操作系统设计与实现源码

				%!PS-Adobe-1.0				%%Creator: devps (Pipeline Associates, Inc.)				%%CreationDate: Fri Sep 13 13:04:07 1996				%%Pages: (atend)				%%DocumentFonts: (atend)								/devps 180 dict def devps begin				/res 10.000000 def				/y_offset 843 def				/X{exch}bind def				/mm {transform round X round X itransform} bind def				/r{rmoveto}bind def				/m{moveto}bind def				/l{lineto}bind def				/rl{rlineto}bind def				/st{stroke}bind def				/gs{gsave}bind def				/gr{grestore}bind def				/cp{currentpoint}bind def				/np{newpath}bind def				/ct{curveto}bind def				systemdict /setpacking known				 { /savepacking currentpacking def true setpacking } if				/m0{0 0 moveto}bind def				/xc{//res div}bind def				/yc{//res neg div //y_offset add}bind def				/lc{yc X xc X l st}bind def				/mc{yc X xc X m}bind def				/el{gs /a X def a div 1 X scale cp np a xc 2 div 0 360 arc st gr}bind def				/ar{cp 7 2 roll np xc 5 1 roll atan 3 1 roll atan X arc st}bind def				/sp{yc X xc X 6 2 roll yc X xc X 6 2 roll yc X xc X 6 2 roll ct}bind def				/V{//res neg div //y_offset add				currentpoint pop X				m}bind def				/H{//res div				0 transform X round X itransform pop				currentpoint X pop				moveto}bind def				/h{//res div 0 r}bind def				/v{//res neg div 0 X r}bind def				/S{X H show}bind def				/A{H //res div 1 index stringwidth pop sub 1 index length div 0 3 2 roll ashow}bind def				/psize 10 def				/height 0 def				/cheight { height 0 ne { height } { psize } ifelse } bind def				/slant 0 def				/FF{findfont X dup 30 div 0 mm pop setlinewidth /psize X def				    [psize 0 cheight slant sin slant cos div mul cheight 0 0]				    makefont setfont}bind def				/shade{gs				 /dy X def				 /dx X def				 np m				 0 /dy rl				 /dx 0 rl				 0 /dy neg rl				 /dx neg 0 rl				 closepath				 .9 setgray				 fill				gr}bind def				1 setlinecap								/resolution res 72 mul def												/startFig {					/SavedState save def					userdict maxlength dict begin					currentpoint transform									DocumentInitState setmiterlimit setgray setdash setlinejoin setlinecap						setlinewidth setmatrix									itransform moveto									/ury exch def					/urx exch def					/lly exch def					/llx exch def					/y exch 72 mul resolution div def					/x exch 72 mul resolution div def										currentpoint /cy exch def /cx exch def									/sx x urx llx sub div def					/sy y ury lly sub div def									sx sy scale									cx sx div llx sub					cy sy div ury sub translate										/DefFigCTM matrix currentmatrix def									/initmatrix {						DefFigCTM setmatrix					} def					/defaultmatrix {						DefFigCTM exch copy					} def									/initgraphics {						DocumentInitState setmiterlimit setgray setdash 							setlinejoin setlinecap setlinewidth setmatrix						DefFigCTM setmatrix					} def									/showpage {						initgraphics					} def								}bind  def				/clipFig {					currentpoint 6 2 roll					newpath 4 copy					4 2 roll moveto					6 -1 roll exch lineto					exch lineto					exch lineto					closepath clip					newpath					moveto				}bind  def				/doclip { llx lly urx ury clipFig } def				/endFig {					end SavedState restore				}bind  def				/globalstart {					fontnum psize slant height resolution currentpoint 					pagesave restore gsave 				}bind  def				/globalend {					grestore moveto					/resolution exch def /height exch def					/slant exch def /psize exch def /fontnum exch def					F					/pagesave save def				}bind  def												/fontnum 1 def 				systemdict /setpacking known { savepacking setpacking} if				end				/BP{				save mark devps begin m0				/DocumentInitState [ matrix currentmatrix currentlinewidth currentlinecap				currentlinejoin currentdash currentgray currentmiterlimit ] cvx def				}bind def				/EP{				end cleartomark restore showpage}def								/Encoding-1 256 array def				0 1 255 {Encoding-1 exch /.notdef put} for				Encoding-1 8#301 StandardEncoding 8#101 26 getinterval putinterval %A-B				Encoding-1 8#341 StandardEncoding 8#141 26 getinterval putinterval %a-b				