Rev 3490 | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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1 | ha | 1 | ; |
2 | ; MEMORY MAP |
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3 | ; |
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4 | ; Boot: |
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5 | ; |
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1940 | art_zh | 6 | ; 0:7C00->7CFF boot_code |
7 | ; |
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1 | ha | 8 | ; 0:9000 byte bits per pixel |
9 | ; 0:9001 word scanline length |
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10 | ; 0:9008 word vesa video mode |
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11 | ; 0:900A word X res |
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12 | ; 0:900C word Y res |
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13 | ; 0:9010 byte mouse port - not used |
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14 | ; 0:9014 dword Vesa 1.2 pm bank switch |
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15 | ; 0:9018 dword Vesa 2.0 LFB address |
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16 | ; 0:901C byte 0 or 1 : enable MTRR graphics acceleration |
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17 | ; 0:901D byte not used anymore (0 or 1 : enable system log display) |
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18 | ; 0:901E byte 0 or 1 : enable direct lfb write, paging disabled |
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346 | diamond | 19 | ; 0:901F byte DMA write : 1=yes, 2=no |
1 | ha | 20 | ; 0:9020 8bytes pci data |
21 | ; 0:9030 byte VRR start enabled 1, 2-no |
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22 | ; 0:9031 word IDEContrRegsBaseAddr |
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76 | mario79 | 23 | ; 0x9040 - dword - entry point of APM BIOS |
24 | ; 0x9044 - word - version (BCD) |
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25 | ; 0x9046 - word - flags |
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709 | diamond | 26 | ; 0:907F byte number of BIOS hard disks |
27 | ; 0:9080 Nbytes BIOS hard disks |
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1103 | diamond | 28 | ; 0:9100 word available physical memory map: number of blocks |
29 | ; 0:9104 available physical memory map: blocks |
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1 | ha | 30 | ; |
31 | ; Runtime: |
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32 | ; |
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465 | serge | 33 | ; 0x00000000 -> 0x7FFFFFFF application 2Gb |
34 | |||
1172 | diamond | 35 | ; 0x80000000 -> 0FFF physical page zero - do not write |
36 | ; (used by int 13h in some configurations) |
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1 | ha | 37 | ; |
1172 | diamond | 38 | ; 0x80001000 -> 2FFF window_data - 256 entries |
39 | ; |
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1 | ha | 40 | ; 0000 dword x start |
41 | ; 0004 dword y start |
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42 | ; 0008 dword x size |
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43 | ; 000C dword y size |
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44 | ; 0010 dword color of work area |
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45 | ; 0014 dword color of grab bar |
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46 | ; 0018 dword color of frames |
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47 | ; 001C dword window flags, +30 = window drawn, +31 redraw flag |
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48 | ; |
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49 | ; 3000 -> 4FFF task list - 256 entries |
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50 | ; |
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51 | ; 00 dword process count |
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52 | ; 04 dword no of processes |
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53 | ; 10 dword base of running process at 0x3000+ |
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54 | ; |
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55 | ; 20 dword application event mask |
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56 | ; 24 dword PID - process identification number |
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115 | poddubny | 57 | ; 2a byte slot state: 0=running, 1,2=suspended |
58 | ; 3=zombie, 4=terminate, |
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59 | ; 5=waiting for event, 9 = not used |
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1 | ha | 60 | ; 2e byte window number on screen |
61 | ; 30 dword exact position in memory |
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62 | ; 34 dword counter sum |
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63 | ; 38 dword time stamp counter add |
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64 | ; 3c dword cpu usage in cpu timer tics |
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65 | ; |
