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Line 65:
Line 65: − ==Old3DS== + + + + + + + + + + + + + + + − + − | 0x4000+ − | Data TCM (Mapped during bootrom)+ − |-+ − | 0xFFFF0000 − | 0x10000 − | Bootrom, the main region is at +0x8000, which is disabled during system boot. − |} − − ==New3DS== − {| class="wikitable" border="1" − |- − ! Address − ! Size − ! Description − |- − | 0x00000000 − | 0x08000000 − | Instruction TCM, repeating each 0x8000 bytes. − |- − | 0x01FF8000 − | 0x8000 − | Instruction TCM (Accessed by the kernel and process by this address) − − − − | Instruction TCM (Accessed by bootrom by this address) − |- − | 0x08000000 − | 0x00180000 − | ARM9-only internal memory − |- − | 0x10000000 − | 0x08000000 − − |- − | 0x18000000 − | 0x600000 − | VRAM − |- − | 0x1FF00000 − | 0x80000 − | DSP memory − |- − | 0x1FF80000 − | 0x80000 − | AXI WRAM − |- − | 0x20000000 − | 0x10000000 − | FCRAM + +
→ARM9 Physical memory regions
=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
|-
|-
| 0xFFF00000
| style="background: red" | No
| 0x28000000
| 0x8000000
| [[New_3DS]] FCRAM extension
|-
| 0x07FF8000
| 0x8000
| [[IO]] memory
|-
|-
| 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