wok annotate linld/stuff/src/pipehole.awk @ rev 23994

linld: no initrd fix
author Pascal Bellard <pascal.bellard@slitaz.org>
date Tue Dec 15 08:41:50 2020 +0000 (2020-12-15)
parents 34d90fb03f57
children a946c1651082
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@23994 25 if (/bx,si/ || /\[bp-2\]/) next
pascal@23994 26 sub(/\[bx\],0/,"[si],0")
pascal@21984 27 if (islinld==1) {
pascal@21984 28 print "; " $0
pascal@21984 29 if (!/word ptr/) next
pascal@21984 30 islinld=0
pascal@21984 31 sub(/,word.*/,",di ; argv")
pascal@21984 32 if (/di,di/) { print "; " $0; next }
pascal@21984 33 }
pascal@21984 34 if (/^_main proc/) islinld=1
pascal@21984 35 if (/== 0x662F/) islinld=2
pascal@21984 36 if (islinld==2) {
pascal@21984 37 if (/cpuhaslm/) islinld=0
pascal@23992 38 if (/bx,word/) { print "; " $0; next }
pascal@21984 39 }
pascal@21984 40 if (/image\|initrd/) islinld=3
pascal@21984 41 if (islinld==3) {
pascal@23992 42 if (/bx,word ptr/) { print "; " $0; next }
pascal@21984 43 }
pascal@21984 44 if (/fileexist\$qpxzc/) islinld=4
pascal@21984 45 if (islinld==4) {
pascal@23993 46 if (/ax,-1/) {
pascal@23993 47 print " inc ax"
pascal@23993 48 print " mov ax,word ptr [si]"
pascal@23993 49 next
pascal@23993 50 }
pascal@23993 51 if (/ax,word ptr/) next
pascal@21984 52 if (/\[si\]$/) { islinld=0; print "; " $0; next }
pascal@21984 53 }
pascal@23992 54 if (/buf_cmdline\+1/) {
pascal@23992 55 islinld=5
pascal@23992 56 print " mov bx,offset DGROUP:buf_cmdline+1"
pascal@23992 57 sub(/offset DGROUP:buf_cmdline\+1/,"bx")
pascal@23992 58 }
pascal@23804 59 if (islinld==5) {
pascal@23992 60 if (/bx,offset DGROUP:buf_cmdline/) $0=" dec bx"
pascal@23993 61 if (/ax,word ptr/) next
pascal@23992 62 if (/call/) islinld=0
pascal@23804 63 }
pascal@21984 64 } # file == "linld.cpp"
pascal@21791 65 if (file == "himem.cpp") {
pascal@23989 66 if (/sp,bp/ || /pop bp/) next
pascal@21984 67 if (/void load_image/) ishimem=1
pascal@21791 68 if (ishimem == 1 && is386 == 0) {
pascal@21791 69 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
pascal@21791 70 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
pascal@23989 71 if (/si\+12\],ax/ || /si\+16\],ax/ || /DGROUP:buf\+2,ax/) sub(/,ax/,",es")
pascal@23989 72 if (/dx,dword ptr \[si\+14\]/ || /DGROUP:buf,dx/) sub(/dx/,"ax")
pascal@21984 73 }
pascal@21984 74 if (ishimem == 1) {
pascal@21984 75 if (/do \{/) ishimem=2
pascal@23991 76 if (/bx,si/ || /push bp/ || /bp,sp/ || /push di/ || /push si/) next
pascal@23990 77 if (/sp,2/) next
pascal@23989 78 if (/bp\+4/) {
pascal@23989 79 $0=" xchg ax,si"
pascal@23989 80 }
pascal@21984 81 }
pascal@21984 82 if (ishimem == 2) {
pascal@21984 83 if (/movzx/) print " cwde"
pascal@23992 84 if (/bp-2/ || /di,ax/ || /bx,di/) next
pascal@21984 85 if (/storepage.bufv/) {
pascal@21984 86 print " inc ax"
pascal@21984 87 print " push ax"
pascal@21984 88 }
pascal@21984 89 if (/buf \+= size;/) {
pascal@21984 90 print " pop ax"
pascal@21984 91 }
pascal@23989 92 if (/endp/) ishimem=0
pascal@21791 93 }
pascal@23992 94 if (/@memcpy_image\$qp11image_himem/) next
pascal@23992 95 if (/far last_ditch/) {
pascal@23992 96 print " extrn memcpy_image_kernel:near"
pascal@23992 97 print " extrn memcpy_image_initrd:near"
pascal@23992 98 ishimem=3
pascal@23992 99 cpy_initrd=0
pascal@23992 100 }
pascal@23992 101 if (ishimem == 3) {
pascal@23992 102 if (/bx,di/ || /di,ax/ || /bx,32/) next
pascal@23992 103 if (/mov bx,si/) {
pascal@23992 104 if (cpy_initrd==0) sub(/mov bx,si/, "call memcpy_image_kernel")
pascal@23992 105 else sub(/mov bx,si/, "call memcpy_image_initrd")
pascal@23992 106 cpy_initrd=1-cpy_initrd
pascal@23992 107 }
pascal@23992 108 sub(/lea bx,\[si\+32\]/, "call memcpy_image_initrd")
pascal@23992 109 }
pascal@23992 110 if (/m = pm2initrd/) ishimem=4
pascal@23992 111 if (ishimem == 4) {
pascal@23992 112 if (/si,32/ || /bx,di/ || /di,ax/) next
pascal@23992 113 sub(/\[si/,"[si+32")
pascal@23992 114 sub(/mov bx,si/, "call memcpy_image_initrd")
pascal@23992 115 }
pascal@21791 116 } # file == "himem.cpp"
pascal@21791 117 if (file == "load.cpp") {
pascal@23992 118 if (/readrm\(m, 0x200/) isload=15
pascal@23992 119 if (isload == 15) { # LOAD.LST
pascal@23992 120 if (/bx,di/) next
pascal@23992 121 if (/call/) isload=0
pascal@23992 122 }
pascal@23989 123 if (/load_image\(/) {
pascal@23989 124 if (isload == 3) isload=13
pascal@23989 125 else isload=14
pascal@23989 126 }
pascal@23989 127 if (isload == 14) { # LOAD.LST
pascal@23989 128 if (/call/) {
pascal@23989 129 print " xchg ax,di"
pascal@23989 130 $0=" jmp short load_imagez"
pascal@23989 131 }
pascal@23989 132 if (/ret/) isload=0
pascal@23989 133 if (/pop/ || /ret/ || /push/) next
pascal@23989 134 }
