wok annotate linld/stuff/src/pipehole.awk @ rev 23988

syslinux: iso2exe/init scan all partitions
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Dec 03 09:39:27 2020 +0000 (2020-12-03)
parents 431c14b76522
children afa00d471293
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@23804 48 if (islinld==5) {
pascal@23808 49 if (/si/ || /word ptr/) next
pascal@23806 50 if (/buf_cmdline/) {
pascal@23806 51 print " lodsw"
pascal@23806 52 islinld=0
pascal@23806 53 }
pascal@23804 54 }
pascal@23806 55 if (/do strcatb/) islinld=5
pascal@21984 56 } # file == "linld.cpp"
pascal@21791 57 if (file == "himem.cpp") {
pascal@21984 58 if (/void load_image/) ishimem=1
pascal@21791 59 if (ishimem == 1 && is386 == 0) {
pascal@21791 60 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
pascal@21791 61 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
pascal@21791 62 if (/si\+12\],ax/ || /si\+16\],ax/ || /bp-2\],ax/) sub(/,ax/,",es")
pascal@21984 63 }
pascal@21984 64 if (ishimem == 1) {
pascal@21984 65 if (/do \{/) ishimem=2
pascal@21984 66 if (/byte ptr DGROUP:_vcpi,0/) print " mov bx,si"
pascal@21984 67 if (/bx,si/) next
pascal@21984 68 if (/sp,6/) {
pascal@21984 69 print " push si"
pascal@21984 70 print " push si"
pascal@21984 71 next
pascal@21984 72 }
pascal@21984 73 }
pascal@21984 74 if (ishimem == 2) {
pascal@21984 75 if (/movzx/) print " cwde"
pascal@21984 76 if (/bp-6/) next
pascal@21984 77 if (/storepage.bufv/) {
pascal@21984 78 print " inc ax"
pascal@21984 79 print " push ax"
pascal@21984 80 }
pascal@21984 81 if (/buf \+= size;/) {
pascal@21984 82 print " pop ax"
pascal@21984 83 }
pascal@21984 84 if (/Read error/) ishimem=0
pascal@21791 85 }
pascal@21791 86 } # file == "himem.cpp"
pascal@21791 87 if (file == "load.cpp") {
pascal@22152 88 if (/i\+21\],513$/) isload=11
pascal@21984 89 if (isload == 12) { # LOAD.LST
pascal@21984 90 if (/cmp/) next
pascal@21984 91 if (/jb/) isload=0
pascal@21984 92 sub(/jb/,"jcxz")
pascal@21984 93 }
pascal@21984 94 if (isload == 11) { # LOAD.LST
pascal@21984 95 if (/cmp/) {
pascal@21984 96 print " mov cx,513"
pascal@22152 97 sub(/cmp /,"sub cx,")
pascal@22152 98 sub(/,513/,"")
pascal@21984 99 }
pascal@21984 100 if (/jb/) isload=12
pascal@21984 101 sub(/jb/,"ja")
pascal@21984 102 }
pascal@22170 103 sub(/_imgs\+65534/,"_imgs-2")
pascal@22152 104 if (/m, _rm_size/) isload=10
pascal@21791 105 if (isload == 10) { # LOAD.LST
pascal@21791 106 if (/^ je /) next
pascal@21791 107 if (/ptr @die\$qpxzc/) {
pascal@21791 108 $0=" jne @die@"
pascal@21791 109 isload=0
pascal@21791 110 }
pascal@21791 111 }
pascal@21791 112 if (/setup_sects == 0/) isload=9
pascal@21791 113 if (isload == 9) { # LOAD.LST
pascal@21791 114 sub(/,0/,",al")
pascal@21791 115 if (/jne/) isload=0
pascal@21791 116 }
pascal@21784 117 if (/fallback\)\[1\] == 0/) isload=8
pascal@21784 118 if (isload == 8) { # LOAD.LST
pascal@21784 119 if (/load_image/) isload=0
pascal@21784 120 else next
pascal@21784 121 }
pascal@21757 122 if (/cmd_line_ptr =/ && is386 == 0) isload=7
pascal@21757 123 if (isload == 7) { # LOAD.LST
pascal@22181 124 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
pascal@22170 125 if (/enable A20 if needed/) { print nextinst; isload=0 }
pascal@22152 126 if (/i-463/) $0=" mov bx,-463"
pascal@22170 127 if (/i-465/) {
pascal@22170 128 sub(/465/,"2"); sub(/\[/,"[bx+")
pascal@22170 129 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
pascal@22170 130 }
pascal@21757 131 if (/,dx/) {
pascal@21757 132 print " mov cl,12"
pascal@21757 133 print " shr ax,cl"
pascal@22181 134 print " mov bx,55"
pascal@21757 135 sub(/dx/,"ax")
pascal@21757 136 }
pascal@21757 137 }
pascal@21757 138 if (/\[0\] = m-\>fallback/) isload=6
pascal@21757 139 if (isload == 6) { # LOAD.LST
pascal@21984 140 if (/si\+2/) $0=" lodsw"
pascal@21757 141 if (/les/) sub(/bx,/,"ax,")
pascal@21757 142 if (/bx\+4/ || /es:/) {
pascal@21757 143 if (/bx\+4/) isload=0
pascal@21757 144 next
pascal@21757 145 }
pascal@21757 146 if (/si\+6/) {
pascal@21757 147 print " xchg ax,di"
pascal@21757 148 print " movsw"
pascal@21757 149 print " movsw"
pascal@21757 150 print " movsw"
pascal@21757 151 print " movsw"
pascal@21757 152 print " xchg ax,di"
pascal@21757 153 next
