Plaid World notes

Flute X/Y coordinate mapped to underworld:
------------------------------------------
1: 13 = trock pokies 1 (dm)
2: 26 = above hookshot (pot shop) | transition down, then up, then down again to fix screen
3: 31 = hera beetle room (kakariko) |
4: 54 = sociable firebar (link's house)
5: 57 = skull bk (below eastern overworld)
6: 70 = some sewer room (desert)
7: 73 = desert big chest (swamp)
8: 77 = hera entrance (hylia)

Memory address span for each row in Plaid (BG2):
------------------------------------------------
- $0x = $7F:2000-$7F:3000 (normal tilemap - you will be in-bounds if in sync)
- $1x and onwards you add $1000 for each row.
- For $Ex and $Fx it's wrapped around to $7E:0000 and $7E:1000.

Related memory addresses from the disassembly (not including $Ex and $Fx row cus that's basically the main RAM and is used for everything):

#######
# $0x #
#######

$7F2000[0x1000] - (Dungeon)

     BG2 tile attribute table - (after the level/room has loaded), tile information for the room/map.
     In particular tells the game how to handle each 8x8 tile.
     For example, a chest will have the value 0x58 (or something similar) in 4 different locations, interlaced of course.

#######
# $1x #
#######

$7F3000[0x1000] - Tile Attribute table for BG1. Same as $7F2000 but for a different background.

#######
# $2x #
#######

$7F4000[0x800] - Decompression buffer for.... sprite stats and perhaps other
                 crap too.

#######
# $3x #
#######

$7F5000[0x800] - free ram

$7F5800[0x0C] - (HappinessPondRupees)

    Y speed of rupee.

$7F580A[0x0C] - (HappinessPondRupees)

    X speed of rupee.

$7F5818[0x0C] - (HappinessPondRupees)

    Z speed of rupee.

$7F5824[0x0C] - (HappinessPondRupees)

    Low byte of rupee's Y coordinate.

$7F5830[0x0C] - (HappinessPondRupees)

    High byte of rupee's Y coordinate.

$7F583C[0x0C] - (HappinessPondRupees)

    Low byte of rupee's X coordinate.

$7F5848[0x0C] - (HappinessPondRupees)

    High byte of rupee's X coordinate.

$7F5860[0x0C] - (HappinessPondRupees)

    Countdown autotimer.

$7F586C[0x0C] - (HappinessPondRupees)

    Indicates whether this rupee is active or not.

$7F586E[0x02] - (HappinessPondRupees)

    Mysteriously unallocated... there's a gap

$7F587A[0x0C] - (HappinessPondRupees)

    Animation index for splash state of the rupee.

$7F5886[0x0C] - (HappinessPondRupees)

    Subpixel portion of rupee's Y coordinate.

$7F5892[0x0C] - (HappinessPondRupees)

    Subpixel portion of rupee's X coordinate.

$7F589E[0x0C] - (HappinessPondRupees)

    Subpixel portion of rupee's Z coordinate.

$7F58AA[0x0C] - (HappinessPondRupees)

    0 - In item state.
    1 - In splash state.
    2 - Scheduled for deactivation.

$7F5817[0x08] - (BreakTowerSeal)

    Low byte of Y coordinate of the crystals. Note that this has 8 entries,
    though only 7 crystals are in the game both plot-wise and in general.

$7F581F[0x08] - (BreakTowerSeal)

    High byte of Y coordinate of the crystals. Note that this has 8 entries,
    though only 7 crystals are in the game both plot-wise and in general.

$7F5827[0x08] - (BreakTowerSeal)

    Low byte of X coordinate of the crystals. Note that this has 8 entries,
    though only 7 crystals are in the game both plot-wise and in general.

$7F582F[0x08] - (BreakTowerSeal)

    High byte of X coordinate of the crystals. Note that this has 8 entries,
    though only 7 crystals are in the game both plot-wise and in general.

$7F5837[0x18] - (BreakTowerSeal)

    Animation index for the sparkles that are generated near the swirling
    crystals.

$7F584F[0x18] - (BreakTowerSeal)

    Low byte of Y coordinate for the sparkles that are generated near the
    swirling crystals.

$7F5867[0x18] - (BreakTowerSeal)

    High byte of Y coordinate for the sparkles that are generated near the
    swirling crystals.

$7F587F[0x18] - (BreakTowerSeal)

    Low byte of X coordinate for the sparkles that are generated near the
    swirling crystals.

$7F5897[0x18] - (BreakTowerSeal)

    High byte of X coordinate for the sparkles that are generated near the
    swirling crystals.

$7F58AF[0x18] - (BreakTowerSeal)

    Countdown timer for the sparkles generated near the swirling crystals.
    It's exact purpose is to provide the delay between changes of chr
    and property states for the crystals (See $7F5837)

$7F5934[0x01] - (BombosSpell)

    Overall state indicator for the Bombos Spell.
    Only takes on values 0 through 2, but needs more research to find out what
    they mean.

    0 - Spawning of flame columns as they expand out.
    1 - Wrap up flame column animation then transition to the blast phase.
    2 - Blast phase

$7F5935[0x10] - (BombosSpell)

    Animation index of Bombos blasts (explosions). Ranges from 0 to 8.
    8 indicates an inactive state waiting to be reset.

$7F5B00[0xA0]

    Array of sound settings for overworld areas. Each entry (byte) has the
    following format:

    aaaammmm

        aaaa - ambient sound effect number to play in that area ($012D).
        mmmm - song number to play in that area ($012C).

