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@21576
|
6 if (/^@.*:$/ || / endp$/) afterjmp=0
|
pascal@21791
|
7 if (/^ \.386p$/) is386=1
|
pascal@21791
|
8 if (file == "" && /debug S/) { file=$3; gsub(/\"/,"",file) }
|
pascal@21984
|
9 if (/debug S/) print " %PAGESIZE 1000"
|
pascal@21984
|
10 if (file == "tazboot.cpp") {
|
pascal@21984
|
11 if (/add si,2/) $0=" lodsw ; " $0
|
pascal@21984
|
12 if (/add si,4/) { print " lodsw"; $0=" lodsw ; " $0 }
|
pascal@21984
|
13 if (/add di,2/) $0=" scasw ; " $0
|
pascal@21989
|
14 if (/int argc/) istazboot=1
|
pascal@21989
|
15 if (istazboot == 1) {
|
pascal@21989
|
16 if (/push.*i$/) $0="; " $0
|
pascal@21989
|
17 if (/word ptr/) { istazboot=0; $0="; " $0 }
|
pascal@21989
|
18 }
|
pascal@21984
|
19 } # file == "tazboot.cpp"
|
pascal@21984
|
20 if (file == "linld.cpp") {
|
pascal@21984
|
21 if (/add si,2/) $0=" lodsw ; " $0
|
pascal@21984
|
22 if (/add di,2/) $0=" scasw ; " $0
|
pascal@21984
|
23 if (/bx,offset DGROUP:s@\+26/) sub(/mov/,";mov")
|
pascal@21984
|
24 if (islinld==1) {
|
pascal@21984
|
25 print "; " $0
|
pascal@21984
|
26 if (!/word ptr/) next
|
pascal@21984
|
27 islinld=0
|
pascal@21984
|
28 sub(/,word.*/,",di ; argv")
|
pascal@21984
|
29 if (/di,di/) { print "; " $0; next }
|
pascal@21984
|
30 }
|
pascal@21984
|
31 if (/^_main proc/) islinld=1
|
pascal@21984
|
32 if (/== 0x662F/) islinld=2
|
pascal@21984
|
33 if (islinld==2) {
|
pascal@21984
|
34 if (/cpuhaslm/) islinld=0
|
pascal@21984
|
35 if (/mov/) { print "; " $0; next }
|
pascal@21984
|
36 }
|
pascal@21984
|
37 if (/image\|initrd/) islinld=3
|
pascal@21984
|
38 if (islinld==3) {
|
pascal@21984
|
39 if (/bx,word ptr/) { islinld=0; print "; " $0; next }
|
pascal@21984
|
40 }
|
pascal@21984
|
41 if (/fileexist\$qpxzc/) islinld=4
|
pascal@21984
|
42 if (islinld==4) {
|
pascal@21984
|
43 if (/ax,-1/) print " mov bx,word ptr [si]"
|
pascal@21984
|
44 if (/ax,word ptr/) $0=" xchg ax,bx"
|
pascal@21984
|
45 if (/\[si\]$/) { islinld=0; print "; " $0; next }
|
pascal@21984
|
46 }
|
pascal@21984
|
47 } # file == "linld.cpp"
|
pascal@21791
|
48 if (file == "himem.cpp") {
|
pascal@21984
|
49 if (/void load_image/) ishimem=1
|
pascal@21791
|
50 if (ishimem == 1 && is386 == 0) {
|
pascal@21791
|
51 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
|
pascal@21791
|
52 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
53 if (/si\+12\],ax/ || /si\+16\],ax/ || /bp-2\],ax/) sub(/,ax/,",es")
|
pascal@21984
|
54 }
|
pascal@21984
|
55 if (ishimem == 1) {
|
pascal@21984
|
56 if (/do \{/) ishimem=2
|
pascal@21984
|
57 if (/byte ptr DGROUP:_vcpi,0/) print " mov bx,si"
|
pascal@21984
|
58 if (/bx,si/) next
|
pascal@21984
|
59 if (/sp,6/) {
|
pascal@21984
|
60 print " push si"
|
pascal@21984
|
61 print " push si"
|
pascal@21984
|
62 next
|
pascal@21984
|
63 }
|
pascal@21984
|
64 }
|
pascal@21984
|
65 if (ishimem == 2) {
|
pascal@21984
|
66 if (/movzx/) print " cwde"
|
pascal@21984
|
67 if (/bp-6/) next
|
pascal@21984
|
68 if (/storepage.bufv/) {
|
pascal@21984
|
69 print " inc ax"
|
pascal@21984
|
70 print " push ax"
|
pascal@21984
|
71 }
|
pascal@21984
|
72 if (/buf \+= size;/) {
|
pascal@21984
|
73 print " pop ax"
|
pascal@21984
|
74 }
|
pascal@21984
|
75 if (/Read error/) ishimem=0
|
pascal@21791
|
76 }
|
pascal@21791
|
77 } # file == "himem.cpp"
|
pascal@21791
|
78 if (file == "load.cpp") {
|
pascal@21998
|
79 if (/== 0x200/) isload=13
|
pascal@21998
|
80 if (isload == 13) { # LOAD.LST
|
pascal@21998
|
81 if (/cmp/) {
|
pascal@21998
|
82 print " mov dx,-512"
|
pascal@21998
|
83 $0=" add ax,dx"
|
pascal@21998
|
84 }
|
pascal@21998
|
85 if (/dx,-512/) {
|
pascal@21998
|
86 isload=0
|
pascal@21998
|
87 $0="; " $0
|
pascal@21998
|
88 }
|
pascal@21998
|
89 }
|
pascal@22152
|
90 if (/i\+21\],513$/) isload=11
|
pascal@21984
|
91 if (isload == 12) { # LOAD.LST
|
pascal@21984
|
92 if (/cmp/) next
|
pascal@21984
|
93 if (/jb/) isload=0
|
pascal@21984
|
94 sub(/jb/,"jcxz")
|
pascal@21984
|
95 }
|
pascal@21984
|
96 if (isload == 11) { # LOAD.LST
|
pascal@21984
|
97 if (/cmp/) {
|
pascal@21984
|
98 print " mov cx,513"
|
pascal@22152
|
99 sub(/cmp /,"sub cx,")
|
pascal@22152
|
100 sub(/,513/,"")
|
pascal@21984
|
101 }
|
pascal@21984
|
102 if (/jb/) isload=12
|
pascal@21984
|
103 sub(/jb/,"ja")
|
pascal@21984
|
104 }
|
pascal@22170
|
105 sub(/_imgs\+65534/,"_imgs-2")
|
pascal@22152
|
106 if (/m, _rm_size/) isload=10
|
pascal@21791
|
107 if (isload == 10) { # LOAD.LST
|
pascal@21791
|
108 if (/^ je /) next
|
pascal@21791
|
109 if (/ptr @die\$qpxzc/) {
|
pascal@21791
|
110 $0=" jne @die@"
|
pascal@21791
|
111 isload=0
|
pascal@21791
|
112 }
|
pascal@21791
|
113 }
|
pascal@21791
|
114 if (/setup_sects == 0/) isload=9
|
pascal@21791
|
115 if (isload == 9) { # LOAD.LST
|
pascal@21791
|
116 sub(/,0/,",al")
