Remote linking to avatars
Do not link to Suikosource images on forums, webpages, or anyplace else. If you wish to use the images, place them in your own webspace. We do not allow you to use them from our server.
 |  |
| |
| System(s) |
Playstation, PSP, PSN (POPS) |
| Bug Type | Gameplay |
| Region Introduced |  |
| Patch Version | 2.01.065b |
The underlying cause of the bug is a simple programming error. There is a function that checks the bit flags that indicate a recipe has been given to Hai Yo. This is used when determining if it is appropriate for an enemy to drop a recipe, and is also checked to see if a recipe should appear in Rare Finds in a shop. Code for North American (NTSC/UC) version is shown below, with commentary that illuminates the problem. This code resides in /CDROM/150_BPRG/BUFF0/BP0_AFT.BIN.
RAM:8002DA18 bnez $a1, loc_8002DAB0 <- Check the item type for zero. RAM:8002DA1C move $v0, $0 RAM:8002DA20 addiu $v0, $a0, 0xFFC8 <-Essentially chop out the bottom of type-zero items by adding -0x38 RAM:8002DA24 andi $v0, 0xFF RAM:8002DA28 sltiu $v0, 0x10 <- If the result is a value less than 0x10, it's one of the recipes. RAM:8002DA2C beqz $v0, loc_8002DAAC <- Get out if it's not a recipe. RAM:8002DA30 andi $v0, $v1, 0xFF <- Clear out the high-order bits of the item index/digit. RAM:8002DA34 addiu $a1, $v0, 0xFFE1 <- Add -0x1F (-31)...this gives the recipe #, but it's wrong. It should be -32. RAM:8002DA38 bgez $a1, loc_8002DA44 <- This should always be true, given previous logic. RAM:8002DA3C move $v1, $a1 RAM:8002DA40 addiu $v1, $v0, 0xFFE8 RAM:8002DA44 RAM:8002DA44 loc_8002DA44: RAM:8002DA44 sra $s2, $v1, 3 <- Get the byte offset. RAM:8002DA48 move $v1, $s2 <- Save the byte offset. RAM:8002DA4C sll $v0, $v1, 3 <- This line and... RAM:8002DA50 subu $s2, $a1, $v0 <- This line establish the bit number within the byte. RAM:8002DA54 move $s3, $v1 <- Save the bit number. RAM:8002DA58 la $s1, sub_800D4CBC <- The next few lines are all debug prints. RAM:8002DA60 la $a0, aBitValDNoDShif RAM:8002DA68 move $a2, $s2 RAM:8002DA6C move $a3, $s3 RAM:8002DA70 lui $s0, 0x8004 RAM:8002DA74 jalr $s1 RAM:8002DA78 sw $s1, off_8003AEF0 RAM:8002DA7C sw $s1, off_8003AEF0 RAM:8002DA80 addu $s0, $s2, $s4 <-Adds the bit number to the flag address. Should be byte number. RAM:8002DA84 lui $a0, 0x8003 <-More debug print screen crap coming up. RAM:8002DA88 lbu $a1, 0x1E6($s0) <-Load the flag byte for printing. RAM:8002DA8C jalr $s1 RAM:8002DA90 la $a0, aFoodFlg8b RAM:8002DA94 lbu $v1, 0x1E6($s0) <-Load flag byte so bit within can be checked, this address will be wrong. RAM:8002DA98 nop RAM:8002DA9C srav $v1, $s3 <-Shift the flags by the byte number. Should be bit number, but even that's wrong. RAM:8002DAA0 andi $v1, 1 <-Clear all bits except the flag bit we want. RAM:8002DAA4 bnez $v1, loc_8002DAB0 <-Go to exit if found, return the 1 set below. RAM:8002DAA8 li $v0, 1 RAM:8002DAAC RAM:8002DAAC loc_8002DAAC: RAM:8002DAAC RAM:8002DAAC move $v0, $0 <-Otherwise, return not found (i.e., you can get the recipe in battle).
This routine will determine that Recipe #34 is handed into Hai Yo if the third byte's 5th bit is set. This actually indicates Recipe #21, which is the one the Land Sharks in the Two River Sewers drop. The exact same routine is duplicated for Recipes #1-24, which are a different item type, so a different subtrahend must be used. For whatever reason, the flags are set properly, but checking them is a mess.
