 - void set_df_model(char* name)
0x8177 - void set_movie_path(char* filename, int movieid)

0x8178 - void set_perk_image(int perkID, int value)
0x8179 - void set_perk_ranks(int perkID, int value)
0x817a - void set_perk_level(int perkID, int value)
0x817b - void set_perk_stat(int perkID, int value)
0x817c - void set_perk_stat_mag(int perkID, int value)
0x817d - void set_perk_skill1(int perkID, int value)
0x817e - void set_perk_skill1_mag(int perkID, int value)
0x817f - void set_perk_type(int perkID, int value)
0x8180 - void set_perk_skill2(int perkID, int value)
0x8181 - void set_perk_skill2_mag(int perkID, int value)
0x8182 - void set_perk_str(int perkID, int value)
0x8183 - void set_perk_per(int perkID, int value)
0x8184 - void set_perk_end(int perkID, int value)
0x8185 - void set_perk_chr(int perkID, int value)
0x8196 - void set_perk_int(int perkID, int value)
0x8187 - void set_perk_agl(int perkID, int value)
0x8188 - void set_perk_lck(int perkID, int value)
0x8189 - void set_perk_name(int perkID, char* value)
0x818a - void set_perk_desc(int perkID, char* value)
0x8247 - void set_perk_freq(int value)

0x818b - void set_pipboy_available(int available)

0x818c - int get_kill_counter(int critterType)
0x818d - void mod_kill_counter(int critterType, int amount)

0x818e - int get_perk_owed()
0x818f - void set_perk_owed(int value)
0x8190 - int get_perk_available(int perk)

0x8191 - int get_critter_current_ap(CritterPtr)
0x8192 - void set_critter_current_ap(CritterPtr, int ap)

0x8193 - int  active_hand()
0x8194 - void toggle_active_hand()

0x8195 - void set_weapon_knockback(WeaponPtr, int type, float value)
0x8196 - void set_target_knockback(CritterPtr, int type, float value)
0x8197 - void set_attacker_knockback(CritterPtr, int type, float value)
0x8198 - void remove_weapon_knockback(WeaponPtr)
0x8199 - void remove_target_knockback(CritterPtr)
0x819a - void remove_attacker_knockback(CritterPtr)

0x819d - void  set_sfall_global(string/int varname, int/float value)
0x819e - int   get_sfall_global_int(string/int varname)
0x819f - float get_sfall_global_float(string/int varname)
0x822d - int   create_array(int elementcount, int elementsize)
0x822e - void  set_array(int array, any element, any value)
0x822f - any   get_array(int array, any element)
0x8230 - void  free_array(int array)
0x8231 - int   len_array(int array)
0x8232 - void  resize_array(int array, int newelementcount)
0x8233 - int   temp_array(int elementcount, int elementsize)
0x8234 - void  fix_array(int array)
0x8239 - int   scan_array(int array, int/float var)
0x8256 - int   array_key(int array, int index)
0x8257 - int   arrayexpr(any key, any value)
0x8254 - void  save_array(any key, int array)
0x8255 - int   load_array(any key)

0x81a0 - void set_pickpocket_max(int percentage)
0x81a1 - void set_hit_chance_max(int percentage)
0x81a2 - void set_skill_max(int value)
0x81aa - void set_xp_mod(int percentage)
0x81ab - void set_perk_level_mod(int levels)

0x81c5 - void set_critter_hit_chance_mod(CritterPtr, int max, int mod)
0x81c6 - void set_base_hit_chance_mod(int max, int mod)
0x81c7 - void set_critter_skill_mod(CritterPtr, int max)
0x81c8 - void set_base_skill_mod(int max)
0x81c9 - void set_critter_pickpocket_mod(CritterPtr, int max, int mod)
0x81ca - void set_base_pickpocket_mod(int max, int mod)

0x81a3 - int  eax_available()
0x81a4 - void set_eax_environment(int environment)

