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Mem Map Virtual

Steven Frank edited this page Jul 5, 2015 · 17 revisions

Virtual Memory Map

see also: Memory Map

0x00000000 ROM at 0x00000000, Domain 0 (unless patched!) (see also Mem MapROM and Mem MapROMOS
0x00800000
0x00F00000
ROM Extension at 0x00800000, Domain 0
...
0x01800000
0x0180FFFF
at 0x00013000, Domain 0
...
0x01A00000
0x01C1FFFF
ROM Jump Tables at 0x00002000, Domain 0, may get patched, sparse use
...
0x01D80000
0x01D9FFFF
Magic Pointer Table at 0x003AF000, Domain 0, may get patched, sparse use
...
0x01E00000
0x01EFFFFF
REx Jump Table at 0x007EE000, Domain 0, may get patched, sparse use
...
0x03500000
0x03CFFFFF
Mirror of ROM at 0x00000000, rw/ro, Domain 0
...
0x04000000
0x040FFFFF
Mirror of ROM start at 0x00000000, rw/ro, Domain 0
...
0x05000000
0x051FFFFF
Mirror of first half of Flash Bank 1 at 0x02000000, rw/rw, Domain 0
...
0x0C000000
0x0C000FFF
RAM, 1k rw/na blocks, Domain 0
0x0C000400 Kernel Stack, maps to 0x04004000
...
0x0C002000
0x0C008FFF
RAM, 1k rw/na blocks, Domain 0
0x0C002C00: IRQ Stack
0x0C003400: FIQ Stack
0x0C004000: svc Stack
0x0C004C00: Abort Stack
0x0C006000: Undef Stack
0x0C007400: User Stack
...
0x0C100000
0x0C125FFF
RAM, rw/rw, Domain 2
0x0C100000: Kernel Domain Heap Base
0x0C100800: gKernelArea, Kernel Globals Base (end = 0x0C107E14), many symbols available here! See: Memory Map Kernel Area
...
0x0C200000
0x0C205FFF
RAM, rw/rw, Domain 3
...
0x0C310000
0x0C328FFF
RAM, rw/rw, Domain 3, only 1k or 2k blocks
...
0x0C600000
0x0C675FFF
RAM, rw/rw, Domain 0
...
0x0C984000
0x0C984FFF
RAM, rw/rw, Domain 0, 2k block
...
0x0CA6b000
0x0CA8FFFF
RAM, rw/rw, Domain 0
...
0x0CC79000
0x0CCEDFFF
RAM, rw/rw, Domain 0
...
0x0CD58000
0x0CDFEFFF
RAM, rw/rw, Domain 0
...
0x0CE17000
0x0CE17FFF
RAM, rw/rw, Domain 0, 1k
...
0x0CE30000
0x0CE30FFF
RAM, rw/rw, Domain 0, 1k
...
0x0F000000
0x2FFFFFFF
hardware registers, maps to self, rw/rw, Domain 0 (see also: Mem MapIO
...
0x30000000 Flash Memory Bank 1 at 0x02000000, rw/ro, Domain 0
0x30400000
0x30700000
Flash Memory Bank 2 at 0x10000000, rw/ro, Domain 0
...
0x34000000 Flash Memory Bank 1 at 0x02000000, rw/rw, Domain 0
0x34400000
0x34700000
Flash Memory Bank 2 at 0x10000000, rw/rw, Domain 0
...
0x60000000 This area seems to be mapping Flash content into RAM (packages, large binaries, etc.)
...
0x9C000000
0x9FFFFFFF
maps to PCMCIA Control 0 at 0x3C000000, rw/rw, Domain 1
...
0xAC000000
0xAFFFFFFF
maps to PCMCIA Control 1 at 0x4C000000, rw/rw, Domain 1

End of MMU table. A physical device would have additional mappings for the virtual Screen Memory at 0xE0000000 and maybe others. If a ROM patch was applied, many entries in this table would be quite different.