wok annotate linld/stuff/src/pipehole.awk @ rev 24034

Openssh (8.5p1)
author Pascal Bellard <pascal.bellard@slitaz.org>
date Thu Apr 08 09:21:26 2021 +0000 (2021-04-08)
parents 526688f99354
children 06547d8cf241
rev   line source
pascal@24020 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@24034 10 if (/debug S/) {
pascal@24034 11 print " %PAGESIZE 255"
pascal@24034 12 print " include common.inc"
pascal@24034 13 }
pascal@21984 14 if (file == "linld.cpp") {
pascal@24013 15 if (/\[si/ || /si,/ || /,si/) sub(/si/,"di")
pascal@24013 16 else if (/\[di/ || /di,/ || /,di/) sub(/di/,"si")
pascal@21984 17 if (/add di,2/) $0=" scasw ; " $0
pascal@24013 18 if (/bx,di/ || /\[bp-2\]/) next
pascal@24013 19 sub(/\[bx\],0/,"[di],0")
pascal@21984 20 if (islinld==1) {
pascal@24013 21 if (/,word.*/) islinld=0
pascal@21984 22 print "; " $0
pascal@24013 23 next
pascal@21984 24 }
pascal@21984 25 if (/^_main proc/) islinld=1
pascal@21984 26 if (/image\|initrd/) islinld=3
pascal@24013 27 if (islinld==3 && /bx,word ptr/) { print "; " $0; next }
pascal@21984 28 if (/fileexist\$qpxzc/) islinld=4
pascal@21984 29 if (islinld==4) {
pascal@24022 30 if (/DGROUP:_heap_top/) next
pascal@23993 31 if (/ax,-1/) {
pascal@23993 32 print " inc ax"
pascal@24013 33 print " mov ax,word ptr [di]"
pascal@23993 34 next
pascal@23993 35 }
pascal@23993 36 if (/ax,word ptr/) next
pascal@21984 37 }
pascal@23992 38 if (/buf_cmdline\+1/) {
pascal@23992 39 islinld=5
pascal@23996 40 print " mov bx,offset DGROUP:_buf_cmdline+1"
pascal@23996 41 sub(/offset DGROUP:_buf_cmdline\+1/,"bx")
pascal@23992 42 }
pascal@23804 43 if (islinld==5) {
pascal@23996 44 if (/bx,offset DGROUP:_buf_cmdline/) $0=" dec bx"
pascal@23993 45 if (/ax,word ptr/) next
pascal@23992 46 if (/call/) islinld=0
pascal@23804 47 }
pascal@23996 48 if (/bx,word ptr DGROUP:_cmdstr\+6/) next
pascal@23996 49 if (/_cmdstr\+6,0/) {
pascal@24013 50 print " mov bx,word ptr [si+6]"
pascal@23996 51 $0=" or bx,bx"
pascal@23996 52 }
pascal@24022 53 if (/heap_top \+1;/) islinld=6
pascal@24022 54 if (islinld==6) {
pascal@24022 55 sub(/ax/,"bx")
pascal@24022 56 if (/strcatb/) {
pascal@24022 57 print " dec bx"
pascal@24022 58 islinld=4
pascal@24022 59 }
pascal@24022 60 }
pascal@21984 61 } # file == "linld.cpp"
pascal@21791 62 if (file == "himem.cpp") {
pascal@24019 63 if (/sp,bp/ || /pop bp/ || /enter/ || /leave/) next
pascal@21984 64 if (/void load_image/) ishimem=1
pascal@21791 65 if (ishimem == 1 && is386 == 0) {
pascal@21791 66 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
pascal@21791 67 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
pascal@24013 68 if (/si\+12\],ax/ || /si\+16\],ax/ || /di\+2\],ax/ || /DGROUP:_himem_buf\+2,ax/) sub(/,ax/,",es")
pascal@23996 69 if (/dx,dword ptr \[si\+14\]/ || /DGROUP:_himem_buf,dx/) sub(/dx/,"ax")
pascal@21984 70 }
pascal@21984 71 if (ishimem == 1) {
pascal@21984 72 if (/do \{/) ishimem=2
pascal@24034 73 if (/bx,si/ || /di,ax/ || /push bp/ || /bp,sp/ || /push di/ || /push si/) next
pascal@23996 74 if (/sp,2/ || /bp\+4/) next
pascal@21984 75 }
pascal@21984 76 if (ishimem == 2) {
pascal@21984 77 if (/movzx/) print " cwde"
pascal@23996 78 if (/bp-2/ || /di,ax/ || /bx,di/ || /bx,si/) next
pascal@21984 79 if (/storepage.bufv/) {
pascal@21984 80 print " inc ax"
pascal@21984 81 print " push ax"
pascal@21984 82 }
pascal@21984 83 if (/buf \+= size;/) {
pascal@21984 84 print " pop ax"
pascal@21984 85 }
pascal@23996 86 if (/i\+12/) ishimem=20
pascal@23996 87 }
pascal@23996 88 if (ishimem == 20) {
pascal@24013 89 if (/loadfail/) next
pascal@23996 90 if (/je/) {
pascal@23996 91 print " extrn jmploadfailure"
pascal@23996 92 $0=" jne short jmploadfailure"
pascal@23996 93 }
pascal@23989 94 if (/endp/) ishimem=0
pascal@21791 95 }
pascal@23992 96 if (/@memcpy_image\$qp11image_himem/) next
pascal@24013 97 if (/far last_ditch/) ishimem=3
pascal@23992 98 if (ishimem == 3) {