pascal@23989 135 if (isload == 13) { # LOAD.LST
pascal@23991 136 if (/pop/) isload=3
pascal@23991 137 if (/push/ || /call/ || /pop/) next
pascal@23989 138 }
pascal@22152 139 if (/i\+21\],513$/) isload=11
pascal@21984 140 if (isload == 12) { # LOAD.LST
pascal@21984 141 if (/cmp/) next
pascal@21984 142 if (/jb/) isload=0
pascal@21984 143 sub(/jb/,"jcxz")
pascal@21984 144 }
pascal@21984 145 if (isload == 11) { # LOAD.LST
pascal@21984 146 if (/cmp/) {
pascal@21984 147 print " mov cx,513"
pascal@22152 148 sub(/cmp /,"sub cx,")
pascal@22152 149 sub(/,513/,"")
pascal@21984 150 }
pascal@21984 151 if (/jb/) isload=12
pascal@21984 152 sub(/jb/,"ja")
pascal@21984 153 }
pascal@22170 154 sub(/_imgs\+65534/,"_imgs-2")
pascal@22152 155 if (/m, _rm_size/) isload=10
pascal@21791 156 if (isload == 10) { # LOAD.LST
pascal@23992 157 if (/^ je / || /bx,di/) next
pascal@21791 158 if (/ptr @die\$qpxzc/) {
pascal@21791 159 $0=" jne @die@"
pascal@21791 160 isload=0
pascal@21791 161 }
pascal@21791 162 }
pascal@21791 163 if (/setup_sects == 0/) isload=9
pascal@21791 164 if (isload == 9) { # LOAD.LST
pascal@21791 165 sub(/,0/,",al")
pascal@21791 166 if (/jne/) isload=0
pascal@21791 167 }
pascal@21784 168 if (/fallback\)\[1\] == 0/) isload=8
pascal@21784 169 if (isload == 8) { # LOAD.LST
pascal@21784 170 if (/load_image/) isload=0
pascal@21784 171 else next
pascal@21784 172 }
pascal@21757 173 if (/cmd_line_ptr =/ && is386 == 0) isload=7
pascal@21757 174 if (isload == 7) { # LOAD.LST
pascal@22181 175 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
pascal@22170 176 if (/enable A20 if needed/) { print nextinst; isload=0 }
pascal@22152 177 if (/i-463/) $0=" mov bx,-463"
pascal@22170 178 if (/i-465/) {
pascal@22170 179 sub(/465/,"2"); sub(/\[/,"[bx+")
pascal@22170 180 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
pascal@22170 181 }
pascal@21757 182 if (/,dx/) {
pascal@21757 183 print " mov cl,12"
pascal@21757 184 print " shr ax,cl"
pascal@22181 185 print " mov bx,55"
pascal@21757 186 sub(/dx/,"ax")
pascal@21757 187 }
pascal@21757 188 }
pascal@23992 189 if (/pm_low == 0/) {
pascal@23991 190 print " mov ax,si"
pascal@23991 191 print " push di"
pascal@23991 192 isload=6
pascal@23991 193 }
pascal@21757 194 if (isload == 6) { # LOAD.LST
pascal@23991 195 if (/si\+2/) {
pascal@23991 196 print " cmpsw"
pascal@23991 197 next
pascal@23991 198 }
pascal@23989 199 if (/les/) sub(/bx,/,"di,")
pascal@23991 200 if (/bx\+4/ || /es:/ || /call/ || /pop/ || /ret/) next
pascal@23989 201 if (/si\+6/) {
pascal@23989 202 print " movsw"
pascal@23989 203 print " movsw"
pascal@23989 204 print " movsw"
pascal@23989 205 print " movsw"
pascal@23991 206 print "load_imagez:"
pascal@21757 207 next
pascal@21757 208 }
pascal@21757 209 }
pascal@21757 210 if (isload == 5) { # LOAD.LST
pascal@21757 211 sub(/ax,/,"bx,")
pascal@23992 212 if (/strcatb/) isload=0
pascal@21757 213 if (/mov bx,ax/) next
pascal@23992 214 sub(/,word ptr \[si\+29\]/,",cx")
pascal@21757 215 }
pascal@22180 216 if (/_base_himem\+2/ && is386 == 0) isload=4
pascal@22180 217 if (isload == 4) { # LOAD.LST
pascal@22180 218 if (/_base_himem\+2/) next
pascal@22180 219 if (/_base_himem$/) {
pascal@22180 220 sub(/mov dx,/,"les dx,d")
pascal@21757 221 }
pascal@21791 222 sub(/,ax/,",es")
pascal@22181 223 if (/add ax,word ptr/) $0=" add ax,cx"
pascal@22181 224 if (/i\+29\],0/) {
pascal@22181 225 sub(/,0$/,"")
pascal@22181 226 sub(/cmp /,"mov cx,")
pascal@22181 227 }
pascal@22181 228 sub(/je/,"jcxz")
pascal@23992 229 if (/\+0x200/) isload=5
pascal@21757 230 }
pascal@21754 231 if (/void load_initrd\(\)/) isload=3
pascal@21754 232 if (isload == 3) { # LOAD.LST
pascal@23994 233 if (/je short @2@.*/) sub(/@2@.*/,"load_initrd_ret")
pascal@23992 234 if (/mov ax,word ptr \[si\]/) $0=" lodsw"
pascal@23991 235 if( /jmp/) {
pascal@23991 236 print "load_initrd_ret:"
pascal@23991 237 print " pop si"
pascal@23991 238 print " ret"
pascal@23991 239 next
pascal@23991 240 }
pascal@21754 241 sub(/\[di/,"[bx")
pascal@23992 242 sub(/di,/,"bx,")
pascal@21754 243 }
pascal@21750 244 if (/vid_mode = vid_mode/) isload=2
pascal@21750 245 if (isload == 2) { # LOAD.LST
pascal@21750 246 sub(/,0/,""); sub(/cmp /,"mov cx,")
pascal@21750 247 sub(/je/,"jcxz")
pascal@21750 248 if (/ax,word/) next
pascal@21750 249 sub(/,ax/,",cx")
pascal@23992 250 if (/starting linux 1\.3\.73/) isload=0
pascal@21750 251 }
pascal@22677 252 if (/die\(not_kernel/ || /_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
pascal@21750 253 if (isload == 1) { # LOAD.LST
pascal@21791 254 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
pascal@21729 255 if (/mov al,byte ptr/ && is386) {
pascal@22152 256 sub(/mov al/,"movzx eax")