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66 | ; |
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3490 | art_zh | 67 | ; 5000 -> 53FF window stack C000 no of windows - all in words |
68 | ; 5402 -> 57FF window position in stack |
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69 | ; 5800 -> 5fff << IDT for int_0x00..int_0x40 + reserv |
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1941 | art_zh | 70 | |
3490 | art_zh | 71 | ; 6000 -> 68FF << free (2k5) |
1941 | art_zh | 72 | |
3519 | art_zh | 73 | ; 6900 -> 6EFF << saved picture under mouse pointer (1k5) |
1 | ha | 74 | ; |
3519 | art_zh | 75 | ; 7000 -> EFFF HDD DMA AREA (32k) |
1 | ha | 76 | ; |
8 | poddubny | 77 | |
1941 | art_zh | 78 | ; FA00 byte no of keys in buffer |
79 | ; FA01 byte 'buffer' |
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80 | ; FA02 -> FAFF reserved for keys |
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81 | |||
82 | ; FB00 byte no of buttons in buffer |
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83 | ; FB01 dword 'buffer' |
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84 | ; FB02 -> FBFF reserved for buttons |
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85 | |||
86 | |||
1 | ha | 87 | ; FC00 -> FCFE com1/ps2 buffer |
88 | ; FCFF com1/ps2 buffer count starting from FC00 |
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1941 | art_zh | 89 | |
1388 | art_zh | 90 | ; FD00 -> FDFF free (256) |
1941 | art_zh | 91 | |
92 | ; FE00 -> FE0F mouse memory 00 chunk count, that includes: |
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93 | ; FE08 word -- mouse H-scroll |
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94 | ; FE0A word -- mouse x |
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3490 | art_zh | 95 | ; FE0C word -- mouse y |
1941 | art_zh | 96 | ; FE0E word -- mouse V-scroll |
97 | |||
98 | ; FE10 -> FB17 mouse color mem |
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99 | ; FE21 x move |
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100 | ; FE22 y move |
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101 | ; FE28 high bits temp |
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102 | ; FE30 color temp |
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103 | ; FE40 byte buttons down |
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104 | ; FE44 byte 0 mouse down -> do not draw |
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105 | ; FE4A -> FE4D FE4A-B x-under - FE4C-D y-under |
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106 | |||
107 | ; FEB8 dword putpixel address |
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108 | ; FEBC dword getpixel address |
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109 | ; FEC1 byte bits per pixel |
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110 | ; FEC4 dword mouse appearance counter |
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111 | ; FEC8 dword x & y temp for windowmove |
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112 | ; FECC dword tsc / second |
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113 | |||
114 | ; FED0 dword screen x size |
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115 | ; FED4 dword screen y size |
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116 | ; FED8 dword screen y multiplier |
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117 | ; FEDC dword screen mode |
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118 | |||
119 | ; FEE4 dword PCIe extended (memory-mappable) config space - physical address |
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120 | ; FEE8 dword PCIe extended config space limit |
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121 | ; FEEC word number of 4M-pages needed to map PCIe config space |
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122 | ; FEEE word PCIe bus range (power-ow-two Mbytes) |
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123 | |||
124 | ; FEF0 dword physical address of user-accessible static system buffer |
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125 | ; FEF4 dword physical address of LFB |
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126 | ; FEF8 dword address of button list |
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127 | ; FEFC dword memory to use |
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1 | ha | 128 | ; FF00 byte 1 = system shutdown request |
1388 | art_zh | 129 | ; FF01 byte task activation request? |
1941 | art_zh | 130 | |
131 | ; FFE4 -> FFEF background info |
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1393 | art_zh | 132 | ; FFF0 byte >0 if redraw background request from app |
133 | ; FFF1 byte >0 if background changed |
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1 | ha | 134 | ; FFF2 write and read bank in screen |
135 | ; FFF4 byte 0 if first mouse draw & do not return picture under |
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136 | ; FFF5 byte 1 do not draw pointer |