pascal@23996 99 sub(/DGROUP:_imgs\+4,/,"[si+4],")
pascal@24013 100 if (/bx,di/ || /di,ax/) next
pascal@23992 101 }
pascal@21791 102 } # file == "himem.cpp"
pascal@21791 103 if (file == "load.cpp") {
pascal@23996 104 if (isload != 3 && isload != 6) { # LOAD.LST
pascal@23996 105 if (/,si/ || /si,/ || /\[si/) sub(/si/,"di")
pascal@23996 106 else if (/,di/ || /di,/ || /\[di/) sub(/di/,"si")
pascal@23996 107 }
pascal@23996 108 if (/moverm\(/) isload=16
pascal@23996 109 if (isload != 16 && /bx,si/) next
pascal@23996 110 if (/@moverm/) isload=0
pascal@23992 111 if (/readrm\(m, 0x200/) isload=15
pascal@23992 112 if (isload == 15) { # LOAD.LST
pascal@23996 113 if (/bx,si/) next
pascal@23992 114 if (/call/) isload=0
pascal@23992 115 }
pascal@23989 116 if (/load_image\(/) {
pascal@23989 117 if (isload == 3) isload=13
pascal@23989 118 else isload=14
pascal@23989 119 }
pascal@23989 120 if (isload == 14) { # LOAD.LST
pascal@23996 121 if (/call/) $0=" jmp short load_imagez"
pascal@23989 122 if (/ret/) isload=0
pascal@23989 123 if (/pop/ || /ret/ || /push/) next
pascal@23989 124 }
pascal@23989 125 if (isload == 13) { # LOAD.LST
pascal@23991 126 if (/pop/) isload=3
pascal@23991 127 if (/push/ || /call/ || /pop/) next
pascal@23989 128 }
pascal@22152 129 if (/i\+21\],513$/) isload=11
pascal@21984 130 if (isload == 12) { # LOAD.LST
pascal@21984 131 if (/cmp/) next
pascal@21984 132 if (/jb/) isload=0
pascal@21984 133 sub(/jb/,"jcxz")
pascal@21984 134 }
pascal@21984 135 if (isload == 11) { # LOAD.LST
pascal@21984 136 if (/cmp/) {
pascal@21984 137 print " mov cx,513"
pascal@22152 138 sub(/cmp /,"sub cx,")
pascal@22152 139 sub(/,513/,"")
pascal@21984 140 }
pascal@21984 141 if (/jb/) isload=12
pascal@21984 142 sub(/jb/,"ja")
pascal@21984 143 }
pascal@22170 144 sub(/_imgs\+65534/,"_imgs-2")
pascal@21791 145 if (/setup_sects == 0/) isload=9
pascal@21791 146 if (isload == 9) { # LOAD.LST
pascal@23999 147 sub(/,0/,",al ; worst case 2k boundary (iso)")
pascal@21791 148 if (/jne/) isload=0
pascal@21791 149 }
pascal@21757 150 if (/cmd_line_ptr =/ && is386 == 0) isload=7
pascal@21757 151 if (isload == 7) { # LOAD.LST
pascal@22181 152 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
pascal@22170 153 if (/enable A20 if needed/) { print nextinst; isload=0 }
pascal@22152 154 if (/i-463/) $0=" mov bx,-463"
pascal@22170 155 if (/i-465/) {
pascal@22170 156 sub(/465/,"2"); sub(/\[/,"[bx+")
pascal@22170 157 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
pascal@22170 158 }
pascal@21757 159 if (/,dx/) {
pascal@21757 160 print " mov cl,12"
pascal@21757 161 print " shr ax,cl"
pascal@22181 162 print " mov bx,55"
pascal@21757 163 sub(/dx/,"ax")
pascal@21757 164 }
pascal@21757 165 }
pascal@23992 166 if (/pm_low == 0/) {
pascal@23991 167 print " push di"
pascal@23996 168 print " push si"
pascal@23991 169 isload=6
pascal@23991 170 }
pascal@21757 171 if (isload == 6) { # LOAD.LST
pascal@23991 172 if (/si\+2/) {
pascal@23991 173 print " cmpsw"
pascal@23991 174 next
pascal@23991 175 }
pascal@23989 176 if (/les/) sub(/bx,/,"di,")
pascal@23991 177 if (/bx\+4/ || /es:/ || /call/ || /pop/ || /ret/) next
pascal@23989 178 if (/si\+6/) {
pascal@23989 179 print " movsw"
pascal@23989 180 print " movsw"
pascal@23989 181 print " movsw"
pascal@23989 182 print " movsw"
pascal@23996 183 print " pop si"
pascal@23991 184 print "load_imagez:"
pascal@21757 185 next
pascal@21757 186 }
pascal@21757 187 }
pascal@21757 188 if (isload == 5) { # LOAD.LST
pascal@21757 189 sub(/ax,/,"bx,")
pascal@23996 190 if (/@puts\$qpxzc/) isload=0
pascal@21757 191 if (/mov bx,ax/) next
pascal@23996 192 sub(/,word ptr \[di\+29\]/,",cx")
pascal@21757 193 }
pascal@23996 194 if (/_cmdnum\+14/ && is386 == 0) isload=4
pascal@22180 195 if (isload == 4) { # LOAD.LST
pascal@23996 196 if (/_cmdnum\+14/) next
pascal@23996 197 if (/_cmdnum\+12$/) {
pascal@23996 198 $0=" les dx,dword ptr [bx+12]"
pascal@21757 199 }
