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Mach Rider/RAM map
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The following article is a RAM map for Mach Rider.
Zero Page
| Address | Entry size | # of entries | Description | Notes |
| $00 | 1 byte | 5 | Current score | Decimal digits |
| $08 | 2 bytes | 1 | X-position | Signed |
| $17 | 1 byte | 1 | Stage # | |
| $1E | 1 byte | 1 | Game Mode |
|
| $3F | 1 byte | 1 | Global timer | Runs while unpaused |
| $5C | 2 bytes | 1 | Energy | |
| $5F | 1 byte | 1 | Shot | |
| $60 | 2 bytes | 1 | To Go | Decimal digits |
| $62 | 1 byte | 1 | To Go (subunits) | Hexadecimal |
| $63 | 1 byte | 1 | Lives | |
| $70 | 1 byte | 1 | Game Over flag | |
| $71 | 1 byte | 1 | Power-up flag | |
| $0780 | 1 byte | 6 | # of each car color destroyed | |
| $0786 | 1 byte | 6 | # of each car color blocked | |
| $078C | 1 byte | 1 | Middle-of-road barrels destroyed | |
| $078D | 1 byte | 1 | Floating orbs destroyed | |
| $078E | 1 byte | 1 | Side-of-road barrels destroyed | |
| $0794 | 5 bytes | 3 | Top Score for each game mode | Decimal digits |