pascal@21757 154 }
pascal@21757 155 }
pascal@21757 156 if (/version_string = /) isload=5
pascal@21757 157 if (isload == 5) { # LOAD.LST
pascal@21757 158 sub(/ax,/,"bx,")
pascal@21757 159 if (/_version_string,/) isload=0
pascal@21757 160 if (/mov bx,ax/) next
pascal@21757 161 }
pascal@22180 162 if (/_base_himem\+2/ && is386 == 0) isload=4
pascal@22180 163 if (isload == 4) { # LOAD.LST
pascal@22180 164 if (/_base_himem\+2/) next
pascal@22180 165 if (/_base_himem$/) {
pascal@22180 166 sub(/mov dx,/,"les dx,d")
pascal@21757 167 }
pascal@21791 168 sub(/,ax/,",es")
pascal@22181 169 if (/add ax,word ptr/) $0=" add ax,cx"
pascal@22181 170 if (/i\+29\],0/) {
pascal@22181 171 sub(/,0$/,"")
pascal@22181 172 sub(/cmp /,"mov cx,")
pascal@22181 173 }
pascal@22181 174 sub(/je/,"jcxz")
pascal@22181 175 if (/@strcpy/) isload=0
pascal@21757 176 }
pascal@21754 177 if (/void load_initrd\(\)/) isload=3
pascal@21754 178 if (isload == 3) { # LOAD.LST
pascal@21754 179 if(/push di/ || /pop di/) next
pascal@21754 180 sub(/\[di/,"[bx")
pascal@21754 181 sub(/\di,/,"bx,")
pascal@21754 182 }
pascal@21750 183 if (/vid_mode = vid_mode/) isload=2
pascal@21750 184 if (isload == 2) { # LOAD.LST
pascal@21750 185 sub(/,0/,""); sub(/cmp /,"mov cx,")
pascal@21750 186 sub(/je/,"jcxz")
pascal@21750 187 if (/ax,word/) next
pascal@21750 188 sub(/,ax/,",cx")
pascal@21757 189 if (/version_string/ || /starting linux 1\.3\.73/) isload=0
pascal@21750 190 }
pascal@22677 191 if (/die\(not_kernel/ || /_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
pascal@21750 192 if (isload == 1) { # LOAD.LST
pascal@21791 193 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
pascal@21729 194 if (/mov al,byte ptr/ && is386) {
pascal@22152 195 sub(/mov al/,"movzx eax")
pascal@21729 196 }
pascal@21791 197 if (is386 == 0) {
pascal@22152 198 if (/m->size -= _rm_size/) print " cwd"
pascal@21791 199 sub(/,0$/,",dx")
pascal@21791 200 }
pascal@21729 201 if (/ax,word ptr/) next
pascal@21729 202 if (/^ call/) isload=0
pascal@21729 203 }
pascal@21791 204 } # file == "load.cpp"
pascal@21791 205 if (file == "iso9660.cpp") {
pascal@23988 206 if (/p = x->buffer \+ 34/) isiso=13
pascal@23988 207 if (isiso == 13) { # ISO9660.LST
pascal@23988 208 if (/di,si/) $0=" xchg ax,bx"
pascal@23988 209 if (/di,ax/) $0=" lea di,[si+bx+70]"
pascal@23988 210 if (/di,70/) {
pascal@23988 211 isiso=0
pascal@23988 212 next
pascal@23988 213 }
pascal@23988 214 }
pascal@23870 215 if (/register len/) isiso=12
pascal@23870 216 if (isiso == 12) { # ISO9660.LST
pascal@23870 217 sub(/mov dx,ax/,"xchg ax,bx")
pascal@23870 218 if (/bx,dx/) next
pascal@23870 219 sub(/i,dx/,"i,bx")
pascal@23870 220 if (/while/) isiso=0
pascal@23870 221 }
pascal@23864 222 if (/while \(\*\+\+s/) isiso=11
pascal@23864 223 if (isiso == 11) { # ISO9660.LST
pascal@23864 224 if (/cmp/ || /filename2open/) isiso=0
pascal@23864 225 if (/cmp/) next
pascal@23864 226 if (/mov/) {
pascal@23864 227 sub(/mov bx,/,"cmp byte ptr [")
pascal@23864 228 sub(/i$/,"i],0")
pascal@23864 229 }
pascal@23864 230 }
pascal@23863 231 if (/curpos >= SECT/) isiso=10
pascal@23863 232 if (isiso == 10) { # ISO9660.LST
pascal@23863 233 if (/cmp/) {
pascal@23863 234 sub(/cmp /,"mov bx,")
pascal@23863 235 sub(/i.*/,"i]")
pascal@23863 236 print
pascal@23863 237 $0=" cmp bh,2048/256"
pascal@23863 238 }
pascal@23863 239 if (/mov/) {
pascal@23863 240 isiso=0
pascal@23863 241 next
pascal@23863 242 }
pascal@23863 243 }
pascal@21791 244 if (/<< SECTORBITS/) isiso=9
pascal@21791 245 if (isiso == 9) { # ISO9660.LST
pascal@21791 246 if (/dx,/) next
pascal@21791 247 sub(/mov ax,/,"les ax,d")
pascal@21791 248 if (/^ call/) {
pascal@21791 249 print " extrn N_LXLSH@ES:near"
pascal@21791 250 sub(/N_LXLSH@/,"N_LXLSH@ES")
pascal@21791 251 isiso=0
pascal@21791 252 }
pascal@21791 253 }
pascal@21791 254 if (/filesize =/) isiso=8
pascal@21791 255 if (isiso == 8) { # ISO9660.LST
pascal@21791 256 if (/ax,/) next
pascal@21791 257 sub(/mov dx,/,"les dx,d")
pascal@21791 258 sub(/,ax/,",es")
pascal@21791 259 if (/filemod/) isiso=0
pascal@21791 260 }
pascal@21754 261 if (/CD001/) isiso=7
pascal@21754 262 if (isiso == 7) { # ISO9660.LST
pascal@21754 263 sub(/mov ax,-1/,"dec ax")
