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@24067
|
20 if (/ptr @exit\$qv/) {
|
pascal@24067
|
21 if (gotexit) next
|
pascal@24067
|
22 print "call_exit:"
|
pascal@24067
|
23 gotexit=1
|
pascal@24067
|
24 }
|
pascal@24067
|
25 if (/short @1@422/ && gotexit) $0=" ja call_exit"
|
pascal@21984
|
26 if (islinld==1) {
|
pascal@24013
|
27 if (/,word.*/) islinld=0
|
pascal@21984
|
28 print "; " $0
|
pascal@24013
|
29 next
|
pascal@21984
|
30 }
|
pascal@21984
|
31 if (/^_main proc/) islinld=1
|
pascal@21984
|
32 if (/image\|initrd/) islinld=3
|
pascal@24013
|
33 if (islinld==3 && /bx,word ptr/) { print "; " $0; next }
|
pascal@21984
|
34 if (/fileexist\$qpxzc/) islinld=4
|
pascal@21984
|
35 if (islinld==4) {
|
pascal@24022
|
36 if (/DGROUP:_heap_top/) next
|
pascal@23993
|
37 if (/ax,-1/) {
|
pascal@23993
|
38 print " inc ax"
|
pascal@24013
|
39 print " mov ax,word ptr [di]"
|
pascal@23993
|
40 next
|
pascal@23993
|
41 }
|
pascal@24067
|
42 if (/ax,word ptr \[/) next
|
pascal@21984
|
43 }
|
pascal@23992
|
44 if (/buf_cmdline\+1/) {
|
pascal@23992
|
45 islinld=5
|
pascal@23996
|
46 print " mov bx,offset DGROUP:_buf_cmdline+1"
|
pascal@23996
|
47 sub(/offset DGROUP:_buf_cmdline\+1/,"bx")
|
pascal@23992
|
48 }
|
pascal@23804
|
49 if (islinld==5) {
|
pascal@23996
|
50 if (/bx,offset DGROUP:_buf_cmdline/) $0=" dec bx"
|
pascal@23993
|
51 if (/ax,word ptr/) next
|
pascal@23992
|
52 if (/call/) islinld=0
|
pascal@23804
|
53 }
|
pascal@23996
|
54 if (/bx,word ptr DGROUP:_cmdstr\+6/) next
|
pascal@23996
|
55 if (/_cmdstr\+6,0/) {
|
pascal@24013
|
56 print " mov bx,word ptr [si+6]"
|
pascal@23996
|
57 $0=" or bx,bx"
|
pascal@23996
|
58 }
|
pascal@24022
|
59 if (/heap_top \+1;/) islinld=6
|
pascal@24022
|
60 if (islinld==6) {
|
pascal@24022
|
61 sub(/ax/,"bx")
|
pascal@24022
|
62 if (/strcatb/) {
|
pascal@24022
|
63 print " dec bx"
|
pascal@24022
|
64 islinld=4
|
pascal@24022
|
65 }
|
pascal@24022
|
66 }
|
pascal@21984
|
67 } # file == "linld.cpp"
|
pascal@21791
|
68 if (file == "himem.cpp") {
|
pascal@24019
|
69 if (/sp,bp/ || /pop bp/ || /enter/ || /leave/) next
|
pascal@21984
|
70 if (/void load_image/) ishimem=1
|
pascal@21791
|
71 if (ishimem == 1 && is386 == 0) {
|
pascal@21791
|
72 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
|
pascal@21791
|
73 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
|
pascal@24013
|
74 if (/si\+12\],ax/ || /si\+16\],ax/ || /di\+2\],ax/ || /DGROUP:_himem_buf\+2,ax/) sub(/,ax/,",es")
|
pascal@23996
|
75 if (/dx,dword ptr \[si\+14\]/ || /DGROUP:_himem_buf,dx/) sub(/dx/,"ax")
|
pascal@21984
|
76 }
|
pascal@21984
|
77 if (ishimem == 1) {
|
pascal@21984
|
78 if (/do \{/) ishimem=2
|
pascal@24034
|
79 if (/bx,si/ || /di,ax/ || /push bp/ || /bp,sp/ || /push di/ || /push si/) next
|
pascal@23996
|
80 if (/sp,2/ || /bp\+4/) next
|
pascal@21984
|
81 }
|
pascal@21984
|
82 if (ishimem == 2) {
|
pascal@21984
|
83 if (/movzx/) print " cwde"
|
pascal@23996
|
84 if (/bp-2/ || /di,ax/ || /bx,di/ || /bx,si/) 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@23996
|
92 if (/i\+12/) ishimem=20
|
pascal@23996
|
93 }
|
pascal@23996
|
94 if (ishimem == 20) {
|
pascal@24013
|
95 if (/loadfail/) next
|
pascal@23996
|
96 if (/je/) {
|
pascal@23996
|
97 print " extrn jmploadfailure"
|
pascal@23996
|
98 $0=" jne short jmploadfailure"
|
pascal@23996
|
99 }
|
pascal@23989
|
100 if (/endp/) ishimem=0
|
pascal@21791
|
101 }
|
pascal@23992
|
102 if (/@memcpy_image\$qp11image_himem/) next
|
pascal@24013
|
103 if (/far last_ditch/) ishimem=3
|
pascal@23992
|
104 if (ishimem == 3) {
|
pascal@23996
|
105 sub(/DGROUP:_imgs\+4,/,"[si+4],")
|
pascal@24013
|
106 if (/bx,di/ || /di,ax/) next
|
pascal@23992
|
107 }
|
pascal@21791
|
108 } # file == "himem.cpp"
|
pascal@21791
|
109 if (file == "load.cpp") {
|
pascal@23996
|
110 if (isload != 3 && isload != 6) { # LOAD.LST
|
pascal@23996
|
111 if (/,si/ || /si,/ || /\[si/) sub(/si/,"di")
|
pascal@23996
|
112 else if (/,di/ || /di,/ || /\[di/) sub(/di/,"si")
|
pascal@23996
|
113 }
|
pascal@23996
|
114 if (/moverm\(/) isload=16
|
pascal@23996
|
115 if (isload != 16 && /bx,si/) next
|
pascal@23996
|
116 if (/@moverm/) isload=0
|
pascal@23992
|
117 if (/readrm\(m, 0x200/) isload=15
|
pascal@23992
|
118 if (isload == 15) { # LOAD.LST
|
pascal@23996
|
119 if (/bx,si/) next
|
pascal@23992
|
120 if (/call/) isload=0
|
pascal@23992
|
121 }
|
pascal@23989
|
122 if (/load_image\(/) {
|
pascal@23989
|
123 if (isload == 3) isload=13
|
pascal@23989
|
124 else isload=14
|
pascal@23989
|
125 }
|
pascal@23989
|
126 if (isload == 14) { # LOAD.LST
|
pascal@23996
|
127 if (/call/) $0=" jmp short load_imagez"
|
pascal@23989
|
128 if (/ret/) isload=0
|
pascal@23989
|
129 if (/pop/ || /ret/ || /push/) next
|
pascal@23989
|
130 }
|
pascal@23989
|
131 if (isload == 13) { # LOAD.LST
|
pascal@23991
|
132 if (/pop/) isload=3
|
pascal@23991
|
