2
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1
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2 Blueprint Registers
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3 {
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4 Names
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5 Can Data
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6 Can Pointer
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7 Available?
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8 Need Save
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9 Max Size
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10 }
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11
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12 Set Yes[in:out]
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13 {
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14 out <- Yes
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15 }
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16
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17 _Flip[dest,val,index:out]
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18 {
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19 out <- [dest]Set[val,index]
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20 }
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21 Flip[list,dest:out]
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22 {
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23 out <- Fold["_Flip", dest, list]
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24 }
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25
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26 Registers[names, data, pointer, need save, max size:out]
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27 {
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28 out <- [[[[[[Build["Registers"]
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29 ]Names << [names]
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30 ]Can Data << [data]
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31 ]Can Pointer << [pointer]
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32 ]Available? << [ Map[names, "Set Yes"] ]
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33 ]Need Save << [ Flip[need save, ()] ]
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34 ]Max Size <<[max size]
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35 }
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36
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37 Name@Registers[regs,num:out]
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38 {
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39 out <- [[regs]Names >>]Index[num]
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40 }
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41
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42 Allocate Helper@Registers[regs, try, current:found, not found]
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43 {
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44 reg <- [try]Index[current]
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45 If[[[regs]Available? >>]Index[reg]]
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46 {
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47 found <- Val[reg]
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48 }{
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49 [try]Next[current]
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50 {
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51 found, not found <- [regs]Allocate Helper[try, ~]
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52 }{
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53 not found <- Yes
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54 }
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55 }
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56 }
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57
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58 Allocate Reg@Registers[regs,try:next regs,found,need save?,not found]
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59 {
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60 [try]First
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61 {
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62 found, not found <- [regs]Allocate Helper[try, ~]
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63 {
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64 next regs <- [regs]Available? << [ [[regs]Available? >>]Set[~, No] ]
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65 [[regs]Need Save >>]Index[~]
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66 {
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67 need save? <- Yes
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68 }{
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69 need save? <- No
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70 }
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71 }
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72 }{
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73 not found <- Yes
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74 }
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75 }
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76
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77 Free Reg@Registers[regs,num:out]
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78 {
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79 out <- [regs]Available? <<[ [[regs]Available? >>]Set[num, Yes] ]
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80 }
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81
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82 Processor Reg[func,type:next func,num,not found]
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83 {
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84 regs <- [func]Registers >>
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85 If[[type] = ["pointer"]]
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86 {
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87 source <- [regs]Can Pointer >>
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88 }{
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89 source <- [regs]Can Data >>
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90 }
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91 next regs, reg num, need save?, not found <- [regs]Allocate Reg[source] {}
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92 {
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93 If[need save?]
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94 {
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95 next func <- [[func]Need Save << [ [[func]Need Save >>]Set[reg num, Yes] ]
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96 ]Registers << [next regs]
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97 }{
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98 next func <- [func]Registers << [next regs]
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99 }
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100 num <- Val[reg num]
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101 }
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102 }
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103
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104 Processor Free Reg[func,num:out func]
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105 {
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106 out func <- [func]Registers <<[ [[func]Registers >>]Free Reg[num] ]
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107 }
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108
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109 Processor Allocate[func,name,size,type:out func,out]
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110 {
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111 regs <- [func]Registers >>
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112 If[[type] = ["pointer"]]
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113 {
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114 alloc size <- [func]Pointer Size
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115 }{
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116 alloc size <- size
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117 }
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118 If[[alloc size] > [[regs]Max Size >>]] {
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119 stack alloc <- Val[alloc size]
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120 }{
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121 next func <- [func]Processor Reg[type] {}
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122 {
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123 location <- Register[~, alloc size]
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124 }{
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125 stack alloc <- Val[alloc size]
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126 }
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127 }
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128 Val[stack alloc]
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129 {
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130 next func, location <- [func]Allocate Stack[alloc size]
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131 }
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132 out func <- [next func]Variables <<[ [[next func]Variables >>]Set[name, location] ]
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133 out <- Val[location]
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134 }
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135
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136 Blueprint Register
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137 {
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138 Number
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139 Value Size
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140 }
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141 Register[num,size:out]
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142 {
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143 If[[size] = [3]]
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144 {
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145 value size <- 4
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146 }{
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147 value size <- size
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148 }
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149 out <- [[Build["Register"]]Number <<[num]]Value Size <<[value size]
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150 }
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151
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152 In Memory?@Register[reg:out]
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153 {
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154 out <- No
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155 }
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156
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157 =@Register[reg,other:out]
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158 {
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159 ,out <- If[[Type Of[reg]] = [Type Of[other]]]
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160 {
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161 out <- [[reg]Number >>] = [[other]Number >>]