pascal@21791 200 sub(/,ax/,",es")
pascal@22181 201 if (/add ax,word ptr/) $0=" add ax,cx"
pascal@22181 202 if (/i\+29\],0/) {
pascal@22181 203 sub(/,0$/,"")
pascal@22181 204 sub(/cmp /,"mov cx,")
pascal@22181 205 }
pascal@22181 206 sub(/je/,"jcxz")
pascal@23996 207 if (/@strcpy/) isload=0
pascal@23992 208 if (/\+0x200/) isload=5
pascal@21757 209 }
pascal@23996 210 if (/void load_initrd\(\)/) { isload=3; isload2=0 }
pascal@21754 211 if (isload == 3) { # LOAD.LST
pascal@24015 212 if (/bx,offset DGROUP:_imgs\+28/ || /push si/) next
pascal@24015 213 if (/si,offset DGROUP:_imgs\+28/) print " push si"
pascal@23996 214 if (/cmdstr\+4,0/) {
pascal@23996 215 isload2++
pascal@23996 216 print " mov ax,word ptr DGROUP:_cmdstr+4"
pascal@23996 217 $0=" or ax,ax"
pascal@23996 218 }
pascal@23996 219 if (isload2 && /DGROUP:_cmdstr\+4/) $0=";" $0
pascal@23994 220 if (/je short @2@.*/) sub(/@2@.*/,"load_initrd_ret")
pascal@23992 221 if (/mov ax,word ptr \[si\]/) $0=" lodsw"
pascal@23991 222 if( /jmp/) {
pascal@23991 223 print "load_initrd_ret:"
pascal@23991 224 print " ret"
pascal@23991 225 next
pascal@23991 226 }
pascal@23996 227 if (/@loadfailure/) {
pascal@23996 228 print " global jmploadfailure:near"
pascal@23996 229 print "jmploadfailure:"
pascal@23996 230 }
pascal@21754 231 sub(/\[di/,"[bx")
pascal@23992 232 sub(/di,/,"bx,")
pascal@21754 233 }
pascal@23996 234 if (/mode = vid_mode/) { isload=2; print " mov bx,offset _cmdnum" }
pascal@21750 235 if (isload == 2) { # LOAD.LST
pascal@23996 236 if (/DGROUP:_cmdnum/) { sub(/DGROUP:_cmdnum/,"[bx"); $0=$0 "]"}
pascal@21750 237 sub(/,0/,""); sub(/cmp /,"mov cx,")
pascal@21750 238 sub(/je/,"jcxz")
pascal@21750 239 if (/ax,word/) next
pascal@21750 240 sub(/,ax/,",cx")
pascal@23992 241 if (/starting linux 1\.3\.73/) isload=0
pascal@21750 242 }
pascal@23996 243 if (/_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
pascal@21750 244 if (isload == 1) { # LOAD.LST
pascal@21791 245 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
pascal@21729 246 if (/mov al,byte ptr/ && is386) {
pascal@22152 247 sub(/mov al/,"movzx eax")
pascal@21729 248 }
pascal@21791 249 if (is386 == 0) {
pascal@23999 250 if (/m->size -= _rm_size/) print " cwd ; do not trust rewind result (iso case)"
pascal@21791 251 sub(/,0$/,",dx")
pascal@21791 252 }
pascal@21729 253 if (/ax,word ptr/) next
pascal@21729 254 if (/^ call/) isload=0
pascal@21729 255 }
pascal@21791 256 } # file == "load.cpp"
pascal@21791 257 if (file == "iso9660.cpp") {
pascal@24034 258 if (swapsidi == 1) {
pascal@24034 259 if (/\[si/) sub(/\[si/,"[di")
pascal@24034 260 else (/\[di/) sub(/\[di/,"[si")
pascal@24034 261 if (/\+si/) sub(/\+si/,"+di")
pascal@24034 262 else (/\+di/) sub(/\+di/,"+si")
pascal@24034 263 if (/,si/) sub(/,si/,",di")
pascal@24034 264 else if (/,di/) sub(/,di/,",si")
pascal@24034 265 if (/si,/) sub(/si,/,"di,")
pascal@24034 266 else if (/di,/) sub(/di,/,"si,")
pascal@24034 267 }
pascal@24022 268 if (/di,offset DGROUP:_buf2k/) { si="si"; di="di" }
pascal@24022 269 if (/si,offset DGROUP:_buf2k/) { si="di"; di="si" }
pascal@24022 270 if (/leave/ || /enter/ || /bp/ || /sub sp,/) next
pascal@24022 271 if (/ptr \[.i\+8\],dx/) next
pascal@24022 272 if (/ptr \[.i\+6\],ax/) next
pascal@24022 273 if (/ptr \[.i\+6\],eax/) next
pascal@24020 274 if (/x,word ptr \[.i\+32\]/) next
pascal@24019 275 if (/add word ptr \[.i\],ax/) sub(/ax/,"cx")
pascal@24034 276 if (/ax,word ptr \[si\+18\]/) sub(/mov ax,/,"les ax,d")
pascal@24034 277 if (/ax,word ptr \[si\+20\]/) next
pascal@24034 278 if (/word ptr \[si\+25\],ax/) sub(/ax/,"es")
pascal@23996 279 sub(/di,word ptr DGROUP:_isostate\+2/,"di,word ptr [si+2]")
pascal@24034 280 if (/-257/) isiso=22
pascal@24034 281 if (isiso == 22) {
pascal@24034 282 sub(/-257/,"-257 ; clear C")
pascal@24034 283 if (/je/) {
pascal@24034 284 print " cbw"
pascal@24034 285 print " xchg ax,bx"
pascal@24034 286 print " xchg ax,dx ; .. or ."