pascal@21754 264 if (/jmp/) isiso=0
pascal@21754 265 }
pascal@21754 266 if (/int len =/) isiso=6
pascal@21754 267 if (isiso == 6) { # ISO9660.LST
pascal@21754 268 if (/dx,ax/) next
pascal@21754 269 sub(/ax/,"dx")
pascal@21754 270 sub(/cx,di/,"bx,di")
pascal@21754 271 sub(/cx,dx/,"bx,ax")
pascal@21754 272 sub(/di,dx/,"di,ax")
pascal@21754 273 if (/while/) isiso=2
pascal@21754 274 }
pascal@21754 275 if (/entrysize =/) isiso=5
pascal@21754 276 if (isiso == 5) { # ISO9660.LST
pascal@21754 277 if (/ax,ax/) next
pascal@21754 278 sub(/ax/,"cx")
pascal@21754 279 sub(/je/,"jcxz")
pascal@21754 280 if (/return/) isiso=0
pascal@21754 281 }
pascal@21735 282 if (/x->curdirsize == 0xFFFF/) isiso=4
pascal@21735 283 if (isiso == 4) { # ISO9660.LST
pascal@21754 284 sub(/DGROUP:_isostate\+18/,"[si+18]")
pascal@21754 285 sub(/DGROUP:_isostate\+20/,"[si+20]")
pascal@21747 286 if (/goto restarted/) isiso=0
pascal@21735 287 }
pascal@21791 288 } # file == "iso9660.cpp"
pascal@21791 289 if (file == "iso9660.cpp" || file == "tazboot.cpp") {
pascal@21754 290 if (/do s\+\+; while/) isiso=3
pascal@21801 291 if (/for \(p = s; \*s && \*s \!=/) isiso=3 # tazboot/main
pascal@21750 292 if (isiso == 3) { # ISO9660.LST, TAZBOOT.LST
pascal@21754 293 sub(/cmp byte ptr \[.i\]/,"sub al")
pascal@21754 294 if (/mov byte ptr \[bp-5\],al/) $0=" push ax"
pascal@21754 295 if (/mov al,byte ptr \[bp-5\]/) $0=" pop ax"
pascal@21754 296 if (/inc /) { r=$2; print; next }
pascal@21754 297 if (/al,0/) print " mov al,[" r "]"
pascal@21754 298 if (/al,byte ptr/) sub(/mov/,"xchg")
pascal@21754 299 if (/byte ptr \[.*\],0/) next
pascal@21791 300 if (/jmp/) {
pascal@21791 301 print " mov bx,si"
pascal@21791 302 $0=" db 0A8h ; test al,xx instead of " $0
pascal@21791 303 }
pascal@21754 304 if (/word ptr \[bp-4\]/) next
pascal@21754 305 if (/\) s\+\+;/ || /\],-1/) isiso=0
pascal@21735 306 }
pascal@21791 307 } # file == "iso9660.cpp" || file == "tazboot.cpp"
pascal@21791 308 if (file == "iso9660.cpp") {
pascal@21735 309 if (/endname = NULL/) isiso=2
pascal@21735 310 if (isiso == 2) { # ISO9660.LST
pascal@21735 311 if (/mov bx,cx/) next
pascal@21735 312 gsub(/cx/,"bx")
pascal@21754 313 sub(/DGROUP:_isostate\+35/,"[si+35]")
pascal@21735 314 }
pascal@21735 315 if (/const char \*n = name/) isiso=1
pascal@21735 316 if (isiso == 1) { # ISO9660.LST
pascal@21735 317 if ((/mov word ptr \[si\+32\],ax/ ) ||
pascal@21754 318 (/mov ax,word ptr \[si\+2\]/) ||
pascal@21735 319 (/bx,word ptr \[si\+32\]/) || (/ax,dx/)) next
pascal@21729 320 if (/dx,/) sub(/dx/,"ax")
pascal@21754 321 if ((/sub ax,word ptr \[si\+2\]/) ||
pascal@21754 322 (/\[si\+16\]/) || (/ax,di/)) sub(/ax/,"bx")
pascal@21754 323 if (/add word ptr \[si\+32\],ax/) $0=" add bx,word ptr [si+16]"
pascal@21735 324 if (/al,/ || /,al/) sub(/al/,"cl")
pascal@21754 325 if (/cmp byte ptr \[si\+34\],0/) $0=" or cl,cl"
pascal@21735 326 if (/jne @@0$/) next
pascal@23984 327 if (/jmp @.@58$/) sub(/jmp/,"je")
pascal@21754 328 sub(/mov ax,-1/,"dec ax")
pascal@21754 329 }
pascal@21791 330 } # file == "iso9660.cpp"
pascal@21754 331 if (/endp/) { xlabel = ""; goto2=0 }
pascal@21801 332 if (/isoopen\(s\+7\)/ && xlabel == "") goto2=1 # tazboot/bootiso
pascal@21801 333 if (/_vid_mode,ax/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 334 if (/_initrd_name,si/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 335 if (/_base_himem\+2,/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21801 336 if (/DGROUP:_skip_alloc/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21754 337 if (/puts\(cmdline\)/ && xlabel == "@@") goto2=1
pascal@21754 338 if (goto2 == 1 && /jmp/) { # TAZBOOT.LST && LINLD.LST
pascal@21754 339 print $NF xlabel "@:"
pascal@21754 340 label=$NF
pascal@21754 341 }
pascal@21754 342 if (goto2 > 0 && label == $NF) {
pascal@21754 343 $0=$0 xlabel
pascal@21754 344 if (goto2++ == 1) xlabel=xlabel "@"
pascal@21754 345 }
pascal@21801 346 if (file == "tazboot.cpp" && /close\(x/) isotazboot=16
pascal@21801 347 if (isotazboot == 160) { # TAZBOOT.LST
pascal@21801 348 $0="; " $0
pascal@21801 349 if (/ret/) isotazboot=0
pascal@21801 350 }
pascal@21801 351 if (isotazboot == 16) { # TAZBOOT.LST
pascal@21801 352 if (/@.@/) {
pascal@21801 353 isotazboot=160
