;
; MEMORY MAP
;
; Boot:
;
; 0:7C00->7CFF boot_code
;
; 0:9000 byte bits per pixel
; 0:9001 word scanline length
; 0:9008 word vesa video mode
; 0:900A word X res
; 0:900C word Y res
; 0:9010 byte mouse port - not used
; 0:9014 dword Vesa 1.2 pm bank switch
; 0:9018 dword Vesa 2.0 LFB address
; 0:901C byte 0 or 1 : enable MTRR graphics acceleration
; 0:901D byte not used anymore (0 or 1 : enable system log display)
; 0:901E byte 0 or 1 : enable direct lfb write, paging disabled
; 0:901F byte DMA write : 1=yes, 2=no
; 0:9020 8bytes pci data
; 0:9030 byte VRR start enabled 1, 2-no
; 0:9031 word IDEContrRegsBaseAddr
; 0x9040 - dword - entry point of APM BIOS
; 0x9044 - word - version (BCD)
; 0x9046 - word - flags
; 0:907F byte number of BIOS hard disks
; 0:9080 Nbytes BIOS hard disks
; 0:9100 word available physical memory map: number of blocks
; 0:9104 available physical memory map: blocks
;
; Runtime:
;
; 0x00000000 -> 0x7FFFFFFF application 2Gb
; 0x80000000 -> 0FFF physical page zero - do not write
; (used by int 13h in some configurations)
;
; 0x80001000 -> 2FFF window_data - 256 entries
;
; 0000 dword x start
; 0004 dword y start
; 0008 dword x size
; 000C dword y size
; 0010 dword color of work area
; 0014 dword color of grab bar
; 0018 dword color of frames
; 001C dword window flags, +30 = window drawn, +31 redraw flag
;
; 3000 -> 4FFF task list - 256 entries
;
; 00 dword process count
; 04 dword no of processes
; 10 dword base of running process at 0x3000+
;
; 20 dword application event mask
; 24 dword PID - process identification number
; 2a byte slot state: 0=running, 1,2=suspended
; 3=zombie, 4=terminate,
; 5=waiting for event, 9 = not used
; 2e byte window number on screen
; 30 dword exact position in memory
; 34 dword counter sum
; 38 dword time stamp counter add
; 3c dword cpu usage in cpu timer tics
;
;
; 5000 -> 53FF window stack C000 no of windows - all in words
; 5402 -> 57FF window position in stack
; 5800 -> 5fff << IDT for int_0x00..int_0x40 + reserv
; 6000 -> 68FF << free (2k5)
; 6900 -> 7EFF << saved picture under mouse pointer (1k5)
;
; 7F00 -> 7FFF << SB16_Status (256) \\
;
; 8000 -> 87FF free (2k)
; 0x80008000 -> 9FFF ramdisk fat (8k)
; A000 -> F9FF free (23k)
; FA00 byte no of keys in buffer
; FA01 byte 'buffer'
; FA02 -> FAFF reserved for keys
; FB00 byte no of buttons in buffer
; FB01 dword 'buffer'
; FB02 -> FBFF reserved for buttons
; FC00 -> FCFE com1/ps2 buffer
; FCFF com1/ps2 buffer count starting from FC00
; FD00 -> FDFF free (256)
; FE00 -> FE0F mouse memory 00 chunk count, that includes:
; FE08 word -- mouse H-scroll
; FE0A word -- mouse x
; FE0C word -- mouse y
; FE0E word -- mouse V-scroll
; FE10 -> FB17 mouse color mem
; FE21 x move
; FE22 y move
; FE28 high bits temp
; FE30 color temp
; FE40 byte buttons down
; FE44 byte 0 mouse down -> do not draw
; FE4A -> FE4D FE4A-B x-under - FE4C-D y-under
; FEB8 dword putpixel address
; FEBC dword getpixel address
; FEC1 byte bits per pixel
; FEC4 dword mouse appearance counter
; FEC8 dword x & y temp for windowmove
; FECC dword tsc / second
; FED0 dword screen x size
; FED4 dword screen y size
; FED8 dword screen y multiplier
; FEDC dword screen mode
; FEE4 dword PCIe extended (memory-mappable) config space - physical address
; FEE8 dword PCIe extended config space limit
; FEEC word number of 4M-pages needed to map PCIe config space
; FEEE word PCIe bus range (power-ow-two Mbytes)
; FEF0 dword physical address of user-accessible static system buffer
; FEF4 dword physical address of LFB
; FEF8 dword address of button list
; FEFC dword memory to use
; FF00 byte 1 = system shutdown request
; FF01 byte task activation request?
; FFE4 -> FFEF background info
; FFF0 byte >0 if redraw background request from app
; FFF1 byte >0 if background changed
; FFF2 write and read bank in screen
; FFF4 byte 0 if first mouse draw & do not return picture under
; FFF5 byte 1 do not draw pointer
; FFFF byte do not change task for 1/100 sec.
