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MEMMAP.INC
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;
; MEMORY MAP
;
; Boot sector:
;
; 0:0600 -> 0:17FF 4.5k floppy Fat during boot
; 0:2800 -> 0:43FF 7k floppy root directory during boot
; <- 0:7BFF 20b processor stack during boot
; 0:7c00 -> 0:7FFF 512b boot program (set by BIOS)
; 1000:0 -> 2AC0:0 110k kernel
;
; Kernel 16bit (boot):
;
; 0:0600 -> 0:17FF 4.5k floppy Fat
; 0:2800 -> 0:43FF 7k MBR (1 sector) & floppy root directory
; 0:4400 -> 0:4DFF 2.5k configuration file loaded
; 0:a000 -> 0:a1ff 512b temporary buffer during kernel init
; <- 2000:FFFF 100b temporary kernel stack (limits kernel size)
;
; Kernel 16bit (for runtime):
;
; 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
; 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
; 0:9020 8bytes pci data
; 0:9030 byte memory model
;
; 6000:0 -> 6000:fbff 64k 1st paging table
; 7000:0 -> 7000:003f 64b 2nd paging table
;
; Kernel 32bit (runtime):
;
; 0000 -> 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 word 0, state 3=zombie, 4=terminate
; 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 -> AFFF free
; BF00 -> BFFF bytes, 1 if process running/memory in use
; C000 -> C3FF window stack C000 no of windows - all in words
; C402 -> C7FF window position in stack
; D000 -> D1FF FDC controller
; D200 -> DFFF free
; E000 byte multitasking started
; E004 dword save for boot mem 0x24
; E010 dword pm bank switch address
; E014 dword window multiplier
; E020 dword putpixel address
; E024 dword getpixel address
; E030 dword Vesa 1.2 pm bank switch address
; F000 dword hd partition 1 start
; F004 dword root start at partition 1
; F008 dword root start at hd
; F100 byte 1=only os draw on screen
; F200 dword mousepicture -pointer
; F204 dword mouse appearance counter
; F300 dword x & y temp for windowmove
; F400 byte no of keys in buffer
; F401 byte 'buffer'
; F402 -> F4FF reserved for keys
; F500 byte no of buttons in buffer
; F501 dword 'buffer'
; F502 -> F5FF reserved for buttons
; F600 dword tsc / second
; F604 byte mouse port: 1 ps2, 2 com1, 3 com2
; FB00 -> FB0F mouse memory 00 chunk count - FB0A-B x - FB0C-D y
; FB10 -> FB17 mouse color mem
; FB21 x move
; FB22 y move
; FB28 high bits temp
; FB30 color temp
; FB40 byte buttons down
; FB44 byte 0 mouse down -> do not draw
; FB4A -> FB4D FB4A-B x-under - FB4C-D y-under
; FBF0 byte multiplied window
; FBF1 byte bits per pixel
; FC00 -> FCFE com1/ps2 buffer
; FCFF com1/ps2 buffer count starting from FC00
; FDF0 -> FDF3 timer tick inc every 1/100 sec 4 bytes
; FE00 dword screen x size
; FE04 dword screen y size
; FE08 dword screen y multiplier
; FE0C dword screen mode
; FE10 dword entries in hd cache
; FE80 dword address of LFB in physical
; FE84 dword address of applications memory start in physical
; FE88 dword address of button list
; FE8C dword memory to use
; FF00 byte 1 = system shutdown request
; FF01 dword if >1 then activate process
; FFF0 byte 1 = redraw background request from app
; FFF1 byte 1 = diskette int occur
; 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
;
; 10000 -> 1FFFF 32 bit os
; 20000 -> 2FFFF 32 bit stack
; 30000 -> 36FFF basic text font II
; 37000 -> 3BFFF basic text font I
; 40000 -> 4FFFF free
; 50000 -> 500FF TSS of scheduler
; 51000 -> 54000 esp0,esp1,esp2
; 5F000 -> 5FFFF schedulers stack
; 60000 -> 7FFFF paging tables
; 80000 -> 8FFFF additional app info, in 256 byte steps - 256 entries
;
; 00 11db name of app running
; 10 108db floating point unit save area
; 7f byte 0= no fpu saved , 1= fpu saved to 0x10 -> restore
; 80 dword address of random shaped window area
; 84 byte shape area scale
; 88 dword used GDT of TSS
; 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,..
;
; B0 dword int40 handler in use ; 0 if not in use
; B4 byte keyboard mode: 0 = keymap, 1 = scancodes
;
; 90000 -> 9FFFF tmp
; A0000 -> AFFFF screen access area
; B0000 -> FFFFF bios
; 100000 -> 27FFFF diskette image
; 280000 -> 281000 diskette fat
; 290000 -> 297FFF TSS's of interrupts
; 298000 -> 29FFFF TSS's of SYSTEM interrupts - 256 entries
; 2A0000 -> 2B00ff wav device data
; 2C0000 -> 2C3fff button info
;
; 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
;
; 2D0000 -> 2DFFFF reserved port area
;
; 0000 dword no of port areas reserved
; 0010 dword process id
; dword start port
; dword end port
; dword 0
;
; 2E0000 -> 2EFFFF irq data area
; 2F0000 -> 2FFFFF low memory save
;
; 300000 -> 3FFFFF background image, max 1 M
;
; 400000 -> 5FFFFF display info
;
; 600000 -> 6FFFFF hd cache
;
; 700000 -> 71ffff tcp memory (128 kb)
; 720000 -> 75ffff interrupt stacks (256 kpl * 1024)
;
; 760000 -> 76ffff free
; 770000 -> 777fff tcp memory ( 32 kb)
;
; 778000 -> 77ffff window skinning ( 32 kb)
; 780000 -> 7fffff free
;
; 800000 -> 99FFFF mapped to LFB (EGA/VGA)
;
; 9A0000 -> BFFFFF TSS and IO map for (8192*8)=65536 ports
; (128+8192)*256 = 2129920
;
; C00000 -> C01FFF draw_data - 256 entries
;
; 00 dword draw limit - x start
; 04 dword draw limit - y start
; 08 dword draw limit - x end
; 0C dword draw limit - y end
; 1C dword app int vector
;
; C03000 -> D11fff sysint_stack_data
; - system interrupt stacks
; - 256 entries * 4096 step
;
; D20000 -> D9FFFF Menu under image ( 3 * 140 * 1000 ) ; max 0.5 MB
;
; DA0000 -> DAFFFF Scrolls, max 32*2000
;
; 1000000 -> 3FFFFFF for applications
;