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 == "linld.cpp") {
|
pascal@24013
|
12 if (/\[si/ || /si,/ || /,si/) sub(/si/,"di")
|
pascal@24013
|
13 else if (/\[di/ || /di,/ || /,di/) sub(/di/,"si")
|
pascal@21984
|
14 if (/add di,2/) $0=" scasw ; " $0
|
pascal@24013
|
15 if (/bx,di/ || /\[bp-2\]/) next
|
pascal@24013
|
16 sub(/\[bx\],0/,"[di],0")
|
pascal@21984
|
17 if (islinld==1) {
|
pascal@24013
|
18 if (/,word.*/) islinld=0
|
pascal@21984
|
19 print "; " $0
|
pascal@24013
|
20 next
|
pascal@21984
|
21 }
|
pascal@21984
|
22 if (/^_main proc/) islinld=1
|
pascal@21984
|
23 if (/image\|initrd/) islinld=3
|
pascal@24013
|
24 if (islinld==3 && /bx,word ptr/) { print "; " $0; next }
|
pascal@21984
|
25 if (/fileexist\$qpxzc/) islinld=4
|
pascal@21984
|
26 if (islinld==4) {
|
pascal@23993
|
27 if (/ax,-1/) {
|
pascal@23993
|
28 print " inc ax"
|
pascal@24013
|
29 print " mov ax,word ptr [di]"
|
pascal@23993
|
30 next
|
pascal@23993
|
31 }
|
pascal@23993
|
32 if (/ax,word ptr/) next
|
pascal@21984
|
33 }
|
pascal@23992
|
34 if (/buf_cmdline\+1/) {
|
pascal@23992
|
35 islinld=5
|
pascal@23996
|
36 print " mov bx,offset DGROUP:_buf_cmdline+1"
|
pascal@23996
|
37 sub(/offset DGROUP:_buf_cmdline\+1/,"bx")
|
pascal@23992
|
38 }
|
pascal@23804
|
39 if (islinld==5) {
|
pascal@23996
|
40 if (/bx,offset DGROUP:_buf_cmdline/) $0=" dec bx"
|
pascal@23993
|
41 if (/ax,word ptr/) next
|
pascal@23992
|
42 if (/call/) islinld=0
|
pascal@23804
|
43 }
|
pascal@23996
|
44 if (/bx,word ptr DGROUP:_cmdstr\+6/) next
|
pascal@23996
|
45 if (/_cmdstr\+6,0/) {
|
pascal@24013
|
46 print " mov bx,word ptr [si+6]"
|
pascal@23996
|
47 $0=" or bx,bx"
|
pascal@23996
|
48 }
|
pascal@21984
|
49 } # file == "linld.cpp"
|
pascal@21791
|
50 if (file == "himem.cpp") {
|
pascal@23989
|
51 if (/sp,bp/ || /pop bp/) next
|
pascal@21984
|
52 if (/void load_image/) ishimem=1
|
pascal@21791
|
53 if (ishimem == 1 && is386 == 0) {
|
pascal@21791
|
54 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
|
pascal@21791
|
55 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
|
pascal@24013
|
56 if (/si\+12\],ax/ || /si\+16\],ax/ || /di\+2\],ax/ || /DGROUP:_himem_buf\+2,ax/) sub(/,ax/,",es")
|
pascal@23996
|
57 if (/dx,dword ptr \[si\+14\]/ || /DGROUP:_himem_buf,dx/) sub(/dx/,"ax")
|
pascal@21984
|
58 }
|
pascal@21984
|
59 if (ishimem == 1) {
|
pascal@21984
|
60 if (/do \{/) ishimem=2
|
pascal@23991
|
61 if (/bx,si/ || /push bp/ || /bp,sp/ || /push di/ || /push si/) next
|
pascal@23996
|
62 if (/sp,2/ || /bp\+4/) next
|
pascal@21984
|
63 }
|
pascal@21984
|
64 if (ishimem == 2) {
|
pascal@21984
|
65 if (/movzx/) print " cwde"
|
pascal@23996
|
66 if (/bp-2/ || /di,ax/ || /bx,di/ || /bx,si/) next
|
pascal@21984
|
67 if (/storepage.bufv/) {
|
pascal@21984
|
68 print " inc ax"
|
pascal@21984
|
69 print " push ax"
|
pascal@21984
|
70 }
|
pascal@21984
|
71 if (/buf \+= size;/) {
|
pascal@21984
|
72 print " pop ax"
|
pascal@21984
|
73 }
|
pascal@23996
|
74 if (/i\+12/) ishimem=20
|
pascal@23996
|
75 }
|
pascal@23996
|
76 if (ishimem == 20) {
|
pascal@24013
|
77 if (/loadfail/) next
|
pascal@23996
|
78 if (/je/) {
|
pascal@23996
|
79 print " extrn jmploadfailure"
|
pascal@23996
|
80 $0=" jne short jmploadfailure"
|
pascal@23996
|
81 }
|
pascal@23989
|
82 if (/endp/) ishimem=0
|
pascal@21791
|
83 }
|
pascal@23992
|
84 if (/@memcpy_image\$qp11image_himem/) next
|
pascal@24013
|
85 if (/far last_ditch/) ishimem=3
|
pascal@23992
|
86 if (ishimem == 3) {
|
pascal@23996
|
87 sub(/DGROUP:_imgs\+4,/,"[si+4],")
|
pascal@24013
|
88 if (/bx,di/ || /di,ax/) next
|
pascal@23992
|
89 }
|
pascal@21791
|
90 } # file == "himem.cpp"
|
pascal@21791
|
91 if (file == "load.cpp") {
|
pascal@23996
|
92 if (isload != 3 && isload != 6) { # LOAD.LST
|
pascal@23996
|
93 if (/,si/ || /si,/ || /\[si/) sub(/si/,"di")
|
pascal@23996
|
94 else if (/,di/ || /di,/ || /\[di/) sub(/di/,"si")
|
pascal@23996
|
95 }
|
pascal@23996
|
96 if (/moverm\(/) isload=16
|
pascal@23996
|
97 if (isload != 16 && /bx,si/) next
|
pascal@23996
|
98 if (/@moverm/) isload=0
|