pascal@24034 287 $0=" je returnC"
pascal@24034 288 }
pascal@24034 289 }
pascal@24022 290 if (/p = buf2k \+ 32 \+ x->curpos/) isiso=21
pascal@24020 291 if (isiso == 21) { # ISO9660.LST
pascal@24023 292 if (/ax,/) next
pascal@24034 293 if (/.i,ax/) sub(/mov/,"xchg")
pascal@24020 294 if (/# else/) isiso=0
pascal@24020 295 }
pascal@24034 296 if (/cx,.i/) {
pascal@24034 297 if (isiso == 0) {
pascal@24034 298 print " ifndef CLEAN_ISO9660"
pascal@24034 299 print " inc " di
pascal@24034 300 print " mov cx," di
pascal@24034 301 }
pascal@24022 302 isiso=20
pascal@24022 303 }
pascal@24019 304 if (isiso == 20) { # ISO9660.LST
pascal@24020 305 if (/bx,dx/) {
pascal@24020 306 isiso=12
pascal@24020 307 next
pascal@24020 308 }
pascal@24034 309 if (/add .i,ax/ || /cbw/) next
pascal@24034 310 if (/cmp/) sub(/\[/,"[bx+")
pascal@24022 311 if (/inc cx/) next
pascal@24034 312 if (/sub/) sub(/.i/,"bx")
pascal@24034 313 sub(/inc .i/,"inc bx")
pascal@24034 314 if (/al,byte ptr/) {
pascal@24034 315 next
pascal@24034 316 }
pascal@24034 317 sub(/i-1\],12603/,"i],12603")
pascal@24034 318 if (/bx\+.i\],46/) {
pascal@24034 319 print " inc " di
pascal@24034 320 print " mov cx," di
pascal@24034 321 }
pascal@24022 322 if (/i],0/) {
pascal@24034 323 print " ifndef CLEAN_ISO9660"
pascal@24034 324 print " inc " di
pascal@24034 325 print " mov cx," di
pascal@24034 326 print " endif"
pascal@24034 327 print "seteos:"
pascal@24034 328 sub(/,0/,",bh ; clear C")
pascal@24034 329 sub(/mov byte ptr \[/,"and byte ptr [bx+")
pascal@24022 330 }
pascal@24034 331 if (/cx,.i/) next
pascal@24034 332 if (/\}/) {
pascal@24034 333 print " xchg ax,cx"
pascal@24034 334 }
pascal@24034 335 if (/cx,5/) $0=" lea dx,[" di "+5]"
pascal@24019 336 if (/filename = s;/) {
pascal@24019 337 isiso=0
pascal@24019 338 }
pascal@24019 339 }
pascal@23996 340 if (isiso == 19) { # ISO9660.LST
pascal@24022 341 if (/short @2@310/) $0=" jc restoreC"
pascal@24022 342 if (/si\+32/ || /ax,dx/ || /ax,di/ || /cmp ax,-1/ || /sub ax,/) next
pascal@24034 343 if (/ax,word ptr \[si\+28\]/) next
pascal@24020 344 if (/bx,offset/) sub(/bx/,"ax")
pascal@24034 345 sub(/dx,/,"bx,")
pascal@23996 346 if (/short @2@282/) sub(/je/,"jnc")
pascal@24034 347 if (/\[si\+30\],0/) $0=" ;or cl,cl"
pascal@24034 348 if (/short @2@478/) sub(/je/,"jcxz")
pascal@23996 349 if (/@strcmp\$qpxzct1/) {
pascal@23996 350 print
pascal@23996 351 print "restoreC:"
pascal@24034 352 $0=" mov byte ptr [di],dl ; c"
pascal@23996 353 isiso=1
pascal@23996 354 }
pascal@23996 355 }
pascal@23996 356 if (isiso == 18) { # ISO9660.LST
pascal@24022 357 if (/endif/) isiso=1
pascal@23996 358 }
pascal@23996 359 if (isiso == 17) { # ISO9660.LST
pascal@24034 360 if (/si\+18/) {
pascal@24022 361 print "next:"
pascal@24034 362 print " mov word ptr [si+20],bx"
pascal@23996 363 print
pascal@24022 364 isiso=0
pascal@24022 365 }
pascal@24022 366 if (/_buf2k\+167/) {
pascal@24022 367 print
pascal@24022 368 $0=""
pascal@23996 369 }
pascal@23996 370 else sub(/ax/,"bx")
pascal@23996 371 if (/,bx/) next
pascal@23996 372 if (/isoreadrootsector/) {
pascal@23996 373 print
pascal@24022 374 print " mov ax,word ptr [_buf2k+1]"
pascal@24022 375 print " xor ax,17475 ; clear C, CD"
pascal@24022 376 print "jne_returnNotC:"
pascal@24022 377 print " cmc"
pascal@24022 378 $0=" jne returnC"
pascal@23996 379 }
pascal@23996 380 }
pascal@24022 381 if (/if \(c\)/) isiso=16
pascal@23996 382 if (isiso == 16) { # ISO9660.LST
pascal@24022 383 if (/cmp/) {
pascal@24022 384 print " mov bx,word ptr [si+7]"
pascal@24022 385 print " mov ax,word ptr [si+11]"
pascal@24034 386 print " dec dx"
pascal@24022 387 print " jns next"
pascal@23996 388 }
pascal@24022 389 if (/isolseek/) isiso=1
pascal@24022 390 else if (! /;/) next
pascal@23996 391 }
pascal@23996 392 if (/found:/) isiso=15
pascal@23996 393 if (isiso != 15 && /si,offset DGROUP:_isostate/) $0=";" $0
pascal@23996 394 if (isiso == 15) { # ISO9660.LST
pascal@23996 395 if (/xor/) {
pascal@24020 396 print "returnC:"
pascal@24034 397 print " sbb dx,dx"
pascal@23996 398 print "return:"
pascal@23996 399 next
pascal@23996 400 }
pascal@24034 401 if (/i\+28\],cx/) {
pascal@24034 402 print " ifndef BASIC_ISO9660"
pascal@24034 403 print " xchg ax,dx"
pascal@24034 404 print " endif"
pascal@24034 405 next
pascal@24034 406 }
pascal@24022 407 if (/@1@422:/) next
pascal@23996 408 if (/\[di\],47/) isiso=17
pascal@23996 409 }
pascal@23989 410 if (isiso == 14) { # ISO9660.LST
pascal@24022 411 if (/ax,/ || /jge/) next
pascal@24022 412 sub(/mov/,"sub")
pascal@24022 413 sub(/,ax/,",8")
pascal@24020 414 if (/jmp/) {
pascal@24022 415 print " ;JUMPS"
pascal@24022 416 print " jb returnCXZC"
pascal@24022 417 $0=" ;NOJUMPS"
pascal@24022 418 isiso=0
pascal@24020 419 }
pascal@23989 420 }
pascal@24022 421 if (/p = buf2k \+ 34/) isiso=13
pascal@23988 422 if (isiso == 13) { # ISO9660.LST
pascal@24034 423 #if (/cbw/) $0=" ;cbw"