133 if (/push/ || /call/ || /pop/) next
|
pascal@23989
|
134 }
|
pascal@22152
|
135 if (/i\+21\],513$/) isload=11
|
pascal@21984
|
136 if (isload == 12) { # LOAD.LST
|
pascal@21984
|
137 if (/cmp/) next
|
pascal@21984
|
138 if (/jb/) isload=0
|
pascal@21984
|
139 sub(/jb/,"jcxz")
|
pascal@21984
|
140 }
|
pascal@21984
|
141 if (isload == 11) { # LOAD.LST
|
pascal@21984
|
142 if (/cmp/) {
|
pascal@21984
|
143 print " mov cx,513"
|
pascal@22152
|
144 sub(/cmp /,"sub cx,")
|
pascal@22152
|
145 sub(/,513/,"")
|
pascal@21984
|
146 }
|
pascal@21984
|
147 if (/jb/) isload=12
|
pascal@21984
|
148 sub(/jb/,"ja")
|
pascal@21984
|
149 }
|
pascal@22170
|
150 sub(/_imgs\+65534/,"_imgs-2")
|
pascal@21791
|
151 if (/setup_sects == 0/) isload=9
|
pascal@21791
|
152 if (isload == 9) { # LOAD.LST
|
pascal@23999
|
153 sub(/,0/,",al ; worst case 2k boundary (iso)")
|
pascal@21791
|
154 if (/jne/) isload=0
|
pascal@21791
|
155 }
|
pascal@21757
|
156 if (/cmd_line_ptr =/ && is386 == 0) isload=7
|
pascal@21757
|
157 if (isload == 7) { # LOAD.LST
|
pascal@22181
|
158 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
|
pascal@22170
|
159 if (/enable A20 if needed/) { print nextinst; isload=0 }
|
pascal@22152
|
160 if (/i-463/) $0=" mov bx,-463"
|
pascal@22170
|
161 if (/i-465/) {
|
pascal@22170
|
162 sub(/465/,"2"); sub(/\[/,"[bx+")
|
pascal@22170
|
163 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
|
pascal@22170
|
164 }
|
pascal@21757
|
165 if (/,dx/) {
|
pascal@21757
|
166 print " mov cl,12"
|
pascal@21757
|
167 print " shr ax,cl"
|
pascal@22181
|
168 print " mov bx,55"
|
pascal@21757
|
169 sub(/dx/,"ax")
|
pascal@21757
|
170 }
|
pascal@21757
|
171 }
|
pascal@23992
|
172 if (/pm_low == 0/) {
|
pascal@23991
|
173 print " push di"
|
pascal@23996
|
174 print " push si"
|
pascal@23991
|
175 isload=6
|
pascal@23991
|
176 }
|
pascal@21757
|
177 if (isload == 6) { # LOAD.LST
|
pascal@23991
|
178 if (/si\+2/) {
|
pascal@23991
|
179 print " cmpsw"
|
pascal@23991
|
180 next
|
pascal@23991
|
181 }
|
pascal@23989
|
182 if (/les/) sub(/bx,/,"di,")
|
pascal@23991
|
183 if (/bx\+4/ || /es:/ || /call/ || /pop/ || /ret/) next
|
pascal@23989
|
184 if (/si\+6/) {
|
pascal@23989
|
185 print " movsw"
|
pascal@23989
|
186 print " movsw"
|
pascal@23989
|
187 print " movsw"
|
pascal@23989
|
188 print " movsw"
|
pascal@23996
|
189 print " pop si"
|
pascal@23991
|
190 print "load_imagez:"
|
pascal@21757
|
191 next
|
pascal@21757
|
192 }
|
pascal@21757
|
193 }
|
pascal@21757
|
194 if (isload == 5) { # LOAD.LST
|
pascal@21757
|
195 sub(/ax,/,"bx,")
|
pascal@23996
|
196 if (/@puts\$qpxzc/) isload=0
|
pascal@21757
|
197 if (/mov bx,ax/) next
|
pascal@23996
|
198 sub(/,word ptr \[di\+29\]/,",cx")
|
pascal@21757
|
199 }
|
pascal@23996
|
200 if (/_cmdnum\+14/ && is386 == 0) isload=4
|
pascal@22180
|
201 if (isload == 4) { # LOAD.LST
|
pascal@23996
|
202 if (/_cmdnum\+14/) next
|
pascal@23996
|
203 if (/_cmdnum\+12$/) {
|
pascal@23996
|
204 $0=" les dx,dword ptr [bx+12]"
|
pascal@21757
|
205 }
|
pascal@21791
|
206 sub(/,ax/,",es")
|
pascal@22181
|
207 if (/add ax,word ptr/) $0=" add ax,cx"
|
pascal@22181
|
208 if (/i\+29\],0/) {
|
pascal@22181
|
209 sub(/,0$/,"")
|
pascal@22181
|
210 sub(/cmp /,"mov cx,")
|
pascal@22181
|
211 }
|
pascal@22181
|
212 sub(/je/,"jcxz")
|
pascal@23996
|
213 if (/@strcpy/) isload=0
|
pascal@23992
|
214 if (/\+0x200/) isload=5
|
pascal@21757
|
215 }
|
pascal@23996
|
216 if (/void load_initrd\(\)/) { isload=3; isload2=0 }
|
pascal@21754
|
217 if (isload == 3) { # LOAD.LST
|
pascal@24015
|
218 if (/bx,offset DGROUP:_imgs\+28/ || /push si/) next
|
pascal@24015
|
219 if (/si,offset DGROUP:_imgs\+28/) print " push si"
|
pascal@23996
|
220 if (/cmdstr\+4,0/) {
|
pascal@23996
|
221 isload2++
|
pascal@23996
|
222 print " mov ax,word ptr DGROUP:_cmdstr+4"
|
pascal@23996
|
223 $0=" or ax,ax"
|
pascal@23996
|
224 }
|
pascal@23996
|
225 if (isload2 && /DGROUP:_cmdstr\+4/) $0=";" $0
|
pascal@23994
|
226 if (/je short @2@.*/) sub(/@2@.*/,"load_initrd_ret")
|
pascal@23992
|
227 if (/mov ax,word ptr \[si\]/) $0=" lodsw"
|
pascal@23991
|
228 if( /jmp/) {
|
pascal@23991
|
229 print "load_initrd_ret:"
|
pascal@23991
|
230 print " ret"
|
pascal@23991
|
231 next
|
pascal@23991
|
232 }
|
pascal@23996
|
233 if (/@loadfailure/) {
|
pascal@23996
|
234 print " global jmploadfailure:near"
|
pascal@23996
|
235 print "jmploadfailure:"
|
pascal@23996
|
236 }
|
pascal@21754
|
237 sub(/\[di/,"[bx")
|
pascal@23992
|
238 sub(/di,/,"bx,")
|
pascal@21754
|
239 }
|
pascal@23996
|
240 if (/mode = vid_mode/) { isload=2; print " mov bx,offset _cmdnum" }
|
pascal@21750
|
241 if (isload == 2) { # LOAD.LST
|
pascal@23996
|
242 if (/DGROUP:_cmdnum/) { sub(/DGROUP:_cmdnum/,"[bx"); $0=$0 "]"}
|
pascal@21750
|
243 sub(/,0/,""); sub(/cmp /,"mov cx,")
|
pascal@21750
|
244 sub(/je/,"jcxz")
|
pascal@21750
|
245 if (/ax,word/) next
|
pascal@21750
|
