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Life Force/RAM map
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Table
| RAM | Information |
|---|---|
| 0x0023 | Demo Stage Num? |
| 0x0030 | ??? (Linked to stage, music theme?) |
| 0x0034 | P1 Lives |
| 0x0035 | P2 Lives |
| 0x0040 | Is Stage Vertical? (boolean) |
| 0x0070 | P1 Status
|
| 0x0071 | P2 Status (same values as P1) |
| 0x0076 | P1 Weapon
|
| 0x0077 | P2 Weapon (same values as P1) |
| 0x0078 | P1 Power Bar location (1=speed, 2=missile, etc) |
| 0x0079 | P2 Power Bar location |
| 0x007A | P1 Movement Counter?? |
| 0x007B | P2 Movement Counter?? |
| 0x007E | P1 Ship Flashing Counter |
| 0x007F | P2 Ship Flashing Counter |
| 0x0080 | P1 Speed (up to 6) |
| 0x0081 | P2 Speed |
| 0x0082 | P1 Shield Strength (starts at 5 hits) |
| 0x0083 | P2 Shield Strength |
| 0x0084 | P1 Frames of Invulnerability (starts at 128 when flying in) |
| 0x0085 | P2 Frames of Invulnerability |
| 0x0086 | P1 Missiles (two speeds) |
| 0x0087 | P2 Missiles |
| 0x008A | P1 Options (up to 2) |
| 0x008B | P2 Options |
| 0x0096-0x009D | Bullet ??? (affects the type and flight path?) (8 total slots, which match other "Bullet" memory offsets) |
| 0x00BE-0x00C5 | Bullet Speed |
| 0x00D6-0x00DD | Bullet ??? |
| 0x0304-0x030B | Bullet sprite number for animations |
| 0x030C-0x030D | Option sprite number for animations |
| 0x0311-0x0320 | Enemy sprite numbers for animations (16 total slots, which match other "Enemy" memory offsets) |
| 0x0325-0x032C | Bullet Y Positions |
| 0x032D-0x032E | Option Y Positions |
| 0x032F | P1 Y Position (unsigned, 24 to 197) |
| 0x0330 | P2 Y Position |
| 0x0333-0x0341 | Enemy Y Positions |
| 0x0346-0x034D | Bullet X Positions |
| 0x034E-0x034F | Option X Positions |
| 0x0350 | P1 X Position (unsigned, 15 to 232) |
| 0x0351 | P2 X Position |
| 0x0354-0x0362 | Enemy X Positions |
| 0x0374-0x0383 | Enemy palette scheme (01-04) |
| 0x0385-0x0394 | Enemy status
|
| 0x0396-0x03A5 | Enemy ??? (00 and 80) |
| 0x03A7-0x03B6 | Enemy ??? (00 and 80) |
| 0x03B8-0x03C7 | Enemy ??? (flight related?) |
| 0x03C9-0x03D8 | Enemy flight path (00 = straight, 80 = down-left, might have upper limit) |
| 0x03DA-0x03E9 | Enemy speed (signed; negative goes backwards) |
| 0x03EB-0x03FA | Enemy ??? |
| 0x03FC-0x040B | Enemy sprite offset? |
| 0x040D-0x041C | Enemy timer of some sort? |
| 0x07E4 | P1 Low Digits Score (hex value = literal decimal digits 5-6 in score, ie: 0x45 = 45 display in score, last digit 7 always 0) |
| 0x07E5 | P1 Mid Digits Score |
| 0x07E6 | P1 High Digits Score |
| 0x07E8 | P2 Low Digits Score |
| 0x07E9 | P2 Mid Digits Score |
| 0x07EA | P2 High Digits Score |
Functions
0x07:C345 Death (decrement life)