| Acquired | Check Recipe Flag At | |||
|---|---|---|---|---|
| Recipe | Gotten How? | Byte | Bit | Actual Recipe |
| Recipe #1 (Tomago-Yaki) | (Event) Hai Yo joins | 1 | 0 | Recipe #9 |
| Recipe #2 (Tomato Soup) | (Event) Cook-off 1 | 2 | 0 | Recipe #17 |
| Recipe #3 (Ohitashi) | (Speak) Huan in Muse | 3 | 0 | Recipe #25 |
| Recipe #4 (Salad) | (Event) Hai Yo joins | 4 | 0 | Recipe #33 |
| Recipe #5 (Gyoza) | (Speak) Cook in Coronet Inn | 5 | 0 | Unknown Data |
| Recipe #6 (Chowder) | (Event) Hai Yo joins | 6 | 0 | Unknown Data |
| Recipe #7 (BBQ Meat Bun) | (Event) Hai Yo joins | 7 | 0 | Unknown Data |
| Recipe #8 (Buttered Clams) | (Event) Cook-off 2 | 0 | 1 | Recipe #2 |
| Recipe #9 (Fish Fry) | (Search) Kuskus bookshelf | 1 | 1 | Recipe #10 |
| Recipe #10 (Ice Cream) | (Event) Hai Yo joins | 2 | 1 | Recipe #18 |
| Recipe #11 (Quiche) | (Rare Find) Kuskus Item shop | 3 | 1 | Recipe #26 |
| Recipe #12 (Sandwich) | (Drop) Eagle Man, Kobold Forest | 4 | 1 | Recipe #34 |
| Recipe #13 (Meat Pie) | (Speak) Cook in Kobold Village Chief's tent | 5 | 1 | Unknown Data |
| Recipe #14 (Simmered Fish) | (Speak) Cook in Radat Tavern | 6 | 1 | Unknown Data |
| Recipe #15 (Fried Fish Balls) | (Event) Hai Yo joins | 7 | 1 | Unknown Data |
| Recipe #16 (Sunomono) | (Search) Lakewest, Shelf in Taki's house | 0 | 2 | Recipe #3 |
| Recipe #17 (Cake) | (Event) Cook-off 3 | 1 | 2 | Recipe #11 |
| Recipe #18 (Croquettes) | (Rare Find) Radat Item Shop | 2 | 2 | Recipe #19 |
| Recipe #19 (Pasta) | (Event) Cook-off 4 | 3 | 2 | Recipe #27 |
| Recipe #20 (Tempura) | (Speak) Cook in Greenhill Inn | 4 | 2 | Recipe #35 |
| Recipe #21 (Grilled Fish) | (Drop) Land Sharks in Two River Sewers | 5 | 2 | Unknown Data |
| Recipe #22 (Gratin) | (Event) Cook-off 6 | 6 | 2 | Unknown Data |
| Recipe #23 (Rice Omelet) | (Rare Find) Two River Item Shop | 7 | 2 | Unknown Data |
| Recipe #24 (Fried Rice) | (Event) Cook-off 5 | 0 | 3 | Recipe #4 |
| Recipe #25 (Pizza) | (Rare Find) Greenhill Item Shop | 1 | 3 | Recipe #12 |
| Recipe #26 (Teriyaki) | (Rare Find) Highway Village Item Shop | 2 | 3 | Recipe #20 |
| Recipe #27 (Tonkatsu) | (Event) Cook-off 8 | 3 | 3 | Recipe #28 |
| Recipe #28 (Curry Rice) | (Rare Find) Gregminster Item shop | 4 | 3 | Recipe #36 |
| Recipe #29 (Grilled Beef) | (Drop) Zombie Slug in Matilda Path | 5 | 3 | Unknown Data |
| Recipe #30 (Ramen) | (Event) Cook-off 7 | 6 | 3 | Unknown Data |
| Recipe #31 (Hamburger) | (Rare Find) Kobold Village Item Shop | 7 | 3 | Unknown Data |
| Recipe #32 (Obento) | (Speak) Kent's mother in Highway Village | 0 | 4 | Recipe #5 |
| Recipe #33 (Sushi) | (Event) Cook-off 10 | 1 | 4 | Recipe #13 |
| Recipe #34 (Japanese Stew) | (Drop) DoReMi Elves in Greenhill Forest Path | 2 | 4 | Recipe #21 |
| Recipe #35 (Full Course) | (Rare Find) Muse Item shop | 3 | 4 | Recipe #29 |
| Recipe #36 (Ghengis Khan) | (Drop) Highland Soldiers in Rockaxe | 4 | 4 | Recipe #37 |
| Recipe #37 (Steak) | (Search) Gorudo's room in Rockaxe | 5 | 4 | Unknown Data |
| Recipe #38 (Sashimi Combo) | (Event) Cook-off 11 | 6 | 4 | Unknown Data |
| Recipe #39 (Special Stew) | (Speak) Gremio in Gregminster | 7 | 4 | Unknown Data |
| Recipe #40 (Kaiseki Dinner) | (Event) Cook-off 12 | 0 | 5 | Recipe #6 |