246 sub(/,ax/,",cx")
|
pascal@23992
|
247 if (/starting linux 1\.3\.73/) isload=0
|
pascal@21750
|
248 }
|
pascal@23996
|
249 if (/_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
|
pascal@21750
|
250 if (isload == 1) { # LOAD.LST
|
pascal@21791
|
251 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
|
pascal@21729
|
252 if (/mov al,byte ptr/ && is386) {
|
pascal@22152
|
253 sub(/mov al/,"movzx eax")
|
pascal@21729
|
254 }
|
pascal@21791
|
255 if (is386 == 0) {
|
pascal@23999
|
256 if (/m->size -= _rm_size/) print " cwd ; do not trust rewind result (iso case)"
|
pascal@21791
|
257 sub(/,0$/,",dx")
|
pascal@21791
|
258 }
|
pascal@21729
|
259 if (/ax,word ptr/) next
|
pascal@21729
|
260 if (/^ call/) isload=0
|
pascal@21729
|
261 }
|
pascal@21791
|
262 } # file == "load.cpp"
|
pascal@21791
|
263 if (file == "iso9660.cpp") {
|
pascal@24034
|
264 if (swapsidi == 1) {
|
pascal@24034
|
265 if (/\[si/) sub(/\[si/,"[di")
|
pascal@24034
|
266 else (/\[di/) sub(/\[di/,"[si")
|
pascal@24034
|
267 if (/\+si/) sub(/\+si/,"+di")
|
pascal@24034
|
268 else (/\+di/) sub(/\+di/,"+si")
|
pascal@24034
|
269 if (/,si/) sub(/,si/,",di")
|
pascal@24034
|
270 else if (/,di/) sub(/,di/,",si")
|
pascal@24034
|
271 if (/si,/) sub(/si,/,"di,")
|
pascal@24034
|
272 else if (/di,/) sub(/di,/,"si,")
|
pascal@24034
|
273 }
|
pascal@24022
|
274 if (/di,offset DGROUP:_buf2k/) { si="si"; di="di" }
|
pascal@24022
|
275 if (/si,offset DGROUP:_buf2k/) { si="di"; di="si" }
|
pascal@24022
|
276 if (/leave/ || /enter/ || /bp/ || /sub sp,/) next
|
pascal@24022
|
277 if (/ptr \[.i\+8\],dx/) next
|
pascal@24022
|
278 if (/ptr \[.i\+6\],ax/) next
|
pascal@24022
|
279 if (/ptr \[.i\+6\],eax/) next
|
pascal@24020
|
280 if (/x,word ptr \[.i\+32\]/) next
|
pascal@24019
|
281 if (/add word ptr \[.i\],ax/) sub(/ax/,"cx")
|
pascal@24034
|
282 if (/ax,word ptr \[si\+18\]/) sub(/mov ax,/,"les ax,d")
|
pascal@24034
|
283 if (/ax,word ptr \[si\+20\]/) next
|
pascal@24034
|
284 if (/word ptr \[si\+25\],ax/) sub(/ax/,"es")
|
pascal@23996
|
285 sub(/di,word ptr DGROUP:_isostate\+2/,"di,word ptr [si+2]")
|
pascal@24034
|
286 if (/-257/) isiso=22
|
pascal@24034
|
287 if (isiso == 22) {
|
pascal@24034
|
288 sub(/-257/,"-257 ; clear C")
|
pascal@24034
|
289 if (/je/) {
|
pascal@24034
|
290 print " cbw"
|
pascal@24034
|
291 print " xchg ax,bx"
|
pascal@24034
|
292 print " xchg ax,dx ; .. or ."
|
pascal@24034
|
293 $0=" je returnC"
|
pascal@24034
|
294 }
|
pascal@24034
|
295 }
|
pascal@24022
|
296 if (/p = buf2k \+ 32 \+ x->curpos/) isiso=21
|
pascal@24020
|
297 if (isiso == 21) { # ISO9660.LST
|
pascal@24023
|
298 if (/ax,/) next
|
pascal@24034
|
299 if (/.i,ax/) sub(/mov/,"xchg")
|
pascal@24020
|
300 if (/# else/) isiso=0
|
pascal@24020
|
301 }
|
pascal@24034
|
302 if (/cx,.i/) {
|
pascal@24034
|
303 if (isiso == 0) {
|
pascal@24034
|
304 print " ifndef CLEAN_ISO9660"
|
pascal@24034
|
305 print " inc " di
|
pascal@24034
|
306 print " mov cx," di
|
pascal@24034
|
307 }
|
pascal@24022
|
308 isiso=20
|
pascal@24022
|
309 }
|
pascal@24019
|
310 if (isiso == 20) { # ISO9660.LST
|
pascal@24020
|
311 if (/bx,dx/) {
|
pascal@24020
|
312 isiso=12
|
pascal@24020
|
313 next
|
pascal@24020
|
314 }
|
pascal@24034
|
315 if (/add .i,ax/ || /cbw/) next
|
pascal@24034
|
316 if (/cmp/) sub(/\[/,"[bx+")
|
pascal@24022
|
317 if (/inc cx/) next
|
pascal@24034
|
318 if (/sub/) sub(/.i/,"bx")
|
pascal@24034
|
319 sub(/inc .i/,"inc bx")
|
pascal@24034
|
320 if (/al,byte ptr/) {
|
pascal@24034
|
321 next
|
pascal@24034
|
322 }
|
pascal@24034
|
323 sub(/i-1\],12603/,"i],12603")
|
pascal@24034
|
324 if (/bx\+.i\],46/) {
|
pascal@24034
|
325 print " inc " di
|
pascal@24034
|
326 print " mov cx," di
|
pascal@24034
|
327 }
|
pascal@24022
|
328 if (/i],0/) {
|
pascal@24034
|
329 print " ifndef CLEAN_ISO9660"
|
pascal@24034
|
330 print " inc " di
|
pascal@24034
|
331 print " mov cx," di
|
pascal@24034
|
332 print " endif"
|
pascal@24034
|
333 print "seteos:"
|
pascal@24034
|
334 sub(/,0/,",bh ; clear C")
|
pascal@24034
|
335 sub(/mov byte ptr \[/,"and byte ptr [bx+")
|
pascal@24022
|
336 }
|
pascal@24034
|
337 if (/cx,.i/) next
|
pascal@24034
|
338 if (/\}/) {
|
pascal@24034
|
339 print " xchg ax,cx"
|
pascal@24034
|
340 }
|
pascal@24034
|
341 if (/cx,5/) $0=" lea dx,[" di "+5]"
|
pascal@24019
|
342 if (/filename = s;/) {
|
pascal@24019
|
343 isiso=0
|
pascal@24019
|
344 }
|
pascal@24019
|
345 }
|
pascal@23996
|
346 if (isiso == 19) { # ISO9660.LST
|
pascal@24022
|
347 if (/short @2@310/) $0=" jc restoreC"
|
pascal@24022
|
348 if (/si\+32/ || /ax,dx/ || /ax,di/ || /cmp ax,-1/ || /sub ax,/) next
|
pascal@24034
|
349 if (/ax,word ptr \[si\+28\]/) next
|
pascal@24020
|
350 if (/bx,offset/) sub(/bx/,"ax")
|
pascal@24034
|
351 sub(/dx,/,"bx,")
|
pascal@23996
|
352 if (/short @2@282/) sub(/je/,"jnc")
|
pascal@24034
|
353 if (/\[si\+30\],0/) $0=" ;or cl,cl"
|
pascal@24034
|