0x81a5 - void inc_npc_level(char* npc)
0x8241 - int  get_npc_level(char* npc)

0x81a6 - int get_viewport_x()
0x81a7 - int get_viewport_y()
0x81a8 - void set_viewport_x(int view_x)
0x81a9 - void set_viewport_y(int view_y)

0x81ac - int   get_ini_setting(char* setting)
0x81eb - char* get_ini_string(char* setting)

0x81af - int get_game_mode()

0x81b3 - int get_uptime()

0x81b6 - void set_car_current_town(int town)

0x81bb - void set_fake_perk(char* name, int level, int image, char* desc)
0x81bc - void set_fake_trait(char* name, int active, int image, char* desc)
0x81bd - void set_selectable_perk(char* name, int active, int image, char* desc)
0x81be - void set_perkbox_title(char* title)
0x81bf - void hide_real_perks()
0x81c0 - void show_real_perks()
0x81c1 - int has_fake_perk(char* name)
0x81c2 - int has_fake_trait(char* name)
0x81c3 - void perk_add_mode(int type)
0x81c4 - void clear_selectable_perks()
0x8225 - void remove_trait(int traitID)

0x81cb - void set_pyromaniac_mod(int bonus)
0x81cc - void apply_heaveho_fix
0x81cd - void set_swiftlearner_mod(int bonus)
0x81ce - void set_hp_per_level_mod(int mod)

0x81dc - void show_iface_tag(int tag)
0x81dd - void hide_iface_tag(int tag)
0x81de - int  is_iface_tag_active(int tag)

0x81df - int  get_bodypart_hit_modifier(int bodypart)
0x81e0 - void set_bodypart_hit_modifier(int bodypart, int value)

0x81e1 - void set_critical_table(int crittertype, int bodypart, int level, int valuetype, int value)
0x81e2 - int  get_critical_table(int crittertype, int bodypart, int level, int valuetype)
0x81e3 - void reset_critical_table(int crittertype, int bodypart, int level, int valuetype)

0x81e4 - int   get_sfall_arg()
0x823d - void  set_sfall_arg(int arg, int value)
0x823c - array get_sfall_args()
0x823d - void  set_sfall_arg(int arg, int value)
0x81e5 - void  set_sfall_return(int value)
0x81ea - int   init_hook()

0x81e6 - void set_unspent_ap_bonus(int multiplier)
0x81e7 - int  get_unspent_ap_bonus()
0x81e8 - void set_unspent_ap_perk_bonus(int multiplier)
0x81e9 - int  get_unspent_ap_perk_bonus()

0x81ec - float sqrt(float)
0x81ed - float abs(float)
0x81ee - float sin(float)
0x81ef - float cos(float)
0x81f0 - float tan(float)
0x81f1 - float arctan(float x, float y)
0x8263 - ^ operator (exponentiation)
0x8264 - float log(float)
0x8265 - float exponent(float)
0x8266 - int ceil(float)
0x8267 - int round(float)

0x81f2 - void set_palette(char* path)

0x81f3 - void remove_script(objptr)
0x81f4 - void set_script(objptr, int scriptid)
0x81f5 - int get_script(objptr)

0x81f6 - int nb_create_char()

0x81f7 - int   fs_create(string path, int size)
0x81f8 - int   fs_copy(string path, string source)
0x81f9 - int   fs_find(string path)
0x81fa - void  fs_write_byte(int id, int data)
0x81fb - void  fs_write_short(int id, int data)
0x81fc - void  fs_write_int(int id, int data)
0x81fd - void  fs_write_float(int id, int data)
0x81fe - void  fs_write_string(int id, string data)
0x8208 - void  fs_write_bstring(int id, string data)
0x8209 - int   fs_read_byte(int id)
0x820a - int   fs_read_short(int id)
0x820b - int   fs_read_int(int id)
0x820c - float fs_read_float(int id)
0x81ff - void  fs_delete(int id)
0x8200 - int   fs_size(int id)
0x8201 - int   fs_pos(int id)
0x8202 - void  fs_seek(int id, int pos)
0x8203 - void  fs_resize(int id, int size)

