|
|
| Ultimate-II / II+ / U64 Memory Map |
|
|
| Global: |
|
|
| 00000000-01FFFFFF 32 MB RAM (U2) |
| 02000000-03FFFFFF 32 MB RAM (U2+ / U64) |
| 04000000-040FFFFF 1 MB I/O space - common block ultimate_logic_32 |
| A0000000-A00FFFFF 1 MB I/O space - U2+ / U64 specific I/O |
|
|
| U2P+L / RiscV based products: |
|
|
| 00000000-07FFFFFF 128 MB RAM (U2+L) |
| 10000000-10FFFFFF 16 MB I/O space - common block ultimate_logic_32 |
|
|
|
|
| RAM Usage: |
| 00000000-00E9FFFF ~14.6 MB Application space (Code, Heap, Stack) |
| 00EA0000-00EA7FFF 32 KB -Reserved- |
| 00EA8000-00EAFFFF 32 KB Kernal replacement space (3x 8K ROM + 8K Shadow RAM) |
| 00EB0000-00EBFFFF 64 KB Drive B Sound samples |
| 00EC0000-00ECFFFF 64 KB Drive A Sound samples |
| 00ED0000-00EDFFFF 64 KB Drive B CPU space (RAM & ROM) |
| 00EE0000-00EEFFFF 64 KB Drive A CPU space (RAM & ROM) |
| 00EF0000-00EFFFFF 64 KB Cartridge RAM space |
| 00F00000-00FFFFFF 1 MB Cartridge ROM space |
| 01000000-01FFFFFF 16 MB REU / GeoRAM space |
|
|
| U2+ / U64 only: |
| 02000000-02FFFFFF 16 MB RAM Disk (/temp) |
| 03000000-03FFFFFF 16 MB Reserved space for loading updater program |
|
|
| U64 only: |
| 08000000-0BFFFFFF 64 MB Reserved RAM (Currently Not implemented / Not mapped) |
|
|
| Note: |
| RAM Disk on U2 is allocated on the HEAP of the application and is only 3 MB in size. |
|
|
|
|