Encoding-1 8#241 StandardEncoding 8#301 16 getinterval putinterval %accents				Encoding-1 8#373 StandardEncoding 8#365 1 getinterval putinterval %dotlessi				Encoding-1				dup 8#41 /copyright put				dup 8#42 /registered put				dup 8#43 /trademark put				dup 8#44 /logicalnot put				dup 8#45 /Eth put				dup 8#46 /eth put				dup 8#47 /Thorn put				dup 8#50 /thorn put				dup 8#51 /brokenbar put				dup 8#52 /degree put				dup 8#53 /divide put				dup 8#54 /multiply put				dup 8#55 /minus put				dup 8#56 /onehalf put				dup 8#57 /onequarter put				dup 8#60 /threequarters put				dup 8#101 /Aacute put				dup 8#102 /Acircumflex put				dup 8#103 /Adieresis put				dup 8#104 /Agrave put				dup 8#105 /Aring put				dup 8#106 /Atilde put				dup 8#107 /Ccedilla put				dup 8#110 /Eacute put				dup 8#111 /Ecircumflex put				dup 8#112 /Edieresis put				dup 8#113 /Egrave put				dup 8#114 /Iacute put				dup 8#115 /Icircumflex put				dup 8#116 /Idieresis put				dup 8#117 /Igrave put				dup 8#120 /Ntilde put				dup 8#121 /Oacute put				dup 8#122 /Ocircumflex put				dup 8#123 /Odieresis put				dup 8#124 /Ograve put				dup 8#125 /Otilde put				dup 8#126 /Scaron put				dup 8#127 /Uacute put				dup 8#130 /Ucircumflex put				dup 8#131 /Udieresis put				dup 8#132 /Ugrave put				dup 8#133 /Ydieresis put				dup 8#134 /Zcaron put				dup 8#135 /aacute put				dup 8#136 /acircumflex put				dup 8#137 /adieresis put				dup 8#140 /agrave put				dup 8#141 /aring put				dup 8#142 /atilde put				dup 8#143 /ccedilla put				dup 8#144 /eacute put				dup 8#145 /ecircumflex put				dup 8#146 /edieresis put				dup 8#147 /egrave put				dup 8#150 /iacute put				dup 8#151 /icircumflex put				dup 8#152 /idieresis put				dup 8#153 /igrave put				dup 8#154 /ntilde put				dup 8#155 /oacute put				dup 8#156 /ocircumflex put				dup 8#157 /odieresis put				dup 8#160 /ograve put				dup 8#161 /otilde put				dup 8#162 /scaron put				dup 8#163 /uacute put				dup 8#164 /ucircumflex put				dup 8#165 /udieresis put				dup 8#166 /ugrave put				dup 8#167 /ydieresis put				dup 8#170 /zcaron put				pop								/Enc-dict 30 dict def				Enc-dict /tmpstr1 50 string put				Enc-dict /tmpstr2 50 string put				Enc-dict /tmpstr3 50 string dup (Encoding-) exch cvs pop put				/AEnc-def { % arguments: the original font's name, encoding nr				Enc-dict begin				tmpstr2 cvs /Enc-no exch def % Remember the number in a string				dup /OrigName exch def % remember the name				findfont dup maxlength dict /newdict exch def % get dictionary for new font				{ exch dup /FID ne				   { exch newdict 3 1 roll put }				   { pop pop } % Ignore FID				   ifelse				} forall				newdict begin				/Encoding				  tmpstr3 9 Enc-no putinterval tmpstr3 0 9 Enc-no length add getinterval				  cvn load				  def % Replace encoding				currentdict /UniqueID known				{ /UniqueID UniqueID Enc-no cvi 49999 mul add def } if % Derive New UniqueID				end % newdict				/FNlength OrigName tmpstr1 cvs length def % convert name, remember length				FNlength 1 add Enc-no length add string				dup 0 OrigName tmpstr1 cvs putinterval				dup FNlength (-) putinterval				dup FNlength 1 add Enc-no putinterval				dup 0 tmpstr1 0 FNlength getinterval putinterval % Add old name				cvn dup newdict /FontName 3 2 roll put newdict definefont				end % Enc-dict				} def				/Times-Roman 1 AEnc-def pop				/R-1{/Times-Roman-1 FF}def				/Times-Bold 1 AEnc-def pop				/B-1{/Times-Bold-1 FF}def				/R{/Times-Roman FF}def				/B{/Times-Bold FF}def				/I{/Times-Italic FF}def				%%EndProlog				%%Page: 1 1				BP				/slant 0 def				/height 0 def				480 V				10 R				(MOUNT)370 720 A				1098(\()S				1140(1)S				1198(\))S				2696(Eighth)S				(Edition)296 2989 A				(MOUNT)370 4749 A				5127(\()S				5169(1)S				5227(\))S				960 V				9 R				720(N)S				722(NA)S				790(AM)S				858(ME)S				940(E)S				1080 V				10 R				(mount)256 1080 A				10 R-1				1361(-)S				10 R				(mount)256 1443 A				1724(a)S				1794(\256le)S				1948(system)S				1248 V				9 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