|
pascal@21791
|
117 if (/jne/) isload=0
|
pascal@21791
|
118 }
|
pascal@21784
|
119 if (/fallback\)\[1\] == 0/) isload=8
|
pascal@21784
|
120 if (isload == 8) { # LOAD.LST
|
pascal@21784
|
121 if (/load_image/) isload=0
|
pascal@21784
|
122 else next
|
pascal@21784
|
123 }
|
pascal@21757
|
124 if (/cmd_line_ptr =/ && is386 == 0) isload=7
|
pascal@21757
|
125 if (isload == 7) { # LOAD.LST
|
pascal@21757
|
126 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/) next
|
pascal@22170
|
127 if (/enable A20 if needed/) { print nextinst; isload=0 }
|
pascal@21791
|
128 if (/,ax/) $0=" mov bx,55"
|
pascal@22152
|
129 if (/i-463/) $0=" mov bx,-463"
|
pascal@22170
|
130 if (/i-465/) {
|
pascal@22170
|
131 sub(/465/,"2"); sub(/\[/,"[bx+")
|
pascal@22170
|
132 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
|
pascal@22170
|
133 }
|
pascal@21757
|
134 if (/,dx/) {
|
pascal@21757
|
135 print " mov cl,12"
|
pascal@21757
|
136 print " shr ax,cl"
|
pascal@21757
|
137 sub(/dx/,"ax")
|
pascal@21757
|
138 }
|
pascal@21757
|
139 }
|
pascal@21757
|
140 if (/\[0\] = m-\>fallback/) isload=6
|
pascal@21757
|
141 if (isload == 6) { # LOAD.LST
|
pascal@21984
|
142 if (/si\+2/) $0=" lodsw"
|
pascal@21757
|
143 if (/les/) sub(/bx,/,"ax,")
|
pascal@21757
|
144 if (/bx\+4/ || /es:/) {
|
pascal@21757
|
145 if (/bx\+4/) isload=0
|
pascal@21757
|
146 next
|
pascal@21757
|
147 }
|
pascal@21757
|
148 if (/si\+6/) {
|
pascal@21757
|
149 print " xchg ax,di"
|
pascal@21757
|
150 print " movsw"
|
pascal@21757
|
151 print " movsw"
|
pascal@21757
|
152 print " movsw"
|
pascal@21757
|
153 print " movsw"
|
pascal@21757
|
154 print " xchg ax,di"
|
pascal@21757
|
155 next
|
pascal@21757
|
156 }
|
pascal@21757
|
157 }
|
pascal@21757
|
158 if (/version_string = /) isload=5
|
pascal@21757
|
159 if (isload == 5) { # LOAD.LST
|
pascal@21757
|
160 sub(/ax,/,"bx,")
|
pascal@21757
|
161 if (/_version_string,/) isload=0
|
pascal@21757
|
162 if (/mov bx,ax/) next
|
pascal@21757
|
163 }
|
pascal@21757
|
164 if (/topseg\(\)>>12/) isload=4
|
pascal@21757
|
165 if (isload == 4 && is386 == 0) { # LOAD.LST
|
pascal@21757
|
166 if (/push/ || /pop/) next
|
pascal@21757
|
167 if (/ax,cs/) {
|
pascal@21757
|
168 sub(/ax,cs/,"bx,cs")
|
pascal@21757
|
169 }
|
pascal@21757
|
170 if (/dx,dx/) next
|
pascal@21757
|
171 sub(/ax,dx/,"ax,bx")
|
pascal@21784
|
172 if (/call/) {
|
pascal@21784
|
173 print " cmp ax,0fffh"
|
pascal@21784
|
174 print " jae @sys@ok"
|
pascal@21784
|
175 print " mov ax,0fffh"
|
pascal@21784
|
176 print "@sys@ok:"
|
pascal@21784
|
177 isload=400
|
pascal@21784
|
178 }
|
pascal@21757
|
179 }
|
pascal@21791
|
180 if (isload == 400) {
|
pascal@21791
|
181 if (/call/) {
|
pascal@21791
|
182 print " extrn N_LXLSH@4:near"
|
pascal@21791
|
183 sub(/N_LXLSH@/,"N_LXLSH@4")
|
pascal@21791
|
184 }
|
pascal@21757
|
185 sub(/,0/,",dh")
|
pascal@21791
|
186 if (/_base_himem\+2/ || /pop/ || /push/) next
|
pascal@21791
|
187 if (/_base_himem$/) {
|
pascal@21791
|
188 sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
189 isload++
|
pascal@21791
|
190 }
|
pascal@21791
|
191 }
|
pascal@21791
|
192 if (isload == 401) {
|
pascal@21791
|
193 sub(/,ax/,",es")
|
pascal@21791
|
194 if (/load_image/) isload=0
|
pascal@21757
|
195 }
|
pascal@21757
|
196 if (isload == 4 && is386) { # LOAD.LST
|
pascal@21757
|
197 sub(/dx,cs/,"edx,cs")
|
pascal@21757
|
198 sub(/eax/,"edx")
|
pascal@21784
|
199 if (/shl/) {
|
pascal@21784
|
200 print " mov ax,0fffh"
|
pascal@21784
|
201 print " cmp dx,ax"
|
pascal@21784
|
202 print " jae @sys@ok"
|
pascal@21784
|
203 print " xchg ax,dx"
|
pascal@21784
|
204 print "@sys@ok:"
|
pascal@21784
|
205 }
|
pascal@21757
|
206 sub(/ax,9/,"dx,9")
|
pascal@21758
|
207 if (/,0$/) sub(/,0/,",dh")
|
pascal@21757
|
208 if (/movzx/) next
|
pascal@21757
|
209 if (/fallback = base_himem/) { isload=0 }
|
pascal@21757
|
210 }
|
pascal@21754
|
211 if (/void load_initrd\(\)/) isload=3
|
pascal@21754
|
212 if (isload == 3) { # LOAD.LST
|
pascal@21754
|
213 if(/push di/ || /pop di/) next
|
pascal@21754
|
214 sub(/\[di/,"[bx")
|
pascal@21754
|
215 sub(/\di,/,"bx,")
|
pascal@21754
|
216 }
|
pascal@21750
|
217 if (/vid_mode = vid_mode/) isload=2
|
pascal@21750
|
218 if (isload == 2) { # LOAD.LST
|
pascal@21750
|
219 sub(/,0/,""); sub(/cmp /,"mov cx,")
|
pascal@21750
|
220 sub(/je/,"jcxz")
|
pascal@21750
|
221 if (/ax,word/) next
|
pascal@21750
|
222 sub(/,ax/,",cx")
|
pascal@21757
|
223 if (/version_string/ || /starting linux 1\.3\.73/) isload=0
|
pascal@21750
|
224 }
|
pascal@21791
|
225 if (/Not a kernel/ || /_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
|
pascal@21750
|
226 if (isload == 1) { # LOAD.LST
|
pascal@21791
|
227 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
|
pascal@21729
|
228 if (/mov al,byte ptr/ && is386) {
|