pascal@21729 257 }
pascal@21791 258 if (is386 == 0) {
pascal@22152 259 if (/m->size -= _rm_size/) print " cwd"
pascal@21791 260 sub(/,0$/,",dx")
pascal@21791 261 }
pascal@21729 262 if (/ax,word ptr/) next
pascal@21729 263 if (/^ call/) isload=0
pascal@21729 264 }
pascal@21791 265 } # file == "load.cpp"
pascal@21791 266 if (file == "iso9660.cpp") {
pascal@23989 267 if (/x->curpos \+= x->entrysize/) isiso=14
pascal@23989 268 if (isiso == 14) { # ISO9660.LST
pascal@23989 269 if (/ax,ax/) {
pascal@23989 270 print "return0:"
pascal@23989 271 isiso=0
pascal@23989 272 }
pascal@23989 273 }
pascal@23988 274 if (/p = x->buffer \+ 34/) isiso=13
pascal@23988 275 if (isiso == 13) { # ISO9660.LST
pascal@23988 276 if (/di,si/) $0=" xchg ax,bx"
pascal@23988 277 if (/di,ax/) $0=" lea di,[si+bx+70]"
pascal@23988 278 if (/di,70/) {
pascal@23988 279 isiso=0
pascal@23988 280 next
pascal@23988 281 }
pascal@23988 282 }
pascal@23870 283 if (/register len/) isiso=12
pascal@23870 284 if (isiso == 12) { # ISO9660.LST
pascal@23870 285 sub(/mov dx,ax/,"xchg ax,bx")
pascal@23870 286 if (/bx,dx/) next
pascal@23870 287 sub(/i,dx/,"i,bx")
pascal@23870 288 if (/while/) isiso=0
pascal@23870 289 }
pascal@23864 290 if (/while \(\*\+\+s/) isiso=11
pascal@23864 291 if (isiso == 11) { # ISO9660.LST
pascal@23864 292 if (/cmp/ || /filename2open/) isiso=0
pascal@23864 293 if (/cmp/) next
pascal@23864 294 if (/mov/) {
pascal@23864 295 sub(/mov bx,/,"cmp byte ptr [")
pascal@23864 296 sub(/i$/,"i],0")
pascal@23864 297 }
pascal@23864 298 }
pascal@23863 299 if (/curpos >= SECT/) isiso=10
pascal@23863 300 if (isiso == 10) { # ISO9660.LST
pascal@23863 301 if (/cmp/) {
pascal@23863 302 sub(/cmp /,"mov bx,")
pascal@23863 303 sub(/i.*/,"i]")
pascal@23863 304 print
pascal@23863 305 $0=" cmp bh,2048/256"
pascal@23863 306 }
pascal@23863 307 if (/mov/) {
pascal@23863 308 isiso=0
pascal@23863 309 next
pascal@23863 310 }
pascal@23863 311 }
pascal@21791 312 if (/<< SECTORBITS/) isiso=9
pascal@21791 313 if (isiso == 9) { # ISO9660.LST
pascal@21791 314 if (/dx,/) next
pascal@21791 315 sub(/mov ax,/,"les ax,d")
pascal@21791 316 if (/^ call/) {
pascal@21791 317 print " extrn N_LXLSH@ES:near"
pascal@21791 318 sub(/N_LXLSH@/,"N_LXLSH@ES")
pascal@21791 319 isiso=0
pascal@21791 320 }
pascal@21791 321 }
pascal@21791 322 if (/filesize =/) isiso=8
pascal@21791 323 if (isiso == 8) { # ISO9660.LST
pascal@21791 324 if (/ax,/) next
pascal@21791 325 sub(/mov dx,/,"les dx,d")
pascal@21791 326 sub(/,ax/,",es")
pascal@21791 327 if (/filemod/) isiso=0
pascal@21791 328 }
pascal@21754 329 if (/CD001/) isiso=7
pascal@21754 330 if (isiso == 7) { # ISO9660.LST
pascal@21754 331 sub(/mov ax,-1/,"dec ax")
pascal@21754 332 if (/jmp/) isiso=0
pascal@21754 333 }
pascal@21754 334 if (/int len =/) isiso=6
pascal@21754 335 if (isiso == 6) { # ISO9660.LST
pascal@21754 336 if (/dx,ax/) next
pascal@21754 337 sub(/ax/,"dx")
pascal@21754 338 sub(/cx,di/,"bx,di")
pascal@21754 339 sub(/cx,dx/,"bx,ax")
pascal@21754 340 sub(/di,dx/,"di,ax")
pascal@21754 341 if (/while/) isiso=2
pascal@21754 342 }
pascal@21754 343 if (/entrysize =/) isiso=5
pascal@21754 344 if (isiso == 5) { # ISO9660.LST
pascal@21754 345 if (/ax,ax/) next
pascal@21754 346 sub(/ax/,"cx")
pascal@21754 347 sub(/je/,"jcxz")
pascal@21754 348 if (/return/) isiso=0
pascal@21754 349 }
pascal@21735 350 if (/x->curdirsize == 0xFFFF/) isiso=4
pascal@21735 351 if (isiso == 4) { # ISO9660.LST
pascal@21754 352 sub(/DGROUP:_isostate\+18/,"[si+18]")
pascal@21754 353 sub(/DGROUP:_isostate\+20/,"[si+20]")
pascal@21747 354 if (/goto restarted/) isiso=0
pascal@21735 355 }
pascal@21791 356 } # file == "iso9660.cpp"
pascal@21791 357 if (file == "iso9660.cpp" || file == "tazboot.cpp") {
pascal@21754 358 if (/do s\+\+; while/) isiso=3
pascal@21801 359 if (/for \(p = s; \*s && \*s \!=/) isiso=3 # tazboot/main
pascal@21750 360 if (isiso == 3) { # ISO9660.LST, TAZBOOT.LST
pascal@21754 361 sub(/cmp byte ptr \[.i\]/,"sub al")
pascal@21754 362 if (/mov byte ptr \[bp-5\],al/) $0=" push ax"
pascal@21754 363 if (/mov al,byte ptr \[bp-5\]/) $0=" pop ax"
pascal@21754 364 if (/inc /) { r=$2; print; next }
pascal@21754 365 if (/al,0/) print " mov al,[" r "]"
pascal@21754 366 if (/al,byte ptr/) sub(/mov/,"xchg")
pascal@21754 367 if (/byte ptr \[.*\],0/) next
pascal@21791 368 if (/jmp/) {
pascal@21791 369 print " mov bx,si"
pascal@21791 370 $0=" db 0A8h ; test al,xx instead of " $0
pascal@21791 371 }
pascal@21754 372 if (/word ptr \[bp-4\]/) next
pascal@21754 373 if (/\) s\+\+;/ || /\],-1/) isiso=0
pascal@21735 374 }
pascal@21791 375 } # file == "iso9660.cpp" || file == "tazboot.cpp"
pascal@21791 376 if (file == "iso9660.cpp") {
