rev |
line source |
pascal@21791
|
1 BEGIN { hold=0; is386=0; isload=0; isiso=0; istazboot=0; wascall=0; ishimem=0; label="none"; xlabel=""; file="" }
|
pascal@20458
|
2 function isnum(n) { return match(n,/^[0-9+-]/) }
|
pascal@20458
|
3 {
|
pascal@20632
|
4 sub(/segment word public/,"segment byte public")
|
pascal@20634
|
5
|
pascal@22171
|
6 if (/^ ; $/) next
|
pascal@21576
|
7 if (/^@.*:$/ || / endp$/) afterjmp=0
|
pascal@21791
|
8 if (/^ \.386p$/) is386=1
|
pascal@21791
|
9 if (file == "" && /debug S/) { file=$3; gsub(/\"/,"",file) }
|
pascal@21984
|
10 if (/debug S/) print " %PAGESIZE 1000"
|
pascal@21984
|
11 if (file == "tazboot.cpp") {
|
pascal@21984
|
12 if (/add si,2/) $0=" lodsw ; " $0
|
pascal@21984
|
13 if (/add si,4/) { print " lodsw"; $0=" lodsw ; " $0 }
|
pascal@21984
|
14 if (/add di,2/) $0=" scasw ; " $0
|
pascal@21989
|
15 if (/int argc/) istazboot=1
|
pascal@21989
|
16 if (istazboot == 1) {
|
pascal@21989
|
17 if (/push.*i$/) $0="; " $0
|
pascal@21989
|
18 if (/word ptr/) { istazboot=0; $0="; " $0 }
|
pascal@21989
|
19 }
|
pascal@21984
|
20 } # file == "tazboot.cpp"
|
pascal@21984
|
21 if (file == "linld.cpp") {
|
pascal@21984
|
22 if (/add si,2/) $0=" lodsw ; " $0
|
pascal@21984
|
23 if (/add di,2/) $0=" scasw ; " $0
|
pascal@21984
|
24 if (/bx,offset DGROUP:s@\+26/) sub(/mov/,";mov")
|
pascal@21984
|
25 if (islinld==1) {
|
pascal@21984
|
26 print "; " $0
|
pascal@21984
|
27 if (!/word ptr/) next
|
pascal@21984
|
28 islinld=0
|
pascal@21984
|
29 sub(/,word.*/,",di ; argv")
|
pascal@21984
|
30 if (/di,di/) { print "; " $0; next }
|
pascal@21984
|
31 }
|
pascal@21984
|
32 if (/^_main proc/) islinld=1
|
pascal@21984
|
33 if (/== 0x662F/) islinld=2
|
pascal@21984
|
34 if (islinld==2) {
|
pascal@21984
|
35 if (/cpuhaslm/) islinld=0
|
pascal@21984
|
36 if (/mov/) { print "; " $0; next }
|
pascal@21984
|
37 }
|
pascal@21984
|
38 if (/image\|initrd/) islinld=3
|
pascal@21984
|
39 if (islinld==3) {
|
pascal@21984
|
40 if (/bx,word ptr/) { islinld=0; print "; " $0; next }
|
pascal@21984
|
41 }
|
pascal@21984
|
42 if (/fileexist\$qpxzc/) islinld=4
|
pascal@21984
|
43 if (islinld==4) {
|
pascal@21984
|
44 if (/ax,-1/) print " mov bx,word ptr [si]"
|
pascal@21984
|
45 if (/ax,word ptr/) $0=" xchg ax,bx"
|
pascal@21984
|
46 if (/\[si\]$/) { islinld=0; print "; " $0; next }
|
pascal@21984
|
47 }
|
pascal@23804
|
48 if (islinld==5) {
|
pascal@23808
|
49 if (/si/ || /word ptr/) next
|
pascal@23806
|
50 if (/buf_cmdline/) {
|
pascal@23806
|
51 print " lodsw"
|
pascal@23806
|
52 islinld=0
|
pascal@23806
|
53 }
|
pascal@23804
|
54 }
|
pascal@23806
|
55 if (/do strcatb/) islinld=5
|
pascal@21984
|
56 } # file == "linld.cpp"
|
pascal@21791
|
57 if (file == "himem.cpp") {
|
pascal@21984
|
58 if (/void load_image/) ishimem=1
|
pascal@21791
|
59 if (ishimem == 1 && is386 == 0) {
|
pascal@21791
|
60 if (/si\+8\]$/ || /si\+4\]$/ || /si\+16\]$/) next
|
pascal@21791
|
61 if (/si\+6\]$/ || /si\+2\]$/ || /si\+14\]$/) sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
62 if (/si\+12\],ax/ || /si\+16\],ax/ || /bp-2\],ax/) sub(/,ax/,",es")
|
pascal@21984
|
63 }
|
pascal@21984
|
64 if (ishimem == 1) {
|
pascal@21984
|
65 if (/do \{/) ishimem=2
|
pascal@21984
|
66 if (/byte ptr DGROUP:_vcpi,0/) print " mov bx,si"
|
pascal@21984
|
67 if (/bx,si/) next
|
pascal@21984
|
68 if (/sp,6/) {
|
pascal@21984
|
69 print " push si"
|
pascal@21984
|
70 print " push si"
|
pascal@21984
|
71 next
|
pascal@21984
|
72 }
|
pascal@21984
|
73 }
|
pascal@21984
|
74 if (ishimem == 2) {
|
pascal@21984
|
75 if (/movzx/) print " cwde"
|
pascal@21984
|
76 if (/bp-6/) next
|
pascal@21984
|
77 if (/storepage.bufv/) {
|
pascal@21984
|
78 print " inc ax"
|
pascal@21984
|
79 print " push ax"
|
pascal@21984
|
80 }
|
pascal@21984
|
81 if (/buf \+= size;/) {
|
pascal@21984
|
82 print " pop ax"
|
pascal@21984
|
83 }
|
pascal@21984
|
84 if (/Read error/) ishimem=0
|
pascal@21791
|
85 }
|
pascal@21791
|
86 } # file == "himem.cpp"
|
pascal@21791
|
87 if (file == "load.cpp") {
|
pascal@22152
|
88 if (/i\+21\],513$/) isload=11
|
pascal@21984
|
89 if (isload == 12) { # LOAD.LST
|
pascal@21984
|
90 if (/cmp/) next
|
pascal@21984
|
91 if (/jb/) isload=0
|
pascal@21984
|
92 sub(/jb/,"jcxz")
|
pascal@21984
|
93 }
|
pascal@21984
|
94 if (isload == 11) { # LOAD.LST