pascal@24019 424 if (/i,.i/) $0=" xchg ax,bx"
pascal@24022 425 if (/i,ax/) $0=" xchg ax," di
pascal@24034 426 if (/i,70/ || /ptr \[.i\+32\]/) next
pascal@24022 427 if (/register len/) {
pascal@24022 428 isiso=12
pascal@24022 429 }
pascal@23988 430 }
pascal@23870 431 if (isiso == 12) { # ISO9660.LST
pascal@24019 432 if (/.i\+2/) sub(/al/,"bl")
pascal@23996 433 if (/cbw/) next
pascal@24034 434 if (/dx,ax/) next
pascal@23870 435 if (/bx,dx/) next
pascal@23870 436 sub(/i,dx/,"i,bx")
pascal@24020 437 sub(/cx,/,"dx,")
pascal@24034 438 if (/bx\+.i\],0/) {
pascal@24034 439 sub(/,0/,",bh")
pascal@24034 440 }
pascal@24034 441 if (/jmp/) {
pascal@24034 442 print
pascal@24034 443 $0=" endif"
pascal@24034 444 }
pascal@24034 445 if (/jne/) {
pascal@24034 446 print " ifdef BASIC_ISO9660"
pascal@24034 447 print " lea cx,[" di "+5]"
pascal@24034 448 print " je seteos"
pascal@24034 449 print " else"
pascal@24034 450 }
pascal@24020 451 if (/while/) isiso=120
pascal@24020 452 }
pascal@24020 453 if (isiso == 120) { # ISO9660.LST
pascal@24034 454 sub(/ax/,"cx")
pascal@24034 455 if (/cmp cx,/) $0=" cmp " di ",cx"
pascal@24022 456 sub(/jae/,"jb")
pascal@24020 457 if (/endif/) isiso=0
pascal@23870 458 }
pascal@23863 459 if (/curpos >= SECT/) isiso=10
pascal@23863 460 if (isiso == 10) { # ISO9660.LST
pascal@24022 461 if (/,2048/) {
pascal@24022 462 print " xor cx,cx"
pascal@23863 463 sub(/cmp /,"mov bx,")
pascal@23863 464 sub(/i.*/,"i]")
pascal@23863 465 print
pascal@23863 466 $0=" cmp bh,2048/256"
pascal@23863 467 }
pascal@24022 468 if (/DGROUP:_buf2k\[bx\],0/) $0=" cmp word ptr [bx+" di "],cx"
pascal@24022 469 sub(/,0/,",cx")
pascal@24022 470 if (/\[.i\],cx/) isiso=14
pascal@24022 471 else if (/mov/) next
pascal@23863 472 }
pascal@21791 473 if (/<< SECTORBITS/) isiso=9
pascal@21791 474 if (isiso == 9) { # ISO9660.LST
pascal@24022 475 if (/dx,/) next
pascal@21791 476 sub(/mov ax,/,"les ax,d")
pascal@21791 477 if (/^ call/) {
pascal@21791 478 print " extrn N_LXLSH@ES:near"
pascal@21791 479 sub(/N_LXLSH@/,"N_LXLSH@ES")
pascal@21791 480 isiso=0
pascal@21791 481 }
pascal@21791 482 }
pascal@21791 483 if (/filesize =/) isiso=8
pascal@21791 484 if (isiso == 8) { # ISO9660.LST
pascal@24034 485 if (/ax,/ || /cbw/) next
pascal@21791 486 sub(/mov dx,/,"les dx,d")
pascal@24020 487 sub(/\],ax/,"],es")
pascal@24020 488 sub(/cx,/,"dx,")
pascal@24034 489 if (/DGROUP:s@\+/) {
pascal@24034 490 print
pascal@24034 491 next
pascal@24034 492 }
pascal@24034 493 if (/i\+33]/) {
pascal@24034 494 print " ifdef ROCKRIDGE"
pascal@24034 495 print " ifdef BASIC_ISO9660"
pascal@24034 496 print " add " di ",32"
pascal@24034 497 print " mov ax,[" di "]"
pascal@24034 498 print " else"
pascal@24034 499 print " mov ax,[" di "+32]"
pascal@24034 500 print " endif"
pascal@24034 501 print " mov bl,ah"
pascal@24034 502 print " mov bh,0"
pascal@24034 503 print " else"
pascal@24034 504 print " mov al,[" di "+33]"
pascal@24034 505 print " cbw"
pascal@24034 506 $0=" endif"
pascal@24034 507 }
pascal@24034 508 if (/sub/) {
pascal@24034 509 print " ifdef ROCKRIDGE"
pascal@24034 510 print " sub dx,bx"
pascal@24034 511 print " else"
pascal@24034 512 print
pascal@24034 513 $0=" endif"
pascal@24034 514 isiso=0
pascal@24034 515 }
pascal@21791 516 }
pascal@21754 517 if (/entrysize =/) isiso=5
pascal@21754 518 if (isiso == 5) { # ISO9660.LST
pascal@21754 519 if (/ax,ax/) next
pascal@24022 520 if (/word ptr \[.i\+3.\],ax/) next
pascal@21754 521 sub(/ax/,"cx")
pascal@21754 522 sub(/je/,"jcxz")
pascal@23996 523 if (/jcxz/) {
pascal@23996 524 hold=0
pascal@23996 525 print s
pascal@24022 526 print " stc"
pascal@24022 527 print "returnCXZC:"
pascal@24022 528 sub(/@1@1../,"returnC")
pascal@23996 529 print
pascal@24022 530 if (is386) $0=" mov dword ptr [" si "+6],eax"
pascal@24019 531 else {
pascal@24022 532 print " mov word ptr [" si "+8],dx"
pascal@24022 533 $0=" mov word ptr [" si "+6],ax"
pascal@24019 534 }
pascal@23996 535 }
pascal@21754 536 if (/return/) isiso=0
pascal@21754 537 }
pascal@21754 538 if (/do s\+\+; while/) isiso=3
pascal@23996 539 if (isiso == 3) { # ISO9660.LST
pascal@24022 540 if (/do \{/) print "while1:"
pascal@21754 541 sub(/cmp byte ptr \[.i\]/,"sub al")
pascal@21754 542 if (/inc /) { r=$2; print; next }
pascal@21754 543 if (/al,0/) print " mov al,[" r "]"
pascal@24034 544 if (/word ptr \[si\],-1/) $0=" not word ptr [si] ; zero'd in BSS"
pascal@24034 545 sub(/al,32/,"ax,32")
pascal@24034 546 if (/byte ptr \[si\+30\],al/) $0=" xchg ax,cx"
pascal@24020 547 if (/al,byte ptr \[/) next
pascal@21754 548 if (/byte ptr \[.*\],0/) next
pascal@24022 549 if (/byte ptr \[si\+31\],al/) next
pascal@23996 550 }
pascal@24034 551 if (/ptr .isoreaddir/) {
pascal@24034 552 print " ifdef ISOHOOK"
pascal@24034 553 print " push cx"
pascal@24034 554 print
pascal@24034 555 print " pop cx"
pascal@24034 556 print " else"
pascal@24034 557 print
pascal@24034 558 $0=" endif"
