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https://github.com/emu-russia/pureikyubu.git
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c21147ccff
Docs: New TODO moved to EMU, old renamed to old_todo Docs: Old coding style is deprecated (old_style.txt) Docs: Removed mention about CubeDocumented and fixed old emails RE: boot.s, proved first asm line (lis instruction parameter) RE: Added PAL and NTSC Boot and IPL IDA files RE: Some work on NTSC IPL (identified many lib calls, including OS, GX) RE: Added EXI Bootrom descrambler by segher RE: GXInit RE: Internal GX lib structures (GXPrivate.h) RE: More details on lomem (OS versions) RE: OSInit and OS.c RE: OSAlloc (heap allocator) RE: Very first code of Metrowerk runtime (__start.c) Docs: Added copy of http://gcdev.narod.ru Source\Utils: Command processor (Cmd.c) Source\Utils: File wrapper Source\Utils: Gekko disasm cleaned up and ported to plain C Source\Utils: Double-linked lists Source\Utils: Ported old Profiler code Source\Utils: String utils
75 lines
3.2 KiB
Text
75 lines
3.2 KiB
Text
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==========
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OS LoMem
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==========
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based on Titanik's gcinfos1.txt
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0x80000000 + 256 bytes - OS low memory area (lomem)
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80000000 4 DiskID : GameName
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80000004 2 DiskID : Company
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80000006 1 DiskID : Disk number
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80000007 1 DiskID : Game version
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80000008 1 DiskID : Streaming 0 = audio streaming off
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80000009 1 DiskID : StreamBufSize
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8000000a 20 padding(0)
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80000020 4 Magic word (boot method : bootrom/JTAG) 'DISEASE' hehe
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80000024 4 Version
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80000028 4 Physical Memory Size (in bytes, usually 0x1800000)
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8000002C 4 Console type
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00000001 = Retail1 (OS_CONSOLE_RETAIL1)
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00000002 = Retail2 (OS_CONSOLE_RETAIL2)
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00000003 = Retail3 (OS_CONSOLE_RETAIL3)
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00000004 = Retail4 (OS_CONSOLE_RETAIL4)
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1XXXXXXX = Devkits and emulators (OS_CONSOLE_DEVELOPMENT)
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10000000 = Mac emulator (OS_CONSOLE_EMULATOR)
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10000001 = PC emulator (OS_CONSOLE_PC_EMULATOR)
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10000002 = "Arthur" (OS_CONSOLE_ARTHUR), test board
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10000003 = "Minnow" (OS_CONSOLE_MINNOW), test board
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10000004 = Devkit1 (OS_CONSOLE_DEVHW1)
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10000005 = Devkit2 (OS_CONSOLE_DEVHW2)
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10000006 = Devkit3 (OS_CONSOLE_DEVHW3)
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10000007 = Devkit4 (OS_CONSOLE_DEVHW4)
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80000030 4 ArenaLo
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80000034 4 ArenaHi
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80000038 4 FST Location in ram
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8000003C 4 FST Max Length
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800000C0 4 Current OS context (physical address)
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800000C4 4 Previous OS interrupt mask
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800000C8 4 OS interrupt mask
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800000CC 4 TV Mode
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0 = NTSC
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1 = PAL
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2 = DEBUG
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3 = DEBUG PAL
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4 = MPAL (Brasil)
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5 = PAL60
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800000D0 4 ARAM size (internal + expansion) in bytes
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800000D4 4 Current OS context
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800000D8 4 Default OS thread
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800000DC 8 Active threads queue
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+0 pointer to head thread
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+4 pointer to tail thread
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800000E4 4 Current OS thread
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800000F0 4 Simulated Memory Size (in bytes)
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800000F4 4 Pad Spec (?)
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800000F8 4 Bus clock fixed value (162000000 Hz)
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u32 __OSBusClock AT_ADDRESS(OS_BASE_CACHED | 0x00F8);
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800000FC 4 Core clock fixed value (486000000 Hz)
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u32 __OSCoreClock AT_ADDRESS(OS_BASE_CACHED | 0x00FC);
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0x80003000 - Secondary OS low memory area
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-------------------------------------------------------------------------------
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org -- ogamespec@gmail.com
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3 Sep 2015
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