pascal@23992
|
99 if (/readrm\(m, 0x200/) isload=15
|
pascal@23992
|
100 if (isload == 15) { # LOAD.LST
|
pascal@23996
|
101 if (/bx,si/) next
|
pascal@23992
|
102 if (/call/) isload=0
|
pascal@23992
|
103 }
|
pascal@23989
|
104 if (/load_image\(/) {
|
pascal@23989
|
105 if (isload == 3) isload=13
|
pascal@23989
|
106 else isload=14
|
pascal@23989
|
107 }
|
pascal@23989
|
108 if (isload == 14) { # LOAD.LST
|
pascal@23996
|
109 if (/call/) $0=" jmp short load_imagez"
|
pascal@23989
|
110 if (/ret/) isload=0
|
pascal@23989
|
111 if (/pop/ || /ret/ || /push/) next
|
pascal@23989
|
112 }
|
pascal@23989
|
113 if (isload == 13) { # LOAD.LST
|
pascal@23991
|
114 if (/pop/) isload=3
|
pascal@23991
|
115 if (/push/ || /call/ || /pop/) next
|
pascal@23989
|
116 }
|
pascal@22152
|
117 if (/i\+21\],513$/) isload=11
|
pascal@21984
|
118 if (isload == 12) { # LOAD.LST
|
pascal@21984
|
119 if (/cmp/) next
|
pascal@21984
|
120 if (/jb/) isload=0
|
pascal@21984
|
121 sub(/jb/,"jcxz")
|
pascal@21984
|
122 }
|
pascal@21984
|
123 if (isload == 11) { # LOAD.LST
|
pascal@21984
|
124 if (/cmp/) {
|
pascal@21984
|
125 print " mov cx,513"
|
pascal@22152
|
126 sub(/cmp /,"sub cx,")
|
pascal@22152
|
127 sub(/,513/,"")
|
pascal@21984
|
128 }
|
pascal@21984
|
129 if (/jb/) isload=12
|
pascal@21984
|
130 sub(/jb/,"ja")
|
pascal@21984
|
131 }
|
pascal@22170
|
132 sub(/_imgs\+65534/,"_imgs-2")
|
pascal@21791
|
133 if (/setup_sects == 0/) isload=9
|
pascal@21791
|
134 if (isload == 9) { # LOAD.LST
|
pascal@23999
|
135 sub(/,0/,",al ; worst case 2k boundary (iso)")
|
pascal@21791
|
136 if (/jne/) isload=0
|
pascal@21791
|
137 }
|
pascal@21757
|
138 if (/cmd_line_ptr =/ && is386 == 0) isload=7
|
pascal@21757
|
139 if (isload == 7) { # LOAD.LST
|
pascal@22181
|
140 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
|
pascal@22170
|
141 if (/enable A20 if needed/) { print nextinst; isload=0 }
|
pascal@22152
|
142 if (/i-463/) $0=" mov bx,-463"
|
pascal@22170
|
143 if (/i-465/) {
|
pascal@22170
|
144 sub(/465/,"2"); sub(/\[/,"[bx+")
|
pascal@22170
|
145 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
|
pascal@22170
|
146 }
|
pascal@21757
|
147 if (/,dx/) {
|
pascal@21757
|
148 print " mov cl,12"
|
pascal@21757
|
149 print " shr ax,cl"
|
pascal@22181
|
150 print " mov bx,55"
|
pascal@21757
|
151 sub(/dx/,"ax")
|
pascal@21757
|
152 }
|
pascal@21757
|
153 }
|
pascal@23992
|
154 if (/pm_low == 0/) {
|
pascal@23991
|
155 print " push di"
|
pascal@23996
|
156 print " push si"
|
pascal@23991
|
157 isload=6
|
pascal@23991
|
158 }
|
pascal@21757
|
159 if (isload == 6) { # LOAD.LST
|
pascal@23991
|
160 if (/si\+2/) {
|
pascal@23991
|
161 print " cmpsw"
|
pascal@23991
|
162 next
|
pascal@23991
|
163 }
|
pascal@23989
|
164 if (/les/) sub(/bx,/,"di,")
|
pascal@23991
|
165 if (/bx\+4/ || /es:/ || /call/ || /pop/ || /ret/) next
|
pascal@23989
|
166 if (/si\+6/) {
|
pascal@23989
|
167 print " movsw"
|
pascal@23989
|
168 print " movsw"
|
pascal@23989
|
169 print " movsw"
|
pascal@23989
|
170 print " movsw"
|
pascal@23996
|
171 print " pop si"
|
pascal@23991
|
172 print "load_imagez:"
|
pascal@21757
|
173 next
|
pascal@21757
|
174 }
|
pascal@21757
|
175 }
|
pascal@21757
|
176 if (isload == 5) { # LOAD.LST
|
pascal@21757
|
177 sub(/ax,/,"bx,")
|
pascal@23996
|
178 if (/@puts\$qpxzc/) isload=0
|
pascal@21757
|
179 if (/mov bx,ax/) next
|
pascal@23996
|
180 sub(/,word ptr \[di\+29\]/,",cx")
|
pascal@21757
|
181 }
|
pascal@23996
|
182 if (/_cmdnum\+14/ && is386 == 0) isload=4
|
pascal@22180
|
183 if (isload == 4) { # LOAD.LST
|
pascal@23996
|
184 if (/_cmdnum\+14/) next
|
pascal@23996
|
185 if (/_cmdnum\+12$/) {
|
pascal@23996
|
186 $0=" les dx,dword ptr [bx+12]"
|
pascal@21757
|
187 }
|
pascal@21791
|
188 sub(/,ax/,",es")
|
pascal@22181
|
189 if (/add ax,word ptr/) $0=" add ax,cx"
|
pascal@22181
|
190 if (/i\+29\],0/) {
|
pascal@22181
|
191 sub(/,0$/,"")
|
pascal@22181
|
192 sub(/cmp /,"mov cx,")
|
pascal@22181
|
193 }
|
pascal@22181
|
194 sub(/je/,"jcxz")
|
pascal@23996
|
195 if (/@strcpy/) isload=0
|
pascal@23992
|
196 if (/\+0x200/) isload=5
