FF2 Shop Bytes

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big thanks to Vagla for figuring out the shop locations and format

buying table:
$38190 - $3820F
2 bytes each, 128 bytes total

table:
02 00 04 00 05 00 08 00 0A 00 0F 00 14 00 1E 00
28 00 32 00 50 00 64 00 7D 00 96 00 C8 00 FA 00
E8 03 E8 03 D0 07 E8 03 2C 01 1E 00 0A 00 C8 00
32 00 01 00 90 01 64 00 96 00 00 00 00 00 00 00
98 3A 20 4E A8 61 30 75 40 9C 50 C3 14 00 E8 FD
00 00 32 00 50 00 64 00 00 00 96 00 C8 00 FA 00
2C 01 90 01 F4 01 58 02 20 03 E8 03 DC 05 08 07
D0 07 C4 09 B8 0B A0 0F 88 13 40 1F 10 27 E0 2E

Item prices:
38010 - 3820F

38030 & 38031: Price to sell Potion

38032 & 38033: Price to sell Antidote

38034 & 38035: Price to sell Gold-Pin

38038 & 38039: Price to sell Maiden's Kiss

38042 & 38043: Price to sell Ether

38036 & 38037: Price to sell Crucifix

3803A & 3803B: Price to sell Echo Screen

3803C & 3803D: Price to sell Eye Drop

3803E & 3803F: Price to sell Phoenix Down

38040 & 38041: Price to sell Elixir

38044 & 38045: Price to sell X-Potion

38046 & 38047: Price to sell Cottage

38048 & 38049: Price to sell Wind Flute

3804A & 3804B: Price to sell Earth Drum

3804C & 3804D: Price to sell Garlic

3804E & 3804F: Price to sell Unicorn

38050 & 38051: Price to sell Ice Wind

38052 & 38053: Price to sell Elder IQ

38054 & 38055: Price to sell Heart

38056 & 38057: Price to sell Shoes

38058 & 38059: Price to sell Thread

3805A & 3805B: Price to sell SilentB

3805C & 3805D: Price to sell Egg Timer

3805E & 3805F: Price to sell Death God

38060 & 38061: Price to sell Bacchus' Wine

38062 & 38063: Price to sell Dragon Bean

38064 & 38065: Price to sell Valium

38066 & 38067: Price to sell Ice Scythe

38068 & 38069: Price to sell Fang

3806A & 3806B: Price to sell Mirror

3806C & 3806D: Price to sell Hellfire

3806E & 3806F: Price to sell Phin, I imagine

38070 & 38071: Price to sell "unarmed," I think

38072 & 38073: Price to sell Buckler

38074 & 38075: Price to sell Bronze Shield

38076 & 38077: Price to sell Mithril Shield

38078 & 38079: Price to sell Gold Shield

3807A & 3807B: Price to sell Ice Shield

3807C & 3807D: Price to sell Flame Shield

3807E & 3807F: Price to sell Diamond Shield

38080 & 38081: Price to sell Dragon Shield

38082 & 38083: Price to sell Aegis Shield

38084 & 38085: Price to sell Knife

38086 & 38087: Price to sell Dagger

38088 & 38089: Price to sell Mithril Dagger

3808A & 3808B: Price to sell Gouche

3808C & 3808D: Price to sell Orhacon

3808E & 3808F: Price to sell Ripper

38090 & 38091: Price to sell CatClaw

38092 & 38093: Price to sell Cane

38094 & 38095: Price to sell Mace

38096 & 38097: Price to sell Mithril Cane

38098 & 38099: Price to sell Were Cane

3809A & 3809B: Price to sell Magic Cane

3809C & 3809D: Price to sell Power Cane

3809E & 3809F: Price to sell Evil Cane

380A0 & 380A1: Price to sell Greed Cane

380A2 & 380A3: Price to sell Diamond Cane

380A4 & 380A5: Price to sell Javelin

380A6 & 380A7: Price to sell Spear

380A8 & 380A9: Price to sell Mithril Spear

380AA & 380AB: Price to sell Trident

380AC & 380AD: Price to sell Demon

380AE & 380AF: Price to sell Flame Spear

380B0 & 380B1: Price to sell Ice Spear

380B2 & 380B3: Price to sell Bolt Spear

380B4 & 380B5: Price to sell Holy Spear

380B6 & 380B7: Price to sell Broad Sword

380B8 & 380B9: Price to sell Long Sword

380BA & 380BB: Price to sell Mithril Sword

380BC & 380BD: Price to sell Ancient Sword