pascal@21801 354 next
pascal@21801 355 }
pascal@21801 356 }
pascal@21801 357 if (file == "tazboot.cpp" && /jne @@2/) isotazboot=15
pascal@21801 358 if (isotazboot == 15) { # TAZBOOT.LST
pascal@21801 359 if (/@.@/) {
pascal@21801 360 print " pop di"
pascal@21801 361 print " pop si"
pascal@21801 362 print " mov sp,bp"
pascal@21801 363 print " pop bp"
pascal@21801 364 print " ret"
pascal@21801 365 next
pascal@21801 366 }
pascal@21801 367 if (/skip_alloc/) isotazboot=0
pascal@21801 368 }
pascal@21791 369 if (/if\(\*s>=/) isotazboot=14
pascal@21791 370 if (isotazboot == 14) { # LINLD.LST
pascal@21791 371 if (/jmp/) {
pascal@21791 372 $0=" db 0A9h ; test ax,xxxx instead of " $0
pascal@21791 373 isotazboot=0
pascal@21791 374 }
pascal@21791 375 }
pascal@21801 376 if (file == "tazboot.cpp" && /; s \+= 4/) isotazboot=13 # tazboot/main
pascal@21791 377 if (isotazboot == 13) { # TAZBOOT.LST
pascal@21791 378 if (/si,4/) $0=" lea bx,[si+4]"
pascal@21791 379 if (/bx,si/) next
pascal@21791 380 if (/DGROUP:_topmem/ || /set_iso/) isotazboot=0
pascal@21791 381 }
pascal@21801 382 if (file == "tazboot.cpp" && /case 0x652F:/) isotazboot=12 # tazboot/main
pascal@21791 383 if (isotazboot == 12) { # TAZBOOT.LST
pascal@21791 384 sub(/si,word/,"bx,word")
pascal@21791 385 if (/short/) isotazboot=0
pascal@21791 386 }
pascal@21801 387 if (/return load_kernel/) isotazboot=11 # tazboot/isokernel
pascal@21791 388 if (isotazboot == 11) { # TAZBOOT.LST
pascal@21791 389 sub(/call/,"jmp")
pascal@21791 390 if (/ret/ || /pop/) next
pascal@21791 391 if (/endp/) isotazboot=0
pascal@21791 392 }
pascal@21801 393 if (/cmdline=s\+=3/ || /magic \!= 0/ || /&root_dev =/) { isotazboot=10; j="" } # ,tazboot/bootiso,tazboot/main
pascal@21754 394 if (isotazboot == 10) { # TAZBOOT.LST && LINLD.LST
pascal@21754 395 if (/je/ || /jne/) { j=$1; next }
pascal@21754 396 if (/jmp/) {
pascal@21754 397 if (j=="jne") sub(/jmp/,"je")
pascal@21754 398 else if (j=="je") sub(/jmp/,"jne")
pascal@21754 399 isotazboot=0
pascal@21754 400 }
pascal@21754 401 }
pascal@21801 402 if (/static const unsigned long initrddesc = 18L/) isotazboot=9 # tazboot/bootiso
pascal@21754 403 if (isotazboot == 9) { # TAZBOOT.LST
pascal@21754 404 if (/,0/) {
pascal@21754 405 split($4,y,",")
pascal@21754 406 print " mov bx,offset " y[1]
pascal@21801 407 sub(/DGROUP:.*,/,"[bx],")
pascal@21754 408 }
pascal@21801 409 if (/mov/ && $3 == y[1]) next
pascal@21801 410 if (/je/) next
pascal@21801 411 if (/jmp/) sub(/jmp/,"jne")
pascal@21801 412 sub(/ax,offset/,"bx,offset")
pascal@21801 413 if (/bx,ax/) { isotazboot=0; next }
pascal@21729 414 }
pascal@21801 415 if (/isoopen\(s\+7\) != -1/) isotazboot=8 # tazboot/bootiso
pascal@21750 416 if (isotazboot == 8) { # TAZBOOT.LST
pascal@21801 417 sub(/\[bx/,"[si")
pascal@21801 418 if (/bx,si/) next
pascal@21750 419 if (/magic/) isotazboot=0
pascal@21750 420 }
pascal@21801 421 if (/isoopen\(\"bzImage\"\)/) isotazboot=7 # tazboot/bootiso
pascal@21750 422 if (isotazboot == 7) { # TAZBOOT.LST
pascal@21791 423 if (/inc/ || /,al/) next
pascal@21791 424 if (/al,byte/) sub (/mov al,/,"inc ")
pascal@21750 425 if (/isokernel/) isotazboot=0
pascal@21750 426 }
pascal@21801 427 if (/if \(c\) s\+\+;/) isotazboot=6 # tazboot/main
pascal@21750 428 if (isotazboot == 6) { # TAZBOOT.LST
pascal@21750 429 if (/cmp/) {
pascal@21750 430 $0=" cmp al,0"
pascal@21750 431 isotazboot=0
pascal@21750 432 }
pascal@21750 433 }
pascal@21801 434 if (/static void next_chunk/) isotazboot=5 # tazboot/next_chunk
pascal@21791 435 if (isotazboot == 501) {
pascal@21791 436 if (/ret/) {
pascal@21791 437 print "@1@86:"
pascal@21791 438 isotazboot=0
pascal@21791 439 }
pascal@21791 440 }
pascal@21754 441 if (isotazboot == 5 || isotazboot == 500) { # TAZBOOT.LST
pascal@21750 442 if (/cx,ax/) $0=" xchg ax,bx"
pascal@21754 443 if (/ax,word ptr \[si\+28\]/ && isotazboot == 500) next
pascal@21750 444 if (/bx,cx/) next
pascal@21754 445 if (/push/ || /pop/ || /bp,sp/ || /si,/) next
pascal@21754 446 sub(/\[si/,"[di")
pascal@21754 447 if (/initrd_info/) isotazboot=500
pascal@21791 448 if (/bx\+6\]/) next
pascal@21791 449 if (/bx\+4\]/) sub(/mov dx,/,"les dx,d")
pascal@21791 450 sub(/di\+24\],ax/,"di+24],es")