|
pascal@21984
|
95 if (/cmp/) {
|
pascal@21984
|
96 print " mov cx,513"
|
pascal@22152
|
97 sub(/cmp /,"sub cx,")
|
pascal@22152
|
98 sub(/,513/,"")
|
pascal@21984
|
99 }
|
pascal@21984
|
100 if (/jb/) isload=12
|
pascal@21984
|
101 sub(/jb/,"ja")
|
pascal@21984
|
102 }
|
pascal@22170
|
103 sub(/_imgs\+65534/,"_imgs-2")
|
pascal@22152
|
104 if (/m, _rm_size/) isload=10
|
pascal@21791
|
105 if (isload == 10) { # LOAD.LST
|
pascal@21791
|
106 if (/^ je /) next
|
pascal@21791
|
107 if (/ptr @die\$qpxzc/) {
|
pascal@21791
|
108 $0=" jne @die@"
|
pascal@21791
|
109 isload=0
|
pascal@21791
|
110 }
|
pascal@21791
|
111 }
|
pascal@21791
|
112 if (/setup_sects == 0/) isload=9
|
pascal@21791
|
113 if (isload == 9) { # LOAD.LST
|
pascal@21791
|
114 sub(/,0/,",al")
|
pascal@21791
|
115 if (/jne/) isload=0
|
pascal@21791
|
116 }
|
pascal@21784
|
117 if (/fallback\)\[1\] == 0/) isload=8
|
pascal@21784
|
118 if (isload == 8) { # LOAD.LST
|
pascal@21784
|
119 if (/load_image/) isload=0
|
pascal@21784
|
120 else next
|
pascal@21784
|
121 }
|
pascal@21757
|
122 if (/cmd_line_ptr =/ && is386 == 0) isload=7
|
pascal@21757
|
123 if (isload == 7) { # LOAD.LST
|
pascal@22181
|
124 if (/add/ || /xor/ || /extrn/ || /N_LXLSH@/ || /cl,4/ || /,ax/) next
|
pascal@22170
|
125 if (/enable A20 if needed/) { print nextinst; isload=0 }
|
pascal@22152
|
126 if (/i-463/) $0=" mov bx,-463"
|
pascal@22170
|
127 if (/i-465/) {
|
pascal@22170
|
128 sub(/465/,"2"); sub(/\[/,"[bx+")
|
pascal@22170
|
129 nextinst=$0; sub(/-2\],-23745/,"],8000h",nextinst)
|
pascal@22170
|
130 }
|
pascal@21757
|
131 if (/,dx/) {
|
pascal@21757
|
132 print " mov cl,12"
|
pascal@21757
|
133 print " shr ax,cl"
|
pascal@22181
|
134 print " mov bx,55"
|
pascal@21757
|
135 sub(/dx/,"ax")
|
pascal@21757
|
136 }
|
pascal@21757
|
137 }
|
pascal@21757
|
138 if (/\[0\] = m-\>fallback/) isload=6
|
pascal@21757
|
139 if (isload == 6) { # LOAD.LST
|
pascal@21984
|
140 if (/si\+2/) $0=" lodsw"
|
pascal@21757
|
141 if (/les/) sub(/bx,/,"ax,")
|
pascal@21757
|
142 if (/bx\+4/ || /es:/) {
|
pascal@21757
|
143 if (/bx\+4/) isload=0
|
pascal@21757
|
144 next
|
pascal@21757
|
145 }
|
pascal@21757
|
146 if (/si\+6/) {
|
pascal@21757
|
147 print " xchg ax,di"
|
pascal@21757
|
148 print " movsw"
|
pascal@21757
|
149 print " movsw"
|
pascal@21757
|
150 print " movsw"
|
pascal@21757
|
151 print " movsw"
|
pascal@21757
|
152 print " xchg ax,di"
|
pascal@21757
|
153 next
|
pascal@21757
|
154 }
|
pascal@21757
|
155 }
|
pascal@21757
|
156 if (/version_string = /) isload=5
|
pascal@21757
|
157 if (isload == 5) { # LOAD.LST
|
pascal@21757
|
158 sub(/ax,/,"bx,")
|
pascal@21757
|
159 if (/_version_string,/) isload=0
|
pascal@21757
|
160 if (/mov bx,ax/) next
|
pascal@21757
|
161 }
|
pascal@22180
|
162 if (/_base_himem\+2/ && is386 == 0) isload=4
|
pascal@22180
|
163 if (isload == 4) { # LOAD.LST
|
pascal@22180
|
164 if (/_base_himem\+2/) next
|
pascal@22180
|
165 if (/_base_himem$/) {
|
pascal@22180
|
166 sub(/mov dx,/,"les dx,d")
|
pascal@21757
|
167 }
|
pascal@21791
|
168 sub(/,ax/,",es")
|
pascal@22181
|
169 if (/add ax,word ptr/) $0=" add ax,cx"
|
pascal@22181
|
170 if (/i\+29\],0/) {
|
pascal@22181
|
171 sub(/,0$/,"")
|
pascal@22181
|
172 sub(/cmp /,"mov cx,")
|
pascal@22181
|
173 }
|
pascal@22181
|
174 sub(/je/,"jcxz")
|
pascal@22181
|
175 if (/@strcpy/) isload=0
|
pascal@21757
|
176 }
|
pascal@21754
|
177 if (/void load_initrd\(\)/) isload=3
|
pascal@21754
|
178 if (isload == 3) { # LOAD.LST
|
pascal@21754
|
179 if(/push di/ || /pop di/) next
|
pascal@21754
|
180 sub(/\[di/,"[bx")
|
pascal@21754
|
181 sub(/\di,/,"bx,")
|
pascal@21754
|
182 }
|
pascal@21750
|
183 if (/vid_mode = vid_mode/) isload=2
|
pascal@21750
|
184 if (isload == 2) { # LOAD.LST
|
pascal@21750
|
185 sub(/,0/,""); sub(/cmp /,"mov cx,")
|
pascal@21750
|
186 sub(/je/,"jcxz")
|
pascal@21750
|
187 if (/ax,word/) next
|
pascal@21750
|
188 sub(/,ax/,",cx")
|
pascal@21757
|
189 if (/version_string/ || /starting linux 1\.3\.73/) isload=0
|
pascal@21750
|
190 }
|
pascal@22677
|
191 if (/die\(not_kernel/ || /_rm_size=0x200/ || /heap_top = _rm_buf/) isload=1
|
pascal@21750
|
192 if (isload == 1) { # LOAD.LST
|
pascal@21791
|
193 if (/ptr .die\$qpxzc/) $0="@die@:\n" $0
|
pascal@21729
|
194 if (/mov al,byte ptr/ && is386) {
|
pascal@22152