;
; 0x80010000 -> 6CBFF the kernel (up to 371 Kb)
; in the current version:
; -> 00B3C 16-bit code end
; -> 00C40 16-bit data end
; -> 105F0 32-bit code start
; -> 2C889 32-bit code end
; -> 2FC28..end_of_kernel zero-filled zone after preinit_mem
; -> 33563 uninitialized globals start
; -> 3B752 end_of_kernel
; -> 3C000 not used (>200k)
; 0x80050000 -> 090000 zero-filled zone after preinit_mem
; 0x8006CC00 -> 6DBFF stack at boot time (4Kb)
;
; 0x8006DC00 -> 6E5FF basic text font II
; 0x8006E600 -> 6Efff basic text font I
; 0x8006F000 -> 6FFFF main page directory
; 0x80070000 -> 7FFFF data of retrieved disks and partitions (Mario79)
; 0x80080000 -> 8FFFF additional app info, in 256 byte steps - 256 entries
;
; 00 11db name of app running
; 0x10 dword pointer to fpu save area
; 0x14 dword event count
; 0x18 dword user fpu exceptoins handler
; 0x1c dword user sse exceptions handler
; 20 dword PL0 stack base
; 24 dword user heap base
; 28 dword user heap top
; 2c dword window cursor handle
; 30 dword first event in list
; 34 dword last event in list
; 38 dword first kernel object in list
; 3c dword last kernel object in list
; 40 dword thread esp
; 44 dword io permission map page 0
; 48 dword io permission map page 1
; 4c dword debug state: 1= load debug registers
; 50 dword current directory ptr
; 54 dword wait timeout
; 58 dword thread TSS._esp0 (= pl0 stack base + size except for V86)
; 5C-7F unused
;
; 80 dword address of random shaped window area
; 84 byte shape area scale
; 88 dword free
; 8C dword application memory size
; 90 dword window X position save
; 94 dword window Y position save
; 98 dword window X size save
; 9C dword window Y size save
; A0 dword IPC memory start
; A4 dword IPC memory size
; A8 dword event bits: mouse, stack,..
; AC dword 0 or debugger slot
; B0 dword free
; B4 byte keyboard mode: 0 = keymap, 1 = scancodes
; B8 dword physical address of directory table
; BC dword address of debug event memory
; C0 5 dd thread debug registers: DR0,DR1,DR2,DR3,DR7
;
; 0x80090000 -> 9FFFF wav device buffer (64k) ; << SB16Buffer
; 0x800A0000 -> AFFFF screen access area << VGA legacy buffer
; 0x800B0000 -> FFFFF bios rest in peace -area (320k), << purpose unknown
; 0x80100000 -> 283FFF diskette image (1m5)
; 0x80284000 -> HEAP_BASE zero-filled zone after preinit_mem
;
; 0x80284000 -> 28BFFF HDD DMA AREA (32k)
; 0x8028C000 -> 297FFF free (48k)
;
; 0x80298000 -> 29ffff auxiliary table for background smoothing code (32k)
;
; 0x802A0000 -> 2Bffff free (128k)
; 0x80328000 -> 32FFFF !vrr driver (32k)
; 0x80338000 -> 338FFF draw data - 256 entries (4k)
; 00 dword draw limit - x start
; 04 dword draw limit - y start
; 08 dword draw limit - x end
; 0C dword draw limit - y end
; 0x80339000 -> 3BFFF3 free (12k)
; 0x802C0000 -> 2C3fff button info (8k)
;
; 0000 word number of buttons
; first button entry at 0x10
; +0000 word process number
; +0002 word button id number : bits 00-15
; +0004 word x start
; +0006 word x size
; +0008 word y start
; +000A word y size
; +000C word button id number : bits 16-31
;
; 0x802C4000 -> 2CFFFF free (48k)
;
; 0x802D0000 -> 2DFFFF reserved port area (64k)
;
; 0000 dword no of port areas reserved
; 0010 dword process id
; dword start port
; dword end port
; dword 0
;
; 0x80370000 -> 37FFFF irq data area (64k)
; 0x80380000 -> 38FFFF low memory save (64k)
;
; 0x80390000 -> 3AFFFF tcp memory (128k)
; 0x803B0000 -> 3B7FFF tcp memory (32k)
; 0x803B8000 -> 3BFFFF skin data (32k)
; 0x803C0000 page map (length b = memsize shr 15)
; 0x803C0000 + b start of static pagetables
; 0x803FFFFF <- no direct address translation beyond this point
; =============================================================
; 0x805FF000 -> 5FFF80 TSS
; 0x80600000 -> 601FFF i/o maps
; 0x80800000 ->827FFFFF kernel heap
; 0xF0000000 -> 0xF1FFFFFF PCI-express extended config space
; 0xFD000000 -> 0xFD3FFFFF static system buffer 4Mb
; 0xFDC00000 -> 0xFDFFFFFF page tables 4Mb
; 0xFE000000 -> 0xFFFFFFFF LFB 32Mb
; 0xFE000000 -> 0xFE7FFFFF application available LFB 8Mb
; 0xFE800000 -> 0xFFFFFFFF kernel LFB part 24 Mb