pascal@21791 451 sub(/call/,"jmp")
pascal@21791 452 if (/ret/ || /pop/ || /^@1@86:/) next
pascal@21791 453 if (/_isostate\+14/) next
pascal@21791 454 if (/_isostate\+12/) {
pascal@21791 455 sub(/mov ax,/,"les ax,d")
pascal@21791 456 print
pascal@21791 457 print " mov dx,es"
pascal@21791 458 next
pascal@21791 459 }
pascal@21791 460 if (/ax,-4/) isotazboot++
pascal@21750 461 }
pascal@21801 462 if (/0x7FF0/) isotazboot=4 # tazboot/bootiso
pascal@21750 463 if (isotazboot == 4) { # TAZBOOT.LST
pascal@21750 464 if (/ax,word ptr/) {
pascal@21750 465 print " mov ax,32752"
pascal@21754 466 print " cwd"
pascal@21750 467 sub(/mov/,"sub")
pascal@21750 468 }
pascal@21750 469 if (/bx,/ || /cx,/ || /dx,/) next
pascal@21754 470 sub(/,0/,",dx")
pascal@21754 471 sub(/,bx/,",dx")
pascal@21750 472 sub(/,cx/,",ax")
pascal@21754 473 if (/@addinitrd\$qv/) isotazboot=0
pascal@21750 474 }
pascal@21801 475 if (/c = x->filename/) isotazboot=3 # tazboot/bootiso
pascal@21750 476 if (isotazboot == 3) { # TAZBOOT.LST
pascal@21750 477 if (/ax,/) $0=" xchg ax,bx"
pascal@21750 478 if (/\]$/) next
pascal@21750 479 if (/@strcpy\$qpxzct1/) isotazboot=0
pascal@21750 480 }
pascal@21801 481 if (/base_himem = memtop/) isotazboot=2 # tazboot/bootiso
pascal@21750 482 if (isotazboot == 2) { # TAZBOOT.LST
pascal@21801 483 if (/word ptr \[si\+2\],0/) {
pascal@21754 484 print s; hold=0
pascal@21801 485 print " mov bx,word ptr [si+2]"
pascal@21752 486 $0=" or bx,bx"
pascal@21752 487 }
pascal@21752 488 if (/\[bp-4\],ax/) sub(/ax/,"bx")
pascal@21801 489 if (/ax,word ptr \[si\+2\]/ || /bx,ax/) next
pascal@21791 490 if (/_base_himem\+2,dx/) {
pascal@21791 491 print " mov bx,offset DGROUP:_base_himem+2"
pascal@21791 492 }
pascal@21791 493 sub(/DGROUP:_base_himem,/,"[bx-2],")
pascal@21791 494 sub(/DGROUP:_base_himem\+2,/,"[bx],")
pascal@21791 495 sub(/DGROUP:_base_himem\+3,/,"[bx+1],")
pascal@21750 496 if (/@strcmp\$qpxzct1/) isotazboot=0
pascal@21750 497 }
pascal@21801 498 if (/static void addinitrd/) isotazboot=100 # tazboot/addinitrd
pascal@21751 499 if (isotazboot == 100) { # TAZBOOT.LST
pascal@21751 500 if (/cx,ax/) {
pascal@21754 501 print " mov si,offset _isostate+8"
pascal@21757 502 print " push ds"
pascal@21757 503 print " pop es"
pascal@21754 504 print " xchg ax,di"
pascal@21751 505 print " movsw"
pascal@21751 506 print " movsw"
pascal@21751 507 print " movsw"
pascal@21751 508 print " movsw"
pascal@21754 509 $0=" xchg ax,di"
pascal@21751 510 }
pascal@21751 511 if (/mov/ && !/si/ && !/cl/) next
pascal@21754 512 if (/void load_initrds/) isotazboot=101
pascal@21751 513 }
pascal@21754 514 if (isotazboot == 101 || isotazboot == 102) { # TAZBOOT.LST
pascal@21754 515 sub(/\[si/,"[di"); sub(/si,/,"di,"); sub(/si$/,"di")
pascal@21754 516 sub(/DGROUP:_imgs\+38$/,"[di+38-32]")
pascal@21754 517 sub(/DGROUP:_imgs\+40$/,"[di+40-32]")
pascal@21754 518 if (/isofd/) isotazboot=102
pascal@21754 519 if (/push/ && isotazboot == 102) next
pascal@21754 520 if (/pop/ && isotazboot == 102) next
pascal@21754 521 if (/load_initrd/) isotazboot=101
pascal@21754 522 if (/isokernel/) isotazboot=103
pascal@21754 523 }
pascal@21754 524 if (isotazboot > 102) { # TAZBOOT.LST
pascal@21754 525 if (/push/ || /pop/) next
pascal@21754 526 sub(/\[si/,"[bx")
pascal@21750 527 sub(/si,/,"bx,")
pascal@21750 528 if (/static void bootiso/) isotazboot=0
pascal@21750 529 }
pascal@21729 530 if (wascall) {
pascal@21729 531 if (rcall != "") {
pascal@21729 532 if (/,ax$/) print " mov " rcall ",ax"
pascal@21729 533 else print " xchg ax," rcall
pascal@21729 534 wascall=0
pascal@21729 535 }
pascal@21729 536 else if (/^ mov .i,ax$/) {
pascal@21729 537 split($2,y,",")
pascal@21729 538 rcall=y[1]
pascal@21729 539 next
pascal@21729 540 }
pascal@21729 541 else wascall=0
pascal@21729 542 }
pascal@21729 543 if (/^ call /) { wascall=1; rcall="" }
pascal@20458 544 if (hold == 0) {
pascal@20458 545 s=$0
pascal@20534 546 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
pascal@20543 547 r=$2; kept=0
pascal@20458 548 hold=1; split($2,regs,","); next
pascal@20458 549 }
pascal@21729 550 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
pascal@20458 551 hold=2; r=$2; next
pascal@20458 552 }