380BE & 380BF: Price to sell Sleep Sword

380C0 & 380C1: Price to sell Winged Sword

380C2 & 380C3: Price to sell Blood Sword

380C4 & 380C5: Price to sell Earth Sword

380C6 & 380C7: Price to sell Flame Sword

380C8 & 380C9: Price to sell Ice Sword

380CA & 380CB: Price to sell Defender

380CC & 380CD: Price to sell Sun Sword

380CE & 380CF: Price to sell Excalibur

380D0 & 380D1: Price to sell Masamune

380D2 & 380D3: Price to sell Axe

380D4 & 380D5: Price to sell Battle Axe

380D6 & 380D7: Price to sell Mithril Axe

380D8 & 380D9: Price to sell Demon Axe

380DA & 380DB: Price to sell Ogre Axe

380DC & 380DD: Price to sell Poison Axe

380DE & 380DF: Price to sell Rune Axe

380E0 & 380E1: Price to sell Bow

380E2 & 380E3: Price to sell Long bow

380E4 & 380E5: Price to sell Mithril Bow

380E6 & 380E7: Price to sell Blind Bow

380E8 & 380E9: Price to sell Flame Bow

380EA & 380EB: Price to sell Ice Bow

380EC & 380ED: Price to sell Killer Bow

380EE & 380EF: Price to sell Yoichi Bow

380F0 & 380F1: Price to sell Leather Helmet

380F2 & 380F3: Price to sell Bronze Helmet

380F4 & 380F5: Price to sell Mithril Helmet

380F6 & 380F7: Price to sell Giant Helmet

380F8 & 380F9: Price to sell Flame Helmet

380FA & 380FB: Price to sell Diamond Helmet

380FC & 380FD: Price to sell Genji Helmet

380FE & 380FF: Price to sell Spiral Helmet

38100 & 38101: Price to sell Goldpin Helmet

38102 & 38103: Price to sell Ribbon

38104 & 38105: Price to sell Clothes

38106 & 38107: Price to sell Leather Armor

38108 & 38109: Price to sell Bronze Armor

38109 & 3810A: Price to sell Mithril Armor

3810C & 3810D: Price to sell Gold Armor

3810E & 3810F: Price to sell Knight Armor

38110 & 38111: Price to sell Flame Armor

38112 & 38113: Price to sell Ice Armor

38114 & 38115: Price to sell Diamond Armor

38116 & 38117: Price to sell Dragon Armor

38118 & 38119: Price to sell Genji Armor

3811A & 3811B: Price to sell Copper Armor

3811C & 3811D: Price to sell Silver Armor

3811E & 3811F: Price to sell Ruby Armor

38120 & 38121: Price to sell Quartz Armor

38122 & 38123: Price to sell Diamond Armor

38124 & 38125: Price to sell White Robe

38126 & 38127: Price to sell Black Robe

38128 & 38129: Price to sell Power Armor

3812A & 3812B: Price to sell Black Armor

3812C & 3812D: Price to sell Leather Gloves

3812E & 3812F: Price to sell Bronze Gloves

38130 & 38131: Price to sell Mithril Gloves

38132 & 38133: Price to sell Thief Gloves

38134 & 38135: Price to sell Giant Gloves

38136 & 38137: Price to sell Ice Gloves

38138 & 38139: Price to sell Diamond Gloves

3813A & 3813B: Price to sell Genji Gloves

3813C & 3813D: Price to sell Defender Gloves

3813E & 3813F: Price to sell Power Gloves

38140 & 38141: Price to sell Fire Scroll

38142 & 38143: Price to sell Bolt Scroll

38144 & 38145: Price to sell Ice Scroll

38146 & 38147: Price to sell Aero Scroll

38148 & 38149: Price to sell Drain Scroll

3814A & 3814B: Price to sell Osmose Scroll

3814C & 3814D: Price to sell Flare Scroll

3814E & 3814F: Price to sell Sleep Scroll

38150 & 38151: Price to sell Stone Scroll

38152 & 38153: Price to sell Stop Scroll

38154 & 38155: Price to sell Charm Scroll

38156 & 38157: Price to sell Blind Scroll

38158 & 38159: Price to sell Curse Scroll

3815A & 3815B: Price to sell Toad Scroll

3815C & 3815D: Price to sell Break Scroll

3815E & 3815F: Price to sell Death Scroll

38160 & 38161: Price to sell Warp Scroll