0x8204 - int  get_proto_data(objptr, int offset)
0x8205 - void set_proto_data(objptr, int offset, int value)

0x8206 - void set_self(objptr)
0x8207 - void register_hook(int hook)

0x820d - int   list_begin(int type)
0x820e - int   list_next(int listid)
0x820f - void  list_end(int listid)
0x8236 - array list_as_array(int type)

0x8210 - int sfall_ver_major()
0x8211 - int sfall_ver_minor()
0x8212 - int sfall_ver_build()

0x8213 - void hero_select_win(int)
0x8214 - void set_hero_race(int style)
0x8215 - void set_hero_style(int style)

0x8216 - void set_critter_burst_disable(objptr critter, int disable)

0x8217 - int  get_weapon_ammo_pid(objptr weapon)
0x8218 - void set_weapon_ammo_pid(objptr weapon, int pid)
0x8219 - int  get_weapon_ammo_count(objptr weapon)
0x821a - void set_weapon_ammo_count(objptr weapon, int count)

0x8220 - int get_screen_width()
0x8221 - int get_screen_height()

0x8222 - void stop_game()
0x8223 - void resume_game()
0x8224 - void create_message_window(char* message)

0x8226 - int get_light_level()

0x8227 - void refresh_pc_art

0x8228 - int get_attack_type

0x822b - int  play_sfall_sound(char* file, int loop)
0x822c - void stop_sfall_sound(int ptr)

0x8235 - array string_split(char* string, char* split)
0x8237 - int   atoi(char* string)
0x8238 - float atof(char* string)
0x824e - char* substr(char* string, int start, int length)
0x824f - int   strlen(char* string)
0x8250 - char* sprintf(char* format, any value)
0x8251 - int   charcode(char* string)
0x8253 - int   typeof(any value)

0x823a - int get_tile_fid(int tile)

0x823b - int modified_ini

0x823e - void force_aimed_shots(int pid)
0x823f - void disable_aimed_shots(int pid)

0x8240 - void mark_movie_played(int id)

0x8248 - objptr get_last_target(objptr critter)
0x8249 - objptr get_last_attacker(objptr critter)

0x824b - int tile_under_cursor
0x824c - int gdialog_get_barter_mod
0x824d - void set_inven_ap_cost

0x825c - void reg_anim_combat_check(int enable)
0x825a - void reg_anim_destroy(objptr object)
0x825b - void reg_anim_animate_and_hide(objptr object, int animID, int delay)
0x825d - void reg_anim_light(objptr object, int radius, int delay)
0x825e - void reg_anim_change_fid(objptr object, int FID, int delay)
0x825f - void reg_anim_take_out(objptr object, int holdFrameID, int delay)
0x8260 - void reg_anim_turn_towards(objptr object, int tile/targetObj, int delay)

0x8261 - int metarule2_explosions(objptr object)

0x8262 - void register_hook_proc(int hook, procedure proc)

0x8266 - char* message_str_game(int fileId, int messageId)
0x8267 - int sneak_success
0x8268 - int tile_light(int elevation, int tileNum)
0x8269 - ObjectPtr obj_blocking_line(ObjectPtr objFrom, int tileTo, int blockingType)
0x826a - ObjectPtr obj_blocking_tile(int tileNum, int elevation, int blockingType)
0x826b - array tile_get_objs(int tileNum, int elevation)
0x826c - array party_member_list(int includeHidden)
0x826d - array path_find_to(ObjectPtr objFrom, int tileTo, int blockingType)
0x826e - ObjectPtr create_spatial(int scriptID, int tile, int elevation, int radius)
0x826f - int art_exists(int artFID)
0x8270 - int obj_is_carrying_obj(ObjectPtr invenObj, ObjectPtr itemObj)

* These functions require AllowUnsafeScripting to be enabled in ddraw.ini