pascal@22152
|
229 sub(/mov al/,"movzx eax")
|
pascal@21729
|
230 }
|
pascal@21791
|
231 if (is386 == 0) {
|
pascal@22152
|
232 if (/m->size -= _rm_size/) print " cwd"
|
pascal@21791
|
233 sub(/,0$/,",dx")
|
pascal@21791
|
234 }
|
pascal@21729
|
235 if (/ax,word ptr/) next
|
pascal@21729
|
236 if (/^ call/) isload=0
|
pascal@21729
|
237 }
|
pascal@21791
|
238 } # file == "load.cpp"
|
pascal@21791
|
239 if (file == "iso9660.cpp") {
|
pascal@21791
|
240 if (/<< SECTORBITS/) isiso=9
|
pascal@21791
|
241 if (isiso == 9) { # ISO9660.LST
|
pascal@21791
|
242 if (/dx,/) next
|
pascal@21791
|
243 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
244 if (/^ call/) {
|
pascal@21791
|
245 print " extrn N_LXLSH@ES:near"
|
pascal@21791
|
246 sub(/N_LXLSH@/,"N_LXLSH@ES")
|
pascal@21791
|
247 isiso=0
|
pascal@21791
|
248 }
|
pascal@21791
|
249 }
|
pascal@21791
|
250 if (/filesize =/) isiso=8
|
pascal@21791
|
251 if (isiso == 8) { # ISO9660.LST
|
pascal@21791
|
252 if (/ax,/) next
|
pascal@21791
|
253 sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
254 sub(/,ax/,",es")
|
pascal@21791
|
255 if (/filemod/) isiso=0
|
pascal@21791
|
256 }
|
pascal@21754
|
257 if (/CD001/) isiso=7
|
pascal@21754
|
258 if (isiso == 7) { # ISO9660.LST
|
pascal@21754
|
259 sub(/mov ax,-1/,"dec ax")
|
pascal@21754
|
260 if (/jmp/) isiso=0
|
pascal@21754
|
261 }
|
pascal@21754
|
262 if (/int len =/) isiso=6
|
pascal@21754
|
263 if (isiso == 6) { # ISO9660.LST
|
pascal@21754
|
264 if (/dx,ax/) next
|
pascal@21754
|
265 sub(/ax/,"dx")
|
pascal@21754
|
266 sub(/cx,di/,"bx,di")
|
pascal@21754
|
267 sub(/cx,dx/,"bx,ax")
|
pascal@21754
|
268 sub(/di,dx/,"di,ax")
|
pascal@21754
|
269 if (/while/) isiso=2
|
pascal@21754
|
270 }
|
pascal@21754
|
271 if (/entrysize =/) isiso=5
|
pascal@21754
|
272 if (isiso == 5) { # ISO9660.LST
|
pascal@21754
|
273 if (/ax,ax/) next
|
pascal@21754
|
274 sub(/ax/,"cx")
|
pascal@21754
|
275 sub(/je/,"jcxz")
|
pascal@21754
|
276 if (/return/) isiso=0
|
pascal@21754
|
277 }
|
pascal@21735
|
278 if (/x->curdirsize == 0xFFFF/) isiso=4
|
pascal@21735
|
279 if (isiso == 4) { # ISO9660.LST
|
pascal@21754
|
280 sub(/DGROUP:_isostate\+18/,"[si+18]")
|
pascal@21754
|
281 sub(/DGROUP:_isostate\+20/,"[si+20]")
|
pascal@21747
|
282 if (/goto restarted/) isiso=0
|
pascal@21735
|
283 }
|
pascal@21791
|
284 } # file == "iso9660.cpp"
|
pascal@21791
|
285 if (file == "iso9660.cpp" || file == "tazboot.cpp") {
|
pascal@21754
|
286 if (/do s\+\+; while/) isiso=3
|
pascal@21801
|
287 if (/for \(p = s; \*s && \*s \!=/) isiso=3 # tazboot/main
|
pascal@21750
|
288 if (isiso == 3) { # ISO9660.LST, TAZBOOT.LST
|
pascal@21754
|
289 sub(/cmp byte ptr \[.i\]/,"sub al")
|
pascal@21754
|
290 if (/mov byte ptr \[bp-5\],al/) $0=" push ax"
|
pascal@21754
|
291 if (/mov al,byte ptr \[bp-5\]/) $0=" pop ax"
|
pascal@21754
|
292 if (/inc /) { r=$2; print; next }
|
pascal@21754
|
293 if (/al,0/) print " mov al,[" r "]"
|
pascal@21754
|
294 if (/al,byte ptr/) sub(/mov/,"xchg")
|
pascal@21754
|
295 if (/byte ptr \[.*\],0/) next
|
pascal@21791
|
296 if (/jmp/) {
|
pascal@21791
|
297 print " mov bx,si"
|
pascal@21791
|
298 $0=" db 0A8h ; test al,xx instead of " $0
|
pascal@21791
|
299 }
|
pascal@21754
|
300 if (/word ptr \[bp-4\]/) next
|
pascal@21754
|
301 if (/\) s\+\+;/ || /\],-1/) isiso=0
|
pascal@21735
|
302 }
|
pascal@21791
|
303 } # file == "iso9660.cpp" || file == "tazboot.cpp"
|
pascal@21791
|
304 if (file == "iso9660.cpp") {
|
pascal@21735
|
305 if (/endname = NULL/) isiso=2
|
pascal@21735
|
306 if (isiso == 2) { # ISO9660.LST
|
pascal@21735
|
307 if (/mov bx,cx/) next
|
pascal@21735
|
308 gsub(/cx/,"bx")
|
pascal@21754
|
309 sub(/DGROUP:_isostate\+35/,"[si+35]")
|
pascal@21735
|
310 }
|
pascal@21735
|
311 if (/const char \*n = name/) isiso=1
|
pascal@21735
|
312 if (isiso == 1) { # ISO9660.LST
|
pascal@21735
|
313 if ((/mov word ptr \[si\+32\],ax/ ) ||
|
pascal@21754
|
314 (/mov ax,word ptr \[si\+2\]/) ||
|
pascal@21735
|
315 (/bx,word ptr \[si\+32\]/) || (/ax,dx/)) next
|
pascal@21729
|
316 if (/dx,/) sub(/dx/,"ax")
|
pascal@21754
|
317 if ((/sub ax,word ptr \[si\+2\]/) ||
|
pascal@21754
|
318 (/\[si\+16\]/) || (/ax,di/)) sub(/ax/,"bx")
|
pascal@21754
|
319 if (/add word ptr \[si\+32\],ax/) $0=" add bx,word ptr [si+16]"
|
pascal@21735
|
320 if (/al,/ || /,al/) sub(/al/,"cl")
|
pascal@21754
|
321 if (/cmp byte ptr \[si\+34\],0/) $0=" or cl,cl"
|
pascal@21735
|
322 if (/jne @@0$/) next
|
pascal@21735
|
323 if (/jmp @3@58$/) $0=" je @3@58"
|
pascal@21754
|
324 sub(/mov ax,-1/,"dec ax")
|
pascal@21754
|
325 }
|
pascal@21791
|
326 } # file == "iso9660.cpp"
|
pascal@21754
|
327 if (/endp/) { xlabel = ""; goto2=0 }
|
pascal@21801
|
328 if (/isoopen\(s\+7\)/ && xlabel == "") goto2=1 # tazboot/bootiso
|
pascal@21801
|