pascal@21735 377 if (/endname = NULL/) isiso=2
pascal@21735 378 if (isiso == 2) { # ISO9660.LST
pascal@21735 379 if (/mov bx,cx/) next
pascal@21735 380 gsub(/cx/,"bx")
pascal@21754 381 sub(/DGROUP:_isostate\+35/,"[si+35]")
pascal@21735 382 }
pascal@21735 383 if (/const char \*n = name/) isiso=1
pascal@21735 384 if (isiso == 1) { # ISO9660.LST
pascal@21735 385 if ((/mov word ptr \[si\+32\],ax/ ) ||
pascal@21754 386 (/mov ax,word ptr \[si\+2\]/) ||
pascal@21735 387 (/bx,word ptr \[si\+32\]/) || (/ax,dx/)) next
pascal@21729 388 if (/dx,/) sub(/dx/,"ax")
pascal@21754 389 if ((/sub ax,word ptr \[si\+2\]/) ||
pascal@21754 390 (/\[si\+16\]/) || (/ax,di/)) sub(/ax/,"bx")
pascal@21754 391 if (/add word ptr \[si\+32\],ax/) $0=" add bx,word ptr [si+16]"
pascal@21735 392 if (/al,/ || /,al/) sub(/al/,"cl")
pascal@21754 393 if (/cmp byte ptr \[si\+34\],0/) $0=" or cl,cl"
pascal@23989 394 if (/ax,ax/) next
pascal@23989 395 if (/short @.@506/) $0=" jmp return0"
pascal@21735 396 if (/jne @@0$/) next
pascal@23984 397 if (/jmp @.@58$/) sub(/jmp/,"je")
pascal@21754 398 sub(/mov ax,-1/,"dec ax")
pascal@21754 399 }
pascal@21791 400 } # file == "iso9660.cpp"
pascal@21754 401 if (/endp/) { xlabel = ""; goto2=0 }
pascal@21801 402 if (/isoopen\(s\+7\)/ && xlabel == "") goto2=1 # tazboot/bootiso
pascal@21801 403 if (/_vid_mode,ax/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 404 if (/_initrd_name,si/ && xlabel == "") goto2=1 # tazboot/main
pascal@21801 405 if (/_base_himem\+2,/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21801 406 if (/DGROUP:_skip_alloc/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
pascal@21754 407 if (/puts\(cmdline\)/ && xlabel == "@@") goto2=1
pascal@21754 408 if (goto2 == 1 && /jmp/) { # TAZBOOT.LST && LINLD.LST
pascal@21754 409 print $NF xlabel "@:"
pascal@21754 410 label=$NF
pascal@21754 411 }
pascal@21754 412 if (goto2 > 0 && label == $NF) {
pascal@21754 413 $0=$0 xlabel
pascal@21754 414 if (goto2++ == 1) xlabel=xlabel "@"
pascal@21754 415 }
pascal@21801 416 if (file == "tazboot.cpp" && /close\(x/) isotazboot=16
pascal@21801 417 if (isotazboot == 160) { # TAZBOOT.LST
pascal@21801 418 $0="; " $0
pascal@21801 419 if (/ret/) isotazboot=0
pascal@21801 420 }
pascal@21801 421 if (isotazboot == 16) { # TAZBOOT.LST
pascal@21801 422 if (/@.@/) {
pascal@21801 423 isotazboot=160
pascal@21801 424 next
pascal@21801 425 }
pascal@21801 426 }
pascal@21801 427 if (file == "tazboot.cpp" && /jne @@2/) isotazboot=15
pascal@21801 428 if (isotazboot == 15) { # TAZBOOT.LST
pascal@21801 429 if (/@.@/) {
pascal@21801 430 print " pop di"
pascal@21801 431 print " pop si"
pascal@21801 432 print " mov sp,bp"
pascal@21801 433 print " pop bp"
pascal@21801 434 print " ret"
pascal@21801 435 next
pascal@21801 436 }
pascal@21801 437 if (/skip_alloc/) isotazboot=0
pascal@21801 438 }
pascal@21791 439 if (/if\(\*s>=/) isotazboot=14
pascal@21791 440 if (isotazboot == 14) { # LINLD.LST
pascal@21791 441 if (/jmp/) {
pascal@21791 442 $0=" db 0A9h ; test ax,xxxx instead of " $0
pascal@21791 443 isotazboot=0
pascal@21791 444 }
pascal@21791 445 }
pascal@21801 446 if (file == "tazboot.cpp" && /; s \+= 4/) isotazboot=13 # tazboot/main
pascal@21791 447 if (isotazboot == 13) { # TAZBOOT.LST
pascal@21791 448 if (/si,4/) $0=" lea bx,[si+4]"
pascal@21791 449 if (/bx,si/) next
pascal@21791 450 if (/DGROUP:_topmem/ || /set_iso/) isotazboot=0
pascal@21791 451 }
pascal@21801 452 if (file == "tazboot.cpp" && /case 0x652F:/) isotazboot=12 # tazboot/main
pascal@21791 453 if (isotazboot == 12) { # TAZBOOT.LST
pascal@21791 454 sub(/si,word/,"bx,word")
pascal@21791 455 if (/short/) isotazboot=0
pascal@21791 456 }
pascal@21801 457 if (/return load_kernel/) isotazboot=11 # tazboot/isokernel
pascal@21791 458 if (isotazboot == 11) { # TAZBOOT.LST
pascal@21791 459 sub(/call/,"jmp")
pascal@21791 460 if (/ret/ || /pop/) next
pascal@21791 461 if (/endp/) isotazboot=0
pascal@21791 462 }
pascal@21801 463 if (/cmdline=s\+=3/ || /magic \!= 0/ || /&root_dev =/) { isotazboot=10; j="" } # ,tazboot/bootiso,tazboot/main
pascal@21754 464 if (isotazboot == 10) { # TAZBOOT.LST && LINLD.LST
pascal@21754 465 if (/je/ || /jne/) { j=$1; next }
pascal@21754 466 if (/jmp/) {
pascal@21754 467 if (j=="jne") sub(/jmp/,"je")
pascal@21754 468 else if (j=="je") sub(/jmp/,"jne")
pascal@21754 469 isotazboot=0
pascal@21754 470 }
pascal@21754 471 }
pascal@21801 472 if (/static const unsigned long initrddesc = 18L/) isotazboot=9 # tazboot/bootiso
pascal@21754 473 if (isotazboot == 9) { # TAZBOOT.LST
pascal@21754 474 if (/,0/) {
pascal@21754 475 split($4,y,",")
pascal@21754 476 print " mov bx,offset " y[1]
pascal@21801 477 sub(/DGROUP:.*,/,"[bx],")
pascal@21754 478 }