38162 & 38163: Price to sell Berserk Scroll

38164 & 38165: Price to sell Haste Scroll

38166 & 38167: Price to sell Aura Scroll

38168 & 38169: Price to sell Cure Scroll

3816A & 3816B: Price to sell Life Scroll

3816C & 3816D: Price to sell Peep Scroll

3816E & 3816F: Price to sell Heal Scroll

38170 & 38171: Price to sell Barrier Scroll

38172 & 38173: Price to sell Blink Scroll

38174 & 38175: Price to sell Safe Scroll

38176 & 38177: Price to sell Shell Scroll

38178 & 38179: Price to sell Wall Scroll

3817A & 3817B: Price to sell Dispel Scroll

3817C & 3817D: Price to sell Mini Scroll

3817E & 3817F: Price to sell Mute Scroll

38180 & 38181: Price to sell Anti Scroll

38182 & 38183: Price to sell Fog Scroll

38184 & 38185: Price to sell Slow Scroll

38186 & 38187: Price to sell Change Scroll

38188 & 38189: Price to sell Fear Scroll

3818A & 3818B: Price to sell Holy Scroll

3818C & 3818D: Price to sell Exit Scroll

3818E & 3818F: Price to sell Ultima Scroll

$3861D - $386F5: every shop in the game, there might be more after, gonna have to test for that

Shops work like this, take the first byte of an item, that is the item ID number, use the chart below. For now, let's use a
Potion, ID number 10. The second byte is what price it looks at. The format is, take that number, multiply it by 2, then add
0x38010. As an example, D2. Multiply by 2 is 1A4, add 0x38010. Answer is 381B4, so look at 381B4. The table at the top has
D0 07 at that byte (381B4 & 381B5), byte swap... 7D0, and you must now fork out 2000 gil to buy that potion. So the first
slot in your shop would be 10 D2, and for the easy stuff, use Atlea's Weapon shop since it's first in the list. So now in
your hex editor, head to offset 3861D, you should see 3A ED there, change it to 10 D2. Save, open up your rom, head to
Altea's Weapon shop. Good work, now you need to pay 2000 gil for a friggin Potion... :)

Altea:
$3861D - $38624: weapon shop
3A ED 41 EF 4A F0 53 F1
|  |  |  |  |  |  |  |
|  |  |  |  |  |  |  price 4
|  |  |  |  |  |  item 4
|  |  |  |  |  price 3
|  |  |  |  item 3
|  |  |  price 2
|  |  item 2 
|  price 1
item 1
Knife, 150, Cane, 250, Javelin, 300, Broad Sword, 400

$38625 - $3862C: armor shop
31 E9 70 EA 7A E6 8E E9
Buckler, 50, Leather Helmet, 80, Clothes, 20, Leather Gloves, 50

$3862D - $38634: magic shop
98 F1 99 F1 9A F1 AC EE
Fire Scroll, 400, Bolt Scroll, 400, Ice Scroll, 400, Cure Scroll, 200

$38635 - $3863C: mithril weapon shop
3C F4 43 F6 4C F6 55 F7
Mithril Dagger, 800, Mithril Cane, 1500, Mithril Spear, 1500, Mithril Sword, 1800

$3863D - $38644: mithril armor shop
33 F2 72 F0 7D F5 90 F4
Mithril Shield, 500, Mithril Helmet, 300, Mithril Armor, 1000, Mithril Gloves, 800

Gatea:
$38645 - $3864C: weapon shop
4A F0 53 F1 61 F2 68 ED
Javelin, 300, Broad Sword, 400, Axe, 500, Bow, 150

$3864D - $38654: armor shop
31 E9 70 EA 7B EB 8E E9
Buckler, 50, Leather Helmet, 80, Leather Armor, 100, Leahter Gloves, 50

Poft:
$38655 - $3865C: weapon shop
3B F1 42 F2 61 F2 68 ED
Dagger, 400, Mace, 500, Axe, 500, Bow, 150

$3865D - $38664: armor shop
32 EE 71 EE 85 EE 8F F0
Bronze Shield, 200, Bronze Helmet, 200, Copper Armor, 200, Broze Gloves, 300

$38665 - $3866C: magic shop
AC EE B1 F1 B2 F1 B3 F1
Cure Scroll, 200, Blink Scroll, 400, Safe Scroll, 400, Shell Scroll, 400

Unknown:
$3866D - $38674: unknown mithril shop (weapons)
4C F6 55 F7 63 F8 6A F5
Mithril Spear, 1500, Mithril Sword, 1800, Mithril Axe, 2000, Mithril Bow, 1000

