Super Mario Bros. X Maps: A Comprehensive Look into the Game's RAM

When it comes to understanding the inner workings of Super Mario Bros., one of the most crucial aspects is the game's memory map. In this article, we'll delve into the intricacies of the Sound Effect Register 2 and 1, as well as other important registers that govern the gameplay mechanics.

The Sound Effect Register 2 (0x0400-0x041F) contains various sound effects used throughout the game, including coin collects, power-ups, and enemy movements. The Sound Effect Register 1 (0x0380-0x03FF) includes brick shattering sounds and Bowser's flames.

In addition to sound effects, the RAM map also stores information about air bubbles underwater, which are represented by a value in memory. This value indicates whether Mario is currently under water or not.

The Powerup Sprite Y (0x00BB) register determines the vertical position of power-ups on the screen, while the Player Y Pos On Screen (0x00B5) and Enemy Y Pos On Screen (0x00B6/A) registers store the corresponding values for Mario and enemies respectively. The Powerup Vertical Screen Position (same as player) register indicates the position of power-ups in relation to the player.

Another important aspect is the Hammer (0x04D0-0x04F3) and Coin (0x04E0, 0x04EC, 0x04F0) registers, which correspond to the last nine hitbox coordinates. When these values are not zero, it indicates that a hammer or coin has been collected.

The Powerup State/Heading (0x00B8) register stores information about Mario's power-up status, including whether he is currently moving right or not. The Fireball Drawn (0x04C8/C) register determines when fireballs are visible on the screen.

The Enemy Status Register (0x00C1-0x00FF) contains various flags that indicate the state of enemies on the screen. For example, a value of 0xFF will kill an enemy off, while values such as 0x84 and 0x20 indicate that a Koopa or BulletBill has been stomped.

The RAM map also includes information about lifts, including half-lifts (0x2B/0x2C) and static lifts (0x29). Long firebars (0x1F) are also represented in the map.

In addition to enemy movements, the RAM map stores information about power-up drawing (0x04C4), which indicates whether a power-up is currently visible on the screen. Other registers include values related to player x and y positions, as well as gravity acceleration (0x0709).

It's worth noting that this data is specific to the Japanese version of Lost Levels, also known as Super Mario Bros. JU (PRG0), and may not be applicable to other game dumps.

In conclusion, the RAM map for Super Mario Bros. X Maps provides a comprehensive overview of the game's memory layout, allowing developers and enthusiasts to gain a deeper understanding of the game's inner workings. By exploring these registers and their corresponding values, you can unlock new insights into the game's mechanics and develop custom hacks or mods that enhance your gaming experience.

Super mario bros x maps