pascal@21801 479 if (/mov/ && $3 == y[1]) next
pascal@21801 480 if (/je/) next
pascal@21801 481 if (/jmp/) sub(/jmp/,"jne")
pascal@21801 482 sub(/ax,offset/,"bx,offset")
pascal@21801 483 if (/bx,ax/) { isotazboot=0; next }
pascal@21729 484 }
pascal@21801 485 if (/isoopen\(s\+7\) != -1/) isotazboot=8 # tazboot/bootiso
pascal@21750 486 if (isotazboot == 8) { # TAZBOOT.LST
pascal@21801 487 sub(/\[bx/,"[si")
pascal@21801 488 if (/bx,si/) next
pascal@21750 489 if (/magic/) isotazboot=0
pascal@21750 490 }
pascal@21801 491 if (/isoopen\(\"bzImage\"\)/) isotazboot=7 # tazboot/bootiso
pascal@21750 492 if (isotazboot == 7) { # TAZBOOT.LST
pascal@21791 493 if (/inc/ || /,al/) next
pascal@21791 494 if (/al,byte/) sub (/mov al,/,"inc ")
pascal@21750 495 if (/isokernel/) isotazboot=0
pascal@21750 496 }
pascal@21801 497 if (/if \(c\) s\+\+;/) isotazboot=6 # tazboot/main
pascal@21750 498 if (isotazboot == 6) { # TAZBOOT.LST
pascal@21750 499 if (/cmp/) {
pascal@21750 500 $0=" cmp al,0"
pascal@21750 501 isotazboot=0
pascal@21750 502 }
pascal@21750 503 }
pascal@21801 504 if (/static void next_chunk/) isotazboot=5 # tazboot/next_chunk
pascal@21791 505 if (isotazboot == 501) {
pascal@21791 506 if (/ret/) {
pascal@21791 507 print "@1@86:"
pascal@21791 508 isotazboot=0
pascal@21791 509 }
pascal@21791 510 }
pascal@21754 511 if (isotazboot == 5 || isotazboot == 500) { # TAZBOOT.LST
pascal@21750 512 if (/cx,ax/) $0=" xchg ax,bx"
pascal@21754 513 if (/ax,word ptr \[si\+28\]/ && isotazboot == 500) next
pascal@21750 514 if (/bx,cx/) next
pascal@21754 515 if (/push/ || /pop/ || /bp,sp/ || /si,/) next
pascal@21754 516 sub(/\[si/,"[di")
pascal@21754 517 if (/initrd_info/) isotazboot=500
pascal@21791 518 if (/bx\+6\]/) next
pascal@21791 519 if (/bx\+4\]/) sub(/mov dx,/,"les dx,d")
pascal@21791 520 sub(/di\+24\],ax/,"di+24],es")
pascal@21791 521 sub(/call/,"jmp")
pascal@21791 522 if (/ret/ || /pop/ || /^@1@86:/) next
pascal@21791 523 if (/_isostate\+14/) next
pascal@21791 524 if (/_isostate\+12/) {
pascal@21791 525 sub(/mov ax,/,"les ax,d")
pascal@21791 526 print
pascal@21791 527 print " mov dx,es"
pascal@21791 528 next
pascal@21791 529 }
pascal@21791 530 if (/ax,-4/) isotazboot++
pascal@21750 531 }
pascal@21801 532 if (/0x7FF0/) isotazboot=4 # tazboot/bootiso
pascal@21750 533 if (isotazboot == 4) { # TAZBOOT.LST
pascal@21750 534 if (/ax,word ptr/) {
pascal@21750 535 print " mov ax,32752"
pascal@21754 536 print " cwd"
pascal@21750 537 sub(/mov/,"sub")
pascal@21750 538 }
pascal@21750 539 if (/bx,/ || /cx,/ || /dx,/) next
pascal@21754 540 sub(/,0/,",dx")
pascal@21754 541 sub(/,bx/,",dx")
pascal@21750 542 sub(/,cx/,",ax")
pascal@21754 543 if (/@addinitrd\$qv/) isotazboot=0
pascal@21750 544 }
pascal@21801 545 if (/c = x->filename/) isotazboot=3 # tazboot/bootiso
pascal@21750 546 if (isotazboot == 3) { # TAZBOOT.LST
pascal@21750 547 if (/ax,/) $0=" xchg ax,bx"
pascal@21750 548 if (/\]$/) next
pascal@21750 549 if (/@strcpy\$qpxzct1/) isotazboot=0
pascal@21750 550 }
pascal@21801 551 if (/base_himem = memtop/) isotazboot=2 # tazboot/bootiso
pascal@21750 552 if (isotazboot == 2) { # TAZBOOT.LST
pascal@21801 553 if (/word ptr \[si\+2\],0/) {
pascal@21754 554 print s; hold=0
pascal@21801 555 print " mov bx,word ptr [si+2]"
pascal@21752 556 $0=" or bx,bx"
pascal@21752 557 }
pascal@21752 558 if (/\[bp-4\],ax/) sub(/ax/,"bx")
pascal@21801 559 if (/ax,word ptr \[si\+2\]/ || /bx,ax/) next
pascal@21791 560 if (/_base_himem\+2,dx/) {
pascal@21791 561 print " mov bx,offset DGROUP:_base_himem+2"
pascal@21791 562 }
pascal@21791 563 sub(/DGROUP:_base_himem,/,"[bx-2],")
pascal@21791 564 sub(/DGROUP:_base_himem\+2,/,"[bx],")
pascal@21791 565 sub(/DGROUP:_base_himem\+3,/,"[bx+1],")
pascal@21750 566 if (/@strcmp\$qpxzct1/) isotazboot=0
pascal@21750 567 }
pascal@21801 568 if (/static void addinitrd/) isotazboot=100 # tazboot/addinitrd
pascal@21751 569 if (isotazboot == 100) { # TAZBOOT.LST
pascal@21751 570 if (/cx,ax/) {
pascal@21754 571 print " mov si,offset _isostate+8"
pascal@21757 572 print " push ds"
pascal@21757 573 print " pop es"
pascal@21754 574 print " xchg ax,di"
pascal@21751 575 print " movsw"
pascal@21751 576 print " movsw"
pascal@21751 577 print " movsw"
pascal@21751 578 print " movsw"
pascal@21754 579 $0=" xchg ax,di"
pascal@21751 580 }
pascal@21751 581 if (/mov/ && !/si/ && !/cl/) next
pascal@21754 582 if (/void load_initrds/) isotazboot=101
pascal@21751 583 }
pascal@21754 584 if (isotazboot == 101 || isotazboot == 102) { # TAZBOOT.LST
pascal@21754 585 sub(/\[si/,"[di"); sub(/si,/,"di,"); sub(/si$/,"di")
pascal@21754 586 sub(/DGROUP:_imgs\+38$/,"[di+38-32]")
pascal@21754 587 sub(/DGROUP:_imgs\+40$/,"[di+40-32]")
