wok annotate linld/stuff/src/pipehole.awk @ rev 22176

linld: spare up to 30k more for zImage
author Pascal Bellard <pascal.bellard@slitaz.org>
date Fri Nov 08 20:55:40 2019 +0100 (2019-11-08)
parents 19141648d795
children 65ea21135647
rev   line source
pascal@21791 1 BEGIN { hold=0; is386=0; isload=0; isiso=0; istazboot=0; wascall=0; ishimem=0; label="none"; xlabel=""; file="" }
pascal@20458 2 function isnum(n) { return match(n,/^[0-9+-]/) }
pascal@20458 3 {
pascal@20632 4 sub(/segment word public/,"segment byte public")
pascal@20634 5
pascal@22171 6 if (/^ ; $/) next
pascal@21576 7 if (/^@.*:$/ || / endp$/) afterjmp=0
pascal@21791 8 if (/^ \.386p$/) is386=1
pascal@21791 9 if (file == "" && /debug S/) { file=$3; gsub(/\"/,"",file) }
pascal@21984 10 if (/debug S/) print " %PAGESIZE 1000"
pascal@21984 11 if (file == "tazboot.cpp") {
pascal@21984 12 if (/add si,2/) $0=" lodsw ; " $0
pascal@21984 13 if (/add si,4/) { print " lodsw"; $0=" lodsw ; " $0 }
pascal@21984 14 if (/add di,2/) $0=" scasw ; " $0
pascal@21989 15 if (/int argc/) istazboot=1
pascal@21989 16 if (istazboot == 1) {
pascal@21989 17 if (/push.*i$/) $0="; " $0
pascal@21989 18 if (/word ptr/) { istazboot=0; $0="; " $0 }
pascal@21989 19 }
pascal@21984 20 } # file == "tazboot.cpp"
pascal@21984 21 if (file == "linld.cpp") {
pascal@21984 22 if (/add si,2/) $0=" lodsw ; " $0
pascal@21984 23 if (/add di,2/) $0=" scasw ; " $0
pascal@21984 24 if (/bx,offset DGROUP:s@\+26/) sub(/mov/,";mov")
pascal@21984 25 if (islinld==1) {
pascal@21984 26 print "; " $0
pascal@21984 27 if (!/word ptr/) next
pascal@21984 28 islinld=0
pascal@21984 29 sub(/,word.*/,",di ; argv")
pascal@21984 30 if (/di,di/) { print "; " $0; next }
pascal@21984 31 }
pascal@21984 32 if (/^_main proc/) islinld=1
pascal@21984 33 if (/== 0x662F/) islinld=2
pascal@21984 34 if (islinld==2) {
pascal@21984 35 if (/cpuhaslm/) islinld=0
pascal@21984 36 if (/mov/) { print "; " $0; next }
pascal@21984 37 }
pascal@21984 38 if (/image\|initrd/) islinld=3
pascal@21984 39 if (islinld==3) {
pascal@21984 40 if (/bx,word ptr/) { islinld=0; print "; " $0; next }
pascal@21984 41 }
pascal@21984 42 if (/fileexist\$qpxzc/) islinld=4
pascal@21984 43 if (islinld==4) {
pascal@21984 44 if (/ax,-1/) print " mov bx,word ptr [si]"
pascal@21984 45 if (/ax,word ptr/) $0=" xchg ax,bx"
pascal@21984 46 if (/\[si\]$/) { islinld=0; print "; " $0; next }
pascal@21984 47 }
pascal@21984 48 } # file == "linld.cpp"
pascal@21791 49 if (file == "himem.cpp") {
pascal@21984 50 if (/void load_image/) ishimem=1
pascal@21791 51 if (ishimem == 1 && is386 == 0) {
pascal@21791 52 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
pascal@21791 53 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
pascal@21791 54 if (/si\+12\],ax/ || /si\+16\],ax/ || /bp-2\],ax/) sub(/,ax/,",es")
pascal@21984 55 }
pascal@21984 56 if (ishimem == 1) {
pascal@21984 57 if (/do \{/) ishimem=2
pascal@21984 58 if (/byte ptr DGROUP:_vcpi,0/) print " mov bx,si"
pascal@21984 59 if (/bx,si/) next
pascal@21984 60 if (/sp,6/) {
pascal@21984 61 print " push si"
pascal@21984 62 print " push si"
pascal@21984 63 next
pascal@21984 64 }
pascal@21984 65 }
pascal@21984 66 if (ishimem == 2) {
pascal@21984 67 if (/movzx/) print " cwde"
pascal@21984 68 if (/bp-6/) next
pascal@21984 69 if (/storepage.bufv/) {
pascal@21984 70 print " inc ax"
pascal@21984 71 print " push ax"
pascal@21984 72 }
pascal@21984 73 if (/buf \+= size;/) {
pascal@21984 74 print " pop ax"
pascal@21984 75 }
pascal@21984 76 if (/Read error/) ishimem=0
pascal@21791 77 }
pascal@21791 78 } # file == "himem.cpp"
pascal@21791 79 if (file == "load.cpp") {
pascal@21998 80 if (/== 0x200/) isload=13
pascal@21998 81 if (isload == 13) { # LOAD.LST
pascal@21998 82 if (/cmp/) {
pascal@21998 83 print " mov dx,-512"
pascal@21998 84 $0=" add ax,dx"
pascal@21998 85 }
pascal@21998 86 if (/dx,-512/) {
pascal@21998 87 isload=0
pascal@21998 88 $0="; " $0
pascal@21998 89 }
pascal@21998 90 }
pascal@22152 91 if (/i\+21\],513$/) isload=11
pascal@21984 92 if (isload == 12) { # LOAD.LST
pascal@21984 93 if (/cmp/) next
pascal@21984 94 if (/jb/) isload=0
pascal@21984 95 sub(/jb/,"jcxz")
pascal@21984 96 }
pascal@21984 97 if (isload == 11) { # LOAD.LST
pascal@21984 98 if (/cmp/) {
pascal@21984 99 print " mov cx,513"
pascal@22152 100 sub(/cmp /,"sub cx,")
pascal@22152 101 sub(/,513/,"")
pascal@21984 102 }
pascal@21984 103 if (/jb/) isload=12
pascal@21984 104 sub(/jb/,"ja")
