Ultima 4 File Structures
========================
$Id: FileFormats.txt 2291 2004-11-28 14:18:57Z mwinterrowd $
Please send additions, corrections and feedback to
<andrewtaylor@users.sourceforge.net>!
SHAPES.EGA
----------
This contains the bitmaps for each tile. Each tile is 16x16 pixels,
and each byte represents two pixels. In other words, the first 8
bytes represent the 16 pixels on the first row of the first tile.
offset len notes
0x0 128 tile 0
0x80 128 tile 1
0x100 128 tile 2
...
0x7F80 128 tile 255
CHARSET.EGA
-----------
This contains the bitmaps for each character in the font. Each
character is 8x8 pixels, and each byte represents two pixels. In
other words, the first 4 bytes represent the 8 pixels on the first row
of the first character.
The order is the standard ASCII mapping; 'A' is character 65, 'z' is
character 122. The lowest 32 characters have the following glyphs:
0 - Ankh
1 - Symbol for horn effect
2 - Brick wall 1
3 - Brick wall 2
4 - Updown arrow
5 - Down arrow
6 - Up arrow
7 - Partial ankh
8 - Filled circle
9 - Copyright
10 - Registered trademark
11 - Male symbol
12 - Female symbol
13 - Border bar
14 - Hollow square
15 -
16 - Border endpiece (right)
17 - Border endpiece (left)
18 -
19 - Ellipsis
20 - Moon phase 0
21 - Moon phase 1
22 - Moon phase 2
23 - Moon phase 3
24 - Moon phase 4
25 - Moon phase 5
26 - Moon phase 6
27 - Moon phase 7
28 - Cursor image 1
29 - Cursor image 2
30 - Cursor image 3
31 - Cursor image 4
offset len notes
0x0 32 character 0
0x20 32 character 1
0x40 32 character 2
...
0x1FC0 32 character 255
.EGA files (RLE encoded)
------------------------
The following .EGA files are RLE encoded: START.EGA, KEY7.EGA,
RUNE_x.EGA (where x is between 0 and 5), STONCRCL.EGA, HONESTY.EGA,
COMPASSN.EGA, VALOR.EGA, JUSTICE.EGA, SACRIFIC.EGA, HONOR.EGA,
SPIRIT.EGA, HUMILITY.EGA, TRUTH.EGA, LOVE.EGA, and COURAGE.EGA. Each
of these files represents a 16 color 320x200 bitmap. Each pixel is
encoded in 4 bits, like SHAPES.EGA and CHARSET.EGA. However, runs of
identical *bytes* (not pixels) are encoded with a special run
indicator value (0x02) followed by a one byte count and a one byte
value. This allows a single run of up to 255 bytes (510 pixels) to be
represented as three bytes. For example, the byte values "28 28 28
28" could be represented as "02 04 28". If the value 0x02 needs to be
represented, it *must* be encoded in a run ("02 01 02").
file purpose
START.EGA the basic game borders
KEY7.EGA shown when the key is used
RUNE_0.EGA vision shown after meditating on valor
RUNE_1.EGA vision shown after meditating on honesty, justice, and honor
RUNE_2.EGA vision shown after meditating on compassion and sacrifice
RUNE_3.EGA vision shown after meditating on spirituality
RUNE_4.EGA vision shown after meditating on humility
RUNE_5.EGA
STONCRCL.EGA shown when game completed
HONESTY.EGA shown during questioning in abyss
COMPASSN.EGA shown during questioning in abyss
VALOR.EGA shown during questioning in abyss
JUSTICE.EGA shown during questioning in abyss
SACRIFIC.EGA shown during questioning in abyss
HONOR.EGA shown during questioning in abyss
SPIRIT.EGA shown during questioning in abyss
HUMILITY.EGA shown during questioning in abyss
TRUTH.EGA shown during questioning in abyss
LOVE.EGA shown during questioning in abyss
COURAGE.EGA shown during questioning in abyss
.EGA files (LZW encoded)
------------------------
The remaining .EGA files are LZW encoded: ABACUS.EGA, ANIMATE.EGA,
GYPSY.EGA, INSIDE.EGA, OUTSIDE.EGA, PORTAL.EGA, TREE.EGA, WAGON.EGA,
HONCOM.EGA, SACHONOR.EGA, SPIRHUM.EGA, VALJUS.EGA, and TITLE.EGA.