|
pascal@21757
|
197 }
|
pascal@23996
|
198 if (/void load_initrd\(\)/) { isload=3; isload2=0 }
|
pascal@21754
|
199 if (isload == 3) { # LOAD.LST
|
pascal@23996
|
200 if (/cmdstr\+4,0/) {
|
pascal@23996
|
201 isload2++
|
pascal@23996
|
202 print " mov ax,word ptr DGROUP:_cmdstr+4"
|
pascal@23996
|
203 $0=" or ax,ax"
|
pascal@23996
|
204 }
|
pascal@23996
|
205 if (isload2 && /DGROUP:_cmdstr\+4/) $0=";" $0
|
pascal@23994
|
206 if (/je short @2@.*/) sub(/@2@.*/,"load_initrd_ret")
|
pascal@23992
|
207 if (/mov ax,word ptr \[si\]/) $0=" lodsw"
|
pascal@23991
|
208 if( /jmp/) {
|
pascal@23991
|
209 print "load_initrd_ret:"
|
pascal@23991
|
210 print " pop si"
|
pascal@23991
|
211 print " ret"
|
pascal@23991
|
212 next
|
pascal@23991
|
213 }
|
pascal@23996
|
214 if (/@loadfailure/) {
|
pascal@23996
|
215 print " global jmploadfailure:near"
|
pascal@23996
|
216 print "jmploadfailure:"
|
pascal@23996
|
217 }
|
pascal@21754
|
218 sub(/\[di/,"[bx")
|
pascal@23992
|
219 sub(/di,/,"bx,")
|
pascal@21754
|
220 }
|
pascal@23996
|
221 if (/mode = vid_mode/) { isload=2; print " mov bx,offset _cmdnum" }
|
pascal@21750
|
222 if (isload == 2) { # LOAD.LST
|
pascal@23996
|
223 if (/DGROUP:_cmdnum/) { sub(/DGROUP:_cmdnum/,"[bx"); $0=$0 "]"}
|
pascal@21750
|
224 sub(/,0/,""); sub(/cmp /,"mov cx,")
|
pascal@21750
|
225 sub(/je/,"jcxz")
|
pascal@21750
|
226 if (/ax,word/) next
|
pascal@21750
|
227 sub(/,ax/,",cx")
|
pascal@23992
|
228 if (/starting linux 1\.3\.73/) isload=0
|
pascal@21750
|
229 }
|
pascal@23996
|
230 if (/_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
|
pascal@21750
|
231 if (isload == 1) { # LOAD.LST
|
pascal@21791
|
232 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
|
pascal@21729
|
233 if (/mov al,byte ptr/ && is386) {
|
pascal@22152
|
234 sub(/mov al/,"movzx eax")
|
pascal@21729
|
235 }
|
pascal@21791
|
236 if (is386 == 0) {
|
pascal@23999
|
237 if (/m->size -= _rm_size/) print " cwd ; do not trust rewind result (iso case)"
|
pascal@21791
|
238 sub(/,0$/,",dx")
|
pascal@21791
|
239 }
|
pascal@21729
|
240 if (/ax,word ptr/) next
|
pascal@21729
|
241 if (/^ call/) isload=0
|
pascal@21729
|
242 }
|
pascal@21791
|
243 } # file == "load.cpp"
|
pascal@21791
|
244 if (file == "iso9660.cpp") {
|
pascal@23996
|
245 if (/ptr \[si\+10\],dx/) next
|
pascal@23996
|
246 if (/ptr \[si\+8\],ax/) next
|
pascal@23996
|
247 if (/si\+32/) next
|
pascal@23996
|
248 if (/add word ptr \[si\],ax/) $0=" add word ptr [si],cx"
|
pascal@23996
|
249 if (/ax,word ptr \[si\+24\]/) sub(/mov ax,/,"les ax,d")
|
pascal@23996
|
250 if (/ax,word ptr \[si\+26\]/) next
|
pascal@23996
|
251 if (/word ptr \[si\+29\],ax/) sub(/ax/,"es")
|
pascal@23996
|
252 if (/\[si\],-1/) $0=" not word ptr [si]"
|
pascal@23996
|
253 sub(/di,word ptr DGROUP:_isostate\+2/,"di,word ptr [si+2]")
|
pascal@23996
|
254 if (isiso == 19) { # ISO9660.LST
|
pascal@23996
|
255 if (/short @2@282/) $0=" jc restoreC"
|
pascal@23996
|
256 if (/bp-2/ || /si\+34/ || /ax,dx/ || /cmp ax,-1/) next
|
pascal@23996
|
257 sub(/dx,/,"bx,")
|
pascal@23996
|
258 if (/short @2@282/) sub(/je/,"jnc")
|
pascal@23996
|
259 if (/\[si\+37\],0/) sub(/,0/,",ch")
|
pascal@23996
|
260 if (/@strcmp\$qpxzct1/) {
|
pascal@23996
|
261 print
|
pascal@23996
|
262 print "restoreC:"
|
pascal@23996
|
263 $0=" mov byte ptr [di],cl ; c"
|
pascal@23996
|
264 isiso=1
|
pascal@23996
|
265 }
|
pascal@23996
|
266 }
|
pascal@23996
|
267 if (/ax,-8/) { isiso=18; next }
|
pascal@23996
|
268 if (isiso == 18) { # ISO9660.LST
|
pascal@23996
|
269 if (/ax,ax/) { isiso=0;next }
|
pascal@23996
|
270 sub(/mov/,"sub")
|
pascal@23996
|
271 sub(/,ax/,",8")
|
pascal@23996
|
272 }
|
pascal@23996
|
273 if (isiso == 17) { # ISO9660.LST
|
pascal@23996
|
274 if (/inc di/) $0="; " $0
|
pascal@23996
|
275 if (/_isostate\+205/) {
|
pascal@23996
|
276 print
|
pascal@23996
|
277 $0=" jmp setdirofsnsz"
|
pascal@23996
|
278 }
|
pascal@23996
|
279 else sub(/ax/,"bx")
|
pascal@23996
|
280 if (/si\+24/) isiso=0
|
pascal@23996
|
281 if (/,bx/) next
|
pascal@23996
|
282 if (/isoreadrootsector/) {