|
195 sub(/mov al/,"movzx eax")
|
pascal@21729
|
196 }
|
pascal@21791
|
197 if (is386 == 0) {
|
pascal@22152
|
198 if (/m->size -= _rm_size/) print " cwd"
|
pascal@21791
|
199 sub(/,0$/,",dx")
|
pascal@21791
|
200 }
|
pascal@21729
|
201 if (/ax,word ptr/) next
|
pascal@21729
|
202 if (/^ call/) isload=0
|
pascal@21729
|
203 }
|
pascal@21791
|
204 } # file == "load.cpp"
|
pascal@21791
|
205 if (file == "iso9660.cpp") {
|
pascal@23988
|
206 if (/p = x->buffer \+ 34/) isiso=13
|
pascal@23988
|
207 if (isiso == 13) { # ISO9660.LST
|
pascal@23988
|
208 if (/di,si/) $0=" xchg ax,bx"
|
pascal@23988
|
209 if (/di,ax/) $0=" lea di,[si+bx+70]"
|
pascal@23988
|
210 if (/di,70/) {
|
pascal@23988
|
211 isiso=0
|
pascal@23988
|
212 next
|
pascal@23988
|
213 }
|
pascal@23988
|
214 }
|
pascal@23870
|
215 if (/register len/) isiso=12
|
pascal@23870
|
216 if (isiso == 12) { # ISO9660.LST
|
pascal@23870
|
217 sub(/mov dx,ax/,"xchg ax,bx")
|
pascal@23870
|
218 if (/bx,dx/) next
|
pascal@23870
|
219 sub(/i,dx/,"i,bx")
|
pascal@23870
|
220 if (/while/) isiso=0
|
pascal@23870
|
221 }
|
pascal@23864
|
222 if (/while \(\*\+\+s/) isiso=11
|
pascal@23864
|
223 if (isiso == 11) { # ISO9660.LST
|
pascal@23864
|
224 if (/cmp/ || /filename2open/) isiso=0
|
pascal@23864
|
225 if (/cmp/) next
|
pascal@23864
|
226 if (/mov/) {
|
pascal@23864
|
227 sub(/mov bx,/,"cmp byte ptr [")
|
pascal@23864
|
228 sub(/i$/,"i],0")
|
pascal@23864
|
229 }
|
pascal@23864
|
230 }
|
pascal@23863
|
231 if (/curpos >= SECT/) isiso=10
|
pascal@23863
|
232 if (isiso == 10) { # ISO9660.LST
|
pascal@23863
|
233 if (/cmp/) {
|
pascal@23863
|
234 sub(/cmp /,"mov bx,")
|
pascal@23863
|
235 sub(/i.*/,"i]")
|
pascal@23863
|
236 print
|
pascal@23863
|
237 $0=" cmp bh,2048/256"
|
pascal@23863
|
238 }
|
pascal@23863
|
239 if (/mov/) {
|
pascal@23863
|
240 isiso=0
|
pascal@23863
|
241 next
|
pascal@23863
|
242 }
|
pascal@23863
|
243 }
|
pascal@21791
|
244 if (/<< SECTORBITS/) isiso=9
|
pascal@21791
|
245 if (isiso == 9) { # ISO9660.LST
|
pascal@21791
|
246 if (/dx,/) next
|
pascal@21791
|
247 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
248 if (/^ call/) {
|
pascal@21791
|
249 print " extrn N_LXLSH@ES:near"
|
pascal@21791
|
250 sub(/N_LXLSH@/,"N_LXLSH@ES")
|
pascal@21791
|
251 isiso=0
|
pascal@21791
|
252 }
|
pascal@21791
|
253 }
|
pascal@21791
|
254 if (/filesize =/) isiso=8
|
pascal@21791
|
255 if (isiso == 8) { # ISO9660.LST
|
pascal@21791
|
256 if (/ax,/) next
|
pascal@21791
|
257 sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
258 sub(/,ax/,",es")
|
pascal@21791
|
259 if (/filemod/) isiso=0
|
pascal@21791
|
260 }
|
pascal@21754
|
261 if (/CD001/) isiso=7
|
pascal@21754
|
262 if (isiso == 7) { # ISO9660.LST
|
pascal@21754
|
263 sub(/mov ax,-1/,"dec ax")
|
pascal@21754
|
264 if (/jmp/) isiso=0
|
pascal@21754
|
265 }
|
pascal@21754
|
266 if (/int len =/) isiso=6
|
pascal@21754
|
267 if (isiso == 6) { # ISO9660.LST
|
pascal@21754
|
268 if (/dx,ax/) next
|
pascal@21754
|
269 sub(/ax/,"dx")
|
pascal@21754
|
270 sub(/cx,di/,"bx,di")
|
pascal@21754
|
271 sub(/cx,dx/,"bx,ax")
|
pascal@21754
|
272 sub(/di,dx/,"di,ax")
|
pascal@21754
|
273 if (/while/) isiso=2
|
pascal@21754
|
274 }
|
pascal@21754
|
275 if (/entrysize =/) isiso=5
|
pascal@21754
|
276 if (isiso == 5) { # ISO9660.LST
|
pascal@21754
|
277 if (/ax,ax/) next
|
pascal@21754
|
278 sub(/ax/,"cx")
|
pascal@21754
|
279 sub(/je/,"jcxz")
|
pascal@21754
|
280 if (/return/) isiso=0
|
pascal@21754
|
281 }
|
pascal@21735
|
282 if (/x->curdirsize == 0xFFFF/) isiso=4
|
pascal@21735
|
283 if (isiso == 4) { # ISO9660.LST
|
pascal@21754
|
284 sub(/DGROUP:_isostate\+18/,"[si+18]")
|
pascal@21754
|
285 sub(/DGROUP:_isostate\+20/,"[si+20]")
|
pascal@21747
|
286 if (/goto restarted/) isiso=0
|
pascal@21735
|
287 }
|
pascal@21791
|
288 } # file == "iso9660.cpp"
|
pascal@21791
|
289 if (file == "iso9660.cpp" || file == "tazboot.cpp") {
|
pascal@21754
|
290 if (/do s\+\+; while/) isiso=3
|
pascal@21801
|
291 if (/for \(p = s; \*s && \*s \!=/) isiso=3 # tazboot/main
|
pascal@21750
|
292 if (isiso == 3) { # ISO9660.LST, TAZBOOT.LST
|
pascal@21754
|
293 sub(/cmp byte ptr \[.i\]/,"sub al")
|
pascal@21754
|
294 if (/mov byte ptr \[bp-5\],al/) $0=" push ax"
|
pascal@21754
|
295 if (/mov al,byte ptr \[bp-5\]/) $0=" pop ax"
|
pascal@21754