pascal@21984 105 }
pascal@22170 106 sub(/_imgs\+65534/,"_imgs-2")
pascal@22152 107 if (/m, _rm_size/) isload=10
pascal@21791 108 if (isload == 10) { # LOAD.LST
pascal@21791 109 if (/^ je /) next
pascal@21791 110 if (/ptr @die\$qpxzc/) {
pascal@21791 111 $0=" jne @die@"
pascal@21791 112 isload=0
pascal@21791 113 }
pascal@21791 114 }
pascal@21791 115 if (/setup_sects == 0/) isload=9
pascal@21791 116 if (isload == 9) { # LOAD.LST
pascal@21791 117 sub(/,0/,",al")
pascal@21791 118 if (/jne/) isload=0
pascal@21791 119 }
pascal@21784 120 if (/fallback\)\[1\] == 0/) isload=8
pascal@21784 121 if (isload == 8) { # LOAD.LST
pascal@21784 122 if (/load_image/) isload=0
pascal@21784 123 else next
pascal@21784 124 }
pascal@21757 125 if (/cmd_line_ptr =/ && is386 == 0) isload=7
pascal@21757 126 if (isload == 7) { # LOAD.LST
pascal@21757 127 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/) next
pascal@22170 128 if (/enable A20 if needed/) { print nextinst; isload=0 }
pascal@21791 129 if (/,ax/) $0=" mov bx,55"
pascal@22152 130 if (/i-463/) $0=" mov bx,-463"
pascal@22170 131 if (/i-465/) {
pascal@22170 132 sub(/465/,"2"); sub(/\[/,"[bx+")
pascal@22170 133 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
pascal@22170 134 }
pascal@21757 135 if (/,dx/) {
pascal@21757 136 print " mov cl,12"
pascal@21757 137 print " shr ax,cl"
pascal@21757 138 sub(/dx/,"ax")
pascal@21757 139 }
pascal@21757 140 }
pascal@21757 141 if (/\[0\] = m-\>fallback/) isload=6
pascal@21757 142 if (isload == 6) { # LOAD.LST
pascal@21984 143 if (/si\+2/) $0=" lodsw"
pascal@21757 144 if (/les/) sub(/bx,/,"ax,")
pascal@21757 145 if (/bx\+4/ || /es:/) {
pascal@21757 146 if (/bx\+4/) isload=0
pascal@21757 147 next
pascal@21757 148 }
pascal@21757 149 if (/si\+6/) {
pascal@21757 150 print " xchg ax,di"
pascal@21757 151 print " movsw"
pascal@21757 152 print " movsw"
pascal@21757 153 print " movsw"
pascal@21757 154 print " movsw"
pascal@21757 155 print " xchg ax,di"
pascal@21757 156 next
pascal@21757 157 }
pascal@21757 158 }
pascal@21757 159 if (/version_string = /) isload=5
pascal@21757 160 if (isload == 5) { # LOAD.LST
pascal@21757 161 sub(/ax,/,"bx,")
pascal@21757 162 if (/_version_string,/) isload=0
pascal@21757 163 if (/mov bx,ax/) next
pascal@21757 164 }
pascal@21757 165 if (/topseg\(\)>>12/) isload=4
pascal@21757 166 if (isload == 4 && is386 == 0) { # LOAD.LST
pascal@21757 167 if (/push/ || /pop/) next
pascal@21757 168 if (/ax,cs/) {
pascal@21757 169 sub(/ax,cs/,"bx,cs")
pascal@21757 170 }
pascal@21757 171 if (/dx,dx/) next
pascal@21757 172 sub(/ax,dx/,"ax,bx")
pascal@21784 173 if (/call/) {
pascal@21784 174 print " cmp ax,0fffh"
pascal@21784 175 print " jae @sys@ok"
pascal@21784 176 print " mov ax,0fffh"
pascal@21784 177 print "@sys@ok:"
pascal@21784 178 isload=400
pascal@21784 179 }
pascal@21757 180 }
pascal@21791 181 if (isload == 400) {
pascal@21791 182 if (/call/) {
pascal@21791 183 print " extrn N_LXLSH@4:near"
pascal@21791 184 sub(/N_LXLSH@/,"N_LXLSH@4")
pascal@21791 185 }
pascal@22176 186 sub(/-3\],0/,"-3],dh")
pascal@21791 187 if (/_base_himem\+2/ || /pop/ || /push/) next
pascal@21791 188 if (/_base_himem$/) {
pascal@21791 189 sub(/mov dx,/,"les dx,d")
pascal@21791 190 isload++
pascal@21791 191 }
pascal@21791 192 }
pascal@21791 193 if (isload == 401) {
pascal@21791 194 sub(/,ax/,",es")
pascal@21791 195 if (/load_image/) isload=0
pascal@21757 196 }
pascal@21757 197 if (isload == 4 && is386) { # LOAD.LST
pascal@21757 198 sub(/dx,cs/,"edx,cs")
pascal@21757 199 sub(/eax/,"edx")
pascal@21784 200 if (/shl/) {
pascal@21784 201 print " mov ax,0fffh"
pascal@21784 202 print " cmp dx,ax"
pascal@21784 203 print " jae @sys@ok"
pascal@21784 204 print " xchg ax,dx"
pascal@21784 205 print "@sys@ok:"
pascal@21784 206 }
pascal@21757 207 sub(/ax,9/,"dx,9")
pascal@21758 208 if (/,0$/) sub(/,0/,",dh")
pascal@21757 209 if (/movzx/) next
pascal@21757 210 if (/fallback = base_himem/) { isload=0 }
pascal@21757 211 }
pascal@21754 212 if (/void load_initrd\(\)/) isload=3
pascal@21754 213 if (isload == 3) { # LOAD.LST
pascal@21754 214 if(/push di/ || /pop di/) next
pascal@21754 215 sub(/\[di/,"[bx")
pascal@21754 216 sub(/\di,/,"bx,")
pascal@21754 217 }
pascal@21750 218 if (/vid_mode = vid_mode/) isload=2
pascal@21750 219 if (isload == 2) { # LOAD.LST
pascal@21750 220 sub(/,0/,""); sub(/cmp /,"mov cx,")
pascal@21750 221 sub(/je/,"jcxz")
pascal@21750 222 if (/ax,word/) next
pascal@21750 223 sub(/,ax/,",cx")