|
pascal@23996
|
283 print
|
pascal@23999
|
284 print " xor word ptr [si+39],17475 ; clear C"
|
pascal@23999
|
285 $0=" jne returnNotC"
|
pascal@23996
|
286 }
|
pascal@23996
|
287 }
|
pascal@23996
|
288 if (/cpytodirpage.x->dirpage/) isiso=16
|
pascal@23996
|
289 if (isiso == 16) { # ISO9660.LST
|
pascal@23996
|
290 if (/filesize2dirsize/) {
|
pascal@23996
|
291 print " mov bx,word ptr [si+9]"
|
pascal@23996
|
292 print " mov ax,word ptr [si+13]"
|
pascal@23996
|
293 print "setdirofsnsz:"
|
pascal@23996
|
294 print " mov word ptr [si+26],bx"
|
pascal@23996
|
295 }
|
pascal@23996
|
296 if (/ax,/ || /si\+13/ || /si\+26/) next
|
pascal@23996
|
297 if (/si\+24/) isiso=1
|
pascal@23996
|
298 }
|
pascal@23996
|
299 if (/found:/) isiso=15
|
pascal@23996
|
300 if (/short @1@394/) sub(/@1@394/,"@1@422")
|
pascal@23996
|
301 if (isiso != 15 && /si,offset DGROUP:_isostate/) $0=";" $0
|
pascal@23996
|
302 if (isiso == 15) { # ISO9660.LST
|
pascal@23996
|
303 if (/xor/) {
|
pascal@23996
|
304 print "returnNotC:"
|
pascal@23996
|
305 print " cmc"
|
pascal@23996
|
306 print "returnC:"
|
pascal@23996
|
307 print "@1@422:"
|
pascal@23996
|
308 print " sbb ax,ax"
|
pascal@23996
|
309 print "return:"
|
pascal@23996
|
310 next
|
pascal@23996
|
311 }
|
pascal@23996
|
312 if (/@1@422:/ || /bp$/ || /bp,sp/ || /sp,2/) next
|
pascal@23996
|
313 if (/\[di\],47/) isiso=17
|
pascal@23996
|
314 }
|
pascal@23996
|
315 if (/short @1@142/) { isiso=14; next }
|
pascal@23989
|
316 if (isiso == 14) { # ISO9660.LST
|
pascal@23996
|
317 if (/ax,-1/) next
|
pascal@23996
|
318 if (/jmp @1@422/) sub(/jmp/,"jb")
|
pascal@23989
|
319 }
|
pascal@23988
|
320 if (/p = x->buffer \+ 34/) isiso=13
|
pascal@23988
|
321 if (isiso == 13) { # ISO9660.LST
|
pascal@23988
|
322 if (/di,si/) $0=" xchg ax,bx"
|
pascal@23996
|
323 if (/di,ax/) $0=" lea di,[si+bx+72]"
|
pascal@23996
|
324 if (/di,72/) {
|
pascal@23988
|
325 isiso=0
|
pascal@23988
|
326 next
|
pascal@23988
|
327 }
|
pascal@23988
|
328 }
|
pascal@23870
|
329 if (/register len/) isiso=12
|
pascal@23870
|
330 if (isiso == 12) { # ISO9660.LST
|
pascal@23996
|
331 if (/di\+2/) sub(/al/,"bl")
|
pascal@23996
|
332 if (/cbw/) next
|
pascal@23996
|
333 sub(/dx,ax/,"bh,0")
|
pascal@23870
|
334 if (/bx,dx/) next
|
pascal@23870
|
335 sub(/i,dx/,"i,bx")
|
pascal@23996
|
336 sub(/bx\+di\],0/,"bx+di],bh")
|
pascal@23870
|
337 if (/while/) isiso=0
|
pascal@23870
|
338 }
|
pascal@23863
|
339 if (/curpos >= SECT/) isiso=10
|
pascal@23863
|
340 if (isiso == 10) { # ISO9660.LST
|
pascal@23863
|
341 if (/cmp/) {
|
pascal@23863
|
342 sub(/cmp /,"mov bx,")
|
pascal@23863
|
343 sub(/i.*/,"i]")
|
pascal@23863
|
344 print
|
pascal@23863
|
345 $0=" cmp bh,2048/256"
|
pascal@23863
|
346 }
|
pascal@23863
|
347 if (/mov/) {
|
pascal@23863
|
348 isiso=0
|
pascal@23863
|
349 next
|
pascal@23863
|
350 }
|
pascal@23863
|
351 }
|
pascal@21791
|
352 if (/<< SECTORBITS/) isiso=9
|
pascal@21791
|
353 if (isiso == 9) { # ISO9660.LST
|
pascal@23996
|
354 if (/dx,/) next
|
pascal@21791
|
355 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
356 if (/^ call/) {
|
pascal@21791
|
357 print " extrn N_LXLSH@ES:near"
|
pascal@21791
|
358 sub(/N_LXLSH@/,"N_LXLSH@ES")
|
pascal@21791
|
359 isiso=0
|
pascal@21791
|
360 }
|
pascal@21791
|
361 }
|
pascal@21791
|
362 if (/filesize =/) isiso=8
|
pascal@21791
|
363 if (isiso == 8) { # ISO9660.LST
|
pascal@21791
|
364 if (/ax,/) next
|
pascal@21791
|
365 sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
366 sub(/,ax/,",es")
|
pascal@21791
|
367 if (/filemod/) isiso=0
|
pascal@21791
|
368 }
|
pascal@21754
|
369 if (/entrysize =/) isiso=5
|
pascal@21754
|
370 if (isiso == 5) { # ISO9660.LST
|
pascal@21754
|
371 if (/ax,ax/) next
|
pascal@21754
|
372 sub(/ax/,"cx")
|
pascal@21754
|
373 sub(/je/,"jcxz")
|
pascal@23996
|
374 if (/jcxz/) {
|
pascal@23996
|
375 hold=0
|
pascal@23996
|
376 print s
|
pascal@23996
|
377 sub(/@1@114/,"@1@394")
|
pascal@23996
|
378 print
|
pascal@23996
|
379 print " mov word ptr [si+10],dx"
|
pascal@23996
|
380 $0=" mov word ptr [si+8],ax"
|
