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Mega Man 4/RAM map: Difference between revisions
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== Joypad Memory== | == Joypad Memory== | ||
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== Sprite/Object Arrays== | == Sprite/Object Arrays== | ||
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Revision as of 05:04, 12 July 2015
Joypad Memory
| 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 |
| $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 | |
| $420-$437 | Direction Bits | |
| $438-$44F | Enemy Number# of Level | Useful to $FC9E |
| $450-$467 | Enemy HP | |
| $468-47F | Object ASM Private Memory 1 | |
| $480-497 | Object ASM Private Memory 2 | |
| $498-4AF | Object ASM Private Memory 3 | |
| $4B0-$4C7 | Object ASM Private Memory 4 | |
| $4C8-$4DF | Object ASM Private Memory 5 | |
| $4E0-$4F7 | Object ASM Private Memory 6 | |
| $4F8-$50F | Object ASM Private Memory 7 | |
| $510-$527 | Object ASM Private Memory 8 | |
| $528-$53F | Sprite Flags | |
| $540-$557 | Sprite's Animation | |
| $558-$56F | Sprite ID | |
| $570-$587 | Animation Frame Counter | |
| $588-$59F | ASM - Low Address | |
| $5A0-$5B7 | ASM - High Address | |
| $5B8-$5CF | Invincibility Blink / Freeze Action Status | |
| $5D0-$5FF | Never used in entire game |