pascal@24034 559 isiso=1
pascal@24034 560 }
pascal@23996 561 if (isiso == 1) { # ISO9660.LST
pascal@24034 562 if (/xor/) {
pascal@24034 563 $0=" xor cl,32"
pascal@24034 564 isiso=18
pascal@24034 565 }
pascal@23996 566 if (/n = name;/) {
pascal@23996 567 isiso=19
pascal@24034 568 print " xchg dl,byte ptr [di] ; c"
pascal@21791 569 }
pascal@24022 570 sub(/jne/,"jnc")
pascal@24022 571 if (/short @2@450/) $0=" jc returnC"
pascal@24022 572 if (/je/) $0=" jc while1"
pascal@24022 573 if (/short @2@562/) sub(/@2@562/,"jne_returnNotC")
pascal@24022 574 if (/jmp/) $0=" jmp jne_returnNotC"
pascal@23996 575 if (/ax,word ptr \[si\+4\]/) $0=" xchg ax,bx ; " $0
pascal@24022 576 if (/\[di\],al/ || /al,byte ptr/) next
pascal@24022 577 if (/@2@338/) next
pascal@23996 578 if (/ax,-1/) next
pascal@23996 579 if (/inc di/ || /@@0/) next
pascal@24022 580 if (/@2@142$/) print " inc di"
pascal@21735 581 }
pascal@24022 582 if (/i\+34\]/) next
pascal@24034 583 if (/di,offset DGROUP:_isostate/) {
pascal@24034 584 sub(/mov/,";mov")
pascal@24034 585 sub(/di,/,"si,")
pascal@24034 586 swapsidi=1
pascal@24034 587 }
pascal@24034 588 if (/^ ret/) swapsidi=0
pascal@21791 589 } # file == "iso9660.cpp"
pascal@21729 590 if (wascall) {
pascal@21729 591 if (rcall != "") {
pascal@21729 592 if (/,ax$/) print " mov " rcall ",ax"
pascal@21729 593 else print " xchg ax," rcall
pascal@21729 594 wascall=0
pascal@21729 595 }
pascal@21729 596 else if (/^ mov .i,ax$/) {
pascal@21729 597 split($2,y,",")
pascal@21729 598 rcall=y[1]
pascal@21729 599 next
pascal@21729 600 }
pascal@21729 601 else wascall=0
pascal@21729 602 }
pascal@21729 603 if (/^ call /) { wascall=1; rcall="" }
pascal@20458 604 if (hold == 0) {
pascal@20458 605 s=$0
pascal@20534 606 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
pascal@20543 607 r=$2; kept=0
pascal@20458 608 hold=1; split($2,regs,","); next
pascal@20458 609 }
pascal@21729 610 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
pascal@20458 611 hold=2; r=$2; next
pascal@20458 612 }
pascal@20458 613 if (/^ mov [abcds][ix],/ && ! /,.s/) {
pascal@20458 614 hold=3; split($2,regs,","); next
pascal@20458 615 }
pascal@20458 616 if (/^ movzx eax,ax$/) { hold=4; next }
pascal@20544 617 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
pascal@20543 618 split($0,regs,",")
pascal@20543 619 if (isnum(regs[2]) && regs[2] != 0 &&
pascal@20543 620 (regs[2] % 256) == 0) {
pascal@20549 621 hold=5; next
pascal@20543 622 }
pascal@20543 623 }
pascal@20630 624 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
pascal@20630 625 if (/^ mov cl,4$/) { hold=7; next }
pascal@20630 626 if (/^ cmp word ptr DGROUP:.*,0$/) {
pascal@20630 627 hold=8; split($2,regs,","); next
pascal@20630 628 }
pascal@20634 629 if (/^ cbw/) { hold=11; kept=0; next }
pascal@20634 630 if (/^ add [abcds][ix],2$/) {
pascal@20634 631 split($2,regs,","); hold=12; next
pascal@20634 632 }
pascal@20634 633 if (/^ sub [abcds][ix],2$/) {
pascal@20634 634 split($2,regs,","); hold=13; next
pascal@20634 635 }
pascal@21569 636 if (/^ push dx$/) {
pascal@21569 637 hold=14; next;
pascal@21569 638 }
pascal@20458 639 }
pascal@20458 640 else if (hold == 1) {
pascal@20543 641 if (/^ ;/) { line[kept++]=$0; next }
pascal@20458 642 hold=0; split($2,args,","); op=""
pascal@20458 643 if ($1 == "add") op="+"
pascal@20458 644 if ($1 == "sub") op="-"
pascal@20751 645 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 646 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20543 647 if (op != "" && regs[1] == args[1]) {
pascal@20543 648 if (isnum(args[2])) {
pascal@20630 649 for (i = kept++; i > 0; i--) line[i] = line[i-1]
pascal@20630 650 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
pascal@22288 651 sub(/\+-/,"-",line[0])
pascal@20630 652 hold=10; next
pascal@20543 653 }
pascal@20543 654 line[kept++]=$0
pascal@20543 655 hold=1
pascal@20458 656 next
pascal@20458 657 }
pascal@20520 658 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
pascal@20520 659 print " xchg " r
pascal@20520 660 }
pascal@20543 661 else print s
pascal@20543 662 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20458 663 }
pascal@20458 664 else if (hold == 2) {
pascal@21729 665 split($0,args,",")
pascal@21729 666 if (/^ mov / && r == args[2]) { print s; s=$0; next }
pascal@21729 667 split($2,args,",")
pascal@21729 668 hold=0; print s
pascal@20458 669 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
pascal@20458 670 }
pascal@20458 671 else if (hold == 3) {
pascal@20458 672 hold=0
pascal@21576 673 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
pascal@20542 674 if (/^ add [abcds][ix],/) {
pascal@20458 675 split($2,regs2,",")
pascal@20458 676 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
pascal@20549 677 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
pascal@20458 678 print t; print s; next
pascal@20458 679 }
pascal@20458 680 }
pascal@20458 681 print s