Salamando:
$38675 - $3867C: weapon shop
42 F2 54 F3 62 F4 69 EF
Mace, 500, Long Sword, 600, Battle Axe, 800, Long Bow, 250

$3867D - $38684: armor shop
32 EE 71 EE 7C F1 8F F0
Bronze Shield, 200, Bronze Helmet, 200, Bronze Armor, 400, Bronze Gloves, 300

$38685 - $3868C: magic shop
AD F6 B8 F6 A8 F6 BE F6
Life Scroll, 1500, Anti Scroll, 1500, Warp Scroll, 1500, Exit Scroll, 1500

Bofsk:
$3868D - $38694: weapon shop
3B F1 4B F2 54 F3 69 EF
Dagger, 400, Spear, 500, Long Sword, 600, Long Bow, 250

$38695 - $3869C: armor shop
32 EE 71 EE 86 F1 8F F0
Bronze Shield, 200, Bronze Helmet, 200, Silver Armor, 400, Bronze Gloves, 300

$3869D - $386A4: magic shop
BC F4 AE 4F AF F4 B7 F4
Fear Scroll, 800, Peep Scroll, 800, Heal Scroll, 800, Mute Scroll, 800

Phin:
$386A5 - $386AC: weapon shop
44 FA 4D FC 58 FC 6C FC
Were Cane, 3000, Trident, 5000, Winged Sword, 5000, Flame Bow, 5000

$386AD - $387B4: armor shop
34 F5 73 F3 7E F9 88 F5
Gold Shield, 1000, Giant Helmet, 600, Gold Armor, 2500, Quartz Armor, 1000

$387B5 - $387BC: magic shop
B5 FA B6 FA B9 FA BA FA
Dispel Scroll, 3000, Mini Scroll, 3000, Fog Scroll, 3000, Slow Scroll, 3000

Mysidia:
$368BD - $369C4: weapon shop
46 FD 4F E0 65 E0 6D FC
Power Cane, 8000, Flame Spear, 15,000, Ogre Axe, 15,000, Ice Bow, 5000

$386C5 - $386CC: armor shop
35 FC 7F FC 91 F5 92 F8
Ice Shield, 5000, Knight Armor, 5000, Thief Gloves, 1000, Giant Gloves, 2000

$386CD - $386D4: magic shop
B0 FD B4 FD BB FD BD E1
Barrier Scroll, 8000, Wall Scroll, 8000, Change Scroll, 8000, Holy Scroll, 20,000

Tropical Island:
$386D5 - $386DC: Miscellaneous
64 FE 4E FE 87 F4 1D FD
Demon Axe, 10,000, Demon Spear, 10,000, Ruby Armor, 800, Earth Drum, 8000

$386DD - $386F4: all three item shops
10 E9 1A F2 16 EB 11 EE
Potion, 50, X-Potion, 500, Eye Drop, 100, Antidote, 200

13 F5 15 F8 14 F9 12 F9
Crucifix, 1000, Echo Screen, 2000, Maiden's Kiss, 2500, Gold Pin, 2500

17 FC 19 F9 1B FC 18 E5
Phoenix Down, 5000, Ether, 2500, Cottage, 5000, Elixir, 50,000

Jade passage:
$386F5 - $386FC: magic shop
A7 FE A9 FE AA E1 9E E4
Death Scroll, 10,000, Berserk Scroll, 10,000, Haste Scroll, 20,000, Flare Scroll, 40,000

Item ID's:
00: Nothing

01-0E: Key Items
01: Ring
02: Canoe
03: Pass
04: Mithril
05: Ice Sled
06: Goddess Bell
07: Egil Torch
08: Sun Flame
09: Pendant
0A: Egg
0B: White Mask
0C: Black Mask
0D: Crystal Rod
0E: Hiryuu

0F: ???

10-2F: Items
10: Potion
11: Antidote
12: Gold Pin
13: Crucifix
14: Maiden's Kiss
15: Echo Screen
16: Eye Drop
17: Phoenix Down
18: Elixir
19: Ether
1A: X Potion
1B: Cottage
1C: Wind Flute
1D: Earth Drum
1E: Garlic
1F: Unicorn
20: Ice Wind
21: Elder IQ
22: Heart
23: Shoes
24: Thread
25: SilentB (what the hell is this?)
26: Egg Timer
27: Death God
28: Bacchus' Wine
29: Dragon Bean
2A: Valium
2B: Ice Scythe
2C: Fang
2D: Mirror
2E: Hellfire
2F: Phin (I'm not entirely convinced this is an item.)