pascal@23996
|
381 }
|
pascal@21754
|
382 if (/return/) isiso=0
|
pascal@21754
|
383 }
|
pascal@21754
|
384 if (/do s\+\+; while/) isiso=3
|
pascal@23996
|
385 if (isiso == 3) { # ISO9660.LST
|
pascal@21754
|
386 sub(/cmp byte ptr \[.i\]/,"sub al")
|
pascal@21754
|
387 if (/inc /) { r=$2; print; next }
|
pascal@21754
|
388 if (/al,0/) print " mov al,[" r "]"
|
pascal@23996
|
389 if (/al,byte ptr/) next
|
pascal@21754
|
390 if (/byte ptr \[.*\],0/) next
|
pascal@23996
|
391 }
|
pascal@23996
|
392 if (/ptr .isoreaddir/) isiso=1
|
pascal@23996
|
393 if (isiso == 1) { # ISO9660.LST
|
pascal@23996
|
394 if (/n = name;/) {
|
pascal@23996
|
395 isiso=19
|
pascal@23996
|
396 print " xchg ax,cx"
|
pascal@23996
|
397 print " xchg cl,byte ptr [di] ; c"
|
pascal@21791
|
398 }
|
pascal@23996
|
399 if (/short @2@366/) sub(/jne/,"jnc")
|
pascal@23996
|
400 if (/short @2@282/) sub(/je/,"jc")
|
pascal@23996
|
401 if (/short @2@562/) sub(/@2@562/,"returnNotC")
|
pascal@23996
|
402 if (/short @2@534/) { print; $0=" inc cx" }
|
pascal@23996
|
403 if (/ax,word ptr \[si\+4\]/) $0=" xchg ax,bx ; " $0
|
pascal@23996
|
404 if (/\[di\],al/) next
|
pascal@23996
|
405 if (/@2@310/) next
|
pascal@23996
|
406 if (/ax,-1/) next
|
pascal@23996
|
407 if (/inc di/ || /@@0/) next
|
pascal@23996
|
408 if (/@2@142$/) { print " inc di"; sub(/jmp/,"loop") }
|
pascal@21735
|
409 }
|
pascal@23996
|
410 if (/i\+36\]/) next
|
pascal@23999
|
411 sub(/di,offset DGROUP:_isostate/,"di,si")
|
pascal@21791
|
412 } # file == "iso9660.cpp"
|
pascal@21729
|
413 if (wascall) {
|
pascal@21729
|
414 if (rcall != "") {
|
pascal@21729
|
415 if (/,ax$/) print " mov " rcall ",ax"
|
pascal@21729
|
416 else print " xchg ax," rcall
|
pascal@21729
|
417 wascall=0
|
pascal@21729
|
418 }
|
pascal@21729
|
419 else if (/^ mov .i,ax$/) {
|
pascal@21729
|
420 split($2,y,",")
|
pascal@21729
|
421 rcall=y[1]
|
pascal@21729
|
422 next
|
pascal@21729
|
423 }
|
pascal@21729
|
424 else wascall=0
|
pascal@21729
|
425 }
|
pascal@21729
|
426 if (/^ call /) { wascall=1; rcall="" }
|
pascal@20458
|
427 if (hold == 0) {
|
pascal@20458
|
428 s=$0
|
pascal@20534
|
429 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
|
pascal@20543
|
430 r=$2; kept=0
|
pascal@20458
|
431 hold=1; split($2,regs,","); next
|
pascal@20458
|
432 }
|
pascal@21729
|
433 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
|
pascal@20458
|
434 hold=2; r=$2; next
|
pascal@20458
|
435 }
|
pascal@20458
|
436 if (/^ mov [abcds][ix],/ && ! /,.s/) {
|
pascal@20458
|
437 hold=3; split($2,regs,","); next
|
pascal@20458
|
438 }
|
pascal@20458
|
439 if (/^ movzx eax,ax$/) { hold=4; next }
|
pascal@20544
|
440 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
|
pascal@20543
|
441 split($0,regs,",")
|
pascal@20543
|
442 if (isnum(regs[2]) && regs[2] != 0 &&
|
pascal@20543
|
443 (regs[2] % 256) == 0) {
|
pascal@20549
|
444 hold=5; next
|
pascal@20543
|
445 }
|
pascal@20543
|
446 }
|
pascal@20630
|
447 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
|
pascal@20630
|
448 if (/^ mov cl,4$/) { hold=7; next }
|
pascal@20630
|
449 if (/^ cmp word ptr DGROUP:.*,0$/) {
|
pascal@20630
|
450 hold=8; split($2,regs,","); next
|
pascal@20630
|
451 }
|
pascal@20634
|
452 if (/^ cbw/) { hold=11; kept=0; next }
|
pascal@20634
|
453 if (/^ add [abcds][ix],2$/) {
|
pascal@20634
|
454 split($2,regs,","); hold=12; next
|
pascal@20634
|
455 }
|
pascal@20634
|
456 if (/^ sub [abcds][ix],2$/) {
|
pascal@20634
|
457 split($2,regs,","); hold=13; next
|
pascal@20634
|
458 }
|
pascal@21569
|
459 if (/^ push dx$/) {
|
pascal@21569
|
460 hold=14; next;
|
pascal@21569
|
461 }
|
pascal@20458
|
462 }
|
pascal@20458
|
463 else if (hold == 1) {
|
pascal@20543
|
464 if (/^ ;/) { line[kept++]=$0; next }
|
pascal@20458
|
465 hold=0; split($2,args,","); op=""
|
pascal@20458
|
466 if ($1 == "add") op="+"
|
pascal@20458
|
467 if ($1 == "sub") op="-"
|
pascal@20751
|
468 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
469 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20543
|
470 if (op != "" && regs[1] == args[1]) {