pascal@20458 553 if (/^ mov [abcds][ix],/ && ! /,.s/) {
pascal@20458 554 hold=3; split($2,regs,","); next
pascal@20458 555 }
pascal@20458 556 if (/^ movzx eax,ax$/) { hold=4; next }
pascal@20544 557 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
pascal@20543 558 split($0,regs,",")
pascal@20543 559 if (isnum(regs[2]) && regs[2] != 0 &&
pascal@20543 560 (regs[2] % 256) == 0) {
pascal@20549 561 hold=5; next
pascal@20543 562 }
pascal@20543 563 }
pascal@20630 564 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
pascal@20630 565 if (/^ mov cl,4$/) { hold=7; next }
pascal@20630 566 if (/^ cmp word ptr DGROUP:.*,0$/) {
pascal@20630 567 hold=8; split($2,regs,","); next
pascal@20630 568 }
pascal@20634 569 if (/^ cbw/) { hold=11; kept=0; next }
pascal@20634 570 if (/^ add [abcds][ix],2$/) {
pascal@20634 571 split($2,regs,","); hold=12; next
pascal@20634 572 }
pascal@20634 573 if (/^ sub [abcds][ix],2$/) {
pascal@20634 574 split($2,regs,","); hold=13; next
pascal@20634 575 }
pascal@21569 576 if (/^ push dx$/) {
pascal@21569 577 hold=14; next;
pascal@21569 578 }
pascal@20458 579 }
pascal@20458 580 else if (hold == 1) {
pascal@20543 581 if (/^ ;/) { line[kept++]=$0; next }
pascal@20458 582 hold=0; split($2,args,","); op=""
pascal@20458 583 if ($1 == "add") op="+"
pascal@20458 584 if ($1 == "sub") op="-"
pascal@20751 585 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 586 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20543 587 if (op != "" && regs[1] == args[1]) {
pascal@20543 588 if (isnum(args[2])) {
pascal@20630 589 for (i = kept++; i > 0; i--) line[i] = line[i-1]
pascal@20630 590 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
pascal@22288 591 sub(/\+-/,"-",line[0])
pascal@20630 592 hold=10; next
pascal@20543 593 }
pascal@20543 594 line[kept++]=$0
pascal@20543 595 hold=1
pascal@20458 596 next
pascal@20458 597 }
pascal@20520 598 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
pascal@20520 599 print " xchg " r
pascal@20520 600 }
pascal@20543 601 else print s
pascal@20543 602 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20458 603 }
pascal@20458 604 else if (hold == 2) {
pascal@21729 605 split($0,args,",")
pascal@21729 606 if (/^ mov / && r == args[2]) { print s; s=$0; next }
pascal@21729 607 split($2,args,",")
pascal@21729 608 hold=0; print s
pascal@20458 609 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
pascal@20458 610 }
pascal@20458 611 else if (hold == 3) {
pascal@20458 612 hold=0
pascal@21576 613 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
pascal@20542 614 if (/^ add [abcds][ix],/) {
pascal@20458 615 split($2,regs2,",")
pascal@20458 616 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
pascal@20549 617 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
pascal@20458 618 print t; print s; next
pascal@20458 619 }
pascal@20458 620 }
pascal@20458 621 print s
pascal@20458 622 }
pascal@20458 623 else if (hold == 4) {
pascal@20458 624 hold=0
pascal@20458 625 if (/^ push eax$/) {
pascal@20458 626 print " push 0"; print " push ax"; next
pascal@20458 627 } else { print s }
pascal@20458 628 }
pascal@20543 629 else if (hold == 5) {
pascal@20543 630 hold=0
pascal@20543 631 if ($1 == "jae" || $1 == "jb") {
pascal@20544 632 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 633 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20543 634 s = s "/256"
pascal@20543 635 }
pascal@20543 636 print s
pascal@20543 637 }
pascal@20630 638 else if (hold == 6) {
pascal@20630 639 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
pascal@20630 640 line[kept++]=$0
pascal@20630 641 next
pascal@20630 642 }
pascal@20630 643 p=$0
pascal@20630 644 if (/^ movzx eax,ax$/) {
pascal@20630 645 s=" mov eax,cs"; p=""
pascal@20630 646 }
pascal@20630 647 print s
pascal@20630 648 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20630 649 if (p != "") print p
pascal@20630 650 hold=0; next
pascal@20630 651 }
pascal@20630 652 else if (hold == 7) {
pascal@20458 653 hold=0
pascal@20520 654 if (/^ call near ptr N_LXURSH@$/) {
pascal@20520 655 print " extrn N_LXURSH@4:near"
pascal@20520 656 print " call near ptr N_LXURSH@4"
pascal@20520 657 next
pascal@20520 658 }
pascal@20528 659 if (/^ call near ptr N_LXLSH@$/) {