    This array is preloaded with differing values depending on which stage of
    the game you're in. The stages are determined by $7EF3C5.
    (See $3C5 in Zelda_3_SRM.log)

$7F5BA0[0x60] - free ram

#######
# $4x #
#######

$7F6000[0x1000] - enemy damage related

#######
# $5x #
#######

$7F7000[0x1C0] - Used to generate the hdma table that the intro and outro spotlight effect uses

$7F71C0[0x4A7] - text / dialogue pointers (all of them!). Each one is a 3 byte long pointer.

$7F7667[0x6719] - free ram

#############
# $6x - $Ax #
#############

$7F7667[0x6719] - free ram

#######
# $Bx #
#######

$7F7667[0x6719] - free ram

$7FDD80[0x200]

    Serves as a temporary buffer for storing a copy of the current palette buffer.
    Sometimes the contents of $7EC500 gets stored here, and other times it's $7EC300
    being preserved. The general idea here is that the game hopes to eventually
    (optionally) restore the palette to this set of colors later.

$7FDE00[0x180?] - ???

$7FDF80[0x0280] - (indoors) I think this is used to describe which rooms have had their sprites loaded (while in a dungeon)
$7FDF80[0x1000] - (outdoors) Memory region that indicates where sprites are in the currently loaded overworld map (which map16 tile they're on)

#######
# $Cx #
#######

$7FDF80[0x1000] - (outdoors) Memory region that indicates where sprites are in the currently loaded overworld map (which map16 tile they're on)

$7FE200 - ???

$7FEF80[0x200]

    death status for the overworld sprites?

#######
# $Cx #
#######

$7FEF80[0x200] - death status for the overworld sprites?

$7FF180[0x680] - free ram? Can't be 100% certain yet.

$7FF800[0x1E] - (Garnish)

    Mostly superficial graphical entities (hence, "Garnish"). The only one that
    is known to damage the player are the Ganon Bat Flames.

$7FF81E[0x1E] - (Garnish)

    Low byte of Y coordinate.

$7FF83C[0x1E] - (Garnish)

    Low byte of X coordinate.

$7FF85A[0x1E] - (Garnish)

    High byte of Y coordinate.

$7FF878[0x1E] - (Garnish)

    High byte of X coordinate.

$7FF896[0x1E] - (Garnish)

    Y velocity of object.

$7FF8B4[0x1E] - (Garnish)

    X velocity of object.

$7FF8D2[0x1E] - special animation unknown 3
$7FF8F0[0x1E] - special animation unknown 4

$7FF90E[0x1E] - (Garnish)

    Countdown timer. Most Garnish objects just self terminate once this
    counts down.

$7FF92C[0x1E] - (Garnish)

    The index of the object's parent sprite object, if applicable.

    Some garnish objects use this as the floor designator, but they are far
    in the minority. Most use $7FF968 instead.

$7FF94A[0x1E] - special animation unknown 5

$7FF968[0x1E] - (Garnish)

    Floor selector for garnish objects. Analogous to the the kinds of config
    data that Ancilla ( $0C7C, X ) and Sprite ( $0F20, X ) have.

    0 - BG2
    1 - BG1

$7FF986[0x1E] - special animation unknown 7
$7FF9A4[0x1E] - special animation unknown 8

$7FF9C2[0x10] - (Sprite, Garnish?)

    Sprite tile interaction value. Acquires its value from $0FA5.

$7FF9D2[0x2C] - Free ram?

$7FF9FE[0x1E] - (Garnish)

    special animation unknown B

$7FFA1C[0x10] - Array that seems to handle the objects you hold above your head?
$7FFA2C[0x10] -
$7FFA3C[0x10] - Indicates stunned and frozen sprite?
$7FFA4C[0x10] -
$7FFA5C[0x10] -
$7FFA6C[0x10] -
$7FFA7C[0x10] -
$7FFA8C[0x10] -
$7FFA9C[0x10] -
$7FFAAC[0x10] -
$7FFABC[0x10] -

    ????

$7FFACC[0x10] -
$7FFADC[0x10] -
$7FFAEC[0x10] - free ram?
$7FFAFC[0x10] - free ram?
$7FFB0C[0x10] - free ram?
$7FFB1C[0x10] - used, but unknown
$7FFBDC[0x10] - used, but unknown

; most of these seem to be referenced for Helmasaur King's tail (maybe other bosses too)

$7FFC00[??] - unknown
$7FFC80[??] - unknown

$7FFC9C[0x10?] - used, but unknown

$7FFD00[??] - unknown

$7FFD5C[0x01] - apparently Ganon related
$7FFD68[0x01] - apparently Ganon related

$7FFC00[0x0080] - unknown

$7FFC80[0x0080] - unknown

$7FFD00[0x0080] - unknown

$7FFD80[0x0080] - unknown

$7FFE00[0x0080] - (Statue Sentry)

    X coordinate high byte for laser sprites.

$7FFE80[0x0080] - (Statue Sentry)

    Y coordinate low byte for laser sprites.

$7FFF00[0x0080] - (Statue Sentry)

    Y coordinate high byte for laser sprites.

$7FFE00[0x0100] - (Lanmolas)

    Display of rock sprites, I think

$7FFF00[0x0100] - (Lanmolas)

    Lanmolas use it for display of its rock sprites, I think.