|
pascal@20543
|
471 if (isnum(args[2])) {
|
pascal@20630
|
472 for (i = kept++; i > 0; i--) line[i] = line[i-1]
|
pascal@20630
|
473 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
|
pascal@22288
|
474 sub(/\+-/,"-",line[0])
|
pascal@20630
|
475 hold=10; next
|
pascal@20543
|
476 }
|
pascal@20543
|
477 line[kept++]=$0
|
pascal@20543
|
478 hold=1
|
pascal@20458
|
479 next
|
pascal@20458
|
480 }
|
pascal@20520
|
481 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
|
pascal@20520
|
482 print " xchg " r
|
pascal@20520
|
483 }
|
pascal@20543
|
484 else print s
|
pascal@20543
|
485 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20458
|
486 }
|
pascal@20458
|
487 else if (hold == 2) {
|
pascal@21729
|
488 split($0,args,",")
|
pascal@21729
|
489 if (/^ mov / && r == args[2]) { print s; s=$0; next }
|
pascal@21729
|
490 split($2,args,",")
|
pascal@21729
|
491 hold=0; print s
|
pascal@20458
|
492 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
|
pascal@20458
|
493 }
|
pascal@20458
|
494 else if (hold == 3) {
|
pascal@20458
|
495 hold=0
|
pascal@21576
|
496 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
|
pascal@20542
|
497 if (/^ add [abcds][ix],/) {
|
pascal@20458
|
498 split($2,regs2,",")
|
pascal@20458
|
499 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
|
pascal@20549
|
500 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
|
pascal@20458
|
501 print t; print s; next
|
pascal@20458
|
502 }
|
pascal@20458
|
503 }
|
pascal@20458
|
504 print s
|
pascal@20458
|
505 }
|
pascal@20458
|
506 else if (hold == 4) {
|
pascal@20458
|
507 hold=0
|
pascal@20458
|
508 if (/^ push eax$/) {
|
pascal@20458
|
509 print " push 0"; print " push ax"; next
|
pascal@20458
|
510 } else { print s }
|
pascal@20458
|
511 }
|
pascal@20543
|
512 else if (hold == 5) {
|
pascal@20543
|
513 hold=0
|
pascal@20543
|
514 if ($1 == "jae" || $1 == "jb") {
|
pascal@20544
|
515 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
516 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20543
|
517 s = s "/256"
|
pascal@20543
|
518 }
|
pascal@20543
|
519 print s
|
pascal@20543
|
520 }
|
pascal@20630
|
521 else if (hold == 6) {
|
pascal@20630
|
522 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
|
pascal@20630
|
523 line[kept++]=$0
|
pascal@20630
|
524 next
|
pascal@20630
|
525 }
|
pascal@20630
|
526 p=$0
|
pascal@20630
|
527 if (/^ movzx eax,ax$/) {
|
pascal@20630
|
528 s=" mov eax,cs"; p=""
|
pascal@20630
|
529 }
|
pascal@20630
|
530 print s
|
pascal@20630
|
531 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20630
|
532 if (p != "") print p
|
pascal@20630
|
533 hold=0; next
|
pascal@20630
|
534 }
|
pascal@20630
|
535 else if (hold == 7) {
|
pascal@20458
|
536 hold=0
|
pascal@20520
|
537 if (/^ call near ptr N_LXURSH@$/) {
|
pascal@20520
|
538 print " extrn N_LXURSH@4:near"
|
pascal@20520
|
539 print " call near ptr N_LXURSH@4"
|
pascal@20520
|
540 next
|
pascal@20520
|
541 }
|
pascal@20528
|
542 if (/^ call near ptr N_LXLSH@$/) {
|
pascal@20528
|
543 print " extrn N_LXLSH@4:near"
|
pascal@20528
|
544 print " call near ptr N_LXLSH@4"
|
pascal@20528
|
545 next
|
pascal@20528
|
546 }
|
pascal@20520
|
547 print s
|
pascal@20458
|
548 }
|
pascal@20630
|
549 else if (hold == 8) {
|
pascal@20630
|
550 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
|
pascal@20630
|
551 hold=0
|
pascal@20630
|
552 print s
|
pascal@20630
|
553 }
|
pascal@20630
|
554 else if (hold == 9) {
|
pascal@20630
|
555 hold=0; split($2,args,",")
|
pascal@20630
|
556 if (/^ mov ax,/ && args[2] == regs[1]) {
|
pascal@20630
|
557 print; print " or ax,ax"; print p; next
|
pascal@20630
|
558 }
|
pascal@20630
|
559 print s; print p;
|
pascal@20630
|
560 }
|
pascal@20630
|
561 else if (hold == 10) {
|
pascal@20751
|
562 split($2,args,","); op=""
|
pascal@20751
|
563 if ($1 == "add") op="+"
|
pascal@20751
|
564 if ($1 == "sub") op="-"
|
pascal@20751
|
565 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
566 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20751
|
567 if (op != "" && isnum(args[2])) {