354 if (/short @2@478/) sub(/je/,"jcxz")
|
pascal@23996
|
355 if (/@strcmp\$qpxzct1/) {
|
pascal@23996
|
356 print
|
pascal@23996
|
357 print "restoreC:"
|
pascal@24034
|
358 $0=" mov byte ptr [di],dl ; c"
|
pascal@23996
|
359 isiso=1
|
pascal@23996
|
360 }
|
pascal@23996
|
361 }
|
pascal@23996
|
362 if (isiso == 18) { # ISO9660.LST
|
pascal@24022
|
363 if (/endif/) isiso=1
|
pascal@23996
|
364 }
|
pascal@23996
|
365 if (isiso == 17) { # ISO9660.LST
|
pascal@24034
|
366 if (/si\+18/) {
|
pascal@24022
|
367 print "next:"
|
pascal@24034
|
368 print " mov word ptr [si+20],bx"
|
pascal@23996
|
369 print
|
pascal@24022
|
370 isiso=0
|
pascal@24022
|
371 }
|
pascal@24022
|
372 if (/_buf2k\+167/) {
|
pascal@24022
|
373 print
|
pascal@24022
|
374 $0=""
|
pascal@23996
|
375 }
|
pascal@23996
|
376 else sub(/ax/,"bx")
|
pascal@23996
|
377 if (/,bx/) next
|
pascal@23996
|
378 if (/isoreadrootsector/) {
|
pascal@23996
|
379 print
|
pascal@24022
|
380 print " mov ax,word ptr [_buf2k+1]"
|
pascal@24022
|
381 print " xor ax,17475 ; clear C, CD"
|
pascal@24022
|
382 print "jne_returnNotC:"
|
pascal@24022
|
383 print " cmc"
|
pascal@24022
|
384 $0=" jne returnC"
|
pascal@23996
|
385 }
|
pascal@23996
|
386 }
|
pascal@24022
|
387 if (/if \(c\)/) isiso=16
|
pascal@23996
|
388 if (isiso == 16) { # ISO9660.LST
|
pascal@24022
|
389 if (/cmp/) {
|
pascal@24022
|
390 print " mov bx,word ptr [si+7]"
|
pascal@24022
|
391 print " mov ax,word ptr [si+11]"
|
pascal@24034
|
392 print " dec dx"
|
pascal@24022
|
393 print " jns next"
|
pascal@23996
|
394 }
|
pascal@24022
|
395 if (/isolseek/) isiso=1
|
pascal@24022
|
396 else if (! /;/) next
|
pascal@23996
|
397 }
|
pascal@23996
|
398 if (/found:/) isiso=15
|
pascal@23996
|
399 if (isiso != 15 && /si,offset DGROUP:_isostate/) $0=";" $0
|
pascal@23996
|
400 if (isiso == 15) { # ISO9660.LST
|
pascal@23996
|
401 if (/xor/) {
|
pascal@24020
|
402 print "returnC:"
|
pascal@24034
|
403 print " sbb dx,dx"
|
pascal@23996
|
404 print "return:"
|
pascal@23996
|
405 next
|
pascal@23996
|
406 }
|
pascal@24034
|
407 if (/i\+28\],cx/) {
|
pascal@24034
|
408 print " ifndef BASIC_ISO9660"
|
pascal@24034
|
409 print " xchg ax,dx"
|
pascal@24034
|
410 print " endif"
|
pascal@24034
|
411 next
|
pascal@24034
|
412 }
|
pascal@24022
|
413 if (/@1@422:/) next
|
pascal@23996
|
414 if (/\[di\],47/) isiso=17
|
pascal@23996
|
415 }
|
pascal@23989
|
416 if (isiso == 14) { # ISO9660.LST
|
pascal@24022
|
417 if (/ax,/ || /jge/) next
|
pascal@24022
|
418 sub(/mov/,"sub")
|
pascal@24022
|
419 sub(/,ax/,",8")
|
pascal@24020
|
420 if (/jmp/) {
|
pascal@24022
|
421 print " ;JUMPS"
|
pascal@24022
|
422 print " jb returnCXZC"
|
pascal@24022
|
423 $0=" ;NOJUMPS"
|
pascal@24022
|
424 isiso=0
|
pascal@24020
|
425 }
|
pascal@23989
|
426 }
|
pascal@24022
|
427 if (/p = buf2k \+ 34/) isiso=13
|
pascal@23988
|
428 if (isiso == 13) { # ISO9660.LST
|
pascal@24034
|
429 #if (/cbw/) $0=" ;cbw"
|
pascal@24019
|
430 if (/i,.i/) $0=" xchg ax,bx"
|
pascal@24022
|
431 if (/i,ax/) $0=" xchg ax," di
|
pascal@24034
|
432 if (/i,70/ || /ptr \[.i\+32\]/) next
|
pascal@24022
|
433 if (/register len/) {
|
pascal@24022
|
434 isiso=12
|
pascal@24022
|
435 }
|
pascal@23988
|
436 }
|
pascal@23870
|
437 if (isiso == 12) { # ISO9660.LST
|
pascal@24019
|
438 if (/.i\+2/) sub(/al/,"bl")
|
pascal@23996
|
439 if (/cbw/) next
|
pascal@24034
|
440 if (/dx,ax/) next
|
pascal@23870
|
441 if (/bx,dx/) next
|
pascal@23870
|
442 sub(/i,dx/,"i,bx")
|
pascal@24020
|
443 sub(/cx,/,"dx,")
|
pascal@24034
|
444 if (/bx\+.i\],0/) {
|
pascal@24034
|
445 sub(/,0/,",bh")
|
pascal@24034
|
446 }
|
pascal@24034
|
447 if (/jmp/) {
|
pascal@24034
|
448 print
|
pascal@24034
|
449 $0=" endif"
|
pascal@24034
|
450 }
|
pascal@24034
|
451 if (/jne/) {
|
pascal@24034
|
452 print " ifdef BASIC_ISO9660"
|
pascal@24034
|
453 print " lea cx,[" di "+5]"
|
pascal@24034
|
454 print " je seteos"
|
pascal@24034
|
455 print " else"
|
pascal@24034
|
456 }
|
pascal@24020
|
457 if (/while/) isiso=120
|
pascal@24020
|
458 }
|
pascal@24020
|
459 if (isiso == 120) { # ISO9660.LST
|
pascal@24034
|
460 sub(/ax/,"cx")
|
pascal@24034
|
461 if (/cmp cx,/) $0=" cmp " di ",cx"
|
pascal@24022
|
462 sub(/jae/,"jb")
|
pascal@24020
|
463 if (/endif/) isiso=0
|
pascal@23870
|
464 }
|
pascal@23863
|
465 if (/curpos >= SECT/) isiso=10
|
pascal@23863
|
466 if (isiso == 10) { # ISO9660.LST
|
pascal@24022
|
467 if (/,2048/) {
|
pascal@24022
|
468 print " xor cx,cx"
|
pascal@23863
|
469 sub(/cmp /,"mov bx,")
|
pascal@23863
|
470 sub(/i.*/,"i]")
|
pascal@23863
|
471 print
|
pascal@23863
|
472 $0=" cmp bh,2048/256"
|
pascal@23863
|
473 }
|
pascal@24022
|
474 if (/DGROUP:_buf2k\[bx\],0/) $0=" cmp word ptr [bx+" di "],cx"
|
pascal@24022
|
475 sub(/,0/,",cx")
|
pascal@24022
|
476 if (/\[.i\],cx/) isiso=14
|
pascal@24022
|
477 else if (/mov/) next
|
pascal@23863
|
478 }
|
pascal@21791
|