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137 | ; FFFF byte do not change task for 1/100 sec. |
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138 | ; |
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1941 | art_zh | 139 | ; 0x80010000 -> 6CBFF the kernel (up to 371 Kb) |
1683 | art_zh | 140 | ; in the current version: |
1899 | art_zh | 141 | ; -> 00B3C 16-bit code end |
1707 | art_zh | 142 | ; -> 00C40 16-bit data end |
2014 | art_zh | 143 | ; -> 105F0 32-bit code start |
144 | ; -> 2C889 32-bit code end |
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145 | ; -> 2FC28..end_of_kernel zero-filled zone after preinit_mem |
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146 | ; -> 33563 uninitialized globals start |
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147 | ; -> 3B752 end_of_kernel |
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1941 | art_zh | 148 | ; -> 3C000 not used (>200k) |
149 | ; 0x80050000 -> 090000 zero-filled zone after preinit_mem |
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3519 | art_zh | 150 | ; 0x8006DC00 -> 5E5FF basic text font II |
151 | ; 0x8006E600 -> 5Efff basic text font I |
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152 | |||
153 | ; 0x8006C000 -> 6CFFF stack at boot time (4Kb) |
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516 | serge | 154 | ; |
3519 | art_zh | 155 | ; 0x8006E000 -> 6EFFF MMIO PTE directory (4Kb) |
156 | ; 0x8006F000 -> 6FFFF main page directory (4Kb) |
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22 | poddubny | 157 | |
516 | serge | 158 | ; 0x80070000 -> 7FFFF data of retrieved disks and partitions (Mario79) |
465 | serge | 159 | ; 0x80080000 -> 8FFFF additional app info, in 256 byte steps - 256 entries |
1 | ha | 160 | ; |
465 | serge | 161 | ; 00 11db name of app running |
162 | ; 0x10 dword pointer to fpu save area |
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163 | ; 0x14 dword event count |
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164 | ; 0x18 dword user fpu exceptoins handler |
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165 | ; 0x1c dword user sse exceptions handler |
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166 | ; 20 dword PL0 stack base |
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167 | ; 24 dword user heap base |
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168 | ; 28 dword user heap top |
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169 | ; 2c dword window cursor handle |
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170 | ; 30 dword first event in list |
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171 | ; 34 dword last event in list |
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172 | ; 38 dword first kernel object in list |
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173 | ; 3c dword last kernel object in list |
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174 | ; 40 dword thread esp |
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175 | ; 44 dword io permission map page 0 |
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176 | ; 48 dword io permission map page 1 |
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540 | victor | 177 | ; 4c dword debug state: 1= load debug registers |
709 | diamond | 178 | ; 50 dword current directory ptr |
179 | ; 54 dword wait timeout |
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180 | ; 58 dword thread TSS._esp0 (= pl0 stack base + size except for V86) |
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181 | ; 5C-7F unused |
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1 | ha | 182 | ; |
465 | serge | 183 | ; 80 dword address of random shaped window area |
184 | ; 84 byte shape area scale |
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185 | ; 88 dword free |
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186 | ; 8C dword application memory size |
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187 | ; 90 dword window X position save |
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188 | ; 94 dword window Y position save |
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189 | ; 98 dword window X size save |
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190 | ; 9C dword window Y size save |
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191 | ; A0 dword IPC memory start |
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192 | ; A4 dword IPC memory size |
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193 | ; A8 dword event bits: mouse, stack,.. |
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194 | ; AC dword 0 or debugger slot |
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195 | ; B0 dword free |
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196 | ; B4 byte keyboard mode: 0 = keymap, 1 = scancodes |
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197 | ; B8 dword physical address of directory table |
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198 | ; BC dword address of debug event memory |