pascal@21757 224 if (/version_string/ || /starting linux 1\.3\.73/) isload=0
pascal@21750 225 }
pascal@21791 226 if (/Not a kernel/ || /_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
pascal@21750 227 if (isload == 1) { # LOAD.LST
pascal@21791 228 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
pascal@21729 229 if (/mov al,byte ptr/ && is386) {
pascal@22152 230 sub(/mov al/,"movzx eax")
pascal@21729 231 }
pascal@21791 232 if (is386 == 0) {
pascal@22152 233 if (/m->size -= _rm_size/) print " cwd"
pascal@21791 234 sub(/,0$/,",dx")
pascal@21791 235 }
pascal@21729 236 if (/ax,word ptr/) next
pascal@21729 237 if (/^ call/) isload=0
pascal@21729 238 }
pascal@21791 239 } # file == "load.cpp"
pascal@21791 240 if (file == "iso9660.cpp") {
pascal@21791 241 if (/<< SECTORBITS/) isiso=9
pascal@21791 242 if (isiso == 9) { # ISO9660.LST
pascal@21791 243 if (/dx,/) next
pascal@21791 244 sub(/mov ax,/,"les ax,d")
pascal@21791 245 if (/^ call/) {
pascal@21791 246 print " extrn N_LXLSH@ES:near"
pascal@21791 247 sub(/N_LXLSH@/,"N_LXLSH@ES")
pascal@21791 248 isiso=0
pascal@21791 249 }
pascal@21791 250 }
pascal@21791 251 if (/filesize =/) isiso=8
pascal@21791 252 if (isiso == 8) { # ISO9660.LST
pascal@21791 253 if (/ax,/) next
pascal@21791 254 sub(/mov dx,/,"les dx,d")
pascal@21791 255 sub(/,ax/,",es")
pascal@21791 256 if (/filemod/) isiso=0
pascal@21791 257 }
pascal@21754 258 if (/CD001/) isiso=7
pascal@21754 259 if (isiso == 7) { # ISO9660.LST
pascal@21754 260 sub(/mov ax,-1/,"dec ax")
pascal@21754 261 if (/jmp/) isiso=0
pascal@21754 262 }
pascal@21754 263 if (/int len =/) isiso=6
pascal@21754 264 if (isiso == 6) { # ISO9660.LST
pascal@21754 265 if (/dx,ax/) next
pascal@21754 266 sub(/ax/,"dx")
pascal@21754 267 sub(/cx,di/,"bx,di")
pascal@21754 268 sub(/cx,dx/,"bx,ax")
pascal@21754 269 sub(/di,dx/,"di,ax")
pascal@21754 270 if (/while/) isiso=2
pascal@21754 271 }
pascal@21754 272 if (/entrysize =/) isiso=5
pascal@21754 273 if (isiso == 5) { # ISO9660.LST
pascal@21754 274 if (/ax,ax/) next
pascal@21754 275 sub(/ax/,"cx")
pascal@21754 276 sub(/je/,"jcxz")
pascal@21754 277 if (/return/) isiso=0
pascal@21754 278 }
pascal@21735 279 if (/x->curdirsize == 0xFFFF/) isiso=4
pascal@21735 280 if (isiso == 4) { # ISO9660.LST
pascal@21754 281 sub(/DGROUP:_isostate\+18/,"[si+18]")
pascal@21754 282 sub(/DGROUP:_isostate\+20/,"[si+20]")
pascal@21747 283 if (/goto restarted/) isiso=0
pascal@21735 284 }
pascal@21791 285 } # file == "iso9660.cpp"
pascal@21791 286 if (file == "iso9660.cpp" || file == "tazboot.cpp") {
pascal@21754 287 if (/do s\+\+; while/) isiso=3
pascal@21801 288 if (/for \(p = s; \*s && \*s \!=/) isiso=3 # tazboot/main
pascal@21750 289 if (isiso == 3) { # ISO9660.LST, TAZBOOT.LST
pascal@21754 290 sub(/cmp byte ptr \[.i\]/,"sub al")
pascal@21754 291 if (/mov byte ptr \[bp-5\],al/) $0=" push ax"
pascal@21754 292 if (/mov al,byte ptr \[bp-5\]/) $0=" pop ax"
pascal@21754 293 if (/inc /) { r=$2; print; next }
pascal@21754 294 if (/al,0/) print " mov al,[" r "]"
pascal@21754 295 if (/al,byte ptr/) sub(/mov/,"xchg")
pascal@21754 296 if (/byte ptr \[.*\],0/) next
pascal@21791 297 if (/jmp/) {
pascal@21791 298 print " mov bx,si"
pascal@21791 299 $0=" db 0A8h ; test al,xx instead of " $0
pascal@21791 300 }
pascal@21754 301 if (/word ptr \[bp-4\]/) next
pascal@21754 302 if (/\) s\+\+;/ || /\],-1/) isiso=0
pascal@21735 303 }
pascal@21791 304 } # file == "iso9660.cpp" || file == "tazboot.cpp"
pascal@21791 305 if (file == "iso9660.cpp") {
pascal@21735 306 if (/endname = NULL/) isiso=2
pascal@21735 307 if (isiso == 2) { # ISO9660.LST
pascal@21735 308 if (/mov bx,cx/) next
pascal@21735 309 gsub(/cx/,"bx")
pascal@21754 310 sub(/DGROUP:_isostate\+35/,"[si+35]")
pascal@21735 311 }
pascal@21735 312 if (/const char \*n = name/) isiso=1
pascal@21735 313 if (isiso == 1) { # ISO9660.LST
pascal@21735 314 if ((/mov word ptr \[si\+32\],ax/ ) ||
pascal@21754 315 (/mov ax,word ptr \[si\+2\]/) ||
pascal@21735 316 (/bx,word ptr \[si\+32\]/) || (/ax,dx/)) next
pascal@21729 317 if (/dx,/) sub(/dx/,"ax")
pascal@21754 318 if ((/sub ax,word ptr \[si\+2\]/) ||
pascal@21754 319 (/\[si\+16\]/) || (/ax,di/)) sub(/ax/,"bx")
pascal@21754 320 if (/add word ptr \[si\+32\],ax/) $0=" add bx,word ptr [si+16]"
pascal@21735 321 if (/al,/ || /,al/) sub(/al/,"cl")
pascal@21754 322 if (/cmp byte ptr \[si\+34\],0/) $0=" or cl,cl"
pascal@21735 323 if (/jne @@0$/) next
pascal@21735 324 if (/jmp @3@58$/) $0=" je @3@58"