479 if (/<< SECTORBITS/) isiso=9
|
pascal@21791
|
480 if (isiso == 9) { # ISO9660.LST
|
pascal@24022
|
481 if (/dx,/) next
|
pascal@21791
|
482 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
483 if (/^ call/) {
|
pascal@21791
|
484 print " extrn N_LXLSH@ES:near"
|
pascal@21791
|
485 sub(/N_LXLSH@/,"N_LXLSH@ES")
|
pascal@21791
|
486 isiso=0
|
pascal@21791
|
487 }
|
pascal@21791
|
488 }
|
pascal@21791
|
489 if (/filesize =/) isiso=8
|
pascal@21791
|
490 if (isiso == 8) { # ISO9660.LST
|
pascal@24034
|
491 if (/ax,/ || /cbw/) next
|
pascal@21791
|
492 sub(/mov dx,/,"les dx,d")
|
pascal@24020
|
493 sub(/\],ax/,"],es")
|
pascal@24020
|
494 sub(/cx,/,"dx,")
|
pascal@24034
|
495 if (/DGROUP:s@\+/) {
|
pascal@24034
|
496 print
|
pascal@24034
|
497 next
|
pascal@24034
|
498 }
|
pascal@24034
|
499 if (/i\+33]/) {
|
pascal@24034
|
500 print " ifdef ROCKRIDGE"
|
pascal@24034
|
501 print " ifdef BASIC_ISO9660"
|
pascal@24034
|
502 print " add " di ",32"
|
pascal@24034
|
503 print " mov ax,[" di "]"
|
pascal@24034
|
504 print " else"
|
pascal@24034
|
505 print " mov ax,[" di "+32]"
|
pascal@24034
|
506 print " endif"
|
pascal@24034
|
507 print " mov bl,ah"
|
pascal@24034
|
508 print " mov bh,0"
|
pascal@24034
|
509 print " else"
|
pascal@24034
|
510 print " mov al,[" di "+33]"
|
pascal@24034
|
511 print " cbw"
|
pascal@24034
|
512 $0=" endif"
|
pascal@24034
|
513 }
|
pascal@24034
|
514 if (/sub/) {
|
pascal@24034
|
515 print " ifdef ROCKRIDGE"
|
pascal@24034
|
516 print " sub dx,bx"
|
pascal@24034
|
517 print " else"
|
pascal@24034
|
518 print
|
pascal@24034
|
519 $0=" endif"
|
pascal@24034
|
520 isiso=0
|
pascal@24034
|
521 }
|
pascal@21791
|
522 }
|
pascal@21754
|
523 if (/entrysize =/) isiso=5
|
pascal@21754
|
524 if (isiso == 5) { # ISO9660.LST
|
pascal@21754
|
525 if (/ax,ax/) next
|
pascal@24022
|
526 if (/word ptr \[.i\+3.\],ax/) next
|
pascal@21754
|
527 sub(/ax/,"cx")
|
pascal@21754
|
528 sub(/je/,"jcxz")
|
pascal@23996
|
529 if (/jcxz/) {
|
pascal@23996
|
530 hold=0
|
pascal@23996
|
531 print s
|
pascal@24022
|
532 print " stc"
|
pascal@24022
|
533 print "returnCXZC:"
|
pascal@24022
|
534 sub(/@1@1../,"returnC")
|
pascal@23996
|
535 print
|
pascal@24022
|
536 if (is386) $0=" mov dword ptr [" si "+6],eax"
|
pascal@24019
|
537 else {
|
pascal@24022
|
538 print " mov word ptr [" si "+8],dx"
|
pascal@24022
|
539 $0=" mov word ptr [" si "+6],ax"
|
pascal@24019
|
540 }
|
pascal@23996
|
541 }
|
pascal@21754
|
542 if (/return/) isiso=0
|
pascal@21754
|
543 }
|
pascal@21754
|
544 if (/do s\+\+; while/) isiso=3
|
pascal@23996
|
545 if (isiso == 3) { # ISO9660.LST
|
pascal@24022
|
546 if (/do \{/) print "while1:"
|
pascal@21754
|
547 sub(/cmp byte ptr \[.i\]/,"sub al")
|
pascal@21754
|
548 if (/inc /) { r=$2; print; next }
|
pascal@21754
|
549 if (/al,0/) print " mov al,[" r "]"
|
pascal@24034
|
550 if (/word ptr \[si\],-1/) $0=" not word ptr [si] ; zero'd in BSS"
|
pascal@24034
|
551 sub(/al,32/,"ax,32")
|
pascal@24034
|
552 if (/byte ptr \[si\+30\],al/) $0=" xchg ax,cx"
|
pascal@24020
|
553 if (/al,byte ptr \[/) next
|
pascal@21754
|
554 if (/byte ptr \[.*\],0/) next
|
pascal@24022
|
555 if (/byte ptr \[si\+31\],al/) next
|
pascal@23996
|
556 }
|
pascal@24034
|
557 if (/ptr .isoreaddir/) {
|
pascal@24034
|
558 print " ifdef ISOHOOK"
|
pascal@24034
|
559 print " push cx"
|
pascal@24034
|
560 print
|
pascal@24034
|
561 print " pop cx"
|
pascal@24034
|
562 print " else"
|
pascal@24034
|
563 print
|
pascal@24034
|
564 $0=" endif"
|
pascal@24034
|
565 isiso=1
|
pascal@24034
|
566 }
|
pascal@23996
|
567 if (isiso == 1) { # ISO9660.LST
|
pascal@24034
|
568 if (/xor/) {
|
pascal@24034
|
569 $0=" xor cl,32"
|
pascal@24034
|
570 isiso=18
|
pascal@24034
|
571 }
|
pascal@23996
|
572 if (/n = name;/) {
|
pascal@23996
|
573 isiso=19
|
pascal@24034
|
574 print " xchg dl,byte ptr [di] ; c"
|
pascal@21791
|
575 }
|
pascal@24022
|
576 sub(/jne/,"jnc")
|
pascal@24022
|
577 if (/short @2@450/) $0=" jc returnC"
|
pascal@24022
|
578 if (/je/) $0=" jc while1"
|
pascal@24022
|
579 if (/short @2@562/) sub(/@2@562/,"jne_returnNotC")
|
pascal@24022
|
580 if (/jmp/) $0=" jmp jne_returnNotC"
|
pascal@23996
|
581 if (/ax,word ptr \[si\+4\]/) $0=" xchg ax,bx ; " $0
|
pascal@24022
|
582 if (/\[di\],al/ || /al,byte ptr/) next
|
pascal@24022
|
583 if (/@2@338/) next
|
pascal@23996
|
584 if (/ax,-1/) next
|
pascal@23996
|
585 if (/inc di/ || /@@0/) next
|
pascal@24022
|
586 if (/@2@142$/) print " inc di"
|
pascal@21735
|
587 }
|
pascal@24022
|
588 if (/i\+34\]/) next
|
pascal@24034
|
589 if (/di,offset DGROUP:_isostate/) {
|
pascal@24034
|
590 sub(/mov/,";mov")
|
pascal@24034
|
591 sub(/di,/,"si,")
|
pascal@24034
|
592 swapsidi=1
|
pascal@24034
|
593 }
|
pascal@24034
|
594 if (/^ ret/) swapsidi=0
|
pascal@21791
|
595 } # file == "iso9660.cpp"
|
pascal@21729
|
596 if (wascall) {
|
pascal@21729
|
597 if (rcall != "") {
|
