Memory layout: Difference between revisions
| Line 65: | Line 65: | ||
=ARM9 Physical memory regions = | =ARM9 Physical memory regions = | ||
{| class="wikitable" border="1" | {| class="wikitable" border="1" | ||
|- | |- | ||
! Old 3DS | |||
! Address | ! Address | ||
! Size | ! Size | ||
! Description | ! Description | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x00000000 | | 0x00000000 | ||
| 0x08000000 | | 0x08000000 | ||
| Instruction TCM, repeating each 0x8000 bytes. | | Instruction TCM, repeating each 0x8000 bytes. | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x01FF8000 | | 0x01FF8000 | ||
| 0x8000 | | 0x8000 | ||
| Instruction TCM (Accessed by the kernel and process by this address) | | Instruction TCM (Accessed by the kernel and process by this address) | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x07FF8000 | | 0x07FF8000 | ||
| 0x8000 | | 0x8000 | ||
| Instruction TCM (Accessed by bootrom by this address) | | Instruction TCM (Accessed by bootrom by this address) | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x08000000 | | 0x08000000 | ||
| 0x00100000 | | 0x00100000 | ||
| ARM9-only internal memory | | ARM9-only internal memory | ||
|- | |- | ||
| style="background: red" | No | |||
| 0x08100000 | |||
| 0x00080000 | |||
| [[New_3DS]] ARM9-only extension | |||
|- | |||
| style="background: green" | Yes | |||
| 0x10000000 | | 0x10000000 | ||
| 0x08000000 | | 0x08000000 | ||
| [[IO]] memory | | [[IO]] memory | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x18000000 | | 0x18000000 | ||
| 0x600000 | | 0x600000 | ||
| VRAM | | VRAM | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x1FF00000 | | 0x1FF00000 | ||
| 0x80000 | | 0x80000 | ||
| DSP memory | | DSP memory | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x1FF80000 | | 0x1FF80000 | ||
| 0x80000 | | 0x80000 | ||
| AXI WRAM | | AXI WRAM | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0x20000000 | | 0x20000000 | ||
| 0x8000000 | | 0x8000000 | ||
| FCRAM | | FCRAM | ||
|- | |- | ||
| | | style="background: red" | No | ||
| 0x28000000 | |||
| 0x8000000 | |||
| [[New_3DS]] FCRAM extension | |||
| | |||
| | |||
| | |||
| [[ | |||
|- | |- | ||
| style="background: green" | Yes | |||
| 0xFFF00000 | | 0xFFF00000 | ||
| 0x4000 | | 0x4000 | ||
| Data TCM (Mapped during bootrom) | | Data TCM (Mapped during bootrom) | ||
|- | |- | ||
| style="background: green" | Yes | |||
| 0xFFFF0000 | | 0xFFFF0000 | ||
| 0x10000 | | 0x10000 | ||