Also, the file SHAPES.EGZ is a LZW compressed version of SHAPES.EGA.
Like the RLE encoded files, each of these files represents a 16 color
320x200 bitmap. LZW encoded files only seem to be used in the
introduction sequence (title.exe); the images used by avatar.exe are
RLE encoded instead. (Description of LZW algorithm to go here).
file purpose
TITLE.EGA the background for the inital screen, including the large Ultima IV and
the border for the map/menu
ANIMATE.EGA the frames for the little critters in the upper corners of the intro
screen
TREE.EGA initial graphic for character creation sequence (has animated moongate)
PORTAL.EGA closeup of the moongate
OUTSIDE.EGA the faire from outside
INSIDE.EGA inside the faire
WAGON.EGA the gyspy's wagon
GYPSY.EGA the gypsy herself
ABACUS.EGA the abacus that serves as the background while the questions are asked
HONCOM.EGA the cards for honor and compassion
VALJUS.EGA the cards for valor and justice
SACHONOR.EGA the cards for sacrifice and honor
SPIRHUM.EGA the cards for spirituality and humility
WORLD.MAP
---------
This is the map of Britannia. It is 256x256 tiles in total, broken up
into 64 32x32 chunks. The first chunk is in the top left corner, the
next just below, and so on, until the last in the bottom right corner.
Each tile is stored as a byte that maps to the tiles in SHAPES.EGA.
The "chunked" layout is an artifact of the limited memory on the
original machines that ran Ultima 4. The whole map would take 64k,
too much for a C64 or an Apple II, so the game would keep a limited
number of 1k chunks in memory at a time. As the player moved around,
old chunks were thrown out as new ones were swapped in.
offset len notes
0x0 1024 32x32 map matrix for chunk 0
0x400 1024 32x32 map matrix for chunk 1
...
0xFC00 1024 32x32 map matrix for chunk 63
.ULT files
----------
These contain town information. Specifically, a 32x32 map, plus the
starting position, movement behavior, and conversation index of each
NPC. The conversation index gives the starting position of the NPC's
dialog block in the corresponding .TLK file. I'm not sure why some of
the data is duplicated.
offset len notes
0x0 1024 32x32 town map matrix
0x400 32 tile for NPCs 0-31
0x420 32 start_x for NPCs 0-31
0x440 32 start_y for NPCs 0-31
0x460 32 repitition of 0x400-0x41F
0x480 32 repitition of 0x420-0x43F
0x4A0 32 repitition of 0x440-0x45F
0x4C0 32 movement_behavior for NPCs 0-31 (0x0-fixed, 0x1-wander, 0x80-follow, 0xFF-attack)
0x4E0 32 conversion index (tlk file) for NPCs 0-31
.TLK files
----------
These contain conversation information. The file has a 288 (0x120)
byte block containing his or her dialogues, plus the words that
trigger his or her responses (keywords). Most of the fields are
variable length strings terminated by a single zero byte and the
following field starts immediately after. The blocks are padded
with zero bytes to 288 bytes.
0x0 1 NPC 0 question flag (0-no question, 3-job triggers, 4-health
triggers, 5-keyword 1 triggers, 6-keyword 2 triggers)
0x1 1 NPC 0 question type (0-should answer yes, 0-should answer no)
0x2 1 NPC 0 turns away probability
0x3 var NPC 0 name (zero terminated)
var var NPC 0 pronoun (zero terminated)
var var NPC 0 description (zero terminated)
var var NPC 0 job (zero terminated)
var var NPC 0 response 1 (zero terminated)
var var NPC 0 response 2 (zero terminated)
var var NPC 0 question (zero terminated)
var var NPC 0 yes answer (zero terminated)
var var NPC 0 no answer (zero terminated)
var 5 NPC 0 keyword 1 (zero terminated)
var 5 NPC 0 keyword 2 (zero terminated)
var var zero padding
0x120 3 NPC 1 question flag
...
.CON files
----------
These files contain the 11x11 battleground maps shown when combat
starts. It has the map itself plus starting positions for up to 16
monsters and 8 party members.
offset len notes
0x0 16 start_x for monsters 0-15
0x10 16 start_y for monsters 0-15
0x20 8 start_x for party members 0-7
0x28 8 start_y for party members 0-7
0x30 16 ???