|
pascal@20751
|
568 split(line[0],reg,",")
|
pascal@20751
|
569 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
|
pascal@20751
|
570 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
|
pascal@20751
|
571 next
|
pascal@20751
|
572 }
|
pascal@20751
|
573 }
|
pascal@20630
|
574 hold=0
|
pascal@20630
|
575 if (/^ mov [sd]i,ax$/) {
|
pascal@20630
|
576 split($2,args,",")
|
pascal@20630
|
577 for (i = 0; i < kept; i++) {
|
pascal@20630
|
578 sub(/ax/,args[1],line[i]); print line[i]
|
pascal@20630
|
579 }
|
pascal@20630
|
580 next
|
pascal@20630
|
581 }
|
pascal@20630
|
582 for (i = 0; i < kept; i++) print line[i]
|
pascal@20630
|
583 }
|
pascal@20634
|
584 else if (hold == 11) {
|
pascal@20634
|
585 if (/^ inc ax$/ || /^ dec ax$/) {
|
pascal@20634
|
586 line[kept++]=$0; next
|
pascal@20634
|
587 }
|
pascal@20634
|
588 split($2,args,",")
|
pascal@20634
|
589 if (/^ mov cl,/) {
|
pascal@20634
|
590 split($2,args,",")
|
pascal@20634
|
591 if (args[2] >= 8) {
|
pascal@20634
|
592 line[kept++]=$0; next
|
pascal@20634
|
593 }
|
pascal@20634
|
594 }
|
pascal@20634
|
595 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
|
pascal@20634
|
596 print " cbw "
|
pascal@20634
|
597 }
|
pascal@20634
|
598 for (i = 0; i < kept; i++) print line[i]
|
pascal@20634
|
599 hold=kept=0
|
pascal@20634
|
600 }
|
pascal@20634
|
601 else if (hold == 12) {
|
pascal@20634
|
602 hold=0
|
pascal@20634
|
603 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
604 print " inc " regs[1]
|
pascal@20634
|
605 print " inc " regs[1]
|
pascal@20634
|
606 }
|
pascal@20634
|
607 else print " add " regs[1] ",2"
|
pascal@20634
|
608 }
|
pascal@20634
|
609 else if (hold == 13) {
|
pascal@20634
|
610 hold=0
|
pascal@20634
|
611 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
612 print " dec " regs[1]
|
pascal@20634
|
613 print " dec " regs[1]
|
pascal@20634
|
614 }
|
pascal@20634
|
615 else print " sub " regs[1] ",2"
|
pascal@20634
|
616 }
|
pascal@21569
|
617 else if (hold == 14) {
|
pascal@21569
|
618 if (/^ push ax$/) { hold++; next; }
|
pascal@21569
|
619 print " push dx";
|
pascal@21569
|
620 hold=0;
|
pascal@21569
|
621 }
|
pascal@21569
|
622 else if (hold == 15) {
|
pascal@21569
|
623 if (/^ pop eax$/) { hold++; next; }
|
pascal@21569
|
624 print " push dx";
|
pascal@21569
|
625 print " push ax";
|
pascal@21569
|
626 hold=0;
|
pascal@21569
|
627 }
|
pascal@21569
|
628 else if (hold == 16) {
|
pascal@21569
|
629 hold=0;
|
pascal@21569
|
630 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
|
pascal@21569
|
631 print " push dx";
|
pascal@21569
|
632 print " push ax";
|
pascal@21569
|
633 print " pop eax";
|
pascal@21569
|
634 }
|
pascal@21569
|
635 else if (hold == 17) {
|
pascal@21569
|
636 hold=0;
|
pascal@21569
|
637 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
|
pascal@21569
|
638 }
|
pascal@21576
|
639 if (/^ call near ptr @fileexist\$/ || # return boolean :
|
pascal@21576
|
640 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
|
pascal@21628
|
641 /^ call near ptr @isoreset\$/ ||
|
pascal@21628
|
642 /^ call near ptr @isoopen\$/ ||
|
pascal@21628
|
643 /^ call near ptr @isoreadsector\$/ ||
|
pascal@21628
|
644 /^ call near ptr @strhead\$/ ||
|
pascal@23984
|
645 /^ call near ptr @strcmp\$/ ||
|
pascal@21576
|
646 /^ call near ptr @argstr\$/ ||
|
pascal@21576
|
647 /^ call near ptr @argnum\$/) { print; hold=17; next; }
|
pascal@20458
|
648 s=$0
|
pascal@20458
|
649 # These optimisation may break ZF or CF
|
pascal@20485
|
650 if (/^ sub sp,2$/) { print " push ax"; next }
|
pascal@20485
|
651 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
|
pascal@20485
|
652 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
|
pascal@20458
|
653 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
|
pascal@20458
|
654 sub(/mov/,"and",s); print s; next # slower
|
pascal@20458
|
655 }
|
pascal@20458
|
656 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
|
pascal@20458
|
657 sub(/mov/,"or",s); print s; next # slower
|
pascal@20458
|
658 }
|
pascal@20458
|