|
296 if (/inc /) { r=$2; print; next }
|
pascal@21754
|
297 if (/al,0/) print " mov al,[" r "]"
|
pascal@21754
|
298 if (/al,byte ptr/) sub(/mov/,"xchg")
|
pascal@21754
|
299 if (/byte ptr \[.*\],0/) next
|
pascal@21791
|
300 if (/jmp/) {
|
pascal@21791
|
301 print " mov bx,si"
|
pascal@21791
|
302 $0=" db 0A8h ; test al,xx instead of " $0
|
pascal@21791
|
303 }
|
pascal@21754
|
304 if (/word ptr \[bp-4\]/) next
|
pascal@21754
|
305 if (/\) s\+\+;/ || /\],-1/) isiso=0
|
pascal@21735
|
306 }
|
pascal@21791
|
307 } # file == "iso9660.cpp" || file == "tazboot.cpp"
|
pascal@21791
|
308 if (file == "iso9660.cpp") {
|
pascal@21735
|
309 if (/endname = NULL/) isiso=2
|
pascal@21735
|
310 if (isiso == 2) { # ISO9660.LST
|
pascal@21735
|
311 if (/mov bx,cx/) next
|
pascal@21735
|
312 gsub(/cx/,"bx")
|
pascal@21754
|
313 sub(/DGROUP:_isostate\+35/,"[si+35]")
|
pascal@21735
|
314 }
|
pascal@21735
|
315 if (/const char \*n = name/) isiso=1
|
pascal@21735
|
316 if (isiso == 1) { # ISO9660.LST
|
pascal@21735
|
317 if ((/mov word ptr \[si\+32\],ax/ ) ||
|
pascal@21754
|
318 (/mov ax,word ptr \[si\+2\]/) ||
|
pascal@21735
|
319 (/bx,word ptr \[si\+32\]/) || (/ax,dx/)) next
|
pascal@21729
|
320 if (/dx,/) sub(/dx/,"ax")
|
pascal@21754
|
321 if ((/sub ax,word ptr \[si\+2\]/) ||
|
pascal@21754
|
322 (/\[si\+16\]/) || (/ax,di/)) sub(/ax/,"bx")
|
pascal@21754
|
323 if (/add word ptr \[si\+32\],ax/) $0=" add bx,word ptr [si+16]"
|
pascal@21735
|
324 if (/al,/ || /,al/) sub(/al/,"cl")
|
pascal@21754
|
325 if (/cmp byte ptr \[si\+34\],0/) $0=" or cl,cl"
|
pascal@21735
|
326 if (/jne @@0$/) next
|
pascal@23984
|
327 if (/jmp @.@58$/) sub(/jmp/,"je")
|
pascal@21754
|
328 sub(/mov ax,-1/,"dec ax")
|
pascal@21754
|
329 }
|
pascal@21791
|
330 } # file == "iso9660.cpp"
|
pascal@21754
|
331 if (/endp/) { xlabel = ""; goto2=0 }
|
pascal@21801
|
332 if (/isoopen\(s\+7\)/ && xlabel == "") goto2=1 # tazboot/bootiso
|
pascal@21801
|
333 if (/_vid_mode,ax/ && xlabel == "") goto2=1 # tazboot/main
|
pascal@21801
|
334 if (/_initrd_name,si/ && xlabel == "") goto2=1 # tazboot/main
|
pascal@21801
|
335 if (/_base_himem\+2,/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
|
pascal@21801
|
336 if (/DGROUP:_skip_alloc/ && xlabel == "@") goto2=1 # tazboot/bootiso tazboot/main
|
pascal@21754
|
337 if (/puts\(cmdline\)/ && xlabel == "@@") goto2=1
|
pascal@21754
|
338 if (goto2 == 1 && /jmp/) { # TAZBOOT.LST && LINLD.LST
|
pascal@21754
|
339 print $NF xlabel "@:"
|
pascal@21754
|
340 label=$NF
|
pascal@21754
|
341 }
|
pascal@21754
|
342 if (goto2 > 0 && label == $NF) {
|
pascal@21754
|
343 $0=$0 xlabel
|
pascal@21754
|
344 if (goto2++ == 1) xlabel=xlabel "@"
|
pascal@21754
|
345 }
|
pascal@21801
|
346 if (file == "tazboot.cpp" && /close\(x/) isotazboot=16
|
pascal@21801
|
347 if (isotazboot == 160) { # TAZBOOT.LST
|
pascal@21801
|
348 $0="; " $0
|
pascal@21801
|
349 if (/ret/) isotazboot=0
|
pascal@21801
|
350 }
|
pascal@21801
|
351 if (isotazboot == 16) { # TAZBOOT.LST
|
pascal@21801
|
352 if (/@.@/) {
|
pascal@21801
|
353 isotazboot=160
|
pascal@21801
|
354 next
|
pascal@21801
|
355 }
|
pascal@21801
|
356 }
|
pascal@21801
|
357 if (file == "tazboot.cpp" && /jne @@2/) isotazboot=15
|
pascal@21801
|
358 if (isotazboot == 15) { # TAZBOOT.LST
|
pascal@21801
|
359 if (/@.@/) {
|
pascal@21801
|
360 print " pop di"
|
pascal@21801
|
361 print " pop si"
|
pascal@21801
|
362 print " mov sp,bp"
|
pascal@21801
|
363 print " pop bp"
|
pascal@21801
|
364 print " ret"
|
pascal@21801
|
365 next
|
pascal@21801
|
366 }
|
pascal@21801
|
367 if (/skip_alloc/) isotazboot=0
|
pascal@21801
|
368 }
|
pascal@21791
|
369 if (/if\(\*s>=/) isotazboot=14
|
pascal@21791
|
370 if (isotazboot == 14) { # LINLD.LST
|
pascal@21791
|
371 if (/jmp/) {
|
pascal@21791
|
372 $0=" db 0A9h ; test ax,xxxx instead of " $0
|
pascal@21791
|
373 isotazboot=0
|
pascal@21791
|
374 }
|
pascal@21791
|
375 }
|
pascal@21801
|
376 if (file == "tazboot.cpp" && /; s \+= 4/) isotazboot=13 # tazboot/main
|
pascal@21791
|
377 if (isotazboot == 13) { # TAZBOOT.LST
|
pascal@21791
|
378 if (/si,4/) $0=" lea bx,[si+4]"
|
pascal@21791
|
379 if (/bx,si/) next
|
pascal@21791
|
380 if (/DGROUP:_topmem/ || /set_iso/) isotazboot=0
|
pascal@21791
|
381 }
|
pascal@21801
|
382 if (file == "tazboot.cpp" && /case 0x652F:/) isotazboot=12 # tazboot/main