pascal@21754 325 sub(/mov ax,-1/,"dec ax")
pascal@21754 326 }
pascal@21791 327 } # file == "iso9660.cpp"
pascal@21754 328 if (/endp/) { xlabel = ""; goto2=0 }
pascal@21801 329 if (/isoopen\(s\+7\)/ && xlabel == "") goto2=1 # tazboot/bootiso
pascal@21801 330 if (/_vid_mode,ax/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 331 if (/_initrd_name,si/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 332 if (/_base_himem\+2,/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21801 333 if (/DGROUP:_skip_alloc/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21754 334 if (/puts\(cmdline\)/ && xlabel == "@@") goto2=1
pascal@21754 335 if (goto2 == 1 && /jmp/) { # TAZBOOT.LST && LINLD.LST
pascal@21754 336 print $NF xlabel "@:"
pascal@21754 337 label=$NF
pascal@21754 338 }
pascal@21754 339 if (goto2 > 0 && label == $NF) {
pascal@21754 340 $0=$0 xlabel
pascal@21754 341 if (goto2++ == 1) xlabel=xlabel "@"
pascal@21754 342 }
pascal@21801 343 if (file == "tazboot.cpp" && /close\(x/) isotazboot=16
pascal@21801 344 if (isotazboot == 160) { # TAZBOOT.LST
pascal@21801 345 $0="; " $0
pascal@21801 346 if (/ret/) isotazboot=0
pascal@21801 347 }
pascal@21801 348 if (isotazboot == 16) { # TAZBOOT.LST
pascal@21801 349 if (/@.@/) {
pascal@21801 350 isotazboot=160
pascal@21801 351 next
pascal@21801 352 }
pascal@21801 353 }
pascal@21801 354 if (file == "tazboot.cpp" && /jne @@2/) isotazboot=15
pascal@21801 355 if (isotazboot == 15) { # TAZBOOT.LST
pascal@21801 356 if (/@.@/) {
pascal@21801 357 print " pop di"
pascal@21801 358 print " pop si"
pascal@21801 359 print " mov sp,bp"
pascal@21801 360 print " pop bp"
pascal@21801 361 print " ret"
pascal@21801 362 next
pascal@21801 363 }
pascal@21801 364 if (/skip_alloc/) isotazboot=0
pascal@21801 365 }
pascal@21791 366 if (/if\(\*s>=/) isotazboot=14
pascal@21791 367 if (isotazboot == 14) { # LINLD.LST
pascal@21791 368 if (/jmp/) {
pascal@21791 369 $0=" db 0A9h ; test ax,xxxx instead of " $0
pascal@21791 370 isotazboot=0
pascal@21791 371 }
pascal@21791 372 }
pascal@21801 373 if (file == "tazboot.cpp" && /; s \+= 4/) isotazboot=13 # tazboot/main
pascal@21791 374 if (isotazboot == 13) { # TAZBOOT.LST
pascal@21791 375 if (/si,4/) $0=" lea bx,[si+4]"
pascal@21791 376 if (/bx,si/) next
pascal@21791 377 if (/DGROUP:_topmem/ || /set_iso/) isotazboot=0
pascal@21791 378 }
pascal@21801 379 if (file == "tazboot.cpp" && /case 0x652F:/) isotazboot=12 # tazboot/main
pascal@21791 380 if (isotazboot == 12) { # TAZBOOT.LST
pascal@21791 381 sub(/si,word/,"bx,word")
pascal@21791 382 if (/short/) isotazboot=0
pascal@21791 383 }
pascal@21801 384 if (/return load_kernel/) isotazboot=11 # tazboot/isokernel
pascal@21791 385 if (isotazboot == 11) { # TAZBOOT.LST
pascal@21791 386 sub(/call/,"jmp")
pascal@21791 387 if (/ret/ || /pop/) next
pascal@21791 388 if (/endp/) isotazboot=0
pascal@21791 389 }
pascal@21801 390 if (/cmdline=s\+=3/ || /magic \!= 0/ || /&root_dev =/) { isotazboot=10; j="" } # ,tazboot/bootiso,tazboot/main
pascal@21754 391 if (isotazboot == 10) { # TAZBOOT.LST && LINLD.LST
pascal@21754 392 if (/je/ || /jne/) { j=$1; next }
pascal@21754 393 if (/jmp/) {
pascal@21754 394 if (j=="jne") sub(/jmp/,"je")
pascal@21754 395 else if (j=="je") sub(/jmp/,"jne")
pascal@21754 396 isotazboot=0
pascal@21754 397 }
pascal@21754 398 }
pascal@21801 399 if (/static const unsigned long initrddesc = 18L/) isotazboot=9 # tazboot/bootiso
pascal@21754 400 if (isotazboot == 9) { # TAZBOOT.LST
pascal@21754 401 if (/,0/) {
pascal@21754 402 split($4,y,",")
pascal@21754 403 print " mov bx,offset " y[1]
pascal@21801 404 sub(/DGROUP:.*,/,"[bx],")
pascal@21754 405 }
pascal@21801 406 if (/mov/ && $3 == y[1]) next
pascal@21801 407 if (/je/) next
pascal@21801 408 if (/jmp/) sub(/jmp/,"jne")
pascal@21801 409 sub(/ax,offset/,"bx,offset")
pascal@21801 410 if (/bx,ax/) { isotazboot=0; next }
pascal@21729 411 }
pascal@21801 412 if (/isoopen\(s\+7\) != -1/) isotazboot=8 # tazboot/bootiso
pascal@21750 413 if (isotazboot == 8) { # TAZBOOT.LST
pascal@21801 414 sub(/\[bx/,"[si")
pascal@21801 415 if (/bx,si/) next
pascal@21750 416 if (/magic/) isotazboot=0
pascal@21750 417 }
pascal@21801 418 if (/isoopen\(\"bzImage\"\)/) isotazboot=7 # tazboot/bootiso
pascal@21750 419 if (isotazboot == 7) { # TAZBOOT.LST
pascal@21791 420 if (/inc/ || /,al/) next
pascal@21791 421 if (/al,byte/) sub (/mov al,/,"inc ")
pascal@21750 422 if (/isokernel/) isotazboot=0
