The Item List, by ID

Here is the exhaustive list of all usable items in FF1-DoS. There are a total of 43 items, denoted as 0×01 through 0×2b.

0×01	Potion	Hi-Potion	X-Potion	Ether
0×05	Turbo Ether	Dry Ether	Elixir	Megalixir
0×09	Phoenix Down	Remedy	Antidote	Gold Needle
0×0d	Eye Drops	Echo Grass	Emergency Exit	Sleeping Bag
0×11	Tent	Cottage	Spider’s Silk	White Fang
0×15	Red Fang	Blue Fang	Light Curtain	Red Curtain
0×19	White Curtain	Blue Curtain	Lunar Curtain	Herme’s Shoes
0×1d	Vampire Fang	Cockatrice Claw	Giant’s Tonic	Faerie Tonic
0×21	Strength Tonic	Protect Drink	Speed Drink	Golden Apple
0×25	Silver Apple	Soma Drop	Power Plus	Stamina Plus
0×29	Mind Plus	Speed Plus	Luck Plus

Item Data

Table location: 0×19f08c — 0×19f33b.

Data structure size: 16 bytes

Example: Potion

00 00	0d	10	04	01	32 00	28 00 00 00	14 00 00 00
Item #	Effect	Target	When Used	Graphic	Power	Purchase cost	Selling cost

Decoding various bytes of information

Effect (1 byte)

For the potion, this byte is 0d. This byte controls the effect that the item has when used:

• 00- References Sleeping Bag/Tent/Cottage. The Power byte references which one of those three the item acts as.

• 01- Maximum HP increases by 1st Power byte * 10.

• 02- Maximum MP increases by 1st Power byte.

• 03- Strength increases by a random number from 1 to a number specified by the 1st Power Byte.

• 04- Stamina increases by a random number from 1 to a number specified by the 1st Power Byte.

• 05- Intellect increases by a random number from 1 to a number specified by the 1st Power Byte.

• 06- Agility increases by a random number from 1 to a number specified by the 1st Power Byte.

• 07- Luck increases by a random number from 1 to a number specified by the 1st Power Byte.

• 08- Giant Tonic

• 09- Faerie Tonic

• 0a- Strength Tonic

• 0b- Protect Drink

• 0c- Speed Drink

• 0d- HP increase (up to maximum)

• 0e- MP increase (up to maximum)

• 0f- HP/MP maximum. The first Power byte is the target; if 00, it only heals one character, but if 01, it cures all characters.

• 10- Raise character from death (Phoenix Down)

• 11- Cure multiple conditions (Remedy)

• 12- Same effect as Spell ID. The 1st Power byte becomes the Spell ID to reference.

Target (1 byte)

How the spell is targeted in game. It will be one of these five values:

• 01- All enemies

• 02- One enemy

• 04- Caster

• 08- All allies

• 10- One ally

When Used (1 byte)

Determines when the item can be used.

• 01- While traveling only

• 02- In battle only

• 04- Anytime

Graphic (1 byte)

Determines the graphic displayed when the item is used.

Pointer mayhem

Beginning at 0×07e954 and ending at 0×07e9c7, there is a list of 0×1d, or 29 pointers that pertain to spells that are bound to items of the same ID. Spell 01‘s (Cure) pointer is found at 0×07e954, spell 02‘s (Dia) pointer is found at 0×7e958, etc.

If an item’s pointer is c8e90708, this spell cannot be used in the status screen. If the pointer is 08ea0708, it can.

0×07e9d2— Check for Exit spell: 2816: cmp r0, #0×16

0×07e9d6— Check for Teleport spell: 2833: cmp r0, #0×33

Other information that may not be obvious

It is important to note that I have not figured out all the information that there is to know about armor. So there’s an avenue for intrepid hackers to possibly learn something new.