pascal@20528 660 print " extrn N_LXLSH@4:near"
pascal@20528 661 print " call near ptr N_LXLSH@4"
pascal@20528 662 next
pascal@20528 663 }
pascal@20520 664 print s
pascal@20458 665 }
pascal@20630 666 else if (hold == 8) {
pascal@20630 667 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
pascal@20630 668 hold=0
pascal@20630 669 print s
pascal@20630 670 }
pascal@20630 671 else if (hold == 9) {
pascal@20630 672 hold=0; split($2,args,",")
pascal@20630 673 if (/^ mov ax,/ && args[2] == regs[1]) {
pascal@20630 674 print; print " or ax,ax"; print p; next
pascal@20630 675 }
pascal@20630 676 print s; print p;
pascal@20630 677 }
pascal@20630 678 else if (hold == 10) {
pascal@20751 679 split($2,args,","); op=""
pascal@20751 680 if ($1 == "add") op="+"
pascal@20751 681 if ($1 == "sub") op="-"
pascal@20751 682 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 683 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20751 684 if (op != "" && isnum(args[2])) {
pascal@20751 685 split(line[0],reg,",")
pascal@20751 686 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
pascal@20751 687 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
pascal@20751 688 next
pascal@20751 689 }
pascal@20751 690 }
pascal@20630 691 hold=0
pascal@20630 692 if (/^ mov [sd]i,ax$/) {
pascal@20630 693 split($2,args,",")
pascal@20630 694 for (i = 0; i < kept; i++) {
pascal@20630 695 sub(/ax/,args[1],line[i]); print line[i]
pascal@20630 696 }
pascal@20630 697 next
pascal@20630 698 }
pascal@20630 699 for (i = 0; i < kept; i++) print line[i]
pascal@20630 700 }
pascal@20634 701 else if (hold == 11) {
pascal@20634 702 if (/^ inc ax$/ || /^ dec ax$/) {
pascal@20634 703 line[kept++]=$0; next
pascal@20634 704 }
pascal@20634 705 split($2,args,",")
pascal@20634 706 if (/^ mov cl,/) {
pascal@20634 707 split($2,args,",")
pascal@20634 708 if (args[2] >= 8) {
pascal@20634 709 line[kept++]=$0; next
pascal@20634 710 }
pascal@20634 711 }
pascal@20634 712 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
pascal@20634 713 print " cbw "
pascal@20634 714 }
pascal@20634 715 for (i = 0; i < kept; i++) print line[i]
pascal@20634 716 hold=kept=0
pascal@20634 717 }
pascal@20634 718 else if (hold == 12) {
pascal@20634 719 hold=0
pascal@20634 720 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 721 print " inc " regs[1]
pascal@20634 722 print " inc " regs[1]
pascal@20634 723 }
pascal@20634 724 else print " add " regs[1] ",2"
pascal@20634 725 }
pascal@20634 726 else if (hold == 13) {
pascal@20634 727 hold=0
pascal@20634 728 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 729 print " dec " regs[1]
pascal@20634 730 print " dec " regs[1]
pascal@20634 731 }
pascal@20634 732 else print " sub " regs[1] ",2"
pascal@20634 733 }
pascal@21569 734 else if (hold == 14) {
pascal@21569 735 if (/^ push ax$/) { hold++; next; }
pascal@21569 736 print " push dx";
pascal@21569 737 hold=0;
pascal@21569 738 }
pascal@21569 739 else if (hold == 15) {
pascal@21569 740 if (/^ pop eax$/) { hold++; next; }
pascal@21569 741 print " push dx";
pascal@21569 742 print " push ax";
pascal@21569 743 hold=0;
pascal@21569 744 }
pascal@21569 745 else if (hold == 16) {
pascal@21569 746 hold=0;
pascal@21569 747 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
pascal@21569 748 print " push dx";
pascal@21569 749 print " push ax";
pascal@21569 750 print " pop eax";
pascal@21569 751 }
pascal@21569 752 else if (hold == 17) {
pascal@21569 753 hold=0;
pascal@21569 754 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
pascal@21569 755 }
pascal@21576 756 if (/^ call near ptr @fileexist\$/ || # return boolean :
pascal@21576 757 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
pascal@21628 758 /^ call near ptr @isoreset\$/ ||
pascal@21628 759 /^ call near ptr @isoopen\$/ ||
pascal@21628 760 /^ call near ptr @isoreadsector\$/ ||
pascal@21628 761 /^ call near ptr @strhead\$/ ||
pascal@23984 762 /^ call near ptr @strcmp\$/ ||
pascal@21576 763 /^ call near ptr @argstr\$/ ||
pascal@21576 764 /^ call near ptr @argnum\$/) { print; hold=17; next; }
pascal@20458 765 s=$0
pascal@20458 766 # These optimisation may break ZF or CF
pascal@20485 767 if (/^ sub sp,2$/) { print " push ax"; next }
