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Mega Man 4/RAM map: Difference between revisions
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== Joypad Memory== | == Joypad Memory== | ||
<Br> | |||
'''RAM''' | '''RAM''' | ||
<Br> | |||
{| border="1" cellpadding="3" | {| border="1" cellpadding="3" | ||
| '''RAM''' || '''Function''' || ''' | | '''RAM''' || '''Function''' || '''Details''' | ||
|- | |- | ||
| $14 || Joypad 1 - Button Push Bits || Bits possible values : [0 = Not Recently Pushed Down, 1 = Recently Pushed Down] | | $14 || Joypad 1 - Button Push Bits || Bits possible values : [0 = Not Recently Pushed Down, 1 = Recently Pushed Down] | ||
| Line 15: | Line 15: | ||
|- | |- | ||
|} | |} | ||
< | <Br> | ||
::'''LSB to MSB''' | ::'''LSB to MSB''' | ||
::{| border="1" cellpadding="3" | ::{| border="1" cellpadding="3" | ||
| Line 28: | Line 28: | ||
| 3 || Up || 7 || A | | 3 || Up || 7 || A | ||
|- | |- | ||
|} | |||
<Br> | |||
== Sprite/Object Arrays== | |||
<Br> | |||
'''RAM''' | |||
<Br> | |||
{| border="1" cellpadding="3" | |||
| '''RAM''' || '''Function''' || '''Details''' || '''Value''' || '''Description''' | |||
|- | |||
| $300-$317 || Object ID || || || | |||
|- | |||
| $318-$32F || X Coordinate Ratio Counter || || || | |||
|- | |||
| $330-$347 || X Coordinate || || || | |||
|- | |||
| $348-$35F || X Screen (Level Screen) || || || | |||
|- | |||
| $360-$377 || Y Coordinate Ratio Counter || || || | |||
|- | |||
| $378-$38F || Y Coordinate || || || | |||
|- | |||
| $390-$3A7 || [[Y Screen]] || || || | |||
|- | |||
| $3A8-$3BF || Horizontal Speed Low || || || | |||
|- | |||
| $3C0-$3D7 || Horizontal Speed High || || || | |||
|- | |||
| $3D8-$3EF || Vertical Speed Low || || || | |||
|- | |||
| $3F0-$407 || Vertical Speed High || || || | |||
|- | |||
| $408-$41F || Substance and Shape || || || | |||
Object's Byte: | |||
MSB | |||
bit0: Substance (If Set, MM is damaged if hitting Object) | |||
bit1: Weapon damage | |||
If 0, Weapons are deflected (however, if the weapon is set to do no damage | |||
for that object, nothing happens.) | |||
If 1, Object is damaged by weapons (however, if the weapon is set to do no | |||
damage for that object, the weapon is deflected if object is set to | |||
visible with bit 5 of Sprite Flag (of 528). If it is invisible, | |||
nothing happen.) | |||
bit2-bit7 : Shape ID (Decides Height and Width setting of occupying space). | |||
LSB | |||
Megaman's byte in this array ($408) has no use, appearently. | |||
|- | |||
| $420-$437 || Direction Bits | |||
Object's Byte: | |||
MSB | |||
bit4: Up (Not neccesarily set when Jumping) | |||
bit5: Down (Not neccesarily set when falling from gravity.) | |||
bit6: Left | |||
bit7: Right | |||
LSB | |||
|- | |||
| $438-$44F || Enemy Number# of Level | |||
Useful to $FCBE to know which enemy to disable. | |||
|- | |||
| $450-$467 || Enemy HP | |||
|} | |} | ||
Revision as of 03:35, 12 July 2015
Joypad Memory
RAM
| RAM | Function | Details |
| $14 | Joypad 1 - Button Push Bits | Bits possible values : [0 = Not Recently Pushed Down, 1 = Recently Pushed Down] |
| $15 | Joypad 2 - Button Push Bits | Bits possible values : [0 = Not Recently Pushed Down, 1 = Recently Pushed Down] |
| $16 | Joypad 1 - Button Status Bits | Bits possible values : [0 = Not Being Pressed Down, 1 = Being Pressed Down] |
| $17 | Joypad 2 - Button Status Bits | Bits possible values : [0 = Not Being Pressed Down, 1 = Being Pressed Down] |
- LSB to MSB
Bit Function Bit Function 0 Right 4 Start 1 Left 5 Select 2 Down 6 B 3 Up 7 A
Sprite/Object Arrays
RAM
| RAM | Function | Details | Value | Description |
| $300-$317 | Object ID | |||
| $318-$32F | X Coordinate Ratio Counter | |||
| $330-$347 | X Coordinate | |||
| $348-$35F | X Screen (Level Screen) | |||
| $360-$377 | Y Coordinate Ratio Counter | |||
| $378-$38F | Y Coordinate | |||
| $390-$3A7 | Y Screen | |||
| $3A8-$3BF | Horizontal Speed Low | |||
| $3C0-$3D7 | Horizontal Speed High | |||
| $3D8-$3EF | Vertical Speed Low | |||
| $3F0-$407 | Vertical Speed High | |||
| $408-$41F | Substance and Shape |
Object's Byte: MSB bit0: Substance (If Set, MM is damaged if hitting Object) bit1: Weapon damage If 0, Weapons are deflected (however, if the weapon is set to do no damage for that object, nothing happens.) If 1, Object is damaged by weapons (however, if the weapon is set to do no damage for that object, the weapon is deflected if object is set to visible with bit 5 of Sprite Flag (of 528). If it is invisible, nothing happen.) bit2-bit7 : Shape ID (Decides Height and Width setting of occupying space). LSB Megaman's byte in this array ($408) has no use, appearently. | ||
| $420-$437 | Direction Bits
Object's Byte: MSB bit4: Up (Not neccesarily set when Jumping) bit5: Down (Not neccesarily set when falling from gravity.) bit6: Left bit7: Right LSB | |||
| $438-$44F | Enemy Number# of Level
Useful to $FCBE to know which enemy to disable. | |||
| $450-$467 | Enemy HP |