pascal@21729
|
598 if (/,ax$/) print " mov " rcall ",ax"
|
pascal@21729
|
599 else print " xchg ax," rcall
|
pascal@21729
|
600 wascall=0
|
pascal@21729
|
601 }
|
pascal@21729
|
602 else if (/^ mov .i,ax$/) {
|
pascal@21729
|
603 split($2,y,",")
|
pascal@21729
|
604 rcall=y[1]
|
pascal@21729
|
605 next
|
pascal@21729
|
606 }
|
pascal@21729
|
607 else wascall=0
|
pascal@21729
|
608 }
|
pascal@21729
|
609 if (/^ call /) { wascall=1; rcall="" }
|
pascal@20458
|
610 if (hold == 0) {
|
pascal@20458
|
611 s=$0
|
pascal@20534
|
612 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
|
pascal@20543
|
613 r=$2; kept=0
|
pascal@20458
|
614 hold=1; split($2,regs,","); next
|
pascal@20458
|
615 }
|
pascal@21729
|
616 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
|
pascal@20458
|
617 hold=2; r=$2; next
|
pascal@20458
|
618 }
|
pascal@20458
|
619 if (/^ mov [abcds][ix],/ && ! /,.s/) {
|
pascal@20458
|
620 hold=3; split($2,regs,","); next
|
pascal@20458
|
621 }
|
pascal@20458
|
622 if (/^ movzx eax,ax$/) { hold=4; next }
|
pascal@20544
|
623 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
|
pascal@20543
|
624 split($0,regs,",")
|
pascal@20543
|
625 if (isnum(regs[2]) && regs[2] != 0 &&
|
pascal@20543
|
626 (regs[2] % 256) == 0) {
|
pascal@20549
|
627 hold=5; next
|
pascal@20543
|
628 }
|
pascal@20543
|
629 }
|
pascal@20630
|
630 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
|
pascal@20630
|
631 if (/^ mov cl,4$/) { hold=7; next }
|
pascal@20630
|
632 if (/^ cmp word ptr DGROUP:.*,0$/) {
|
pascal@20630
|
633 hold=8; split($2,regs,","); next
|
pascal@20630
|
634 }
|
pascal@20634
|
635 if (/^ cbw/) { hold=11; kept=0; next }
|
pascal@20634
|
636 if (/^ add [abcds][ix],2$/) {
|
pascal@20634
|
637 split($2,regs,","); hold=12; next
|
pascal@20634
|
638 }
|
pascal@20634
|
639 if (/^ sub [abcds][ix],2$/) {
|
pascal@20634
|
640 split($2,regs,","); hold=13; next
|
pascal@20634
|
641 }
|
pascal@21569
|
642 if (/^ push dx$/) {
|
pascal@21569
|
643 hold=14; next;
|
pascal@21569
|
644 }
|
pascal@20458
|
645 }
|
pascal@20458
|
646 else if (hold == 1) {
|
pascal@20543
|
647 if (/^ ;/) { line[kept++]=$0; next }
|
pascal@20458
|
648 hold=0; split($2,args,","); op=""
|
pascal@20458
|
649 if ($1 == "add") op="+"
|
pascal@20458
|
650 if ($1 == "sub") op="-"
|
pascal@20751
|
651 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
652 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20543
|
653 if (op != "" && regs[1] == args[1]) {
|
pascal@20543
|
654 if (isnum(args[2])) {
|
pascal@20630
|
655 for (i = kept++; i > 0; i--) line[i] = line[i-1]
|
pascal@20630
|
656 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
|
pascal@22288
|
657 sub(/\+-/,"-",line[0])
|
pascal@20630
|
658 hold=10; next
|
pascal@20543
|
659 }
|
pascal@20543
|
660 line[kept++]=$0
|
pascal@20543
|
661 hold=1
|
pascal@20458
|
662 next
|
pascal@20458
|
663 }
|
pascal@20520
|
664 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
|
pascal@20520
|
665 print " xchg " r
|
pascal@20520
|
666 }
|
pascal@20543
|
667 else print s
|
pascal@20543
|
668 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20458
|
669 }
|
pascal@20458
|
670 else if (hold == 2) {
|
pascal@21729
|
671 split($0,args,",")
|
pascal@21729
|
672 if (/^ mov / && r == args[2]) { print s; s=$0; next }
|
pascal@21729
|
673 split($2,args,",")
|
pascal@21729
|
674 hold=0; print s
|
pascal@20458
|
675 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
|
pascal@20458
|
676 }
|
pascal@20458
|
677 else if (hold == 3) {
|
pascal@20458
|
678 hold=0
|
pascal@21576
|
679 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
|
pascal@20542
|
680 if (/^ add [abcds][ix],/) {
|
pascal@20458
|
681 split($2,regs2,",")
|
pascal@20458
|
682 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
|
pascal@20549
|
683 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
|
pascal@20458
|
684 print t; print s; next
|
pascal@20458
|
685 }
|
pascal@20458
|
686 }
|
pascal@20458
|
687 print s
|
pascal@20458
|
688 }
|
pascal@20458
|
689 else if (hold == 4) {
|
pascal@20458
|
690 hold=0
|
pascal@20458
|
691 if (/^ push eax$/) {
|
pascal@20458
|
692 print " push 0"; print " push ax"; next
|
pascal@20458
|
693 } else { print s }
|
pascal@20458
|
694 }
|
pascal@20543
|
695 else if (hold == 5) {
|
pascal@20543
|
696 hold=0
|
pascal@20543
|
697 if ($1 == "jae" || $1 == "jb") {
|
pascal@20544
|
698 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
699 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20543
|
700 s = s "/256"
|
pascal@20543
|
701 }
|
pascal@20543
|
702 print s
|
pascal@20543
|
703 }
|
pascal@20630
|
704 else if (hold == 6) {
|
pascal@20630
|
705 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
|
pascal@20630
|
706 line[kept++]=$0
|
pascal@20630
|
707 next
|
pascal@20630
|
708 }
|
pascal@20630
|
709 p=$0
|
pascal@20630
|
710 if (/^ movzx eax,ax$/) {
|
pascal@20630