|
pascal@21791
|
383 if (isotazboot == 12) { # TAZBOOT.LST
|
pascal@21791
|
384 sub(/si,word/,"bx,word")
|
pascal@21791
|
385 if (/short/) isotazboot=0
|
pascal@21791
|
386 }
|
pascal@21801
|
387 if (/return load_kernel/) isotazboot=11 # tazboot/isokernel
|
pascal@21791
|
388 if (isotazboot == 11) { # TAZBOOT.LST
|
pascal@21791
|
389 sub(/call/,"jmp")
|
pascal@21791
|
390 if (/ret/ || /pop/) next
|
pascal@21791
|
391 if (/endp/) isotazboot=0
|
pascal@21791
|
392 }
|
pascal@21801
|
393 if (/cmdline=s\+=3/ || /magic \!= 0/ || /&root_dev =/) { isotazboot=10; j="" } # ,tazboot/bootiso,tazboot/main
|
pascal@21754
|
394 if (isotazboot == 10) { # TAZBOOT.LST && LINLD.LST
|
pascal@21754
|
395 if (/je/ || /jne/) { j=$1; next }
|
pascal@21754
|
396 if (/jmp/) {
|
pascal@21754
|
397 if (j=="jne") sub(/jmp/,"je")
|
pascal@21754
|
398 else if (j=="je") sub(/jmp/,"jne")
|
pascal@21754
|
399 isotazboot=0
|
pascal@21754
|
400 }
|
pascal@21754
|
401 }
|
pascal@21801
|
402 if (/static const unsigned long initrddesc = 18L/) isotazboot=9 # tazboot/bootiso
|
pascal@21754
|
403 if (isotazboot == 9) { # TAZBOOT.LST
|
pascal@21754
|
404 if (/,0/) {
|
pascal@21754
|
405 split($4,y,",")
|
pascal@21754
|
406 print " mov bx,offset " y[1]
|
pascal@21801
|
407 sub(/DGROUP:.*,/,"[bx],")
|
pascal@21754
|
408 }
|
pascal@21801
|
409 if (/mov/ && $3 == y[1]) next
|
pascal@21801
|
410 if (/je/) next
|
pascal@21801
|
411 if (/jmp/) sub(/jmp/,"jne")
|
pascal@21801
|
412 sub(/ax,offset/,"bx,offset")
|
pascal@21801
|
413 if (/bx,ax/) { isotazboot=0; next }
|
pascal@21729
|
414 }
|
pascal@21801
|
415 if (/isoopen\(s\+7\) != -1/) isotazboot=8 # tazboot/bootiso
|
pascal@21750
|
416 if (isotazboot == 8) { # TAZBOOT.LST
|
pascal@21801
|
417 sub(/\[bx/,"[si")
|
pascal@21801
|
418 if (/bx,si/) next
|
pascal@21750
|
419 if (/magic/) isotazboot=0
|
pascal@21750
|
420 }
|
pascal@21801
|
421 if (/isoopen\(\"bzImage\"\)/) isotazboot=7 # tazboot/bootiso
|
pascal@21750
|
422 if (isotazboot == 7) { # TAZBOOT.LST
|
pascal@21791
|
423 if (/inc/ || /,al/) next
|
pascal@21791
|
424 if (/al,byte/) sub (/mov al,/,"inc ")
|
pascal@21750
|
425 if (/isokernel/) isotazboot=0
|
pascal@21750
|
426 }
|
pascal@21801
|
427 if (/if \(c\) s\+\+;/) isotazboot=6 # tazboot/main
|
pascal@21750
|
428 if (isotazboot == 6) { # TAZBOOT.LST
|
pascal@21750
|
429 if (/cmp/) {
|
pascal@21750
|
430 $0=" cmp al,0"
|
pascal@21750
|
431 isotazboot=0
|
pascal@21750
|
432 }
|
pascal@21750
|
433 }
|
pascal@21801
|
434 if (/static void next_chunk/) isotazboot=5 # tazboot/next_chunk
|
pascal@21791
|
435 if (isotazboot == 501) {
|
pascal@21791
|
436 if (/ret/) {
|
pascal@21791
|
437 print "@1@86:"
|
pascal@21791
|
438 isotazboot=0
|
pascal@21791
|
439 }
|
pascal@21791
|
440 }
|
pascal@21754
|
441 if (isotazboot == 5 || isotazboot == 500) { # TAZBOOT.LST
|
pascal@21750
|
442 if (/cx,ax/) $0=" xchg ax,bx"
|
pascal@21754
|
443 if (/ax,word ptr \[si\+28\]/ && isotazboot == 500) next
|
pascal@21750
|
444 if (/bx,cx/) next
|
pascal@21754
|
445 if (/push/ || /pop/ || /bp,sp/ || /si,/) next
|
pascal@21754
|
446 sub(/\[si/,"[di")
|
pascal@21754
|
447 if (/initrd_info/) isotazboot=500
|
pascal@21791
|
448 if (/bx\+6\]/) next
|
pascal@21791
|
449 if (/bx\+4\]/) sub(/mov dx,/,"les dx,d")
|
pascal@21791
|
450 sub(/di\+24\],ax/,"di+24],es")
|
pascal@21791
|
451 sub(/call/,"jmp")
|
pascal@21791
|
452 if (/ret/ || /pop/ || /^@1@86:/) next
|
pascal@21791
|
453 if (/_isostate\+14/) next
|
pascal@21791
|
454 if (/_isostate\+12/) {
|
pascal@21791
|
455 sub(/mov ax,/,"les ax,d")
|
pascal@21791
|
456 print
|
pascal@21791
|
457 print " mov dx,es"
|
pascal@21791
|
458 next
|
pascal@21791
|
459 }
|
pascal@21791
|
460 if (/ax,-4/) isotazboot++
|
pascal@21750
|
461 }
|
pascal@21801
|
462 if (/0x7FF0/) isotazboot=4 # tazboot/bootiso
|
pascal@21750
|
463 if (isotazboot == 4) { # TAZBOOT.LST
|
pascal@21750
|
464 if (/ax,word ptr/) {
|
pascal@21750
|
465 print " mov ax,32752"
|
pascal@21754
|
466 print " cwd"
|
pascal@21750
|
467 sub(/mov/,"sub")
|
pascal@21750
|
468 }
|
pascal@21750
|
469 if (/bx,/ || /cx,/ || /dx,/) next
|
pascal@21754
|
470 sub(/,0/,",dx")
|
pascal@21754
|
471 sub(/,bx/,",dx")
|
pascal@21750
|
472 sub(/,cx/,",ax")
|
pascal@21754
|
473 if (/@addinitrd\$qv/) isotazboot=0
|