0x40 121 11x11 map matrix
0xB9 7 ???
.DNG files
----------
These files contain dungeon information. The first 512 bytes are the
8x8 maps for each of the 8 levels. These are used for the dungeons 3D
mode. The rest of the file is a set of 16 (64 in the case of the
ABYSS.DNG) 256 byte blocks that define the dungeon rooms.
offset len notes
0x0 64 level 1 8x8 map matrix
0x40 64 level 2 8x8 map matrix
0x80 64 level 3 8x8 map matrix
0xC0 64 level 4 8x8 map matrix
0x100 64 level 5 8x8 map matrix
0x140 64 level 6 8x8 map matrix
0x180 64 level 7 8x8 map matrix
0x1C0 64 level 8 8x8 map matrix
0x200 256 room 0 data
0x300 256 room 1 data
0x400 256 room 2 data
0x500 256 room 3 data
0x600 256 room 4 data
...
0x1100 256 room 15 data
For ABYSS.DNG only:
0x1200 256 room 16 data
0x1300 256 room 17 data
...
0x4100 256 room 63 data
Dungeon Room format:
offset len notes
0x0 16 floor triggers (4 bytes each X 4 triggers possible)
0x10 16 tile for monsters 0-15 (0 means no monster and 0's come FIRST)
0x20 16 start_x for monsters 0-15
0x30 16 start_y for monsters 0-15
0x40 8 start_x for party member 0-7 (north entry)
0x48 8 start_y for party member 0-7 (north entry)
0x50 8 start_x for party member 0-7 (east entry)
0x58 8 start_y for party member 0-7 (east entry)
0x60 8 start_x for party member 0-7 (south entry)
0x68 8 start_y for party member 0-7 (south entry)
0x70 8 start_x for party member 0-7 (west entry)
0x78 8 start_y for party member 0-7 (west entry)
0x80 121 11x11 map matrix for room
0xF9 7 buffer
Trigger format:
offset len notes
0x0 1 tile to be placed (0 means no trigger and 0's come LAST)
0x1 1 2 nibbles indicating the (x,y) coords of trigger
0x2 1 2 nibbles indicating the (x,y) coords of 1st tile to change
0x3 1 2 nibbles indicating the (x,y) coords of 2nd tile to change
TRIGGER EXAMPLE:
46 85 75 65 - Places a Fire Field at (7, 5) and (6, 5) when you
step on (8, 5).
PARTY.SAV
---------
This file stores the information that is stored when the game is
saved. It includes party-wide information like gold and food, plus a
39 byte record for each character.
offset len notes
0x0 4 counter (incremented regularly, probably every screen update)
0x4 2 moves (low word)
0x6 2 moves (high word)
0x8 39 player 0 record
0x2F 39 player 1 record
0x56 39 player 2 record
0x7D 39 player 3 record
0xA4 39 player 4 record
0xCB 39 player 5 record
0xF2 39 player 6 record
0x119 39 player 7 record
0x140 4 food (in units of hundredths)
0x144 2 gold
0x146 16 karma (2 bytes each for honesty, compassion, valor, justice,
sacrifice, honor, spirituality and humility; 0-partial avatar)
0x156 2 torches
0x158 2 gems
0x15A 2 keys
0x15C 2 sextants
0x15E 16 armor (2 bytes each for none (unused), cloth, leather, chain,
plate, magic chain, magic plate, mystic robes)
0x16E 32 weapons (2 bytes each for none (unused), staves, daggers,
slings, maces, axes, swords, bows, crossbows, oil, halberds,
magic axes, magic swords, magic bows, magic wands, mystic
swords)
0x18E 16 reagents (2 bytes each for sulfurous ash, ginseng, garlic,
spider silk, blood moss, black pearl, nightshade, mandrake)
0x19E 52 mixtures (2 bytes each for awaken, blink, cure, dispel,
energy, fireball, gate, heal, iceball, jinx, kill, light,
magic missile, negate, open, protection, quickness,
resurrect, sleep, tremor, undead, view, winds, x-it, y-up,
z-down)
0x1D2 1 items (1 bit each for skull, skull destroyed, candle, book,
bell, key part C, key part L, key part T)
0x1D3 1 items (1 bit each for horn, wheel, candle used at abyss
entrance, book used at abyss entrance, bell used at abyss
entrance, (3 bits unused))
0x1D4 1 x coord
0x1D5 1 y coord
0x1D6 1 stones (1 bit each for BYRGOPWB)
0x1D7 1 runes (1 bit each for HCVJSHSH)
0x1D8 2 number of characters in party
0x1DA 2 transport (0x10-ship facing west, 0x11-ship facing north,
0x12-ship facing east, 0x13-ship facing south, 0x14-horse
facing west, 0x15-horse facing east, 0x18-balloon, 0x1f-on
foot)
0x1DC 2 on surface: balloon status (0-on ground, 1-flying)
in dungeon: current torch duration
0x1DE 2 current phase of left moon (Trammel); range = 0-7
0x1E0 2 current phase of right moon (Felucca); range = 0-7
0x1E2 2 hull integrity of currently boarded ship
if you x-it a ship, save, restart the game, and board the
ship again, you will find that all damage to the ship has
been mysteriously repaired.