|
711 s=" mov eax,cs"; p=""
|
pascal@20630
|
712 }
|
pascal@20630
|
713 print s
|
pascal@20630
|
714 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20630
|
715 if (p != "") print p
|
pascal@20630
|
716 hold=0; next
|
pascal@20630
|
717 }
|
pascal@20630
|
718 else if (hold == 7) {
|
pascal@20458
|
719 hold=0
|
pascal@20520
|
720 if (/^ call near ptr N_LXURSH@$/) {
|
pascal@20520
|
721 print " extrn N_LXURSH@4:near"
|
pascal@20520
|
722 print " call near ptr N_LXURSH@4"
|
pascal@20520
|
723 next
|
pascal@20520
|
724 }
|
pascal@20528
|
725 if (/^ call near ptr N_LXLSH@$/) {
|
pascal@20528
|
726 print " extrn N_LXLSH@4:near"
|
pascal@20528
|
727 print " call near ptr N_LXLSH@4"
|
pascal@20528
|
728 next
|
pascal@20528
|
729 }
|
pascal@20520
|
730 print s
|
pascal@20458
|
731 }
|
pascal@20630
|
732 else if (hold == 8) {
|
pascal@20630
|
733 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
|
pascal@20630
|
734 hold=0
|
pascal@20630
|
735 print s
|
pascal@20630
|
736 }
|
pascal@20630
|
737 else if (hold == 9) {
|
pascal@20630
|
738 hold=0; split($2,args,",")
|
pascal@20630
|
739 if (/^ mov ax,/ && args[2] == regs[1]) {
|
pascal@20630
|
740 print; print " or ax,ax"; print p; next
|
pascal@20630
|
741 }
|
pascal@20630
|
742 print s; print p;
|
pascal@20630
|
743 }
|
pascal@20630
|
744 else if (hold == 10) {
|
pascal@20751
|
745 split($2,args,","); op=""
|
pascal@20751
|
746 if ($1 == "add") op="+"
|
pascal@20751
|
747 if ($1 == "sub") op="-"
|
pascal@20751
|
748 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
749 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20751
|
750 if (op != "" && isnum(args[2])) {
|
pascal@20751
|
751 split(line[0],reg,",")
|
pascal@20751
|
752 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
|
pascal@20751
|
753 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
|
pascal@20751
|
754 next
|
pascal@20751
|
755 }
|
pascal@20751
|
756 }
|
pascal@20630
|
757 hold=0
|
pascal@20630
|
758 if (/^ mov [sd]i,ax$/) {
|
pascal@20630
|
759 split($2,args,",")
|
pascal@20630
|
760 for (i = 0; i < kept; i++) {
|
pascal@20630
|
761 sub(/ax/,args[1],line[i]); print line[i]
|
pascal@20630
|
762 }
|
pascal@20630
|
763 next
|
pascal@20630
|
764 }
|
pascal@20630
|
765 for (i = 0; i < kept; i++) print line[i]
|
pascal@20630
|
766 }
|
pascal@20634
|
767 else if (hold == 11) {
|
pascal@20634
|
768 if (/^ inc ax$/ || /^ dec ax$/) {
|
pascal@20634
|
769 line[kept++]=$0; next
|
pascal@20634
|
770 }
|
pascal@20634
|
771 split($2,args,",")
|
pascal@20634
|
772 if (/^ mov cl,/) {
|
pascal@20634
|
773 split($2,args,",")
|
pascal@20634
|
774 if (args[2] >= 8) {
|
pascal@20634
|
775 line[kept++]=$0; next
|
pascal@20634
|
776 }
|
pascal@20634
|
777 }
|
pascal@20634
|
778 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
|
pascal@20634
|
779 print " cbw "
|
pascal@20634
|
780 }
|
pascal@20634
|
781 for (i = 0; i < kept; i++) print line[i]
|
pascal@20634
|
782 hold=kept=0
|
pascal@20634
|
783 }
|
pascal@20634
|
784 else if (hold == 12) {
|
pascal@20634
|
785 hold=0
|
pascal@20634
|
786 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
787 print " inc " regs[1]
|
pascal@20634
|
788 print " inc " regs[1]
|
pascal@20634
|
789 }
|
pascal@20634
|
790 else print " add " regs[1] ",2"
|
pascal@20634
|
791 }
|
pascal@20634
|
792 else if (hold == 13) {
|
pascal@20634
|
793 hold=0
|
pascal@20634
|
794 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
795 print " dec " regs[1]
|
pascal@20634
|
796 print " dec " regs[1]
|
pascal@20634
|
797 }
|
pascal@20634
|
798 else print " sub " regs[1] ",2"
|
pascal@20634
|
799 }
|
pascal@21569
|
800 else if (hold == 14) {
|
pascal@21569
|
801 if (/^ push ax$/) { hold++; next; }
|
pascal@21569
|
802 print " push dx";
|
pascal@21569
|
803 hold=0;
|
pascal@21569
|
804 }
|
pascal@21569
|
805 else if (hold == 15) {
|
pascal@21569
|
806 if (/^ pop eax$/) { hold++; next; }
|
pascal@21569
|
807 print " push dx";
|
pascal@21569
|
808 print " push ax";
|
pascal@21569
|
809 hold=0;
|
pascal@21569
|
810 }
|
pascal@21569
|
811 else if (hold == 16) {
|
pascal@21569
|
812 hold=0;
|
pascal@21569
|
813 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
|
pascal@21569
|
814 print " push dx";
|
pascal@21569
|
815 print " push ax";
|
pascal@21569
|
816 print " pop eax";
|
pascal@21569
|
817 }
|
pascal@21569
|
818 else if (hold == 17) {
|
pascal@21569
|
819 hold=0;
|
pascal@21569
|
820 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
|
pascal@21569
|
821 }
|
pascal@21576
|
822 if (/^ call near ptr @fileexist\$/ || # return boolean :
|
pascal@21576
|
823 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
|
pascal@21628
|
824 /^ call near ptr @isoreset\$/ ||
|
pascal@21628
|
825 /^ call near ptr @isoopen\$/ ||
|
pascal@21628
|
826 /^ call near ptr @isoreadsector\$/ ||
|
pascal@21628
|
827 /^ call near ptr @strhead\$/ ||
|
pascal@23984