329 if (/_vid_mode,ax/ && xlabel == "") goto2=1 # tazboot/main
|
pascal@21801
|
330 if (/_initrd_name,si/ && xlabel == "") goto2=1 # tazboot/main
|
pascal@21801
|
331 if (/_base_himem\+2,/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
|
pascal@21801
|
332 if (/DGROUP:_skip_alloc/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
|
pascal@21754
|
333 if (/puts\(cmdline\)/ && xlabel == "@@") goto2=1
|
pascal@21754
|
334 if (goto2 == 1 && /jmp/) { # TAZBOOT.LST && LINLD.LST
|
pascal@21754
|
335 print $NF xlabel "@:"
|
pascal@21754
|
336 label=$NF
|
pascal@21754
|
337 }
|
pascal@21754
|
338 if (goto2 > 0 && label == $NF) {
|
pascal@21754
|
339 $0=$0 xlabel
|
pascal@21754
|
340 if (goto2++ == 1) xlabel=xlabel "@"
|
pascal@21754
|
341 }
|
pascal@21801
|
342 if (file == "tazboot.cpp" && /close\(x/) isotazboot=16
|
pascal@21801
|
343 if (isotazboot == 160) { # TAZBOOT.LST
|
pascal@21801
|
344 $0="; " $0
|
pascal@21801
|
345 if (/ret/) isotazboot=0
|
pascal@21801
|
346 }
|
pascal@21801
|
347 if (isotazboot == 16) { # TAZBOOT.LST
|
pascal@21801
|
348 if (/@.@/) {
|
pascal@21801
|
349 isotazboot=160
|
pascal@21801
|
350 next
|
pascal@21801
|
351 }
|
pascal@21801
|
352 }
|
pascal@21801
|
353 if (file == "tazboot.cpp" && /jne @@2/) isotazboot=15
|
pascal@21801
|
354 if (isotazboot == 15) { # TAZBOOT.LST
|
pascal@21801
|
355 if (/@.@/) {
|
pascal@21801
|
356 print " pop di"
|
pascal@21801
|
357 print " pop si"
|
pascal@21801
|
358 print " mov sp,bp"
|
pascal@21801
|
359 print " pop bp"
|
pascal@21801
|
360 print " ret"
|
pascal@21801
|
361 next
|
pascal@21801
|
362 }
|
pascal@21801
|
363 if (/skip_alloc/) isotazboot=0
|
pascal@21801
|
364 }
|
pascal@21791
|
365 if (/if\(\*s>=/) isotazboot=14
|
pascal@21791
|
366 if (isotazboot == 14) { # LINLD.LST
|
pascal@21791
|
367 if (/jmp/) {
|
pascal@21791
|
368 $0=" db 0A9h ; test ax,xxxx instead of " $0
|
pascal@21791
|
369 isotazboot=0
|
pascal@21791
|
370 }
|
pascal@21791
|
371 }
|
pascal@21801
|
372 if (file == "tazboot.cpp" && /; s \+= 4/) isotazboot=13 # tazboot/main
|
pascal@21791
|
373 if (isotazboot == 13) { # TAZBOOT.LST
|
pascal@21791
|
374 if (/si,4/) $0=" lea bx,[si+4]"
|
pascal@21791
|
375 if (/bx,si/) next
|
pascal@21791
|
376 if (/DGROUP:_topmem/ || /set_iso/) isotazboot=0
|
pascal@21791
|
377 }
|
pascal@21801
|
378 if (file == "tazboot.cpp" && /case 0x652F:/) isotazboot=12 # tazboot/main
|
pascal@21791
|
379 if (isotazboot == 12) { # TAZBOOT.LST
|
pascal@21791
|
380 sub(/si,word/,"bx,word")
|
pascal@21791
|
381 if (/short/) isotazboot=0
|
pascal@21791
|
382 }
|
pascal@21801
|
383 if (/return load_kernel/) isotazboot=11 # tazboot/isokernel
|
pascal@21791
|
384 if (isotazboot == 11) { # TAZBOOT.LST
|
pascal@21791
|
385 sub(/call/,"jmp")
|
pascal@21791
|
386 if (/ret/ || /pop/) next
|
pascal@21791
|
387 if (/endp/) isotazboot=0
|
pascal@21791
|
388 }
|
pascal@21801
|
389 if (/cmdline=s\+=3/ || /magic \!= 0/ || /&root_dev =/) { isotazboot=10; j="" } # ,tazboot/bootiso,tazboot/main
|
pascal@21754
|
390 if (isotazboot == 10) { # TAZBOOT.LST && LINLD.LST
|
pascal@21754
|
391 if (/je/ || /jne/) { j=$1; next }
|
pascal@21754
|
392 if (/jmp/) {
|
pascal@21754
|
393 if (j=="jne") sub(/jmp/,"je")
|
pascal@21754
|
394 else if (j=="je") sub(/jmp/,"jne")
|
pascal@21754
|
395 isotazboot=0
|
pascal@21754
|
396 }
|
pascal@21754
|
397 }
|
pascal@21801
|
398 if (/static const unsigned long initrddesc = 18L/) isotazboot=9 # tazboot/bootiso
|
pascal@21754
|
399 if (isotazboot == 9) { # TAZBOOT.LST
|
pascal@21754
|
400 if (/,0/) {
|
pascal@21754
|
401 split($4,y,",")
|
pascal@21754
|
402 print " mov bx,offset " y[1]
|
pascal@21801
|
403 sub(/DGROUP:.*,/,"[bx],")
|
pascal@21754
|
404 }
|
pascal@21801
|
405 if (/mov/ && $3 == y[1]) next
|
pascal@21801
|
406 if (/je/) next
|
pascal@21801
|
407 if (/jmp/) sub(/jmp/,"jne")
|
pascal@21801
|
408 sub(/ax,offset/,"bx,offset")
|
pascal@21801
|
409 if (/bx,ax/) { isotazboot=0; next }
|
pascal@21729
|
410 }
|
pascal@21801
|
411 if (/isoopen\(s\+7\) != -1/) isotazboot=8 # tazboot/bootiso
|
pascal@21750
|
412 if (isotazboot == 8) { # TAZBOOT.LST
|
pascal@21801
|
413 sub(/\[bx/,"[si")
|
pascal@21801
|
414 if (/bx,si/) next
|
pascal@21750
|
415 if (/magic/) isotazboot=0
|
pascal@21750
|
416 }
|
pascal@21801
|
417 if (/isoopen\(\"bzImage\"\)/) isotazboot=7 # tazboot/bootiso
|
pascal@21750
|
418 if (isotazboot == 7) { # TAZBOOT.LST
|
pascal@21791
|
419 if (/inc/ || /,al/) next
|
pascal@21791
|
420 if (/al,byte/) sub (/mov al,/,"inc ")
|
pascal@21750
|
421 if (/isokernel/) isotazboot=0
|
pascal@21750
|
422 }
|
pascal@21801
|
423 if (/if \(c\) s\+\+;/) isotazboot=6 # tazboot/main
|
pascal@21750
|
424 if (isotazboot == 6) { # TAZBOOT.LST
|
pascal@21750
|
425 if (/cmp/) {
|
pascal@21750
|
426 $0=" cmp al,0"
|
pascal@21750
|
427 isotazboot=0
|