pascal@20485 768 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
pascal@20485 769 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
pascal@20458 770 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
pascal@20458 771 sub(/mov/,"and",s); print s; next # slower
pascal@20458 772 }
pascal@20458 773 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
pascal@20458 774 sub(/mov/,"or",s); print s; next # slower
pascal@20458 775 }
pascal@20458 776 if (/^ or .*,0$/ || /^ and .*,-1$/) next
pascal@20458 777 if (/^ or [abcd]x,/) {
pascal@20458 778 split($2,args,",")
pascal@20458 779 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 780 print " or " substr(args[1],1,1) "l," args[2]; next
pascal@20458 781 }
pascal@20458 782 }
pascal@20458 783 if (/^ and [abcd]x,/) {
pascal@20458 784 split($2,args,",")
pascal@20459 785 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 786 print " and " substr(args[1],1,1) "l," args[2]; next
pascal@20458 787 }
pascal@20458 788 }
pascal@20458 789 if (/^ or e[abcd]x,/) {
pascal@20458 790 split($2,args,",")
pascal@20458 791 if (args[2] == "large") { args[2] = $3 }
pascal@20458 792 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 793 print " or " substr(args[1],2,1) "l," args[2]; next
pascal@20458 794 }
pascal@20458 795 }
pascal@20458 796 if (/^ and e[abcd]x,/) {
pascal@20458 797 split($2,args,",")
pascal@20458 798 if (args[2] == "large") { args[2] = $3 }
pascal@20459 799 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 800 print " and " substr(args[1],2,1) "l," args[2]; next
pascal@20458 801 }
pascal@20458 802 }
pascal@20458 803 if (/^ or e[abcds][ix],/) {
pascal@20458 804 split($2,args,",")
pascal@20458 805 if (args[2] == "large") { args[2] = $3 }
pascal@20458 806 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
pascal@20458 807 print " or " substr(args[1],2) "," args[2]; next
pascal@20458 808 }
pascal@20458 809 }
pascal@20458 810 if (/^ and e[abcds][ix],/) {
pascal@20458 811 split($2,args,",")
pascal@20458 812 if (args[2] == "large") { args[2] = $3 }
pascal@20459 813 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
pascal@20458 814 print " and " substr(args[1],2) "," args[2]; next
pascal@20458 815 }
pascal@20458 816 }
pascal@20543 817 if (/^ add word ptr/ || /^ sub word ptr/ ||
pascal@20544 818 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
pascal@20542 819 split($0,args,",")
pascal@20542 820 if (isnum(args[2]) && (args[2] % 256 == 0)) {
pascal@20544 821 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 822 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20542 823 print s "/256"; next
pascal@20542 824 }
pascal@20542 825 }
pascal@20546 826 if (/^ add dword ptr/ || /^ sub dword ptr/) {
pascal@20458 827 split($0,args,",")
pascal@20543 828 if (args[2] == "large") { args[2] = $3 }
pascal@20458 829 if (isnum(args[2])) {
pascal@20546 830 if (args[2] % 16777216 == 0) {
pascal@20546 831 sub(/dword/,"byte",s)
pascal@20543 832 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
pascal@20458 833 print s "/16777216"; next
pascal@20458 834 }
pascal@20458 835 if (args[2] % 65536 == 0) {
pascal@20546 836 sub(/dword/,"word",s)
pascal@20543 837 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
pascal@20458 838 print s "/65536"; next
pascal@20458 839 }
pascal@20458 840 }
pascal@20458 841 }
pascal@20458 842 if (/^ mov e.x,/) {
pascal@20458 843 split($2,args,",")
pascal@20458 844 r=args[1]
pascal@20458 845 if (args[2] == "large") { args[2] = $3 }
pascal@20458 846 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
pascal@20458 847 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
pascal@20458 848 print " xor " r "," r
pascal@20458 849 if (args[2] == 0) next
pascal@20458 850 x=" mov " substr(r,2,1)
pascal@20458 851 if (args[2] % 256 == 0) {
pascal@20458 852 print x "h," args[2] "/256"
pascal@20458 853 }
pascal@20458 854 else { print x "l," args[2] }
pascal@20458 855 next
pascal@20458 856 }
pascal@20458 857 }
pascal@20458 858 }
pascal@21576 859 if (afterjmp) print ";" $0
pascal@21576 860 else print
pascal@21754 861 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
pascal@21754 862 /^ call near ptr @die$qpxzc/) afterjmp=1
pascal@20458 863 }