pascal@21750 423 }
pascal@21801 424 if (/if \(c\) s\+\+;/) isotazboot=6 # tazboot/main
pascal@21750 425 if (isotazboot == 6) { # TAZBOOT.LST
pascal@21750 426 if (/cmp/) {
pascal@21750 427 $0=" cmp al,0"
pascal@21750 428 isotazboot=0
pascal@21750 429 }
pascal@21750 430 }
pascal@21801 431 if (/static void next_chunk/) isotazboot=5 # tazboot/next_chunk
pascal@21791 432 if (isotazboot == 501) {
pascal@21791 433 if (/ret/) {
pascal@21791 434 print "@1@86:"
pascal@21791 435 isotazboot=0
pascal@21791 436 }
pascal@21791 437 }
pascal@21754 438 if (isotazboot == 5 || isotazboot == 500) { # TAZBOOT.LST
pascal@21750 439 if (/cx,ax/) $0=" xchg ax,bx"
pascal@21754 440 if (/ax,word ptr \[si\+28\]/ && isotazboot == 500) next
pascal@21750 441 if (/bx,cx/) next
pascal@21754 442 if (/push/ || /pop/ || /bp,sp/ || /si,/) next
pascal@21754 443 sub(/\[si/,"[di")
pascal@21754 444 if (/initrd_info/) isotazboot=500
pascal@21791 445 if (/bx\+6\]/) next
pascal@21791 446 if (/bx\+4\]/) sub(/mov dx,/,"les dx,d")
pascal@21791 447 sub(/di\+24\],ax/,"di+24],es")
pascal@21791 448 sub(/call/,"jmp")
pascal@21791 449 if (/ret/ || /pop/ || /^@1@86:/) next
pascal@21791 450 if (/_isostate\+14/) next
pascal@21791 451 if (/_isostate\+12/) {
pascal@21791 452 sub(/mov ax,/,"les ax,d")
pascal@21791 453 print
pascal@21791 454 print " mov dx,es"
pascal@21791 455 next
pascal@21791 456 }
pascal@21791 457 if (/ax,-4/) isotazboot++
pascal@21750 458 }
pascal@21801 459 if (/0x7FF0/) isotazboot=4 # tazboot/bootiso
pascal@21750 460 if (isotazboot == 4) { # TAZBOOT.LST
pascal@21750 461 if (/ax,word ptr/) {
pascal@21750 462 print " mov ax,32752"
pascal@21754 463 print " cwd"
pascal@21750 464 sub(/mov/,"sub")
pascal@21750 465 }
pascal@21750 466 if (/bx,/ || /cx,/ || /dx,/) next
pascal@21754 467 sub(/,0/,",dx")
pascal@21754 468 sub(/,bx/,",dx")
pascal@21750 469 sub(/,cx/,",ax")
pascal@21754 470 if (/@addinitrd\$qv/) isotazboot=0
pascal@21750 471 }
pascal@21801 472 if (/c = x->filename/) isotazboot=3 # tazboot/bootiso
pascal@21750 473 if (isotazboot == 3) { # TAZBOOT.LST
pascal@21750 474 if (/ax,/) $0=" xchg ax,bx"
pascal@21750 475 if (/\]$/) next
pascal@21750 476 if (/@strcpy\$qpxzct1/) isotazboot=0
pascal@21750 477 }
pascal@21801 478 if (/base_himem = memtop/) isotazboot=2 # tazboot/bootiso
pascal@21750 479 if (isotazboot == 2) { # TAZBOOT.LST
pascal@21801 480 if (/word ptr \[si\+2\],0/) {
pascal@21754 481 print s; hold=0
pascal@21801 482 print " mov bx,word ptr [si+2]"
pascal@21752 483 $0=" or bx,bx"
pascal@21752 484 }
pascal@21752 485 if (/\[bp-4\],ax/) sub(/ax/,"bx")
pascal@21801 486 if (/ax,word ptr \[si\+2\]/ || /bx,ax/) next
pascal@21791 487 if (/_base_himem\+2,dx/) {
pascal@21791 488 print " mov bx,offset DGROUP:_base_himem+2"
pascal@21791 489 }
pascal@21791 490 sub(/DGROUP:_base_himem,/,"[bx-2],")
pascal@21791 491 sub(/DGROUP:_base_himem\+2,/,"[bx],")
pascal@21791 492 sub(/DGROUP:_base_himem\+3,/,"[bx+1],")
pascal@21750 493 if (/@strcmp\$qpxzct1/) isotazboot=0
pascal@21750 494 }
pascal@21801 495 if (/static void addinitrd/) isotazboot=100 # tazboot/addinitrd
pascal@21751 496 if (isotazboot == 100) { # TAZBOOT.LST
pascal@21751 497 if (/cx,ax/) {
pascal@21754 498 print " mov si,offset _isostate+8"
pascal@21757 499 print " push ds"
pascal@21757 500 print " pop es"
pascal@21754 501 print " xchg ax,di"
pascal@21751 502 print " movsw"
pascal@21751 503 print " movsw"
pascal@21751 504 print " movsw"
pascal@21751 505 print " movsw"
pascal@21754 506 $0=" xchg ax,di"
pascal@21751 507 }
pascal@21751 508 if (/mov/ && !/si/ && !/cl/) next
pascal@21754 509 if (/void load_initrds/) isotazboot=101
pascal@21751 510 }
pascal@21754 511 if (isotazboot == 101 || isotazboot == 102) { # TAZBOOT.LST
pascal@21754 512 sub(/\[si/,"[di"); sub(/si,/,"di,"); sub(/si$/,"di")
pascal@21754 513 sub(/DGROUP:_imgs\+38$/,"[di+38-32]")
pascal@21754 514 sub(/DGROUP:_imgs\+40$/,"[di+40-32]")
pascal@21754 515 if (/isofd/) isotazboot=102
pascal@21754 516 if (/push/ && isotazboot == 102) next
pascal@21754 517 if (/pop/ && isotazboot == 102) next
pascal@21754 518 if (/load_initrd/) isotazboot=101
pascal@21754 519 if (/isokernel/) isotazboot=103
pascal@21754 520 }
pascal@21754 521 if (isotazboot > 102) { # TAZBOOT.LST
pascal@21754 522 if (/push/ || /pop/) next
pascal@21754 523 sub(/\[si/,"[bx")
pascal@21750 524 sub(/si,/,"bx,")
pascal@21750 525 if (/static void bootiso/) isotazboot=0
pascal@21750 526 }
pascal@21729 527 if (wascall) {