659 if (/^ or .*,0$/ || /^ and .*,-1$/) next
|
pascal@20458
|
660 if (/^ or [abcd]x,/) {
|
pascal@20458
|
661 split($2,args,",")
|
pascal@20458
|
662 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
663 print " or " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
664 }
|
pascal@20458
|
665 }
|
pascal@20458
|
666 if (/^ and [abcd]x,/) {
|
pascal@20458
|
667 split($2,args,",")
|
pascal@20459
|
668 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
669 print " and " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
670 }
|
pascal@20458
|
671 }
|
pascal@20458
|
672 if (/^ or e[abcd]x,/) {
|
pascal@20458
|
673 split($2,args,",")
|
pascal@20458
|
674 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
675 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
676 print " or " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
677 }
|
pascal@20458
|
678 }
|
pascal@20458
|
679 if (/^ and e[abcd]x,/) {
|
pascal@20458
|
680 split($2,args,",")
|
pascal@20458
|
681 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
682 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
683 print " and " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
684 }
|
pascal@20458
|
685 }
|
pascal@20458
|
686 if (/^ or e[abcds][ix],/) {
|
pascal@20458
|
687 split($2,args,",")
|
pascal@20458
|
688 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
689 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
|
pascal@20458
|
690 print " or " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
691 }
|
pascal@20458
|
692 }
|
pascal@20458
|
693 if (/^ and e[abcds][ix],/) {
|
pascal@20458
|
694 split($2,args,",")
|
pascal@20458
|
695 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
696 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
|
pascal@20458
|
697 print " and " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
698 }
|
pascal@20458
|
699 }
|
pascal@20543
|
700 if (/^ add word ptr/ || /^ sub word ptr/ ||
|
pascal@20544
|
701 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
|
pascal@20542
|
702 split($0,args,",")
|
pascal@20542
|
703 if (isnum(args[2]) && (args[2] % 256 == 0)) {
|
pascal@20544
|
704 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
705 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20542
|
706 print s "/256"; next
|
pascal@20542
|
707 }
|
pascal@20542
|
708 }
|
pascal@20546
|
709 if (/^ add dword ptr/ || /^ sub dword ptr/) {
|
pascal@20458
|
710 split($0,args,",")
|
pascal@20543
|
711 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
712 if (isnum(args[2])) {
|
pascal@20546
|
713 if (args[2] % 16777216 == 0) {
|
pascal@20546
|
714 sub(/dword/,"byte",s)
|
pascal@20543
|
715 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
|
pascal@20458
|
716 print s "/16777216"; next
|
pascal@20458
|
717 }
|
pascal@20458
|
718 if (args[2] % 65536 == 0) {
|
pascal@20546
|
719 sub(/dword/,"word",s)
|
pascal@20543
|
720 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
|
pascal@20458
|
721 print s "/65536"; next
|
pascal@20458
|
722 }
|
pascal@20458
|
723 }
|
pascal@20458
|
724 }
|
pascal@20458
|
725 if (/^ mov e.x,/) {
|
pascal@20458
|
726 split($2,args,",")
|
pascal@20458
|
727 r=args[1]
|
pascal@20458
|
728 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
729 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
|
pascal@20458
|
730 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
|
pascal@20458
|
731 print " xor " r "," r
|
pascal@20458
|
732 if (args[2] == 0) next
|
pascal@20458
|
733 x=" mov " substr(r,2,1)
|
pascal@20458
|
734 if (args[2] % 256 == 0) {
|
pascal@20458
|
735 print x "h," args[2] "/256"
|
pascal@20458
|
736 }
|
pascal@20458
|
737 else { print x "l," args[2] }
|
pascal@20458
|
738 next
|
pascal@20458
|
739 }
|
pascal@20458
|
740 }
|
pascal@20458
|
741 }
|
pascal@21576
|
742 if (afterjmp) print ";" $0
|
pascal@21576
|
743 else print
|
pascal@21754
|
744 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
|
pascal@23992
|
745 /^ call near ptr @die\$qpxzc/ ||
|
pascal@23992
|
746 /^ call near ptr @exit\$qv/) afterjmp=1
|
pascal@20458
|
747 }
|