pascal@21750
|
428 }
|
pascal@21750
|
429 }
|
pascal@21801
|
430 if (/static void next_chunk/) isotazboot=5 # tazboot/next_chunk
|
pascal@21791
|
431 if (isotazboot == 501) {
|
pascal@21791
|
432 if (/ret/) {
|
pascal@21791
|
433 print "@1@86:"
|
pascal@21791
|
434 isotazboot=0
|
pascal@21791
|
435 }
|
pascal@21791
|
436 }
|
pascal@21754
|
437 if (isotazboot == 5 || isotazboot == 500) { # TAZBOOT.LST
|
pascal@21750
|
438 if (/cx,ax/) $0=" xchg ax,bx"
|
pascal@21754
|
439 if (/ax,word ptr \[si\+28\]/ && isotazboot == 500) next
|
pascal@21750
|
440 if (/bx,cx/) next
|
pascal@21754
|
441 if (/push/ || /pop/ || /bp,sp/ || /si,/) next
|
pascal@21754
|
442 sub(/\[si/,"[di")
|
pascal@21754
|
443 if (/initrd_info/) isotazboot=500
|
pascal@21791
|
444 if (/bx\+6\]/) next
|
pascal@21791
|
445 if (/bx\+4\]/) sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
446 sub(/di\+24\],ax/,"di+24],es")
|
pascal@21791
|
447 sub(/call/,"jmp")
|
pascal@21791
|
448 if (/ret/ || /pop/ || /^@1@86:/) next
|
pascal@21791
|
449 if (/_isostate\+14/) next
|
pascal@21791
|
450 if (/_isostate\+12/) {
|
pascal@21791
|
451 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
452 print
|
pascal@21791
|
453 print " mov dx,es"
|
pascal@21791
|
454 next
|
pascal@21791
|
455 }
|
pascal@21791
|
456 if (/ax,-4/) isotazboot++
|
pascal@21750
|
457 }
|
pascal@21801
|
458 if (/0x7FF0/) isotazboot=4 # tazboot/bootiso
|
pascal@21750
|
459 if (isotazboot == 4) { # TAZBOOT.LST
|
pascal@21750
|
460 if (/ax,word ptr/) {
|
pascal@21750
|
461 print " mov ax,32752"
|
pascal@21754
|
462 print " cwd"
|
pascal@21750
|
463 sub(/mov/,"sub")
|
pascal@21750
|
464 }
|
pascal@21750
|
465 if (/bx,/ || /cx,/ || /dx,/) next
|
pascal@21754
|
466 sub(/,0/,",dx")
|
pascal@21754
|
467 sub(/,bx/,",dx")
|
pascal@21750
|
468 sub(/,cx/,",ax")
|
pascal@21754
|
469 if (/@addinitrd\$qv/) isotazboot=0
|
pascal@21750
|
470 }
|
pascal@21801
|
471 if (/c = x->filename/) isotazboot=3 # tazboot/bootiso
|
pascal@21750
|
472 if (isotazboot == 3) { # TAZBOOT.LST
|
pascal@21750
|
473 if (/ax,/) $0=" xchg ax,bx"
|
pascal@21750
|
474 if (/\]$/) next
|
pascal@21750
|
475 if (/@strcpy\$qpxzct1/) isotazboot=0
|
pascal@21750
|
476 }
|
pascal@21801
|
477 if (/base_himem = memtop/) isotazboot=2 # tazboot/bootiso
|
pascal@21750
|
478 if (isotazboot == 2) { # TAZBOOT.LST
|
pascal@21801
|
479 if (/word ptr \[si\+2\],0/) {
|
pascal@21754
|
480 print s; hold=0
|
pascal@21801
|
481 print " mov bx,word ptr [si+2]"
|
pascal@21752
|
482 $0=" or bx,bx"
|
pascal@21752
|
483 }
|
pascal@21752
|
484 if (/\[bp-4\],ax/) sub(/ax/,"bx")
|
pascal@21801
|
485 if (/ax,word ptr \[si\+2\]/ || /bx,ax/) next
|
pascal@21791
|
486 if (/_base_himem\+2,dx/) {
|
pascal@21791
|
487 print " mov bx,offset DGROUP:_base_himem+2"
|
pascal@21791
|
488 }
|
pascal@21791
|
489 sub(/DGROUP:_base_himem,/,"[bx-2],")
|
pascal@21791
|
490 sub(/DGROUP:_base_himem\+2,/,"[bx],")
|
pascal@21791
|
491 sub(/DGROUP:_base_himem\+3,/,"[bx+1],")
|
pascal@21750
|
492 if (/@strcmp\$qpxzct1/) isotazboot=0
|
pascal@21750
|
493 }
|
pascal@21801
|
494 if (/static void addinitrd/) isotazboot=100 # tazboot/addinitrd
|
pascal@21751
|
495 if (isotazboot == 100) { # TAZBOOT.LST
|
pascal@21751
|
496 if (/cx,ax/) {
|
pascal@21754
|
497 print " mov si,offset _isostate+8"
|
pascal@21757
|
498 print " push ds"
|
pascal@21757
|
499 print " pop es"
|
pascal@21754
|
500 print " xchg ax,di"
|
pascal@21751
|
501 print " movsw"
|
pascal@21751
|
502 print " movsw"
|
pascal@21751
|
503 print " movsw"
|
pascal@21751
|
504 print " movsw"
|
pascal@21754
|
505 $0=" xchg ax,di"
|
pascal@21751
|
506 }
|
pascal@21751
|
507 if (/mov/ && !/si/ && !/cl/) next
|
pascal@21754
|
508 if (/void load_initrds/) isotazboot=101
|
pascal@21751
|
509 }
|
pascal@21754
|
510 if (isotazboot == 101 || isotazboot == 102) { # TAZBOOT.LST
|
pascal@21754
|
511 sub(/\[si/,"[di"); sub(/si,/,"di,"); sub(/si$/,"di")
|
pascal@21754
|
512 sub(/DGROUP:_imgs\+38$/,"[di+38-32]")
|
pascal@21754
|
513 sub(/DGROUP:_imgs\+40$/,"[di+40-32]")
|
pascal@21754
|
514 if (/isofd/) isotazboot=102
|
pascal@21754
|
515 if (/push/ && isotazboot == 102) next
|
pascal@21754
|
516 if (/pop/ && isotazboot == 102) next
|
pascal@21754
|
517 if (/load_initrd/) isotazboot=101
|
pascal@21754
|
518 if (/isokernel/) isotazboot=103
|
pascal@21754
|
519 }
|
pascal@21754
|
520 if (isotazboot > 102) { # TAZBOOT.LST
|
pascal@21754
|
521 if (/push/ || /pop/) next
|
pascal@21754
|
522 sub(/\[si/,"[bx")
|
pascal@21750
|
523 sub(/si,/,"bx,")
|
pascal@21750
|
524 if (/static void bootiso/) isotazboot=0
|
pascal@21750
|
525 }
|
pascal@21729
|
526 if (wascall) {
|
pascal@21729
|
527 if (rcall != "") {
|
pascal@21729
|
528 if (/,ax$/) print " mov " rcall ",ax"
|
pascal@21729
|
529 else print " xchg ax," rcall
|
pascal@21729
|
530 wascall=0