pascal@21729 528 if (rcall != "") {
pascal@21729 529 if (/,ax$/) print " mov " rcall ",ax"
pascal@21729 530 else print " xchg ax," rcall
pascal@21729 531 wascall=0
pascal@21729 532 }
pascal@21729 533 else if (/^ mov .i,ax$/) {
pascal@21729 534 split($2,y,",")
pascal@21729 535 rcall=y[1]
pascal@21729 536 next
pascal@21729 537 }
pascal@21729 538 else wascall=0
pascal@21729 539 }
pascal@21729 540 if (/^ call /) { wascall=1; rcall="" }
pascal@20458 541 if (hold == 0) {
pascal@20458 542 s=$0
pascal@20534 543 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
pascal@20543 544 r=$2; kept=0
pascal@20458 545 hold=1; split($2,regs,","); next
pascal@20458 546 }
pascal@21729 547 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
pascal@20458 548 hold=2; r=$2; next
pascal@20458 549 }
pascal@20458 550 if (/^ mov [abcds][ix],/ && ! /,.s/) {
pascal@20458 551 hold=3; split($2,regs,","); next
pascal@20458 552 }
pascal@20458 553 if (/^ movzx eax,ax$/) { hold=4; next }
pascal@20544 554 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
pascal@20543 555 split($0,regs,",")
pascal@20543 556 if (isnum(regs[2]) && regs[2] != 0 &&
pascal@20543 557 (regs[2] % 256) == 0) {
pascal@20549 558 hold=5; next
pascal@20543 559 }
pascal@20543 560 }
pascal@20630 561 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
pascal@20630 562 if (/^ mov cl,4$/) { hold=7; next }
pascal@20630 563 if (/^ cmp word ptr DGROUP:.*,0$/) {
pascal@20630 564 hold=8; split($2,regs,","); next
pascal@20630 565 }
pascal@20634 566 if (/^ cbw/) { hold=11; kept=0; next }
pascal@20634 567 if (/^ add [abcds][ix],2$/) {
pascal@20634 568 split($2,regs,","); hold=12; next
pascal@20634 569 }
pascal@20634 570 if (/^ sub [abcds][ix],2$/) {
pascal@20634 571 split($2,regs,","); hold=13; next
pascal@20634 572 }
pascal@21569 573 if (/^ push dx$/) {
pascal@21569 574 hold=14; next;
pascal@21569 575 }
pascal@20458 576 }
pascal@20458 577 else if (hold == 1) {
pascal@20543 578 if (/^ ;/) { line[kept++]=$0; next }
pascal@20458 579 hold=0; split($2,args,","); op=""
pascal@20458 580 if ($1 == "add") op="+"
pascal@20458 581 if ($1 == "sub") op="-"
pascal@20751 582 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 583 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20543 584 if (op != "" && regs[1] == args[1]) {
pascal@20543 585 if (isnum(args[2])) {
pascal@20630 586 for (i = kept++; i > 0; i--) line[i] = line[i-1]
pascal@20630 587 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
pascal@20630 588 hold=10; next
pascal@20543 589 }
pascal@20543 590 line[kept++]=$0
pascal@20543 591 hold=1
pascal@20458 592 next
pascal@20458 593 }
pascal@20520 594 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
pascal@20520 595 print " xchg " r
pascal@20520 596 }
pascal@20543 597 else print s
pascal@20543 598 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20458 599 }
pascal@20458 600 else if (hold == 2) {
pascal@21729 601 split($0,args,",")
pascal@21729 602 if (/^ mov / && r == args[2]) { print s; s=$0; next }
pascal@21729 603 split($2,args,",")
pascal@21729 604 hold=0; print s
pascal@20458 605 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
pascal@20458 606 }
pascal@20458 607 else if (hold == 3) {
pascal@20458 608 hold=0
pascal@21576 609 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
pascal@20542 610 if (/^ add [abcds][ix],/) {
pascal@20458 611 split($2,regs2,",")
pascal@20458 612 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
pascal@20549 613 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
pascal@20458 614 print t; print s; next
pascal@20458 615 }
pascal@20458 616 }
pascal@20458 617 print s
pascal@20458 618 }
pascal@20458 619 else if (hold == 4) {
pascal@20458 620 hold=0
pascal@20458 621 if (/^ push eax$/) {
pascal@20458 622 print " push 0"; print " push ax"; next
pascal@20458 623 } else { print s }
pascal@20458 624 }
pascal@20543 625 else if (hold == 5) {
pascal@20543 626 hold=0
pascal@20543 627 if ($1 == "jae" || $1 == "jb") {
pascal@20544 628 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 629 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20543 630 s = s "/256"
pascal@20543 631 }
pascal@20543 632 print s
pascal@20543 633 }
pascal@20630 634 else if (hold == 6) {
pascal@20630 635 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
pascal@20630 636 line[kept++]=$0
pascal@20630 637 next
pascal@20630 638 }
pascal@20630 639 p=$0
pascal@20630 640 if (/^ movzx eax,ax$/) {