0x1E4 2 introduced to Lord British (0-haven't been introduced, 1-introduced)
0x1E6 2 time of last successful hole up & camp
The game stores ((moves / 0x64) & 0xffff) in this field when
you successfully hole up & camp.
If (moves / 0x64) < 0x10000:
You can only hole up & camp successfully if the current
((moves / 0x64) & 0xffff) is different from the value in this
field.
If (moves / 0x64) >= 0x10000:
Hole up & camp is always successful.
0x1E8 2 time of last mandrake/nightshade find
The game stores (moves & 0xf0) in this field when you find
mandrake/nightshade. You can only find mandrake/nightshade
if the current (moves & 0xf0) is different from the value
in this field.
0x1EA 2 time of last successful meditation at a shrine
The game stores ((moves / 0x64) & 0xffff) in this field when
you successfully meditate at a shrine.
If (moves / 0x64) < 0x10000:
You can only meditate successfully if the current
((moves / 0x64) & 0xffff) is different from the value in this
field.
If (moves / 0x64) >= 0x10000:
Meditating at a shrine is always successful.
0x1EC 2 time of last virtue-related conversation
The game stores ((moves / 0x10) & 0xffff) in this field when
one of the following happens:
1) you give gold to a beggar
2) you answer a yes/no question from an NPC (doesn't have to
be a question where the answer affects your virtue)
If ((moves / 0x10) & 0xffff) < 0x10000:
Giving gold to a beggar or answering a virtue-related yes/no
question only increases your karma if ((moves / 0x10) & 0xffff)
is different from the value in this field.
If ((moves / 0x10) & 0xffff) >= 0x10000:
Giving gold or answering a virtue question always increases
your karma.
0x1EE 2 if the party is in a dungeon: coordinates of this dungeon
if not: coordinates of the dungeon last entered by the party
0x1F0 2 orientation in dungeon (0-west, 1-north, 2-east, 3-south)
0x1F2 2 dungeon level (starting at zero, 0xffff = surface)
0x1F4 2 current party location (see below)
The character record format:
offset len notes
0x0 2 hit points
0x2 2 hit points maximum
0x4 2 experience points
0x6 2 strength
0x8 2 dex
0xA 2 int
0xC 2 mp
0xE 2 ???
0x10 2 weapon
0x12 2 armor
0x14 16 name
0x24 1 sex (0xb-male, 0xc-female)
0x25 1 class
0x26 1 status ('G'-good, 'P'-poisoned, 'S'-sleeping, 'D'-dead)
Party location:
Since you can only save on the surface or in a dungeon, the only valid
party locations are 0 and 0x11-0x18.
hex location
0 surface
1 Lord British's castle
2 The Lycaeum
3 Empath Abbey
4 Serpent's Hold
5 Moonglow
6 Britain
7 Jhelom
8 Yew
9 Minoc
a Trinsic
b Skara Brae
c Magincia
d Paws
e Buccaneer's Den
f Vesper
10 Cove
11 Deceit
12 Despise
13 Destard
14 Wrong
15 Covetous
16 Shame
17 Hythloth
18 Abyss
19 Shrine of Honesty
1a Shrine of Compassion
1b Shrine of Valor
1c Shrine of Justice
1d Shrine of Sacrifice
1e Shrine of Honor
1f Shrine of Spirituality
20 Shrine of Humility
MONSTERS.SAV
------------
Ultima 4 maintains a structure (in memory) that I've decided to call
the "monster table."
