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Castlevania (NES, Famicom Disk System)/RAM map: Difference between revisions

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{| border="1" cellpadding="1"
{| border="1" cellpadding="1"
|'''RAM'''  || '''Function''' || '''Details'''
|'''RAM'''  || '''Function''' || '''Details'''
|-
|0x0004 || RNG || Changes seemingly randomly.
|-
|0x0007 || Title Bat Current sprite || May be used by something else.
|-
|-
|0x001A || Timer || Increments by 1 each frame. Resets each time you "change stage?"
|0x001A || Timer || Increments by 1 each frame. Resets each time you "change stage?"
|-
|-
|0x001E || Title Screen timer(time until attract mode) || Counts down from FF to 00.
|0x001E || Title Screen timer (time until demo mode) || Counts slowly (each 8 frames) up to 11 (until castle bat becomes close),
 
then (each frame) down from FF to 00.
|-
|-
|0x0022 || Paused || $01 = yes
|0x0022 || Paused || $01 = yes

Revision as of 19:34, 11 February 2018

Chip tiny.png The following article is a RAM map for Castlevania (NES, Famicom Disk System).

So very stubbly.
This page is rather stubbly and could use some expansion.
Are you a bad enough dude to rescue this article?


RAM Function Details
0x0004 RNG Changes seemingly randomly.
0x0007 Title Bat Current sprite May be used by something else.
0x001A Timer Increments by 1 each frame. Resets each time you "change stage?"
0x001E Title Screen timer (time until demo mode) Counts slowly (each 8 frames) up to 11 (until castle bat becomes close),

then (each frame) down from FF to 00.

0x0022 Paused $01 = yes
0x0028 Current Stage
0x002A Number of Lives
0x002E Camera's X position
0x003E Is Simon on stairs $00 = yes, $01 = no
0x003F Simon's Y position (in level)
0x0040 Simon's X position (in level)
0x0042 1's and 10's place of Time in BCD
0x0043 100's and 1000's place of Time in BCD
0x0044 Life Meter (Graphic) 2 bars = +$08, Max = $40(64)
0x0045 Life Meter (Actual) 2 bars = +$08, Max = $40(64)
0x0070 Whip length Set to $00, $01, or $02.
0x0071 Number of Hearts $00 to $63 (99 in decimal).
0x00F7 Player 1 Controller Similar to Metroid's 0x0014.
0x0159 Simon's current image

(unknown use : dosen't seem to affect gameplay)

$00=standing,

$01-03 = walk,

$04 = jump and crouch,

$05-07 = whip/sub-weapon,

$0D-0E = walk up stairs,

$0F-10 = walk down stairs,

$12 = hurt

$1C = dead

$1D = collapsing

0x0160 Simon's screen position (in room)
0x0162 Simon's screen position (in room) not 0x0160.
0x038C Simon's X position (in screen)
0x0390 Enemy 1's X position (in screen)
0x0391 Enemy 2's X position (in screen)
0x0392 Enemy 3's X position (in screen)
0x0393 Boss 1?'s X position (in screen)
0x0395 Bat/Medusa Head 1's X position (in screen) Is it only those two?
0x0396 Bat/Medusa Head 2's X position (in screen)
0x0397 Bat/Medusa Head 3/Drac's Top Fireball's X position (in screen)
0x0398 Bat/Medusa Head 4/Drac's Middle Fireball's X position (in screen)
0x0399 Bat/Medusa Head 5/Drac's Bottom Fireball's X position (in screen)
0x03A0 Sub-weapon 1's X position (in screen)
0x0450 Direction Simon looks $00 = right, $01 = left
0x0584 Simon's state $00 = standing, $01 = going right, $02 = going left, etc.