Difference between revisions of "RAM: Bank 0x7E: Page 0x01"

Revision as of 04:00, 21 December 2016

This is a subpage of RAM

This is beyond direct page and you can assume that all addresses here are $7EXXXX until you reach bank $7F.

• $0100[0x02] - Numerical index that controls the graphics that are blitted for Link during VRAM. See DMA variables for additional info.

• $0102[0x02] - See DMA Variables
• $0104[0x02] - See DMA Variables
• $0106[0x01] - free ram?
• $0107[0x02] - See DMA Variables
• $0109[0x01] - See DMA Variables
• $010A[0x01] - Set to nonzero when Link incurs death. Used if the player saved and continued (or just continued) after dying, indicating that the loading process will be slightly different.
• $010B[0x01] - free ram?
• $010C[0x02] - Temporary storage for a module number. Example: If we're in Overworld mode (0x09) and have to display a textbox (module 0x0E), 0x09 gets saved to this location on a temporary basis. Once the textbox disappears this module will be resumed.
• $010E[0x02] - (Dungeon) gives the entrance index of the current dungeon
• $0110[0x02] - In the context of loading dungeon rooms, contains the index of the room (see $A0) multiplied by 3. Allows for indexing into 24bit pointer address tables.
• $0112[0x02] - Apparently a flag indicating the bombos medallion is falling. Stops the Menu from being dropped down too. It seems to work as a flag for any general extended animation that is currently in progress.
• $0114[0x02] - Value of the type of tile Link is currently standing on. Only the lower byte is used.
• $0116[0x02] - Used with routine $008CB0 to transfer 0x0800 bytes from $7E1000 to a variable location (determined by this memory location)
• $0118[0x02] - Local portion of an address used to transfer data from $7FXXXX to vram whenever variable $19 is nonzero.
• $011A[0x02] - BG1 Y Offset. Gets applied to $0124. Can be used in quakes/shaking
• $011C[0x02] - BG1 X Offset. Gets applied to $0120

These are extra buffers for the scroll variables in addition to the $E0,...,$EA registers earlier

• $011E[0x02] - BG2 Horizontal Scroll Register ($210F)
• $0120[0x02] - BG1 Horizontal Scroll Register ($210D)
• $0122[0x02] - BG2 Vertical Scroll Register ($2110)
• $0124[0x02] - BG1 Vertical Scroll Register ($210E)

• $0126[0x01] - Seems to be used during dungeon screen transitions as some sort of counter.
• $0127[0x01] - free ram
• $0128[0x01] - ???? Seen as 0xFF during the history sequence. When set to 0xFF, the IRQ routine will disable the IRQ routine the next time it executes by writing 0x81 to $4200.
• $0129[0x01] - free ram
• $012A[0x01] - Seems to be a flag for the crystal sequence scripting. As long as this flag is set, the sequence progresses. Also used for the Triforce sequences. Triggers a subsection of the NMI routine.
• $012B[0x01] - free ram

• $012C[0x01] - Music control
  • 0x01 = Triforce opening
  • 0x02 = light world
  • 0x03 = legend theme
  • 0x04 = bunny link
  • 0x05 = lost woods
  • 0x06 = legend theme
  • 0x07 = kakariko village
  • 0x08 = mirror warp
  • 0x09 = dark world
  • 0x0A = restoring the master sword
  • 0x0B = faerie theme
  • 0x0C = chase theme
  • 0x0D = dark world (skull woods)
  • 0x0E = game theme (Overworld only?)
  • 0x10 = hyrule castle
  • 0x13 = fanfare
  • 0x15 = boss theme
  • 0x16 = dark world dungeon
  • 0x17 = fortune teller
  • 0x18 = caves
  • 0x19 = sentiment of hope
  • 0x1A = crystal theme
  • 0x1B = faerie theme w/ arpeggio
  • 0x1C = fear & anxiety
  • 0x1D = Agahnim unleashed
  • 0x1E = surprise!
  • 0x1F = Ganondorf the Thief
  • 0x20 = nothing
  • 0x21 = Agahnim unleashed
  • 0x22 = surprise!
  • 0x23 = Ganondorf the Thief
  • 0xF1 = fade out
  • 0xF2 = half volume
  • 0xF3 = full volume
  • 0xFF = Load a new set of music.

• $012D[0x01] - (Sound) Ambient Sound effects
  • 0x05 - Silence
  • 0x07 - Rumbling Sound? (Seems fairly certain)
  • 0x11 - Prayer in the Desert (Sounds a bit like Sanctuary theme)
  • 0x12 - Alternate "Prayer in the desert", or maybe one part of the harmony.
  • 0x15 - Door to Triforce room opens