pascal@21754 588 if (/isofd/) isotazboot=102
pascal@21754 589 if (/push/ && isotazboot == 102) next
pascal@21754 590 if (/pop/ && isotazboot == 102) next
pascal@21754 591 if (/load_initrd/) isotazboot=101
pascal@21754 592 if (/isokernel/) isotazboot=103
pascal@21754 593 }
pascal@21754 594 if (isotazboot > 102) { # TAZBOOT.LST
pascal@21754 595 if (/push/ || /pop/) next
pascal@21754 596 sub(/\[si/,"[bx")
pascal@21750 597 sub(/si,/,"bx,")
pascal@21750 598 if (/static void bootiso/) isotazboot=0
pascal@21750 599 }
pascal@21729 600 if (wascall) {
pascal@21729 601 if (rcall != "") {
pascal@21729 602 if (/,ax$/) print " mov " rcall ",ax"
pascal@21729 603 else print " xchg ax," rcall
pascal@21729 604 wascall=0
pascal@21729 605 }
pascal@21729 606 else if (/^ mov .i,ax$/) {
pascal@21729 607 split($2,y,",")
pascal@21729 608 rcall=y[1]
pascal@21729 609 next
pascal@21729 610 }
pascal@21729 611 else wascall=0
pascal@21729 612 }
pascal@21729 613 if (/^ call /) { wascall=1; rcall="" }
pascal@20458 614 if (hold == 0) {
pascal@20458 615 s=$0
pascal@20534 616 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
pascal@20543 617 r=$2; kept=0
pascal@20458 618 hold=1; split($2,regs,","); next
pascal@20458 619 }
pascal@21729 620 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
pascal@20458 621 hold=2; r=$2; next
pascal@20458 622 }
pascal@20458 623 if (/^ mov [abcds][ix],/ && ! /,.s/) {
pascal@20458 624 hold=3; split($2,regs,","); next
pascal@20458 625 }
pascal@20458 626 if (/^ movzx eax,ax$/) { hold=4; next }
pascal@20544 627 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
pascal@20543 628 split($0,regs,",")
pascal@20543 629 if (isnum(regs[2]) && regs[2] != 0 &&
pascal@20543 630 (regs[2] % 256) == 0) {
pascal@20549 631 hold=5; next
pascal@20543 632 }
pascal@20543 633 }
pascal@20630 634 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
pascal@20630 635 if (/^ mov cl,4$/) { hold=7; next }
pascal@20630 636 if (/^ cmp word ptr DGROUP:.*,0$/) {
pascal@20630 637 hold=8; split($2,regs,","); next
pascal@20630 638 }
pascal@20634 639 if (/^ cbw/) { hold=11; kept=0; next }
pascal@20634 640 if (/^ add [abcds][ix],2$/) {
pascal@20634 641 split($2,regs,","); hold=12; next
pascal@20634 642 }
pascal@20634 643 if (/^ sub [abcds][ix],2$/) {
pascal@20634 644 split($2,regs,","); hold=13; next
pascal@20634 645 }
pascal@21569 646 if (/^ push dx$/) {
pascal@21569 647 hold=14; next;
pascal@21569 648 }
pascal@20458 649 }
pascal@20458 650 else if (hold == 1) {
pascal@20543 651 if (/^ ;/) { line[kept++]=$0; next }
pascal@20458 652 hold=0; split($2,args,","); op=""
pascal@20458 653 if ($1 == "add") op="+"
pascal@20458 654 if ($1 == "sub") op="-"
pascal@20751 655 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 656 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20543 657 if (op != "" && regs[1] == args[1]) {
pascal@20543 658 if (isnum(args[2])) {
pascal@20630 659 for (i = kept++; i > 0; i--) line[i] = line[i-1]
pascal@20630 660 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
pascal@22288 661 sub(/\+-/,"-",line[0])
pascal@20630 662 hold=10; next
pascal@20543 663 }
pascal@20543 664 line[kept++]=$0
pascal@20543 665 hold=1
pascal@20458 666 next
pascal@20458 667 }
pascal@20520 668 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
pascal@20520 669 print " xchg " r
pascal@20520 670 }
pascal@20543 671 else print s
pascal@20543 672 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20458 673 }
pascal@20458 674 else if (hold == 2) {
pascal@21729 675 split($0,args,",")
pascal@21729 676 if (/^ mov / && r == args[2]) { print s; s=$0; next }
pascal@21729 677 split($2,args,",")
pascal@21729 678 hold=0; print s
pascal@20458 679 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
pascal@20458 680 }
pascal@20458 681 else if (hold == 3) {
pascal@20458 682 hold=0
pascal@21576 683 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
pascal@20542 684 if (/^ add [abcds][ix],/) {
pascal@20458 685 split($2,regs2,",")
pascal@20458 686 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
pascal@20549 687 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
pascal@20458 688 print t; print s; next
pascal@20458 689 }
pascal@20458 690 }
pascal@20458 691 print s
pascal@20458 692 }
pascal@20458 693 else if (hold == 4) {
pascal@20458 694 hold=0
pascal@20458 695 if (/^ push eax$/) {
pascal@20458 696 print " push 0"; print " push ax"; next
pascal@20458 697 } else { print s }
pascal@20458 698 }
pascal@20543 699 else if (hold == 5) {
pascal@20543 700 hold=0
pascal@20543 701 if ($1 == "jae" || $1 == "jb") {
pascal@20544 702 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 703 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20543 704 s = s "/256"