|
pascal@21729
|
531 }
|
pascal@21729
|
532 else if (/^ mov .i,ax$/) {
|
pascal@21729
|
533 split($2,y,",")
|
pascal@21729
|
534 rcall=y[1]
|
pascal@21729
|
535 next
|
pascal@21729
|
536 }
|
pascal@21729
|
537 else wascall=0
|
pascal@21729
|
538 }
|
pascal@21729
|
539 if (/^ call /) { wascall=1; rcall="" }
|
pascal@20458
|
540 if (hold == 0) {
|
pascal@20458
|
541 s=$0
|
pascal@20534
|
542 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
|
pascal@20543
|
543 r=$2; kept=0
|
pascal@20458
|
544 hold=1; split($2,regs,","); next
|
pascal@20458
|
545 }
|
pascal@21729
|
546 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
|
pascal@20458
|
547 hold=2; r=$2; next
|
pascal@20458
|
548 }
|
pascal@20458
|
549 if (/^ mov [abcds][ix],/ && ! /,.s/) {
|
pascal@20458
|
550 hold=3; split($2,regs,","); next
|
pascal@20458
|
551 }
|
pascal@20458
|
552 if (/^ movzx eax,ax$/) { hold=4; next }
|
pascal@20544
|
553 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
|
pascal@20543
|
554 split($0,regs,",")
|
pascal@20543
|
555 if (isnum(regs[2]) && regs[2] != 0 &&
|
pascal@20543
|
556 (regs[2] % 256) == 0) {
|
pascal@20549
|
557 hold=5; next
|
pascal@20543
|
558 }
|
pascal@20543
|
559 }
|
pascal@20630
|
560 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
|
pascal@20630
|
561 if (/^ mov cl,4$/) { hold=7; next }
|
pascal@20630
|
562 if (/^ cmp word ptr DGROUP:.*,0$/) {
|
pascal@20630
|
563 hold=8; split($2,regs,","); next
|
pascal@20630
|
564 }
|
pascal@20634
|
565 if (/^ cbw/) { hold=11; kept=0; next }
|
pascal@20634
|
566 if (/^ add [abcds][ix],2$/) {
|
pascal@20634
|
567 split($2,regs,","); hold=12; next
|
pascal@20634
|
568 }
|
pascal@20634
|
569 if (/^ sub [abcds][ix],2$/) {
|
pascal@20634
|
570 split($2,regs,","); hold=13; next
|
pascal@20634
|
571 }
|
pascal@21569
|
572 if (/^ push dx$/) {
|
pascal@21569
|
573 hold=14; next;
|
pascal@21569
|
574 }
|
pascal@20458
|
575 }
|
pascal@20458
|
576 else if (hold == 1) {
|
pascal@20543
|
577 if (/^ ;/) { line[kept++]=$0; next }
|
pascal@20458
|
578 hold=0; split($2,args,","); op=""
|
pascal@20458
|
579 if ($1 == "add") op="+"
|
pascal@20458
|
580 if ($1 == "sub") op="-"
|
pascal@20751
|
581 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
582 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20543
|
583 if (op != "" && regs[1] == args[1]) {
|
pascal@20543
|
584 if (isnum(args[2])) {
|
pascal@20630
|
585 for (i = kept++; i > 0; i--) line[i] = line[i-1]
|
pascal@20630
|
586 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
|
pascal@20630
|
587 hold=10; next
|
pascal@20543
|
588 }
|
pascal@20543
|
589 line[kept++]=$0
|
pascal@20543
|
590 hold=1
|
pascal@20458
|
591 next
|
pascal@20458
|
592 }
|
pascal@20520
|
593 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
|
pascal@20520
|
594 print " xchg " r
|
pascal@20520
|
595 }
|
pascal@20543
|
596 else print s
|
pascal@20543
|
597 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20458
|
598 }
|
pascal@20458
|
599 else if (hold == 2) {
|
pascal@21729
|
600 split($0,args,",")
|
pascal@21729
|
601 if (/^ mov / && r == args[2]) { print s; s=$0; next }
|
pascal@21729
|
602 split($2,args,",")
|
pascal@21729
|
603 hold=0; print s
|
pascal@20458
|
604 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
|
pascal@20458
|
605 }
|
pascal@20458
|
606 else if (hold == 3) {
|
pascal@20458
|
607 hold=0
|
pascal@21576
|
608 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
|
pascal@20542
|
609 if (/^ add [abcds][ix],/) {
|
pascal@20458
|
610 split($2,regs2,",")
|
pascal@20458
|
611 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
|
pascal@20549
|
612 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
|
pascal@20458
|
613 print t; print s; next
|
pascal@20458
|
614 }
|
pascal@20458
|
615 }
|
pascal@20458
|
616 print s
|
pascal@20458
|
617 }
|
pascal@20458
|
618 else if (hold == 4) {
|
pascal@20458
|
619 hold=0
|
pascal@20458
|
620 if (/^ push eax$/) {
|
pascal@20458
|
621 print " push 0"; print " push ax"; next
|
pascal@20458
|
622 } else { print s }
|
pascal@20458
|
623 }
|
pascal@20543
|
624 else if (hold == 5) {
|
pascal@20543
|
625 hold=0
|
pascal@20543
|
626 if ($1 == "jae" || $1 == "jb") {
|
pascal@20544
|
627 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
628 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20543
|
629 s = s "/256"
|
pascal@20543
|
630 }
|
pascal@20543
|
631 print s
|
pascal@20543
|
632 }
|
pascal@20630
|
633 else if (hold == 6) {
|
pascal@20630
|
634 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
|
pascal@20630
|
635 line[kept++]=$0
|
pascal@20630
|
636 next
|
pascal@20630
|
637 }
|
pascal@20630
|
638 p=$0
|
pascal@20630
|
639 if (/^ movzx eax,ax$/) {
|
pascal@20630
|
640 s=" mov eax,cs"; p=""
|
pascal@20630
|
641 }
|
pascal@20630
|
642 print s
|