• $012E[0x01] - (Sound) Sound Effects 1
  • 0x00: none (no change)
  • 0x01: small sword swing 1 (Fighter Sword)
  • 0x02: small sword swing 2 (Fighter Sword)
  • 0x03: medium sword swing 1 (Master Sword and up)
  • 0x04: fierce sword swing 2 (Master Sword and up)
  • 0x05: object clinking against the wall
  • 0x06: object clinking Link's shield or a hollow door when poked
  • 0x07: shooting arrow (or red Goriyas shooting fireballs)
  • 0x08: arrow hitting wall
  • 0x09: really quiet sound
  • 0x0A: hookshot cranking
  • 0x0B: door shutting
  • 0x0C: loud thud / heavy door shutting
  • 0x0D: magic powder noise
  • 0x0E: fire rod being fired
  • 0x0F: ice rod being fired
  • 0x10: hammer being used?
  • 0x11: hammer pounding down stake
  • 0x12: really familiar but can't place it exactly
  • 0x13: playing the flute
  • 0x14: Link picking something small up?
  • 0x15: Weird zapping noise
  • 0x16: Link walking up staircase 1
  • 0x17: Link walking up staircase 2 (finishing on next floor)
  • 0x18: Link walking down staircase 1
  • 0x19: Link walking down staircase 2 (finishing on next floor)
  • 0x1A: Link walking through grass?
  • 0x1B: sounds like a faint splash or thud
  • 0x1C: Link walking in shallow water
  • 0x1D: picking an object up
  • 0x1E: some sort of hissing (walking through grass maybe?)
  • 0x1F: object smashing to bits
  • 0x20: item falling into a pit
  • 0x21: sounds like a plop on wood, can't remember where it gets used
  • 0x22: loud thunderous noise
  • 0x23: pegasus boots slippy sound
  • 0x24: Link making a splash in deep water (but having to come back out)
  • 0x25: Link walking through swampy water
  • 0x26: Link taking damage
  • 0x27: Link passing out
  • 0x28: item falling onto shallow water
  • 0x29: rupees refill sound
  • 0x2A: whiffy sound
  • 0x2B: low life warning beep
  • 0x2C: pulling master sword out
  • 0x2D: taking magic power damage from enemy
  • 0x2E: Seems like a sound related to Ganon's Tower opening
  • 0x2F: Seems like a sound related to Ganon's Tower opening
  • 0x30: chicken getting owned
  • 0x31: big faerie healing your wounds
  • 0x32: sounds familiar but can't place it. Whooshing noise
  • 0x33: cheesy noise that happens when Agahnim makes chicks disappear
  • 0x34: cheesy noise that happens when Agahnim makes chicks disappear
  • 0x35: faint rumbling noise
  • 0x36: faint rumbling noise
  • 0x37: spin attack has powered up
  • 0x38: swimming noise
  • 0x39: thunderous noise while Ganon's tower opens
  • 0x3A: some kind of clinky hit
  • 0x3B: sounds like magic powder but unfamiliar
  • 0x3C: Error noise
  • 0x3D: something big falling into water? (Argghus?)
  • 0x3E: playing the flute (quieter)
  • 0x3F: magic powder

• $012F[0x01] - (Sound) Sound Effects 2
  • 0x00: none (no change)
  • 0x01: master sword beam
  • 0x02: unintelligble switch noise
  • 0x03:  ????? yet another loud thud
  • 0x04: Nutcase soldier getting pissed off
  • 0x05: shooting a fireball (Lynel)
  • 0x06:  ?????
  • 0x07: giant metal balls coming out of nodes
  • 0x08: normal enemy taking a big hit
  • 0x09: normal enemy dying
  • 0x0A: collecting rupee
  • 0x0B: collecting single heart
  • 0x0C: text scrolling flute noise
  • 0x0D: single heart filling in on HUD
  • 0x0E: sound of a chest being opened
  • 0x0F: you got an item sound 1
  • 0x10: switching to map sound effect
  • 0x11: menu screen going down
  • 0x12: menu screen going up
  • 0x13: throwing an item
  • 0x14: clink (not sure what it's used for)
  • 0x15: loud thud 1
  • 0x16: loud thud 2
  • 0x17: rats
  • 0x18: dragging something
  • 0x19: zora shooting fireball
  • 0x1A: minor puzzle solved
  • 0x1B: major puzzle solved
  • 0x1C: doing minor damage to enemy
  • 0x1D: taking magic power damage from enemy
  • 0x1E: keese flitting around
  • 0x1F: Link squealing like a bitch when he falls into a hole
  • 0x20: switch menu item
  • 0x21: boss taking damage
  • 0x22: boss dying
  • 0x23: spin attack sound
  • 0x24: switching between different mode 7 map perspectives
  • 0x25: triggering a switch
  • 0x26: Agahnim's lightning
  • 0x27: Agahnim powering up an attack
  • 0x28: Agahnim / Ganon teleporting
  • 0x29: Agahnim shooting a beam
  • 0x2A: tougher enemy taking damage.
  • 0x2B: Link getting electromucuted
  • 0x2C: bees buzzing
  • 0x2D: Major achievement completed (e.g. getting a piece of heart)
  • 0x2E: Major item obtained (e.g. Pendant or Heart Container)
  • 0x2F: obtained small key
  • 0x30: blob popping out of ground
  • 0x31: Moldorm's weird track like noise
  • 0x32: bouncing off a bungie
  • 0x33: short unknown jingle
  • 0x34: Sounds like defunct version of sound 0x35 below. Seems to be unused.
  • 0x35: Sound that plays in response to picking up a heart container during a boss fight.
  • 0x36: Sound of a beam being fired (Mothula, Wizzrobes, etc).
  • 0x37: Neat sound... consider using as a confirmation (though make sure it's not buggy)
  • 0x38: ...
  • 0x39: ...
  • 0x3C: Obtained mid level item (e.g. bombs from a chest)
  • 0x3D: ...
  • 0x3F: More minor fanfares

• $0130[0x01] - Something to do with SPC, exact usage is not clear.
• $0131[0x01] - Something to do with SPC, exact usage is not clear.
• $0132[0x01] - Buffer for playing songs. Put a value here to try to play a song. (Will try to write to $012C)
• $0133[0x01] - Something to do with SPC, exact usage is not clear.
• $0134[0x02] - VRAM target address for animated tiles. Usually $3B00 or $3C00. Remember that if you were to look this stuff up in Geiger's debugger the byte addresses would actually be $7600 and $7800. SNES VRAM addresses are expressed as words addresses internally, you just have to deal with it unfortunately.
• $0136[0x01] - Flag that toggles when different sets of musical tracks are loaded. I think the two track sets are normal outdoor and the ending tracks.
• $0137[0xC9] - Normal (Non-IRQ) Stack

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