|
828 /^ call near ptr @strcmp\$/ ||
|
pascal@21576
|
829 /^ call near ptr @argstr\$/ ||
|
pascal@21576
|
830 /^ call near ptr @argnum\$/) { print; hold=17; next; }
|
pascal@20458
|
831 s=$0
|
pascal@20458
|
832 # These optimisation may break ZF or CF
|
pascal@20485
|
833 if (/^ sub sp,2$/) { print " push ax"; next }
|
pascal@20485
|
834 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
|
pascal@20485
|
835 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
|
pascal@20458
|
836 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
|
pascal@20458
|
837 sub(/mov/,"and",s); print s; next # slower
|
pascal@20458
|
838 }
|
pascal@20458
|
839 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
|
pascal@20458
|
840 sub(/mov/,"or",s); print s; next # slower
|
pascal@20458
|
841 }
|
pascal@20458
|
842 if (/^ or .*,0$/ || /^ and .*,-1$/) next
|
pascal@20458
|
843 if (/^ or [abcd]x,/) {
|
pascal@20458
|
844 split($2,args,",")
|
pascal@20458
|
845 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
846 print " or " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
847 }
|
pascal@20458
|
848 }
|
pascal@20458
|
849 if (/^ and [abcd]x,/) {
|
pascal@20458
|
850 split($2,args,",")
|
pascal@20459
|
851 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
852 print " and " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
853 }
|
pascal@20458
|
854 }
|
pascal@20458
|
855 if (/^ or e[abcd]x,/) {
|
pascal@20458
|
856 split($2,args,",")
|
pascal@20458
|
857 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
858 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
859 print " or " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
860 }
|
pascal@20458
|
861 }
|
pascal@20458
|
862 if (/^ and e[abcd]x,/) {
|
pascal@20458
|
863 split($2,args,",")
|
pascal@20458
|
864 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
865 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
866 print " and " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
867 }
|
pascal@20458
|
868 }
|
pascal@20458
|
869 if (/^ or e[abcds][ix],/) {
|
pascal@20458
|
870 split($2,args,",")
|
pascal@20458
|
871 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
872 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
|
pascal@20458
|
873 print " or " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
874 }
|
pascal@20458
|
875 }
|
pascal@20458
|
876 if (/^ and e[abcds][ix],/) {
|
pascal@20458
|
877 split($2,args,",")
|
pascal@20458
|
878 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
879 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
|
pascal@20458
|
880 print " and " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
881 }
|
pascal@20458
|
882 }
|
pascal@20543
|
883 if (/^ add word ptr/ || /^ sub word ptr/ ||
|
pascal@20544
|
884 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
|
pascal@20542
|
885 split($0,args,",")
|
pascal@20542
|
886 if (isnum(args[2]) && (args[2] % 256 == 0)) {
|
pascal@20544
|
887 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
888 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20542
|
889 print s "/256"; next
|
pascal@20542
|
890 }
|
pascal@20542
|
891 }
|
pascal@20546
|
892 if (/^ add dword ptr/ || /^ sub dword ptr/) {
|
pascal@20458
|
893 split($0,args,",")
|
pascal@20543
|
894 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
895 if (isnum(args[2])) {
|
pascal@20546
|
896 if (args[2] % 16777216 == 0) {
|
pascal@20546
|
897 sub(/dword/,"byte",s)
|
pascal@20543
|
898 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
|
pascal@20458
|
899 print s "/16777216"; next
|
pascal@20458
|
900 }
|
pascal@20458
|
901 if (args[2] % 65536 == 0) {
|
pascal@20546
|
902 sub(/dword/,"word",s)
|
pascal@20543
|
903 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
|
pascal@20458
|
904 print s "/65536"; next
|
pascal@20458
|
905 }
|
pascal@20458
|
906 }
|
pascal@20458
|
907 }
|
pascal@20458
|
908 if (/^ mov e.x,/) {
|
pascal@20458
|
909 split($2,args,",")
|
pascal@20458
|
910 r=args[1]
|
pascal@20458
|
911 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
912 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
|
pascal@20458
|
913 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
|
pascal@20458
|
914 print " xor " r "," r
|
pascal@20458
|
915 if (args[2] == 0) next
|
pascal@20458
|
916 x=" mov " substr(r,2,1)
|
pascal@20458
|
917 if (args[2] % 256 == 0) {
|
pascal@20458
|
918 print x "h," args[2] "/256"
|
pascal@20458
|
919 }
|
pascal@20458
|
920 else { print x "l," args[2] }
|
pascal@20458
|
921 next
|
pascal@20458
|
922 }
|
pascal@20458
|
923 }
|
pascal@20458
|
924 }
|
pascal@21576
|
925 if (afterjmp) print ";" $0
|
pascal@21576
|
926 else print
|
pascal@24022
|
927 if (/^ jmp / || /boot_kernel\(\);/ ||
|
pascal@23992
|
928 /^ call near ptr @die\$qpxzc/ ||
|
pascal@23992
|
929 /^ call near ptr @exit\$qv/) afterjmp=1
|
pascal@20458
|
930 }
|