When you Journey Onward, U4 loads MONSTERS.SAV into the monster table.
When you Quit & Save, U4 writes the monster table to MONSTERS.SAV.
The purpose of the monster table fields depends on the current party
location (surface, dungeon, settlement).
Surface:
On the surface, the monster table contains information about monsters
and inanimate objects (chests, horses, ships, balloon).
A table entry is free if (previousTile[i] == 0). However, when u4dos
deletes and entry, it sets both currentTile[i] and previousTile[i] to 0.
Slots 0-7 are for monsters, while slots 8-31 are for inanimate objects.
Non-empty entries don't have to be contiguous.
Whirlpools and twisters are special cases; they must be placed in slot 0-3,
or they won't swallow ships / damage the party.
When you leave Hythloth, u4dos creates the balloon at (233 / 242).
If there is more than one inanimate object on a tile, objects closer to
the beginning of the table are drawn on top of those closer to the end.
Monsters and the party are always drawn on top of inanimate objects.
The current tile and previous tile values are used during runtime.
However, when the game is saved, the previous tile must be set to the
monster's base tile.
The current tile can be any of the monster's tiles, except for pirate
ships, where the current tile determines which direction the pirate ship
is facing.
If the previous tile is not set to the monster's base tile, it won't behave
properly in u4dos: monsters with ranged attacks won't use them in combat,
twisters and whirlpools will attack the party, and pirates will appear as
pirate ships in battle.
For transports with more than one tile (horse, ship), the previous tile
determines which direction the transport is facing, while the current tile
can be any of the transport's tiles.
0x0 32 current tile
0x20 32 current x coordinate
0x40 32 current y coordinate
0x60 32 tile for previous turn
0x80 32 x coordinate for previous turn
0xA0 32 y coordinate for previous turn
0xC0 32 not used
0xE0 32 not used
Dungeons:
In a dungeon, the monster table contains information about the monsters
in the dungeon.
A monster stored in the monster table is *also* stored in DNGMAP.SAV.
Inanimate objects are not stored in the monster table; they are stored
*only* in DNGMAP.SAV.
0x0 32 not used
0x20 32 current x coordinate
0x40 32 current y coordinate
0x60 32 current tile
0x80 32 x coordinate for previous turn
0xA0 32 y coordinate for previous turn
0xC0 32 dungeon level; range = 0-7
0xE0 32 not used
Settlements:
In a castle/town/village, the monster table is loaded from the settlement's
.ult file, starting at offset 0x400.
It contains information about the settlement's NPC's.
0x0 32 current tile
0x20 32 current x coordinate
0x40 32 current y coordinate
0x60 32 tile for previous turn
0x80 32 x coordinate for previous turn
0xA0 32 y coordinate for previous turn
0xC0 32 movement behavior for NPCs 0-31 (0x0-fixed, 0x1-wander, 0x80-follow, 0xFF-attack)
0xE0 32 conversation index (tlk file) for NPCs 0-31
OUTMONST.SAV
------------
OUTMONST.SAV is a backup of the monster table, created when you enter
a dungeon or settlement.
When you leave a dungeon or settlement, the monster table is reloaded
from OUTMONST.SAV.
Exception: when you enter Hythloth though the ladder in LB's castle,
the game does not write the current monster table to OUTMONST.SAV,
because it already did that when you entered LB's castle.
DNGMAP.SAV
----------
When you Quit & Save in a dungeon, the game saves objects (orbs,
chests) and monsters in DNGMAP.SAV.
DNGMAP.SAV contains the 8x8 maps for all 8 levels.
Every tile is encoded as a byte.
The upper nibble of a tile determines the tile type (see below).
The lower nibble encodes the monster standing on the tile, except
for tiles 0x80 0x90 0xA0 0xD0 (see below).