pascal@20543 705 }
pascal@20543 706 print s
pascal@20543 707 }
pascal@20630 708 else if (hold == 6) {
pascal@20630 709 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
pascal@20630 710 line[kept++]=$0
pascal@20630 711 next
pascal@20630 712 }
pascal@20630 713 p=$0
pascal@20630 714 if (/^ movzx eax,ax$/) {
pascal@20630 715 s=" mov eax,cs"; p=""
pascal@20630 716 }
pascal@20630 717 print s
pascal@20630 718 for (i = 0; i < kept; i++) print line[i]; kept=0
pascal@20630 719 if (p != "") print p
pascal@20630 720 hold=0; next
pascal@20630 721 }
pascal@20630 722 else if (hold == 7) {
pascal@20458 723 hold=0
pascal@20520 724 if (/^ call near ptr N_LXURSH@$/) {
pascal@20520 725 print " extrn N_LXURSH@4:near"
pascal@20520 726 print " call near ptr N_LXURSH@4"
pascal@20520 727 next
pascal@20520 728 }
pascal@20528 729 if (/^ call near ptr N_LXLSH@$/) {
pascal@20528 730 print " extrn N_LXLSH@4:near"
pascal@20528 731 print " call near ptr N_LXLSH@4"
pascal@20528 732 next
pascal@20528 733 }
pascal@20520 734 print s
pascal@20458 735 }
pascal@20630 736 else if (hold == 8) {
pascal@20630 737 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
pascal@20630 738 hold=0
pascal@20630 739 print s
pascal@20630 740 }
pascal@20630 741 else if (hold == 9) {
pascal@20630 742 hold=0; split($2,args,",")
pascal@20630 743 if (/^ mov ax,/ && args[2] == regs[1]) {
pascal@20630 744 print; print " or ax,ax"; print p; next
pascal@20630 745 }
pascal@20630 746 print s; print p;
pascal@20630 747 }
pascal@20630 748 else if (hold == 10) {
pascal@20751 749 split($2,args,","); op=""
pascal@20751 750 if ($1 == "add") op="+"
pascal@20751 751 if ($1 == "sub") op="-"
pascal@20751 752 if ($1 == "inc") { op="+"; args[2]="1"; }
pascal@20751 753 if ($1 == "dec") { op="-"; args[2]="1"; }
pascal@20751 754 if (op != "" && isnum(args[2])) {
pascal@20751 755 split(line[0],reg,",")
pascal@20751 756 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
pascal@20751 757 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
pascal@20751 758 next
pascal@20751 759 }
pascal@20751 760 }
pascal@20630 761 hold=0
pascal@20630 762 if (/^ mov [sd]i,ax$/) {
pascal@20630 763 split($2,args,",")
pascal@20630 764 for (i = 0; i < kept; i++) {
pascal@20630 765 sub(/ax/,args[1],line[i]); print line[i]
pascal@20630 766 }
pascal@20630 767 next
pascal@20630 768 }
pascal@20630 769 for (i = 0; i < kept; i++) print line[i]
pascal@20630 770 }
pascal@20634 771 else if (hold == 11) {
pascal@20634 772 if (/^ inc ax$/ || /^ dec ax$/) {
pascal@20634 773 line[kept++]=$0; next
pascal@20634 774 }
pascal@20634 775 split($2,args,",")
pascal@20634 776 if (/^ mov cl,/) {
pascal@20634 777 split($2,args,",")
pascal@20634 778 if (args[2] >= 8) {
pascal@20634 779 line[kept++]=$0; next
pascal@20634 780 }
pascal@20634 781 }
pascal@20634 782 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
pascal@20634 783 print " cbw "
pascal@20634 784 }
pascal@20634 785 for (i = 0; i < kept; i++) print line[i]
pascal@20634 786 hold=kept=0
pascal@20634 787 }
pascal@20634 788 else if (hold == 12) {
pascal@20634 789 hold=0
pascal@20634 790 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 791 print " inc " regs[1]
pascal@20634 792 print " inc " regs[1]
pascal@20634 793 }
pascal@20634 794 else print " add " regs[1] ",2"
pascal@20634 795 }
pascal@20634 796 else if (hold == 13) {
pascal@20634 797 hold=0
pascal@20634 798 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
pascal@20634 799 print " dec " regs[1]
pascal@20634 800 print " dec " regs[1]
pascal@20634 801 }
pascal@20634 802 else print " sub " regs[1] ",2"
pascal@20634 803 }
pascal@21569 804 else if (hold == 14) {
pascal@21569 805 if (/^ push ax$/) { hold++; next; }
pascal@21569 806 print " push dx";
pascal@21569 807 hold=0;
pascal@21569 808 }
pascal@21569 809 else if (hold == 15) {
pascal@21569 810 if (/^ pop eax$/) { hold++; next; }
pascal@21569 811 print " push dx";
pascal@21569 812 print " push ax";
pascal@21569 813 hold=0;
pascal@21569 814 }
pascal@21569 815 else if (hold == 16) {
pascal@21569 816 hold=0;
pascal@21569 817 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
pascal@21569 818 print " push dx";
pascal@21569 819 print " push ax";
pascal@21569 820 print " pop eax";
pascal@21569 821 }
pascal@21569 822 else if (hold == 17) {
pascal@21569 823 hold=0;
pascal@21569 824 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
pascal@21569 825 }
pascal@21576 826 if (/^ call near ptr @fileexist\$/ || # return boolean :
pascal@21576 827 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
pascal@21628 828 /^ call near ptr @isoreset\$/ ||
pascal@21628 829 /^ call near ptr @isoopen\$/ ||