pascal@20458 682 }
pascal@20458 683 else if (hold == 4) {
pascal@20458 684 hold=0
pascal@20458 685 if (/^ push eax$/) {
pascal@20458 686 print " push 0"; print " push ax"; next
pascal@20458 687 } else { print s }
pascal@20458 688 }
pascal@20543 689 else if (hold == 5) {
pascal@20543 690 hold=0
pascal@20543 691 if ($1 == "jae" || $1 == "jb") {
pascal@20544 692 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 693 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20543 694 s = s "/256"
pascal@20543 695 }
pascal@20543 696 print s
pascal@20543 697 }
pascal@20630 698 else if (hold == 6) {
pascal@20630 699 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
pascal@20630 700 line[kept++]=$0
pascal@20630 701 next
pascal@20630 702 }
pascal@20630 703 p=$0
pascal@20630 704 if (/^ movzx eax,ax$/) {
pascal@20630 705 s=" mov eax,cs"; p=""
pascal@20630 706 }
pascal@20630 707 print s
pascal@20630 708 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20630 709 if (p != "") print p
pascal@20630 710 hold=0; next
pascal@20630 711 }
pascal@20630 712 else if (hold == 7) {
pascal@20458 713 hold=0
pascal@20520 714 if (/^ call near ptr N_LXURSH@$/) {
pascal@20520 715 print " extrn N_LXURSH@4:near"
pascal@20520 716 print " call near ptr N_LXURSH@4"
pascal@20520 717 next
pascal@20520 718 }
pascal@20528 719 if (/^ call near ptr N_LXLSH@$/) {
pascal@20528 720 print " extrn N_LXLSH@4:near"
pascal@20528 721 print " call near ptr N_LXLSH@4"
pascal@20528 722 next
pascal@20528 723 }
pascal@20520 724 print s
pascal@20458 725 }
pascal@20630 726 else if (hold == 8) {
pascal@20630 727 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
pascal@20630 728 hold=0
pascal@20630 729 print s
pascal@20630 730 }
pascal@20630 731 else if (hold == 9) {
pascal@20630 732 hold=0; split($2,args,",")
pascal@20630 733 if (/^ mov ax,/ && args[2] == regs[1]) {
pascal@20630 734 print; print " or ax,ax"; print p; next
pascal@20630 735 }
pascal@20630 736 print s; print p;
pascal@20630 737 }
pascal@20630 738 else if (hold == 10) {
pascal@20751 739 split($2,args,","); op=""
pascal@20751 740 if ($1 == "add") op="+"
pascal@20751 741 if ($1 == "sub") op="-"
pascal@20751 742 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 743 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20751 744 if (op != "" && isnum(args[2])) {
pascal@20751 745 split(line[0],reg,",")
pascal@20751 746 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
pascal@20751 747 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
pascal@20751 748 next
pascal@20751 749 }
pascal@20751 750 }
pascal@20630 751 hold=0
pascal@20630 752 if (/^ mov [sd]i,ax$/) {
pascal@20630 753 split($2,args,",")
pascal@20630 754 for (i = 0; i < kept; i++) {
pascal@20630 755 sub(/ax/,args[1],line[i]); print line[i]
pascal@20630 756 }
pascal@20630 757 next
pascal@20630 758 }
pascal@20630 759 for (i = 0; i < kept; i++) print line[i]
pascal@20630 760 }
pascal@20634 761 else if (hold == 11) {
pascal@20634 762 if (/^ inc ax$/ || /^ dec ax$/) {
pascal@20634 763 line[kept++]=$0; next
pascal@20634 764 }
pascal@20634 765 split($2,args,",")
pascal@20634 766 if (/^ mov cl,/) {
pascal@20634 767 split($2,args,",")
pascal@20634 768 if (args[2] >= 8) {
pascal@20634 769 line[kept++]=$0; next
pascal@20634 770 }
pascal@20634 771 }
pascal@20634 772 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
pascal@20634 773 print " cbw "
pascal@20634 774 }
pascal@20634 775 for (i = 0; i < kept; i++) print line[i]
pascal@20634 776 hold=kept=0
pascal@20634 777 }
pascal@20634 778 else if (hold == 12) {
pascal@20634 779 hold=0
pascal@20634 780 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 781 print " inc " regs[1]
pascal@20634 782 print " inc " regs[1]
pascal@20634 783 }
pascal@20634 784 else print " add " regs[1] ",2"
pascal@20634 785 }
pascal@20634 786 else if (hold == 13) {
pascal@20634 787 hold=0
pascal@20634 788 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 789 print " dec " regs[1]
pascal@20634 790 print " dec " regs[1]
pascal@20634 791 }
pascal@20634 792 else print " sub " regs[1] ",2"
pascal@20634 793 }
pascal@21569 794 else if (hold == 14) {
pascal@21569 795 if (/^ push ax$/) { hold++; next; }
pascal@21569 796 print " push dx";
pascal@21569 797 hold=0;
pascal@21569 798 }
pascal@21569 799 else if (hold == 15) {
pascal@21569 800 if (/^ pop eax$/) { hold++; next; }
pascal@21569 801 print " push dx";
pascal@21569 802 print " push ax";
pascal@21569 803 hold=0;
pascal@21569 804 }
pascal@21569 805 else if (hold == 16) {
pascal@21569 806 hold=0;
pascal@21569 807 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
pascal@21569 808 print " push dx";
pascal@21569 809 print " push ax";
pascal@21569 810 print " pop eax";
pascal@21569 811 }
pascal@21569 812 else if (hold == 17) {
pascal@21569 813 hold=0;
pascal@21569 814 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
pascal@21569 815 }