0x00 = nothing
0x10 = ladder up
0x20 = ladder down
0x30 = ladder up/down
0x40 = chest
0x50 = hole (ceiling)
0x60 = hole (floor)
0x70 = orb (see below)
0x80 = trap (magic winds)
0x81 = trap (falling rocks)
0x8E = trap (pit)
0x90 = fountain (no effect)
0x91 = fountain (healing)
0x92 = fountain (100 hit points damage)
0x93 = fountain (cure)
0x94 = fountain (poison and 100 hit points damage)
0xA0 = magic field (poison)
0xA1 = magic field (energy)
0xA2 = magic field (fire)
0xA3 = magic field (sleep)
0xB0 = altar (stone color depends on dungeon)
0xC0 = door
0xDn = dungeon room #n
0xE0 = illusionary wall
0xF0 = wall
Monsters:
0 = none
1 = rat
2 = bat
3 = spider
4 = ghost
5 = slime
6 = troll
7 = gremlin
8 = mimic
9 = reaper
A = insects
B = gazer
C = phantom
D = orc
E = skeleton
F = rogue
Orbs:
When a PC touches an orb, one or more attributes are raised by 5
points each.
Which attributes are raised depends on the dungeon.
dungeon attributes
Deceit I--
Despise -D-
Destard --S
Wrong ID-
Covetous -DS
Shame I-S
Hythloth IDS
TITLE.EXE
---------
This executable is launched by ultima.com to display the introduction
and create new characters. When "journey onward" is selected from the
intro menu, it exits and ultima.com passes control off to avatar.exe,
the main game executable. This .exe has lots of the data necessary
for the intro screens embedded in it.
offset len notes
0x0 17445 ???
0x4425 11088 text for introduction, gypsy dialog and gyspy questions
(zero terminated strings)
0x6f75 1035 ???
0x7380 184 list of frames sequences for beasties on intro screen
0x7438 54 ???
0x746e 532 266 x/y pairs that are the coordinates for the pixels that
make up the Lord British signature on the introductory
title screen
0x7682 1 zero terminating byte
0x7683 95 tile values for the 19x5 map that appears on the
introductory title screen
0x76e2 548 script data for the intro map animations
0x7906 ... ???
AVATAR.EXE
----------
This is the main game executable, launched from ultima.com (or run on
its own to skip the intro). Lots of the special case data is embedded
in this .exe.
offset len notes
0x0 63843 ???
0x0f963 1 volume on/off flag
0x0f964 27 13 two-byte code pointers to 13 sound generation routines
plus one padding byte
0x0f97f 171 .ULT filenames; 16 zero terminated strings
0x0fa2a 48 stone colors; 8 zero terminated strings
0x0fa5a 91 .DNG filenames; 8 zero terminated strings
0x0fab5 28 ???
0x0fad1 8 moongate x-coordinates (one byte for each moongate starting
at moonglow)
0x0fad9 8 moongate y-coordinates (one byte for each moongate starting
at moonglow)
0x0fae1 32 16 two-byte offsets to .ULT filenames (value + 62141 gives
file offset)
0x0fb01 32 area x-coordinates (one byte for each town, city, castle,
dungeon, shrine)
0x0fb21 32 area y-coordinates (one byte for each town, city, castle,
dungeon, shrine)
0x0fb41 16 8 two-byte offsets to stone colors (value + 62141 gives
file offset)
0x0fb51 16 8 two-byte offsets to .DNG filenames (value + 62141 gives
file offset)
0x0fb61 72 ???
0x0fba9 8 pirates cove ship x coordinates
0x0fbb1 8 pirates cove ship y coordinates
0x0fbb9 8 pirates cove ship tiles
0x0fbc1 37 zero terminated list of tiles that are walkable
0x0fbe6 149 14 zero-terminated navigation strings ("North", "Sail
North", etc.)
0x0fc7b 539 Chamber of the Codex virtue questions
0x0fe96 78 ???
0x0fee4 647 Chamber of the Codex dialog strings
0x1016b 28 ???
0x10187 509 Chamber of the Codex dialog strings
0x10384 83 ???
0x103d7 1280 abyss question dialog strings
0x108d7 22 11 two-byte offsets to abyss question answers (value +
62141 gives file offset)
0x108ed 80 ???
0x1093d 169 .TLK filenames; 16 zero terminated strings
0x109e6 13 "OUTMONST.SAV" zero terminated string
0x109f3 32 16 two-byte offsets to .TLK filenames (value + 62139 gives
file offset)
0x10a13 659 ???