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199 | ; C0 5 dd thread debug registers: DR0,DR1,DR2,DR3,DR7 |
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1 | ha | 200 | ; |
3519 | art_zh | 201 | ; 0x80090000 -> 9FFFF free (64k) |
1941 | art_zh | 202 | ; 0x800A0000 -> AFFFF screen access area << VGA legacy buffer |
203 | ; 0x800B0000 -> FFFFF bios rest in peace -area (320k), << purpose unknown |
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3519 | art_zh | 204 | |
1941 | art_zh | 205 | ; 0x80100000 -> 283FFF diskette image (1m5) |
3519 | art_zh | 206 | ; 0x80280000 -> 9FFF ramdisk fat (8k) |
1683 | art_zh | 207 | |
3519 | art_zh | 208 | ; 0x80280000 -> HEAP_BASE zero-filled zone after preinit_mem |
1 | ha | 209 | ; |
3519 | art_zh | 210 | ; 0x80280000 -> 2Bffff free (262k) |
1941 | art_zh | 211 | |
1388 | art_zh | 212 | ; 0x802C0000 -> 2C3fff button info (8k) |
465 | serge | 213 | ; |
214 | ; 0000 word number of buttons |
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1 | ha | 215 | ; first button entry at 0x10 |
465 | serge | 216 | ; +0000 word process number |
217 | ; +0002 word button id number : bits 00-15 |
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218 | ; +0004 word x start |
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219 | ; +0006 word x size |
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220 | ; +0008 word y start |
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221 | ; +000A word y size |
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222 | ; +000C word button id number : bits 16-31 |
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1 | ha | 223 | ; |
1388 | art_zh | 224 | ; 0x802C4000 -> 2CFFFF free (48k) |
22 | poddubny | 225 | ; |
1388 | art_zh | 226 | ; 0x802D0000 -> 2DFFFF reserved port area (64k) |
1 | ha | 227 | ; |
465 | serge | 228 | ; 0000 dword no of port areas reserved |
229 | ; 0010 dword process id |
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230 | ; dword start port |
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231 | ; dword end port |
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232 | ; dword 0 |
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3519 | art_zh | 233 | |
234 | ; 0x802E0000 -> 2EFFFF irq data area (64k) |
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235 | ; 0x802F0000 -> 327fff free (229k) |
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236 | |||
237 | ; 0x80328000 -> 29ffff auxiliary table for background smoothing code (32k) |
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1 | ha | 238 | ; |
3519 | art_zh | 239 | ; 0x80338000 -> 338FFF draw data - 256 entries (4k) |
240 | ; 00 dword draw limit - x start |
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241 | ; 04 dword draw limit - y start |
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242 | ; 08 dword draw limit - x end |
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243 | ; 0C dword draw limit - y end |
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244 | ; 0x80339000 -> 3BFFF3 free (12k) |
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245 | |||
246 | ; |
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1941 | art_zh | 247 | ; 0x80380000 -> 38FFFF low memory save (64k) |
1 | ha | 248 | ; |
1941 | art_zh | 249 | ; 0x80390000 -> 3AFFFF tcp memory (128k) |
250 | ; 0x803B0000 -> 3B7FFF tcp memory (32k) |
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513 | serge | 251 | |
1941 | art_zh | 252 | ; 0x803B8000 -> 3BFFFF skin data (32k) |
513 | serge | 253 | |
1941 | art_zh | 254 | ; 0x803C0000 page map (length b = memsize shr 15) |
255 | ; 0x803C0000 + b start of static pagetables |
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1487 | art_zh | 256 | |
257 | ; 0x803FFFFF <- no direct address translation beyond this point |
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1941 | art_zh | 258 | ; ============================================================= |
1487 | art_zh | 259 | |
1941 | art_zh | 260 | ; 0x805FF000 -> 5FFF80 TSS |
1487 | art_zh | 261 | ; 0x80600000 -> 601FFF i/o maps |
262 | |||
3168 | art_zh | 263 | ; 0x80800000 ->827FFFFF kernel heap |
1 | ha | 264 | |
1487 | art_zh | 265 | ; 0xF0000000 -> 0xF1FFFFFF PCI-express extended config space |
3519 | art_zh | 266 | |
267 | ; 0xFD000000 -> 0xFD7FFFFF static system buffer (8Mb reserved) |
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268 | ; 0xFD800000 -> 0xFBFFFFFF CPU & Southbridge memory-mapped IO (4Mb reserved) |
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269 | ; +0000..0FFF LAPIC BAR (4k) |
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465 | serge | 270 | ; 0xFDC00000 -> 0xFDFFFFFF page tables 4Mb |
271 | ; 0xFE000000 -> 0xFFFFFFFF LFB 32Mb |
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272 | ; 0xFE000000 -> 0xFE7FFFFF application available LFB 8Mb |
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273 | ; 0xFE800000 -> 0xFFFFFFFF kernel LFB part 24 Mb->><>><>><>><>><> |
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1 | ha | 274 |