pascal@21750
|
474 }
|
pascal@21801
|
475 if (/c = x->filename/) isotazboot=3 # tazboot/bootiso
|
pascal@21750
|
476 if (isotazboot == 3) { # TAZBOOT.LST
|
pascal@21750
|
477 if (/ax,/) $0=" xchg ax,bx"
|
pascal@21750
|
478 if (/\]$/) next
|
pascal@21750
|
479 if (/@strcpy\$qpxzct1/) isotazboot=0
|
pascal@21750
|
480 }
|
pascal@21801
|
481 if (/base_himem = memtop/) isotazboot=2 # tazboot/bootiso
|
pascal@21750
|
482 if (isotazboot == 2) { # TAZBOOT.LST
|
pascal@21801
|
483 if (/word ptr \[si\+2\],0/) {
|
pascal@21754
|
484 print s; hold=0
|
pascal@21801
|
485 print " mov bx,word ptr [si+2]"
|
pascal@21752
|
486 $0=" or bx,bx"
|
pascal@21752
|
487 }
|
pascal@21752
|
488 if (/\[bp-4\],ax/) sub(/ax/,"bx")
|
pascal@21801
|
489 if (/ax,word ptr \[si\+2\]/ || /bx,ax/) next
|
pascal@21791
|
490 if (/_base_himem\+2,dx/) {
|
pascal@21791
|
491 print " mov bx,offset DGROUP:_base_himem+2"
|
pascal@21791
|
492 }
|
pascal@21791
|
493 sub(/DGROUP:_base_himem,/,"[bx-2],")
|
pascal@21791
|
494 sub(/DGROUP:_base_himem\+2,/,"[bx],")
|
pascal@21791
|
495 sub(/DGROUP:_base_himem\+3,/,"[bx+1],")
|
pascal@21750
|
496 if (/@strcmp\$qpxzct1/) isotazboot=0
|
pascal@21750
|
497 }
|
pascal@21801
|
498 if (/static void addinitrd/) isotazboot=100 # tazboot/addinitrd
|
pascal@21751
|
499 if (isotazboot == 100) { # TAZBOOT.LST
|
pascal@21751
|
500 if (/cx,ax/) {
|
pascal@21754
|
501 print " mov si,offset _isostate+8"
|
pascal@21757
|
502 print " push ds"
|
pascal@21757
|
503 print " pop es"
|
pascal@21754
|
504 print " xchg ax,di"
|
pascal@21751
|
505 print " movsw"
|
pascal@21751
|
506 print " movsw"
|
pascal@21751
|
507 print " movsw"
|
pascal@21751
|
508 print " movsw"
|
pascal@21754
|
509 $0=" xchg ax,di"
|
pascal@21751
|
510 }
|
pascal@21751
|
511 if (/mov/ && !/si/ && !/cl/) next
|
pascal@21754
|
512 if (/void load_initrds/) isotazboot=101
|
pascal@21751
|
513 }
|
pascal@21754
|
514 if (isotazboot == 101 || isotazboot == 102) { # TAZBOOT.LST
|
pascal@21754
|
515 sub(/\[si/,"[di"); sub(/si,/,"di,"); sub(/si$/,"di")
|
pascal@21754
|
516 sub(/DGROUP:_imgs\+38$/,"[di+38-32]")
|
pascal@21754
|
517 sub(/DGROUP:_imgs\+40$/,"[di+40-32]")
|
pascal@21754
|
518 if (/isofd/) isotazboot=102
|
pascal@21754
|
519 if (/push/ && isotazboot == 102) next
|
pascal@21754
|
520 if (/pop/ && isotazboot == 102) next
|
pascal@21754
|
521 if (/load_initrd/) isotazboot=101
|
pascal@21754
|
522 if (/isokernel/) isotazboot=103
|
pascal@21754
|
523 }
|
pascal@21754
|
524 if (isotazboot > 102) { # TAZBOOT.LST
|
pascal@21754
|
525 if (/push/ || /pop/) next
|
pascal@21754
|
526 sub(/\[si/,"[bx")
|
pascal@21750
|
527 sub(/si,/,"bx,")
|
pascal@21750
|
528 if (/static void bootiso/) isotazboot=0
|
pascal@21750
|
529 }
|
pascal@21729
|
530 if (wascall) {
|
pascal@21729
|
531 if (rcall != "") {
|
pascal@21729
|
532 if (/,ax$/) print " mov " rcall ",ax"
|
pascal@21729
|
533 else print " xchg ax," rcall
|
pascal@21729
|
534 wascall=0
|
pascal@21729
|
535 }
|
pascal@21729
|
536 else if (/^ mov .i,ax$/) {
|
pascal@21729
|
537 split($2,y,",")
|
pascal@21729
|
538 rcall=y[1]
|
pascal@21729
|
539 next
|
pascal@21729
|
540 }
|
pascal@21729
|
541 else wascall=0
|
pascal@21729
|
542 }
|
pascal@21729
|
543 if (/^ call /) { wascall=1; rcall="" }
|
pascal@20458
|
544 if (hold == 0) {
|
pascal@20458
|
545 s=$0
|
pascal@20534
|
546 if (/^ mov .[ix],bx$/ || /^ mov .[ix],.i$/) {
|
pascal@20543
|
547 r=$2; kept=0
|
pascal@20458
|
548 hold=1; split($2,regs,","); next
|
pascal@20458
|
549 }
|
pascal@21729
|
550 if (/^ inc e?.[ixhl]/ || /^ dec e?.[ixhl]/) {
|
pascal@20458
|
551 hold=2; r=$2; next
|
pascal@20458
|
552 }
|
pascal@20458
|
553 if (/^ mov [abcds][ix],/ && ! /,.s/) {
|
pascal@20458
|
554 hold=3; split($2,regs,","); next
|
pascal@20458
|
555 }
|
pascal@20458
|
556 if (/^ movzx eax,ax$/) { hold=4; next }
|
pascal@20544
|
557 if (/^ cmp word ptr/ || /^ cmp [bcd]x,/) {
|
pascal@20543
|
558 split($0,regs,",")
|
pascal@20543
|
559 if (isnum(regs[2]) && regs[2] != 0 &&
|
pascal@20543
|
560 (regs[2] % 256) == 0) {
|
pascal@20549
|
561 hold=5; next
|
pascal@20543
|
562 }
|
pascal@20543
|
563 }
|
pascal@20630
|
564 if (/^ mov ax,cs$/) { hold=6; kept=0; next }
|
pascal@20630
|
565 if (/^ mov cl,4$/) { hold=7; next }
|
pascal@20630
|
566 if (/^ cmp word ptr DGROUP:.*,0$/) {
|
pascal@20630
|