0x10ca6 246 monster names; 36 zero terminated strings
0x10d9c 129 weapon names; 16 zero terminated strings
0x10e1d 77 armor names; 8 zero terminated strings
0x10e6a 64 weapon abbreviations; 16 zero terminated strings
0x10eaa 55 character class names; 8 zero terminated strings
0x10ee1 58 npc type names; 8 zero terminated strings
0x10f1b 81 reagent names; 8 zero terminated strings
0x10f6c 434 spell names; 26 zero terminated strings
0x1101e 292 castle/city/town/dungeon/shrine names; 32 zero terminated
strings
0x11142 11 ???
0x1114d 72 36 two-byte offsets to monster names (value + 62131 gives
file offset)
0x11195 32 16 two-byte offsets to weapon names (value + 62131 gives
file offset)
0x111b5 16 8 two-byte offsets to armor names (value + 62131 gives
file offset)
0x111c5 32 16 two-byte offsets to weapon abbreviations (value + 62131
gives file offset)
0x111e5 16 8 two-byte offsets to character class names (value + 62131
gives file offset)
0x111f5 330 ???
0x1133f 26 mp required for each spell (one byte per spell)
0x11359 654 ???
0x115e7 16 mask of which classes can use each weapon (one byte per
weapon)
0x115f7 8 mask of which classes can use each type of armor (one byte
per armor type)
0x115ff 134 ???
0x11685 52 monster hp table
0x116b9 36 monster leader types (one byte per monster type)
0x116dd 36 monster encounter size table (one byte per monster type)
0x11701 2 ???
0x11703 16 weapon value list (one byte per weapon type)
0x11713 8 armor value list (one byte per armor type)
0x1171b 16 weapon type list (one byte per weapon type; 0 = melee, 0xff
= missile)
0x1172b 154 .CON filenames; 14 zero terminated strings
0x117c5 28 14 two-byte offsets to .CON filenames (value + 62131 gives
file offset)
0x117e1 64 dungeon .CON filenames; 7 zero terminated strings
0x11821 164 ???
0x118c5 12 altar room exit destinations
0-3 = truth (north, east, south, west)
4-7 = love
8-11 = courage
0x118d1 146 ???
0x11963 8 ambush monster types
0x1196b 190 miscellaneous text strings
0x11a29 26 spell reagent masks (one byte per spell)
0x11a43 364 miscellaneous text strings
0x11baf 16 city/runemask pairs (city id, corresponding rune bitmask)
0x11bbf 12 miscellaneous text string
0x11bcb 120 24 five-byte item location records (see below)
0x11c43 288 ???
0x11d63 250 companion dialog text
0x11e5d 16 8 two-byte offsets to virtue adjectives for companion
dialogs (value + 62123 gives file offset)
0x11e6d 1404 ???
0x123e9 3486 Hawkwind dialog text; the first 40 zero terminated
strings are his responses for 5 levels times 8 virtues,
plus some other miscellaneous dialog strings
0x13187 80 40 two-byte offsets to Hawkwind dialog strings (value +
62075 gives file offset)
0x131d7 564 reagent vendor dialog text; x zero terminated strings
0x133eb 16 reagent vendor index for each city (one byte per
castle/city/town)
0x133fb 8 4 two-byte offsets to reagent shop names (value + 62075
gives file offset)
0x13403 8 4 two-byte offsets to reagent shopkeeper names (value +
62075 gives file offset)
0x1340b 24 price for each of the first six reagents at Moonglow,
Skara Brae, Paws, and Buccaneers Den respectively (one
byte per price)
0x13423 1274 weapon vendor dialog text; 28 zero terminated strings
0x1391d 12 6 two-byte offsets to weapon shop names (value + 62075
gives file offset)
0x13929 12 6 two-byte offsets to weapon shopkeeper names (value +
62075 gives file offset)
0x13935 24 which four weapons each of the six weapons vendors can
sell (one byte per weapon)
0x1394d 32 price of each weapon (two bytes for each price)
0x1396d 16 weapon vendor index for each city (one byte per
castle/city/town)
0x1397d 28 14 two-byte offsets to weapon descriptions (value + 62075
gives file offset) for all weapons except hands and
mystic
0x13999 522 more weapon vendor dialog text; 27 zero terminated strings
0x13ba3 646 armor vendor dialog text; 19 zero terminated strings
0x13e29 10 5 two-byte offsets to armor shop names (value + 62075 gives
file offset)
0x13933 12 6 two-byte offsets to armor shopkeeper names (value + 62075
gives file offset)
0x13e3f 20 which four types of armor each of the five armor vendors
can sell (one byte per armor type)
0x13e53 4 zero padding
0x13e57 16 price of each type of armor (two bytes for each price)
0x13e67 16 armor vendor index for each city (one byte per
castle/city/town)
0x13e77 12 6 two-byte offsets to armor descriptions (value + 62075
gives file offset) for all armor types except skin and
mystic
0x13e83 484 more armor vendor dialog text; 27 zero terminated strings
0x14067 318 horse vendor dialog text; 7 zero terminated strings
0x141a5 622 guild vendor dialog text; x zero terminated strings
0x14413 6 ???