pascal@20630 641 s=" mov eax,cs"; p=""
pascal@20630 642 }
pascal@20630 643 print s
pascal@20630 644 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20630 645 if (p != "") print p
pascal@20630 646 hold=0; next
pascal@20630 647 }
pascal@20630 648 else if (hold == 7) {
pascal@20458 649 hold=0
pascal@20520 650 if (/^ call near ptr N_LXURSH@$/) {
pascal@20520 651 print " extrn N_LXURSH@4:near"
pascal@20520 652 print " call near ptr N_LXURSH@4"
pascal@20520 653 next
pascal@20520 654 }
pascal@20528 655 if (/^ call near ptr N_LXLSH@$/) {
pascal@20528 656 print " extrn N_LXLSH@4:near"
pascal@20528 657 print " call near ptr N_LXLSH@4"
pascal@20528 658 next
pascal@20528 659 }
pascal@20520 660 print s
pascal@20458 661 }
pascal@20630 662 else if (hold == 8) {
pascal@20630 663 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
pascal@20630 664 hold=0
pascal@20630 665 print s
pascal@20630 666 }
pascal@20630 667 else if (hold == 9) {
pascal@20630 668 hold=0; split($2,args,",")
pascal@20630 669 if (/^ mov ax,/ && args[2] == regs[1]) {
pascal@20630 670 print; print " or ax,ax"; print p; next
pascal@20630 671 }
pascal@20630 672 print s; print p;
pascal@20630 673 }
pascal@20630 674 else if (hold == 10) {
pascal@20751 675 split($2,args,","); op=""
pascal@20751 676 if ($1 == "add") op="+"
pascal@20751 677 if ($1 == "sub") op="-"
pascal@20751 678 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 679 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20751 680 if (op != "" && isnum(args[2])) {
pascal@20751 681 split(line[0],reg,",")
pascal@20751 682 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
pascal@20751 683 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
pascal@20751 684 next
pascal@20751 685 }
pascal@20751 686 }
pascal@20630 687 hold=0
pascal@20630 688 if (/^ mov [sd]i,ax$/) {
pascal@20630 689 split($2,args,",")
pascal@20630 690 for (i = 0; i < kept; i++) {
pascal@20630 691 sub(/ax/,args[1],line[i]); print line[i]
pascal@20630 692 }
pascal@20630 693 next
pascal@20630 694 }
pascal@20630 695 for (i = 0; i < kept; i++) print line[i]
pascal@20630 696 }
pascal@20634 697 else if (hold == 11) {
pascal@20634 698 if (/^ inc ax$/ || /^ dec ax$/) {
pascal@20634 699 line[kept++]=$0; next
pascal@20634 700 }
pascal@20634 701 split($2,args,",")
pascal@20634 702 if (/^ mov cl,/) {
pascal@20634 703 split($2,args,",")
pascal@20634 704 if (args[2] >= 8) {
pascal@20634 705 line[kept++]=$0; next
pascal@20634 706 }
pascal@20634 707 }
pascal@20634 708 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
pascal@20634 709 print " cbw "
pascal@20634 710 }
pascal@20634 711 for (i = 0; i < kept; i++) print line[i]
pascal@20634 712 hold=kept=0
pascal@20634 713 }
pascal@20634 714 else if (hold == 12) {
pascal@20634 715 hold=0
pascal@20634 716 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 717 print " inc " regs[1]
pascal@20634 718 print " inc " regs[1]
pascal@20634 719 }
pascal@20634 720 else print " add " regs[1] ",2"
pascal@20634 721 }
pascal@20634 722 else if (hold == 13) {
pascal@20634 723 hold=0
pascal@20634 724 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 725 print " dec " regs[1]
pascal@20634 726 print " dec " regs[1]
pascal@20634 727 }
pascal@20634 728 else print " sub " regs[1] ",2"
pascal@20634 729 }
pascal@21569 730 else if (hold == 14) {
pascal@21569 731 if (/^ push ax$/) { hold++; next; }
pascal@21569 732 print " push dx";
pascal@21569 733 hold=0;
pascal@21569 734 }
pascal@21569 735 else if (hold == 15) {
pascal@21569 736 if (/^ pop eax$/) { hold++; next; }
pascal@21569 737 print " push dx";
pascal@21569 738 print " push ax";
pascal@21569 739 hold=0;
pascal@21569 740 }
pascal@21569 741 else if (hold == 16) {
pascal@21569 742 hold=0;
pascal@21569 743 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
pascal@21569 744 print " push dx";
pascal@21569 745 print " push ax";
pascal@21569 746 print " pop eax";
pascal@21569 747 }
pascal@21569 748 else if (hold == 17) {
pascal@21569 749 hold=0;
pascal@21569 750 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
pascal@21569 751 }
pascal@21576 752 if (/^ call near ptr @fileexist\$/ || # return boolean :
pascal@21576 753 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
pascal@21628 754 /^ call near ptr @isoreset\$/ ||
pascal@21628 755 /^ call near ptr @isoopen\$/ ||
pascal@21628 756 /^ call near ptr @isoreadsector\$/ ||
pascal@21628 757 /^ call near ptr @strhead\$/ ||