567 hold=8; split($2,regs,","); next
|
pascal@20630
|
568 }
|
pascal@20634
|
569 if (/^ cbw/) { hold=11; kept=0; next }
|
pascal@20634
|
570 if (/^ add [abcds][ix],2$/) {
|
pascal@20634
|
571 split($2,regs,","); hold=12; next
|
pascal@20634
|
572 }
|
pascal@20634
|
573 if (/^ sub [abcds][ix],2$/) {
|
pascal@20634
|
574 split($2,regs,","); hold=13; next
|
pascal@20634
|
575 }
|
pascal@21569
|
576 if (/^ push dx$/) {
|
pascal@21569
|
577 hold=14; next;
|
pascal@21569
|
578 }
|
pascal@20458
|
579 }
|
pascal@20458
|
580 else if (hold == 1) {
|
pascal@20543
|
581 if (/^ ;/) { line[kept++]=$0; next }
|
pascal@20458
|
582 hold=0; split($2,args,","); op=""
|
pascal@20458
|
583 if ($1 == "add") op="+"
|
pascal@20458
|
584 if ($1 == "sub") op="-"
|
pascal@20751
|
585 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
586 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20543
|
587 if (op != "" && regs[1] == args[1]) {
|
pascal@20543
|
588 if (isnum(args[2])) {
|
pascal@20630
|
589 for (i = kept++; i > 0; i--) line[i] = line[i-1]
|
pascal@20630
|
590 line[0] = "\tlea\t" regs[1] ",[" regs[2] op args[2] "]"
|
pascal@22288
|
591 sub(/\+-/,"-",line[0])
|
pascal@20630
|
592 hold=10; next
|
pascal@20543
|
593 }
|
pascal@20543
|
594 line[kept++]=$0
|
pascal@20543
|
595 hold=1
|
pascal@20458
|
596 next
|
pascal@20458
|
597 }
|
pascal@20520
|
598 if (/^ pop [ds]i/ && regs[2] ~ /^[ds]i$/) {
|
pascal@20520
|
599 print " xchg " r
|
pascal@20520
|
600 }
|
pascal@20543
|
601 else print s
|
pascal@20543
|
602 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20458
|
603 }
|
pascal@20458
|
604 else if (hold == 2) {
|
pascal@21729
|
605 split($0,args,",")
|
pascal@21729
|
606 if (/^ mov / && r == args[2]) { print s; s=$0; next }
|
pascal@21729
|
607 split($2,args,",")
|
pascal@21729
|
608 hold=0; print s
|
pascal@20458
|
609 if ($1 == "or" && r == args[1] && r == args[2]) next # don't clear C ...
|
pascal@20458
|
610 }
|
pascal@20458
|
611 else if (hold == 3) {
|
pascal@20458
|
612 hold=0
|
pascal@21576
|
613 if (/^ call / && regs[2] == "ax") s=" xchg ax," regs[1]
|
pascal@20542
|
614 if (/^ add [abcds][ix],/) {
|
pascal@20458
|
615 split($2,regs2,",")
|
pascal@20458
|
616 if (regs[1] == regs2[1] && (regs2[2] == "offset" || isnum(regs2[2]))) {
|
pascal@20549
|
617 t=$0; sub(/mov/,$1,s); sub(/add/,"mov",t)
|
pascal@20458
|
618 print t; print s; next
|
pascal@20458
|
619 }
|
pascal@20458
|
620 }
|
pascal@20458
|
621 print s
|
pascal@20458
|
622 }
|
pascal@20458
|
623 else if (hold == 4) {
|
pascal@20458
|
624 hold=0
|
pascal@20458
|
625 if (/^ push eax$/) {
|
pascal@20458
|
626 print " push 0"; print " push ax"; next
|
pascal@20458
|
627 } else { print s }
|
pascal@20458
|
628 }
|
pascal@20543
|
629 else if (hold == 5) {
|
pascal@20543
|
630 hold=0
|
pascal@20543
|
631 if ($1 == "jae" || $1 == "jb") {
|
pascal@20544
|
632 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
633 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20543
|
634 s = s "/256"
|
pascal@20543
|
635 }
|
pascal@20543
|
636 print s
|
pascal@20543
|
637 }
|
pascal@20630
|
638 else if (hold == 6) {
|
pascal@20630
|
639 if (($1 == "and" || $1 == "add") && $2 ~ /^ax,/) {
|
pascal@20630
|
640 line[kept++]=$0
|
pascal@20630
|
641 next
|
pascal@20630
|
642 }
|
pascal@20630
|
643 p=$0
|
pascal@20630
|
644 if (/^ movzx eax,ax$/) {
|
pascal@20630
|
645 s=" mov eax,cs"; p=""
|
pascal@20630
|
646 }
|
pascal@20630
|
647 print s
|
pascal@20630
|
648 for (i = 0; i < kept; i++) print line[i]; kept=0
|
pascal@20630
|
649 if (p != "") print p
|
pascal@20630
|
650 hold=0; next
|
pascal@20630
|
651 }
|
pascal@20630
|
652 else if (hold == 7) {
|
pascal@20458
|
653 hold=0
|
pascal@20520
|
654 if (/^ call near ptr N_LXURSH@$/) {
|
pascal@20520
|
655 print " extrn N_LXURSH@4:near"
|
pascal@20520
|
656 print " call near ptr N_LXURSH@4"
|
pascal@20520
|
657 next
|
pascal@20520
|
658 }
|
pascal@20528
|
659 if (/^ call near ptr N_LXLSH@$/) {
|
pascal@20528
|
660 print " extrn N_LXLSH@4:near"
|
pascal@20528
|
661 print " call near ptr N_LXLSH@4"
|
pascal@20528
|
662 next
|
pascal@20528
|
663 }
|
pascal@20520
|
664 print s
|
pascal@20458
|
665 }
|
pascal@20630
|
666 else if (hold == 8) {
|
pascal@20630
|
667 if ($1 == "je" || $1 == "jne") { p=$0; hold=9; next }
|
pascal@20630
|
668 hold=0