pascal@21576 816 if (/^ call near ptr @fileexist\$/ || # return boolean :
pascal@21576 817 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
pascal@21628 818 /^ call near ptr @isoreset\$/ ||
pascal@21628 819 /^ call near ptr @isoopen\$/ ||
pascal@21628 820 /^ call near ptr @isoreadsector\$/ ||
pascal@21628 821 /^ call near ptr @strhead\$/ ||
pascal@23984 822 /^ call near ptr @strcmp\$/ ||
pascal@21576 823 /^ call near ptr @argstr\$/ ||
pascal@21576 824 /^ call near ptr @argnum\$/) { print; hold=17; next; }
pascal@20458 825 s=$0
pascal@20458 826 # These optimisation may break ZF or CF
pascal@20485 827 if (/^ sub sp,2$/) { print " push ax"; next }
pascal@20485 828 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
pascal@20485 829 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
pascal@20458 830 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
pascal@20458 831 sub(/mov/,"and",s); print s; next # slower
pascal@20458 832 }
pascal@20458 833 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
pascal@20458 834 sub(/mov/,"or",s); print s; next # slower
pascal@20458 835 }
pascal@20458 836 if (/^ or .*,0$/ || /^ and .*,-1$/) next
pascal@20458 837 if (/^ or [abcd]x,/) {
pascal@20458 838 split($2,args,",")
pascal@20458 839 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 840 print " or " substr(args[1],1,1) "l," args[2]; next
pascal@20458 841 }
pascal@20458 842 }
pascal@20458 843 if (/^ and [abcd]x,/) {
pascal@20458 844 split($2,args,",")
pascal@20459 845 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 846 print " and " substr(args[1],1,1) "l," args[2]; next
pascal@20458 847 }
pascal@20458 848 }
pascal@20458 849 if (/^ or e[abcd]x,/) {
pascal@20458 850 split($2,args,",")
pascal@20458 851 if (args[2] == "large") { args[2] = $3 }
pascal@20458 852 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 853 print " or " substr(args[1],2,1) "l," args[2]; next
pascal@20458 854 }
pascal@20458 855 }
pascal@20458 856 if (/^ and e[abcd]x,/) {
pascal@20458 857 split($2,args,",")
pascal@20458 858 if (args[2] == "large") { args[2] = $3 }
pascal@20459 859 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 860 print " and " substr(args[1],2,1) "l," args[2]; next
pascal@20458 861 }
pascal@20458 862 }
pascal@20458 863 if (/^ or e[abcds][ix],/) {
pascal@20458 864 split($2,args,",")
pascal@20458 865 if (args[2] == "large") { args[2] = $3 }
pascal@20458 866 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
pascal@20458 867 print " or " substr(args[1],2) "," args[2]; next
pascal@20458 868 }
pascal@20458 869 }
pascal@20458 870 if (/^ and e[abcds][ix],/) {
pascal@20458 871 split($2,args,",")
pascal@20458 872 if (args[2] == "large") { args[2] = $3 }
pascal@20459 873 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
pascal@20458 874 print " and " substr(args[1],2) "," args[2]; next
pascal@20458 875 }
pascal@20458 876 }
pascal@20543 877 if (/^ add word ptr/ || /^ sub word ptr/ ||
pascal@20544 878 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
pascal@20542 879 split($0,args,",")
pascal@20542 880 if (isnum(args[2]) && (args[2] % 256 == 0)) {
pascal@20544 881 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 882 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20542 883 print s "/256"; next
pascal@20542 884 }
pascal@20542 885 }
pascal@20546 886 if (/^ add dword ptr/ || /^ sub dword ptr/) {
pascal@20458 887 split($0,args,",")
pascal@20543 888 if (args[2] == "large") { args[2] = $3 }
pascal@20458 889 if (isnum(args[2])) {
pascal@20546 890 if (args[2] % 16777216 == 0) {
pascal@20546 891 sub(/dword/,"byte",s)
pascal@20543 892 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
pascal@20458 893 print s "/16777216"; next
pascal@20458 894 }
pascal@20458 895 if (args[2] % 65536 == 0) {
pascal@20546 896 sub(/dword/,"word",s)
pascal@20543 897 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
pascal@20458 898 print s "/65536"; next
pascal@20458 899 }
pascal@20458 900 }
pascal@20458 901 }
pascal@20458 902 if (/^ mov e.x,/) {
pascal@20458 903 split($2,args,",")
pascal@20458 904 r=args[1]
pascal@20458 905 if (args[2] == "large") { args[2] = $3 }
pascal@20458 906 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
pascal@20458 907 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
pascal@20458 908 print " xor " r "," r
pascal@20458 909 if (args[2] == 0) next
pascal@20458 910 x=" mov " substr(r,2,1)
pascal@20458 911 if (args[2] % 256 == 0) {
pascal@20458 912 print x "h," args[2] "/256"
pascal@20458 913 }
pascal@20458 914 else { print x "l," args[2] }
pascal@20458 915 next
pascal@20458 916 }
pascal@20458 917 }
pascal@20458 918 }
pascal@21576 919 if (afterjmp) print ";" $0
pascal@21576 920 else print
pascal@24022 921 if (/^ jmp / || /boot_kernel\(\);/ ||
pascal@23992 922 /^ call near ptr @die\$qpxzc/ ||
pascal@23992 923 /^ call near ptr @exit\$qv/) afterjmp=1
pascal@20458 924 }