pascal@21576 758 /^ call near ptr @argstr\$/ ||
pascal@21576 759 /^ call near ptr @argnum\$/) { print; hold=17; next; }
pascal@20458 760 s=$0
pascal@20458 761 # These optimisation may break ZF or CF
pascal@20485 762 if (/^ sub sp,2$/) { print " push ax"; next }
pascal@20485 763 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
pascal@20485 764 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
pascal@20458 765 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
pascal@20458 766 sub(/mov/,"and",s); print s; next # slower
pascal@20458 767 }
pascal@20458 768 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
pascal@20458 769 sub(/mov/,"or",s); print s; next # slower
pascal@20458 770 }
pascal@20458 771 if (/^ or .*,0$/ || /^ and .*,-1$/) next
pascal@20458 772 if (/^ or [abcd]x,/) {
pascal@20458 773 split($2,args,",")
pascal@20458 774 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 775 print " or " substr(args[1],1,1) "l," args[2]; next
pascal@20458 776 }
pascal@20458 777 }
pascal@20458 778 if (/^ and [abcd]x,/) {
pascal@20458 779 split($2,args,",")
pascal@20459 780 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 781 print " and " substr(args[1],1,1) "l," args[2]; next
pascal@20458 782 }
pascal@20458 783 }
pascal@20458 784 if (/^ or e[abcd]x,/) {
pascal@20458 785 split($2,args,",")
pascal@20458 786 if (args[2] == "large") { args[2] = $3 }
pascal@20458 787 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 788 print " or " substr(args[1],2,1) "l," args[2]; next
pascal@20458 789 }
pascal@20458 790 }
pascal@20458 791 if (/^ and e[abcd]x,/) {
pascal@20458 792 split($2,args,",")
pascal@20458 793 if (args[2] == "large") { args[2] = $3 }
pascal@20459 794 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 795 print " and " substr(args[1],2,1) "l," args[2]; next
pascal@20458 796 }
pascal@20458 797 }
pascal@20458 798 if (/^ or e[abcds][ix],/) {
pascal@20458 799 split($2,args,",")
pascal@20458 800 if (args[2] == "large") { args[2] = $3 }
pascal@20458 801 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
pascal@20458 802 print " or " substr(args[1],2) "," args[2]; next
pascal@20458 803 }
pascal@20458 804 }
pascal@20458 805 if (/^ and e[abcds][ix],/) {
pascal@20458 806 split($2,args,",")
pascal@20458 807 if (args[2] == "large") { args[2] = $3 }
pascal@20459 808 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
pascal@20458 809 print " and " substr(args[1],2) "," args[2]; next
pascal@20458 810 }
pascal@20458 811 }
pascal@20543 812 if (/^ add word ptr/ || /^ sub word ptr/ ||
pascal@20544 813 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
pascal@20542 814 split($0,args,",")
pascal@20542 815 if (isnum(args[2]) && (args[2] % 256 == 0)) {
pascal@20544 816 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 817 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20542 818 print s "/256"; next
pascal@20542 819 }
pascal@20542 820 }
pascal@20546 821 if (/^ add dword ptr/ || /^ sub dword ptr/) {
pascal@20458 822 split($0,args,",")
pascal@20543 823 if (args[2] == "large") { args[2] = $3 }
pascal@20458 824 if (isnum(args[2])) {
pascal@20546 825 if (args[2] % 16777216 == 0) {
pascal@20546 826 sub(/dword/,"byte",s)
pascal@20543 827 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
pascal@20458 828 print s "/16777216"; next
pascal@20458 829 }
pascal@20458 830 if (args[2] % 65536 == 0) {
pascal@20546 831 sub(/dword/,"word",s)
pascal@20543 832 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
pascal@20458 833 print s "/65536"; next
pascal@20458 834 }
pascal@20458 835 }
pascal@20458 836 }
pascal@20458 837 if (/^ mov e.x,/) {
pascal@20458 838 split($2,args,",")
pascal@20458 839 r=args[1]
pascal@20458 840 if (args[2] == "large") { args[2] = $3 }
pascal@20458 841 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
pascal@20458 842 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
pascal@20458 843 print " xor " r "," r
pascal@20458 844 if (args[2] == 0) next
pascal@20458 845 x=" mov " substr(r,2,1)
pascal@20458 846 if (args[2] % 256 == 0) {
pascal@20458 847 print x "h," args[2] "/256"
pascal@20458 848 }
pascal@20458 849 else { print x "l," args[2] }
pascal@20458 850 next
pascal@20458 851 }
pascal@20458 852 }
pascal@20458 853 }
pascal@21576 854 if (afterjmp) print ";" $0
pascal@21576 855 else print
pascal@21754 856 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
pascal@21754 857 /^ call near ptr @die$qpxzc/) afterjmp=1
pascal@20458 858 }