en:docs:boot:memmap

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en:docs:boot:memmap [2013/03/12 02:08] – [After MBR] valeriusen:docs:boot:memmap [2014/05/21 20:52] (current) – external edit 127.0.0.1
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-==== Initial memory map ====+===== Initial memory map =====
  
 The standard PC has the following memory map: The standard PC has the following memory map:
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 |0x000400-0x0004FF     |BIOS Data Area               |Used by ROM BIOS| |0x000400-0x0004FF     |BIOS Data Area               |Used by ROM BIOS|
  
-=== After BIOS POST ===+==== After BIOS POST ====
  
 ^Addresses                     ^Name                               ^Description         ^ ^Addresses                     ^Name                               ^Description         ^
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 ^Addresses                     ^Name                                 ^Description                    ^ ^Addresses                     ^Name                                 ^Description                    ^
-|0×000000-0x0003FF      |Interrupt Vectors                |This memory used to control Inerrupts| +|0x000000-0x0003FF      |Interrupt Vectors                |This memory used to control Inerrupts| 
-|0×000400-0x0004FF      |BIOS Data Area                 |Used by ROM BIOS| +|0x000400-0x0004FF      |BIOS Data Area                 |Used by ROM BIOS| 
-|0×000500-0x0005FF      |Free                                    |Free, unused memory| +|0x000500-0x0005FF      |Free                                    |Free, unused memory| 
-|0×000600-0x0007FF      |MBR                                    |Master Boot Record| +|0x000600-0x0007FF      |MBR                                    |Master Boot Record| 
-|0×000800-0x007BFF      |Free                                    |Free, unused memory|+|0x000800-0x007BFF      |Free                                    |Free, unused memory|
 |0x007C00-0x007DFF     |Boot record                         |Boot Record loaded from boot sector of active partition| |0x007C00-0x007DFF     |Boot record                         |Boot Record loaded from boot sector of active partition|
 |0x007E00-0x007FFF      |Boot record Work area       |This area was used as Boot Record work area| |0x007E00-0x007FFF      |Boot record Work area       |This area was used as Boot Record work area|
-|0×008000-(MuFSDStart-1) |Free                                |Free, unused memory|+|0x008000-(MuFSDStart-1) |Free                                |Free, unused memory|
 |MuFSDStart-MuFSDEnd     |MicroFSD                        |MicroFSD/BlackBox code| |MuFSDStart-MuFSDEnd     |MicroFSD                        |MicroFSD/BlackBox code|
 |(MuFSDEnd+1)-0x09FFFF  |Free Conventional memory |RAM, which can be used by user| |(MuFSDEnd+1)-0x09FFFF  |Free Conventional memory |RAM, which can be used by user|
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 |0x0E0000-0x0FFFFF        |BIOS                                 |PC BIOS ROM| |0x0E0000-0x0FFFFF        |BIOS                                 |PC BIOS ROM|
  
-MuFSDStart=0×008000 or 0×090000. Now we use 0×090000 as LILO does but have a plan to use 0×008000 for more compact memory reuse and less possibility of overlapping.+MuFSDStart=0x008000 or 0x090000. Now we use 0x090000 as LILO does but have a plan to use 0x008000 for more compact memory reuse and less possibility of overlapping.
  
-MuFSDEnd is (0×008000+MicroFSD_file_length-1)+MuFSDEnd is (0x008000+MicroFSD_file_length-1)
  
 ==== After MicroFSD/BlackBox ==== ==== After MicroFSD/BlackBox ====
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 Memory map after L4Ka:Kickstart work known to microkernel via Kernel Interface Page. Other tasks has access to memory via sigma0 server. Strating from this point all memory operation controlled by L4 microkernel. Memory map after L4Ka:Kickstart work known to microkernel via Kernel Interface Page. Other tasks has access to memory via sigma0 server. Strating from this point all memory operation controlled by L4 microkernel.
  
-=== Discussion ===+~~DISCUSSION~~