pascal@20630
|
643 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20630
|
644 if (p != "") print p
|
pascal@20630
|
645 hold=0; next
|
pascal@20630
|
646 }
|
pascal@20630
|
647 else if (hold == 7) {
|
pascal@20458
|
648 hold=0
|
pascal@20520
|
649 if (/^ call near ptr N_LXURSH@$/) {
|
pascal@20520
|
650 print " extrn N_LXURSH@4:near"
|
pascal@20520
|
651 print " call near ptr N_LXURSH@4"
|
pascal@20520
|
652 next
|
pascal@20520
|
653 }
|
pascal@20528
|
654 if (/^ call near ptr N_LXLSH@$/) {
|
pascal@20528
|
655 print " extrn N_LXLSH@4:near"
|
pascal@20528
|
656 print " call near ptr N_LXLSH@4"
|
pascal@20528
|
657 next
|
pascal@20528
|
658 }
|
pascal@20520
|
659 print s
|
pascal@20458
|
660 }
|
pascal@20630
|
661 else if (hold == 8) {
|
pascal@20630
|
662 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
|
pascal@20630
|
663 hold=0
|
pascal@20630
|
664 print s
|
pascal@20630
|
665 }
|
pascal@20630
|
666 else if (hold == 9) {
|
pascal@20630
|
667 hold=0; split($2,args,",")
|
pascal@20630
|
668 if (/^ mov ax,/ && args[2] == regs[1]) {
|
pascal@20630
|
669 print; print " or ax,ax"; print p; next
|
pascal@20630
|
670 }
|
pascal@20630
|
671 print s; print p;
|
pascal@20630
|
672 }
|
pascal@20630
|
673 else if (hold == 10) {
|
pascal@20751
|
674 split($2,args,","); op=""
|
pascal@20751
|
675 if ($1 == "add") op="+"
|
pascal@20751
|
676 if ($1 == "sub") op="-"
|
pascal@20751
|
677 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
678 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20751
|
679 if (op != "" && isnum(args[2])) {
|
pascal@20751
|
680 split(line[0],reg,",")
|
pascal@20751
|
681 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
|
pascal@20751
|
682 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
|
pascal@20751
|
683 next
|
pascal@20751
|
684 }
|
pascal@20751
|
685 }
|
pascal@20630
|
686 hold=0
|
pascal@20630
|
687 if (/^ mov [sd]i,ax$/) {
|
pascal@20630
|
688 split($2,args,",")
|
pascal@20630
|
689 for (i = 0; i < kept; i++) {
|
pascal@20630
|
690 sub(/ax/,args[1],line[i]); print line[i]
|
pascal@20630
|
691 }
|
pascal@20630
|
692 next
|
pascal@20630
|
693 }
|
pascal@20630
|
694 for (i = 0; i < kept; i++) print line[i]
|
pascal@20630
|
695 }
|
pascal@20634
|
696 else if (hold == 11) {
|
pascal@20634
|
697 if (/^ inc ax$/ || /^ dec ax$/) {
|
pascal@20634
|
698 line[kept++]=$0; next
|
pascal@20634
|
699 }
|
pascal@20634
|
700 split($2,args,",")
|
pascal@20634
|
701 if (/^ mov cl,/) {
|
pascal@20634
|
702 split($2,args,",")
|
pascal@20634
|
703 if (args[2] >= 8) {
|
pascal@20634
|
704 line[kept++]=$0; next
|
pascal@20634
|
705 }
|
pascal@20634
|
706 }
|
pascal@20634
|
707 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
|
pascal@20634
|
708 print " cbw "
|
pascal@20634
|
709 }
|
pascal@20634
|
710 for (i = 0; i < kept; i++) print line[i]
|
pascal@20634
|
711 hold=kept=0
|
pascal@20634
|
712 }
|
pascal@20634
|
713 else if (hold == 12) {
|
pascal@20634
|
714 hold=0
|
pascal@20634
|
715 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
716 print " inc " regs[1]
|
pascal@20634
|
717 print " inc " regs[1]
|
pascal@20634
|
718 }
|
pascal@20634
|
719 else print " add " regs[1] ",2"
|
pascal@20634
|
720 }
|
pascal@20634
|
721 else if (hold == 13) {
|
pascal@20634
|
722 hold=0
|
pascal@20634
|
723 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
724 print " dec " regs[1]
|
pascal@20634
|
725 print " dec " regs[1]
|
pascal@20634
|
726 }
|
pascal@20634
|
727 else print " sub " regs[1] ",2"
|
pascal@20634
|
728 }
|
pascal@21569
|
729 else if (hold == 14) {
|
pascal@21569
|
730 if (/^ push ax$/) { hold++; next; }
|
pascal@21569
|
731 print " push dx";
|
pascal@21569
|
732 hold=0;
|
pascal@21569
|
733 }
|
pascal@21569
|
734 else if (hold == 15) {
|
pascal@21569
|
735 if (/^ pop eax$/) { hold++; next; }
|
pascal@21569
|
736 print " push dx";
|
pascal@21569
|
737 print " push ax";
|
pascal@21569
|
738 hold=0;
|
pascal@21569
|
739 }
|
pascal@21569
|
740 else if (hold == 16) {
|
pascal@21569
|
741 hold=0;
|
pascal@21569
|
742 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
|
pascal@21569
|
743 print " push dx";
|
pascal@21569
|
744 print " push ax";
|
pascal@21569
|
745 print " pop eax";
|
pascal@21569
|
746 }
|
pascal@21569
|
747 else if (hold == 17) {
|
pascal@21569
|
748 hold=0;
|
pascal@21569
|
749 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
|
pascal@21569
|
750 }
|
pascal@21576
|
751 if (/^ call near ptr @fileexist\$/ || # return boolean :
|
pascal@21576
|
752 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
|
pascal@21628
|
753 /^ call near ptr @isoreset\$/ ||
|
pascal@21628
|
754 /^ call near ptr @isoopen\$/ ||
|
pascal@21628
|
755 /^ call near ptr @isoreadsector\$/ ||
|
pascal@21628
|
756 /^ call near ptr @strhead\$/ ||
|
pascal@21576