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162 }
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163 }
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164
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165 Op ASM@Register[reg,func,regs,extra offset:out]
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166 {
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167 out <- [regs]Index[ [reg]Number >> ]
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168 }
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169
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170 Size@Register[reg:out]
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171 {
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172 out <- [reg]Value Size >>
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173 }
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174
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175 Blueprint Immediate
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176 {
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177 Value
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178 }
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179
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180 Immediate[val:out]
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181 {
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182 out <- [Build["Immediate"]]Value <<[val]
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183 }
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184
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185 In Memory?@Immediate[val:out]
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186 {
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187 out <- No
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188 }
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189
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190 =@Immediate[val,other:out]
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191 {
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192 ,out <- If[[Type Of[val]] = [Type Of[other]]]
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193 {
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194 out <- [[val]Value >>] = [[other]Value >>]
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195 }
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196 }
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197
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198 Op ASM@Immediate[val,func,regs,extra offset:out]
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199 {
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200 out <- [val]Value >>
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201 }
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202
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203 Size@Immediate[val:out]
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204 {
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205 out <- 4
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206 }
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207
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208 Blueprint None
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209 {
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210 Dummy
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211 }
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212
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213 None[:out]
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214 {
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215 out <- Build["None"]
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216 }
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217
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218 In Memory?@None[none:out]
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219 {
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220 out <- No
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221 }
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222
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223 Op ASM@None[none,func,regs,extra offset:out]
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224 {
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225 out <- ""
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226 }
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227
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228 Size@None[none:out]
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229 {
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230 out <- 0
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231 }
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232
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233 Blueprint Stack Location
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234 {
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235 Offset
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236 Size
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237 }
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238
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239 Stack Location[offset,size:out]
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240 {
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241 out <- [[Build["Stack Location"]]Offset <<[offset]]Size <<[size]
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242 }
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243
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244 In Memory?@Stack Location[location:out]
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245 {
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246 out <- Yes
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247 }
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248
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249 =@Stack Location[loc,other:out]
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250 {
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251 ,out <- If[[Type Of[loc]] = [Type Of[other]]]
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252 {
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253 out <- [[loc]Offset >>] = [[other]Offset >>]
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254 }
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255 }
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256
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257 Op ASM@Stack Location[loc,func,regs,extra offset:out]
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258 {
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259 offset <- [[[func]Stack Size >>] - [[loc]Offset >>]] - [[loc]Size >>]
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260 If[[offset] > [0]]
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261 {
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262 toffset <- ["+"]Append[offset]
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263 }{
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264 toffset <- ""
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265 }
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266 out <- [["[esp"]Append[toffset]]Append["]"]
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267 }
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268
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269 Size@Stack Location[loc:out]
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270 {
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271 out <- [loc]Size >>
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272 }
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273
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274 Blueprint Pointer
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275 {
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276 Base
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277 Offset
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278 Target Size
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279 }
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280
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281 Pointer[base,offset,size:out]
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282 {
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283 out <- [[[Build["Pointer"]]Base <<[base]]Offset <<[offset]]Target Size <<[size]
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284 }
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285
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286 In Memory?@Pointer[location:out]
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287 {
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288 out <- Yes
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289 }
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290
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291 =@Pointer[pointer,other:out]
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292 {
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293 ,out <- If[[Type Of[loc]] = [Type Of[other]]]
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294 {
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295 out <- [[loc]Storage >>] = [[other]Storage >>]
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296 }
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297 }
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298
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299 Op ASM@Pointer[pointer,func,regs,extra offset:out]
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300 {
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301 If[[Type Of[ [pointer]Offset >> ]] = ["None"]]
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302 {
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303 out <- [["["]Append[ [[pointer]Base >>]Op ASM[func,regs,extra offset] ]]Append["]"]
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304 }{
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305 out <- [[[["["
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306 ]Append[ [[pointer]Base >>]Op ASM[func,regs,extra offset] ]
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307 ]Append["+"]
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308 ]Append[ [[pointer]Offset >>]Op ASM[func,regs,extra offset] ]
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309 ]Append["]"]
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310 }
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311 }
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312
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313 Size@Pointer[pointer:out]
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314 {
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315 out <- [pointer]Target Size >>
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316 }
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317
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318 CAppend[left,right:out]
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319 {
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320 If[[right] = [""]]
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321 {
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322 out <- ""
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323 }{
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324 out <- [left]Append[right]
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325 }
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326 }
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327
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