pascal@21628 830 /^ call near ptr @isoreadsector\$/ ||
pascal@21628 831 /^ call near ptr @strhead\$/ ||
pascal@23984 832 /^ call near ptr @strcmp\$/ ||
pascal@21576 833 /^ call near ptr @argstr\$/ ||
pascal@21576 834 /^ call near ptr @argnum\$/) { print; hold=17; next; }
pascal@20458 835 s=$0
pascal@20458 836 # These optimisation may break ZF or CF
pascal@20485 837 if (/^ sub sp,2$/) { print " push ax"; next }
pascal@20485 838 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
pascal@20485 839 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
pascal@20458 840 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
pascal@20458 841 sub(/mov/,"and",s); print s; next # slower
pascal@20458 842 }
pascal@20458 843 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
pascal@20458 844 sub(/mov/,"or",s); print s; next # slower
pascal@20458 845 }
pascal@20458 846 if (/^ or .*,0$/ || /^ and .*,-1$/) next
pascal@20458 847 if (/^ or [abcd]x,/) {
pascal@20458 848 split($2,args,",")
pascal@20458 849 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 850 print " or " substr(args[1],1,1) "l," args[2]; next
pascal@20458 851 }
pascal@20458 852 }
pascal@20458 853 if (/^ and [abcd]x,/) {
pascal@20458 854 split($2,args,",")
pascal@20459 855 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 856 print " and " substr(args[1],1,1) "l," args[2]; next
pascal@20458 857 }
pascal@20458 858 }
pascal@20458 859 if (/^ or e[abcd]x,/) {
pascal@20458 860 split($2,args,",")
pascal@20458 861 if (args[2] == "large") { args[2] = $3 }
pascal@20458 862 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
pascal@20458 863 print " or " substr(args[1],2,1) "l," args[2]; next
pascal@20458 864 }
pascal@20458 865 }
pascal@20458 866 if (/^ and e[abcd]x,/) {
pascal@20458 867 split($2,args,",")
pascal@20458 868 if (args[2] == "large") { args[2] = $3 }
pascal@20459 869 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
pascal@20458 870 print " and " substr(args[1],2,1) "l," args[2]; next
pascal@20458 871 }
pascal@20458 872 }
pascal@20458 873 if (/^ or e[abcds][ix],/) {
pascal@20458 874 split($2,args,",")
pascal@20458 875 if (args[2] == "large") { args[2] = $3 }
pascal@20458 876 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
pascal@20458 877 print " or " substr(args[1],2) "," args[2]; next
pascal@20458 878 }
pascal@20458 879 }
pascal@20458 880 if (/^ and e[abcds][ix],/) {
pascal@20458 881 split($2,args,",")
pascal@20458 882 if (args[2] == "large") { args[2] = $3 }
pascal@20459 883 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
pascal@20458 884 print " and " substr(args[1],2) "," args[2]; next
pascal@20458 885 }
pascal@20458 886 }
pascal@20543 887 if (/^ add word ptr/ || /^ sub word ptr/ ||
pascal@20544 888 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
pascal@20542 889 split($0,args,",")
pascal@20542 890 if (isnum(args[2]) && (args[2] % 256 == 0)) {
pascal@20544 891 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
pascal@20543 892 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
pascal@20542 893 print s "/256"; next
pascal@20542 894 }
pascal@20542 895 }
pascal@20546 896 if (/^ add dword ptr/ || /^ sub dword ptr/) {
pascal@20458 897 split($0,args,",")
pascal@20543 898 if (args[2] == "large") { args[2] = $3 }
pascal@20458 899 if (isnum(args[2])) {
pascal@20546 900 if (args[2] % 16777216 == 0) {
pascal@20546 901 sub(/dword/,"byte",s)
pascal@20543 902 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
pascal@20458 903 print s "/16777216"; next
pascal@20458 904 }
pascal@20458 905 if (args[2] % 65536 == 0) {
pascal@20546 906 sub(/dword/,"word",s)
pascal@20543 907 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
pascal@20458 908 print s "/65536"; next
pascal@20458 909 }
pascal@20458 910 }
pascal@20458 911 }
pascal@20458 912 if (/^ mov e.x,/) {
pascal@20458 913 split($2,args,",")
pascal@20458 914 r=args[1]
pascal@20458 915 if (args[2] == "large") { args[2] = $3 }
pascal@20458 916 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
pascal@20458 917 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
pascal@20458 918 print " xor " r "," r
pascal@20458 919 if (args[2] == 0) next
pascal@20458 920 x=" mov " substr(r,2,1)
pascal@20458 921 if (args[2] % 256 == 0) {
pascal@20458 922 print x "h," args[2] "/256"
pascal@20458 923 }
pascal@20458 924 else { print x "l," args[2] }
pascal@20458 925 next
pascal@20458 926 }
pascal@20458 927 }
pascal@20458 928 }
pascal@21576 929 if (afterjmp) print ";" $0
pascal@21576 930 else print
pascal@21754 931 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
pascal@23992 932 /^ call near ptr @die\$qpxzc/ ||
pascal@23992 933 /^ call near ptr @exit\$qv/) afterjmp=1
pascal@20458 934 }