Total size of SRAM used by the game is 858 bytes ($70:0000 - $70:0359).
Each file uses 143 bytes, with the last two being the checksum complement (or whatever it's called).
Data of file A: $70:0000 - $70:008E
Data of file B: $70:008F - $70:011D
Data of file C: $70:011E - $70:01AC
Copy of file A: $70:01AD - $70:023B
Copy of file B: $70:023C - $70:02CA
Copy of file C: $70:02CB - $70:0359
| Address | Size | Mirrors | Type | Quick Description |
|---|---|---|---|---|
| $70:0000 | 96 bytes | $7E:1EA2 | MARIO A | Overworld level setting flags. |
| $70:0060 | 15 bytes | $7E:1F02 | MARIO A | Overworld event flags, bitwise. |
| $70:006F | 1 byte | $7E:1F11 | MARIO A | Current submap for Mario. |
| $70:0070 | 1 byte | $7E:1F12 | MARIO A | Current submap for Luigi. |
| $70:0071 | 4 bytes | $7E:1F13 | MARIO A | Player animation on the overworld |
| $70:0075 | 2 bytes | $7E:1F17 | MARIO A | Overworld X position of Mario. |
| $70:0077 | 2 bytes | $7E:1F19 | MARIO A | Overworld Y position of Mario. |
| $70:0079 | 2 bytes | $7E:1F1B | MARIO A | Overworld X position of Luigi. |
| $70:007B | 2 bytes | $7E:1F1D | MARIO A | Overworld Y position of Luigi. |
| $70:007D | 2 bytes | $7E:1F1F | MARIO A | Pointer to Mario's overworld X position. |
| $70:007F | 2 bytes | $7E:1F21 | MARIO A | Pointer to Mario's overworld Y position. |
| $70:0081 | 2 bytes | $7E:1F23 | MARIO A | Pointer to Luigi's overworld X position. |
| $70:0083 | 2 bytes | $7E:1F25 | MARIO A | Pointer to Luigi's overworld Y position. |
| $70:0085 | 4 bytes | $7E:1F27 | MARIO A | Switch block flags (Green, Yellow, Blue and Red). |
| $70:0089 | 3 bytes | $7E:1F2B | MARIO A | Empty. Cleared at reset and titlescreen load. |
| $70:008C | 1 byte | $7E:1F2E | MARIO A | Number of events triggered. |
| $70:008D | 2 bytes | N/A | MARIO A | Checksum complement. |
| $70:008F | 96 bytes | $7E:1EA2 | MARIO B | Overworld level setting flags. |
| $70:00EF | 15 bytes | $7E:1F02 | MARIO B | Overworld event flags, bitwise. |
| $70:00FE | 1 byte | $7E:1F11 | MARIO B | Current submap for Mario. |
| $70:00FF | 1 byte | $7E:1F12 | MARIO B | Current submap for Luigi. |
| $70:0100 | 4 bytes | $7E:1F13 | MARIO B | Player animation on the overworld |
| $70:0104 | 2 bytes | $7E:1F17 | MARIO B | Overworld X position of Mario. |
| $70:0106 | 2 bytes | $7E:1F19 | MARIO B | Overworld Y position of Mario. |
| $70:0108 | 2 bytes | $7E:1F1B | MARIO B | Overworld X position of Luigi. |
| $70:010A | 2 bytes | $7E:1F1D | MARIO B | Overworld Y position of Luigi. |
| $70:010C | 2 bytes | $7E:1F1F | MARIO B | Pointer to Mario's overworld X position. |
| $70:010E | 2 bytes | $7E:1F21 | MARIO B | Pointer to Mario's overworld Y position. |
| $70:0110 | 2 bytes | $7E:1F23 | MARIO B | Pointer to Luigi's overworld X position. |
| $70:0112 | 2 bytes | $7E:1F25 | MARIO B | Pointer to Luigi's overworld Y position. |
| $70:0114 | 4 bytes | $7E:1F27 | MARIO B | Switch block flags (Green, Yellow, Blue and Red). |
| $70:0118 | 3 bytes | $7E:1F2B | MARIO B | Empty. Cleared at reset and titlescreen load. |
| $70:011B | 1 byte | $7E:1F2E | MARIO B | Number of events triggered. |
| $70:011C | 2 bytes | N/A | MARIO B | Checksum complement. |
| $70:011E | 96 bytes | $7E:1EA2 | MARIO C | Overworld level setting flags. |
| $70:017E | 15 bytes | $7E:1F02 | MARIO C | Overworld event flags, bitwise. |
| $70:018D | 1 byte | $7E:1F11 | MARIO C | Current submap for Mario. |
| $70:018E | 1 byte | $7E:1F12 | MARIO C | Current submap for Luigi. |
| $70:018F | 4 bytes | $7E:1F13 | MARIO C | Player animation on the overworld |
| $70:0193 | 2 bytes | $7E:1F17 | MARIO C | Overworld X position of Mario. |
| $70:0195 | 2 bytes | $7E:1F19 | MARIO C | Overworld Y position of Mario. |
| $70:0197 | 2 bytes | $7E:1F1B | MARIO C | Overworld X position of Luigi. |
| $70:0199 | 2 bytes | $7E:1F1D | MARIO C | Overworld Y position of Luigi. |
| $70:019B | 2 bytes | $7E:1F1F | MARIO C | Pointer to Mario's overworld X position. |
| $70:019D | 2 bytes | $7E:1F21 | MARIO C | Pointer to Mario's overworld Y position. |
| $70:019F | 2 bytes | $7E:1F23 | MARIO C | Pointer to Luigi's overworld X position. |
| $70:01A1 | 2 bytes | $7E:1F25 | MARIO C | Pointer to Luigi's overworld Y position. |
| $70:01A3 | 4 bytes | $7E:1F27 | MARIO C | Switch block flags (Green, Yellow, Blue and Red). |
| $70:01A7 | 3 bytes | $7E:1F2B | MARIO C | Empty. Cleared at reset and titlescreen load. |
| $70:01AA | 1 byte | $7E:1F2E | MARIO C | Number of events triggered. |
| $70:01AB | 2 bytes | N/A | MARIO C | Checksum complement. |
| $70:01AD | 143 bytes | $70:0000 | Copy | Contains a copy of "MARIO A" file, after saving. Last two bytes represent the checksum complement. |
| $70:023C | 143 bytes | $70:008F | Copy | Contains a copy of "MARIO B" file, after saving. Last two bytes represent the checksum complement. |
| $70:02CB | 143 bytes | $70:011E | Copy | Contains a copy of "MARIO C" file, after saving. Last two bytes represent the checksum complement. |