0x14419 8 price per unit of each guild item (two bytes for each price)
0x14521 8 quantity per unit of each guild item (two bytes for each
quantity)
0x14429 4 2 two-byte offsets to guild shop names (value + 62075 gives
file offset)
0x1442d 4 2 two-byte offsets to guild shopkeeper names (value + 62075
gives file offset)
0x14431 8 4 two-byte offsets to guild item inquiry responses (value +
62075 gives file offset) for torches, gems, keys,
sextants
0x14439 702 inn dialog text; x zero terminated strings
0x146F7 16 inn index for each city (one byte per castle/city/town)
0x14707 8 inn sleep location x coordinate for seven inns plus zero pad
0x1470f 8 inn sleep location y coordinate for seven inns plus zero pad
0x14717 8 inn prices for seven inns plus zero pad
0x1471f 14 7 two-byte offsets to inn names (value + 62067 gives file
offset)
0x1472d 14 7 two-byte offsets to inn names (value + 62067 gives file
offset)
0x1473b 14 7 two-byte offsets to inn price dialogs (value + 62067
gives file offset)
0x14749 424 more inn dialog text; x zero terminated strings
0x148f1 266 healer dialog text; x zero terminated strings
0x149fb 16 healer index for each city (one byte per castle/city/town)
0x14a0b 20 10 two-byte offsets to healer shopkeeper names (value + 62067
gives file offset)
0x14a1f 20 10 two-byte offsets to healer shopkeeper names (value + 62067
gives file offset)
0x14b33 598 more healer dialog text; x zero terminated strings
0x14d89 978 tavern dialog text; x zero terminated strings
0x1515b 16 tavern index for each city (one byte per castle/city/town)
0x1516b 12 minimum price for information at each tavern (two bytes for
each price)
0x15177 12 6 two-byte offsets to tavern shop names (value + 62067 gives
file offset)
0x15183 12 6 two-byte offsets to tavern shopkeeper names (value + 62067
gives file offset)
0x1518f 12 6 two-byte offsets to tavern specialty names (value + 62067
gives file offset)
0x1519b 12 price for plate of food at each tavern (two bytes for
each price)
0x151a7 12 7 two-byte offsets to tavern information topics (value +
62067 gives file offset) (??? why 7, not 6)
0x151b5 12 6 two-byte offsets to tavern information responses (value +
62067 gives file offset)
0x151c1 598 more tavern dialog text; x zero terminated strings
0x15417 456 food vendor dialog text; x zero terminated strings
0x155df 16 food vendor index for each city (one byte per castle/city/town)
0x155ef 10 price for 25 units of food at each vendor (two bytes for
each price) for Moonglow, Britan, Yew, Skara Brae, and
Paws, respectively
0x155f9 10 5 two-byte offsets to food shop names (value + 62067 gives
file offset)
0x15603 10 5 two-byte offsets to food shopkeeper names (value + 62067
gives file offset)
0x1560d 189 Lord British dialog keywords; 27 zero terminated strings
0x156ca 2968 Lord British dialog text; 25 zero terminated strings ("He
says", plus responses for last 24 of the above keywords)
0x16262 104 ???
0x162ca 2037 Lord British "help" response dialog strings
0x16abf ... ???
Each item location record has the following structure:
offset len notes
0x0 1 item location (same encoding as party location in PARTY.SAV,
e.g. 0 for surface)
0x1 1 item x coordinate
0x2 1 item y coordinate
0x3 2 ??? (a pointer?)
Sources
-------
http://www.geocities.com/xenerkes/
http://www.moongates.com/u4/Tech.asp
Marc Winterrowd <nodling at yahoo dot com>
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