30: "Unarmed"

31-39: Shields
31: Buckler
32: Bronze Shield
33: Mithril Shield
34: Gold Shield
35: Ice Shield
36: Flame Shield
37: Diamond Shield
38: Dragon Shield
39: Aegis Shield

3A-40: Dirks
3A: Knife
3B: Dagger
3C: Mithril Dagger
3D: Gouche
3E: Orhacon
3F: Ripper
40: CatClaw

41-49: Canes
41: Cane
42: Mace
43: Mithril Cane
44: Were Cane
45: Magic Cane
46: Power Cane
47: Evil Cane
48: Greed Cane
49: Diamond Cane

4A-52: Spears
4A: Javelin
4B: Spear
4C: Mithril Spear
4D: Trident
4E: Demon
4F: Flame Spear
50: Ice Spear
51: Bolt Spear
52: Holy Spear

53-60: Swords
53: Broad Sword
54: Long Sword
55: Mithril Sword
56: Ancient Sword
57: Sleep Sword
58: Winged Sword
59: Blood Sword
5A: Earth Sword
5B: Flame Sword
5C: Ice Sword
5D: Defender
5E: Sun Sword
5F: Excalibur
60: Masamune

61-67: Axe's
61: Axe
62: Battle Axe
63: Mithril Axe
64: Demon Axe
65: Ogre Axe
66: Poison Axe
67: Rune Axe

68-6F: Bow's
68: Bow
69: Long bow
6A: Mithril Bow
6B: Blind Bow
6C: Flame Bow
6D: Ice Bow
6E: Killer Bow
6F: Yoichi Bow

70-79: Helmets
70: Leather Helmet
71: Bronze Helmet
72: Mithril Helmet
73: Giant Helmet
74: Flame Helmet
75: Diamond Helmet
76: Genji Helmet
77: Spiral Helmet
78: Goldpin Helmet
79: Ribbon

7A-8D: Armor
7A: Clothes
7B: Leather Armor
7C: Bronze Armor
7D: Mithril Armor
7E: Gold Armor
7F: Knight Armor
80: Flame Armor
81: Ice Armor
82: Diamond Armor
83: Dragon Armor
84: Genji Armor
85: Copper Armor
86: Silver Armor
87: Ruby Armor
88: Quartz Armor
89: Diamond Armor
8A: White Robe
8B: Black Robe
8C: Power Armor
8D: Black Armor

8E-97: Gloves
8E: Leather Gloves
8F: Bronze Gloves
90: Mithril Gloves
91: Thief Gloves
92: Giant Gloves
93: Ice Gloves
94: Diamond Gloves
95: Genji Gloves
96: Defender Gloves
97: Power Gloves

98-BF: Scrolls
98: Fire Scroll
99: Bolt Scroll
9A: Ice Scroll
9B: Aero Scroll
9C: Drain Scroll
9D: Osmose Scroll
9E: Flare Scroll
9F: Sleep Scroll
A0: Stone Scroll
A1: Stop Scroll
A2: Charm Scroll
A3: Blind Scroll
A4: Curse Scroll
A5: Toad Scroll
A6: Break Scroll
A7: Death Scroll
A8: Warp Scroll
A9: Berserk Scroll
AA: Haste Scroll
AB: Aura Scroll
AC: Cure Scroll
AD: Life Scroll
AE: Peep Scroll
AF: Heal Scroll
B0: Barrier Scroll
B1: Blink Scroll
B2: Safe Scroll
B3: Shell Scroll
B4: Wall Scroll
B5: Dispel Scroll
B6: Mini Scroll
B7: Mute Scroll
B8: Anti Scroll
B9: Fog Scroll
BA: Slow Scroll
BB: Change Scroll
BC: Fear Scroll
BD: Holy Scroll
BE: Exit Scroll
BF: Ultima Scroll

C0 - E7: Spells (in characters spell menu)
C0: Fire
C1: Bolt
C2: Ice
C3: Aero
C4: Drain
C5: Osmose
C6: Flare
C7: Sleep
C8: Stone
C9: Stop
CA: Charm
CB: Blind
CC: Curse
CD: Toad
CE: Break
CF: Death
D0: Warp
D1: Berserk
D2: Haste (Fast)
D3: Aura
D4: Cure
D5: Life
D6: Peep (Basuna)
D7: Heal (Esuna)
D8: Barrier
D9: Blink
DA: Safe
DB: Shell
DC: Wall
DD: Dispel
DE: Mini
DF: Mute
E0: Anti
E1: Fog
E2: Slow
E3: Change
E4: Fear
E5: Holy
E6: Exit
E7: Ultima