|
757 /^ call near ptr @argstr\$/ ||
|
pascal@21576
|
758 /^ call near ptr @argnum\$/) { print; hold=17; next; }
|
pascal@20458
|
759 s=$0
|
pascal@20458
|
760 # These optimisation may break ZF or CF
|
pascal@20485
|
761 if (/^ sub sp,2$/) { print " push ax"; next }
|
pascal@20485
|
762 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
|
pascal@20485
|
763 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
|
pascal@20458
|
764 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
|
pascal@20458
|
765 sub(/mov/,"and",s); print s; next # slower
|
pascal@20458
|
766 }
|
pascal@20458
|
767 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
|
pascal@20458
|
768 sub(/mov/,"or",s); print s; next # slower
|
pascal@20458
|
769 }
|
pascal@20458
|
770 if (/^ or .*,0$/ || /^ and .*,-1$/) next
|
pascal@20458
|
771 if (/^ or [abcd]x,/) {
|
pascal@20458
|
772 split($2,args,",")
|
pascal@20458
|
773 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
774 print " or " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
775 }
|
pascal@20458
|
776 }
|
pascal@20458
|
777 if (/^ and [abcd]x,/) {
|
pascal@20458
|
778 split($2,args,",")
|
pascal@20459
|
779 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
780 print " and " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
781 }
|
pascal@20458
|
782 }
|
pascal@20458
|
783 if (/^ or e[abcd]x,/) {
|
pascal@20458
|
784 split($2,args,",")
|
pascal@20458
|
785 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
786 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
787 print " or " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
788 }
|
pascal@20458
|
789 }
|
pascal@20458
|
790 if (/^ and e[abcd]x,/) {
|
pascal@20458
|
791 split($2,args,",")
|
pascal@20458
|
792 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
793 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
794 print " and " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
795 }
|
pascal@20458
|
796 }
|
pascal@20458
|
797 if (/^ or e[abcds][ix],/) {
|
pascal@20458
|
798 split($2,args,",")
|
pascal@20458
|
799 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
800 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
|
pascal@20458
|
801 print " or " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
802 }
|
pascal@20458
|
803 }
|
pascal@20458
|
804 if (/^ and e[abcds][ix],/) {
|
pascal@20458
|
805 split($2,args,",")
|
pascal@20458
|
806 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
807 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
|
pascal@20458
|
808 print " and " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
809 }
|
pascal@20458
|
810 }
|
pascal@20543
|
811 if (/^ add word ptr/ || /^ sub word ptr/ ||
|
pascal@20544
|
812 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
|
pascal@20542
|
813 split($0,args,",")
|
pascal@20542
|
814 if (isnum(args[2]) && (args[2] % 256 == 0)) {
|
pascal@20544
|
815 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
816 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20542
|
817 print s "/256"; next
|
pascal@20542
|
818 }
|
pascal@20542
|
819 }
|
pascal@20546
|
820 if (/^ add dword ptr/ || /^ sub dword ptr/) {
|
pascal@20458
|
821 split($0,args,",")
|
pascal@20543
|
822 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
823 if (isnum(args[2])) {
|
pascal@20546
|
824 if (args[2] % 16777216 == 0) {
|
pascal@20546
|
825 sub(/dword/,"byte",s)
|
pascal@20543
|
826 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
|
pascal@20458
|
827 print s "/16777216"; next
|
pascal@20458
|
828 }
|
pascal@20458
|
829 if (args[2] % 65536 == 0) {
|
pascal@20546
|
830 sub(/dword/,"word",s)
|
pascal@20543
|
831 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
|
pascal@20458
|
832 print s "/65536"; next
|
pascal@20458
|
833 }
|
pascal@20458
|
834 }
|
pascal@20458
|
835 }
|
pascal@20458
|
836 if (/^ mov e.x,/) {
|
pascal@20458
|
837 split($2,args,",")
|
pascal@20458
|
838 r=args[1]
|
pascal@20458
|
839 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
840 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
|
pascal@20458
|
841 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
|
pascal@20458
|
842 print " xor " r "," r
|
pascal@20458
|
843 if (args[2] == 0) next
|
pascal@20458
|
844 x=" mov " substr(r,2,1)
|
pascal@20458
|
845 if (args[2] % 256 == 0) {
|
pascal@20458
|
846 print x "h," args[2] "/256"
|
pascal@20458
|
847 }
|
pascal@20458
|
848 else { print x "l," args[2] }
|
pascal@20458
|
849 next
|
pascal@20458
|
850 }
|
pascal@20458
|
851 }
|
pascal@20458
|
852 }
|
pascal@21576
|
853 if (afterjmp) print ";" $0
|
pascal@21576
|
854 else print
|
pascal@21754
|
855 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
|
pascal@21754
|
856 /^ call near ptr @die$qpxzc/) afterjmp=1
|
pascal@20458
|
857 }
|