|
pascal@20630
|
669 print s
|
pascal@20630
|
670 }
|
pascal@20630
|
671 else if (hold == 9) {
|
pascal@20630
|
672 hold=0; split($2,args,",")
|
pascal@20630
|
673 if (/^ mov ax,/ && args[2] == regs[1]) {
|
pascal@20630
|
674 print; print " or ax,ax"; print p; next
|
pascal@20630
|
675 }
|
pascal@20630
|
676 print s; print p;
|
pascal@20630
|
677 }
|
pascal@20630
|
678 else if (hold == 10) {
|
pascal@20751
|
679 split($2,args,","); op=""
|
pascal@20751
|
680 if ($1 == "add") op="+"
|
pascal@20751
|
681 if ($1 == "sub") op="-"
|
pascal@20751
|
682 if ($1 == "inc") { op="+"; args[2]="1"; }
|
pascal@20751
|
683 if ($1 == "dec") { op="-"; args[2]="1"; }
|
pascal@20751
|
684 if (op != "" && isnum(args[2])) {
|
pascal@20751
|
685 split(line[0],reg,",")
|
pascal@20751
|
686 if (substr(reg[1],length(reg[1])-1,2) == args[1]) {
|
pascal@20751
|
687 line[0] = substr(line[0],1,length(line[0])-1) op args[2] "]"
|
pascal@20751
|
688 next
|
pascal@20751
|
689 }
|
pascal@20751
|
690 }
|
pascal@20630
|
691 hold=0
|
pascal@20630
|
692 if (/^ mov [sd]i,ax$/) {
|
pascal@20630
|
693 split($2,args,",")
|
pascal@20630
|
694 for (i = 0; i < kept; i++) {
|
pascal@20630
|
695 sub(/ax/,args[1],line[i]); print line[i]
|
pascal@20630
|
696 }
|
pascal@20630
|
697 next
|
pascal@20630
|
698 }
|
pascal@20630
|
699 for (i = 0; i < kept; i++) print line[i]
|
pascal@20630
|
700 }
|
pascal@20634
|
701 else if (hold == 11) {
|
pascal@20634
|
702 if (/^ inc ax$/ || /^ dec ax$/) {
|
pascal@20634
|
703 line[kept++]=$0; next
|
pascal@20634
|
704 }
|
pascal@20634
|
705 split($2,args,",")
|
pascal@20634
|
706 if (/^ mov cl,/) {
|
pascal@20634
|
707 split($2,args,",")
|
pascal@20634
|
708 if (args[2] >= 8) {
|
pascal@20634
|
709 line[kept++]=$0; next
|
pascal@20634
|
710 }
|
pascal@20634
|
711 }
|
pascal@20634
|
712 if (!/^ shl ax,/ || (args[2] != "cl" && args[2] < 8)) {
|
pascal@20634
|
713 print " cbw "
|
pascal@20634
|
714 }
|
pascal@20634
|
715 for (i = 0; i < kept; i++) print line[i]
|
pascal@20634
|
716 hold=kept=0
|
pascal@20634
|
717 }
|
pascal@20634
|
718 else if (hold == 12) {
|
pascal@20634
|
719 hold=0
|
pascal@20634
|
720 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
721 print " inc " regs[1]
|
pascal@20634
|
722 print " inc " regs[1]
|
pascal@20634
|
723 }
|
pascal@20634
|
724 else print " add " regs[1] ",2"
|
pascal@20634
|
725 }
|
pascal@20634
|
726 else if (hold == 13) {
|
pascal@20634
|
727 hold=0
|
pascal@20634
|
728 if ($1 != "adc" && $1 != "sbb" && ! /^ jn?[abc]/) {
|
pascal@20634
|
729 print " dec " regs[1]
|
pascal@20634
|
730 print " dec " regs[1]
|
pascal@20634
|
731 }
|
pascal@20634
|
732 else print " sub " regs[1] ",2"
|
pascal@20634
|
733 }
|
pascal@21569
|
734 else if (hold == 14) {
|
pascal@21569
|
735 if (/^ push ax$/) { hold++; next; }
|
pascal@21569
|
736 print " push dx";
|
pascal@21569
|
737 hold=0;
|
pascal@21569
|
738 }
|
pascal@21569
|
739 else if (hold == 15) {
|
pascal@21569
|
740 if (/^ pop eax$/) { hold++; next; }
|
pascal@21569
|
741 print " push dx";
|
pascal@21569
|
742 print " push ax";
|
pascal@21569
|
743 hold=0;
|
pascal@21569
|
744 }
|
pascal@21569
|
745 else if (hold == 16) {
|
pascal@21569
|
746 hold=0;
|
pascal@21569
|
747 if (/^ shr eax,16$/) { print " xchg ax,dx"; next; }
|
pascal@21569
|
748 print " push dx";
|
pascal@21569
|
749 print " push ax";
|
pascal@21569
|
750 print " pop eax";
|
pascal@21569
|
751 }
|
pascal@21569
|
752 else if (hold == 17) {
|
pascal@21569
|
753 hold=0;
|
pascal@21569
|
754 if (/^ cmp ax,-1$/) { print " inc ax"; next; }
|
pascal@21569
|
755 }
|
pascal@21576
|
756 if (/^ call near ptr @fileexist\$/ || # return boolean :
|
pascal@21576
|
757 /^ call near ptr @isoreaddir\$/ || # 0=true, -1=false
|
pascal@21628
|
758 /^ call near ptr @isoreset\$/ ||
|
pascal@21628
|
759 /^ call near ptr @isoopen\$/ ||
|
pascal@21628
|
760 /^ call near ptr @isoreadsector\$/ ||
|
pascal@21628
|
761 /^ call near ptr @strhead\$/ ||
|
pascal@23984
|
762 /^ call near ptr @strcmp\$/ ||
|
pascal@21576
|
763 /^ call near ptr @argstr\$/ ||
|
pascal@21576
|
764 /^ call near ptr @argnum\$/) { print; hold=17; next; }
|
pascal@20458
|
765 s=$0
|
pascal@20458
|
766 # These optimisation may break ZF or CF
|
pascal@20485
|
767 if (/^ sub sp,2$/) { print " push ax"; next }
|
pascal@20485
|
768 if (/^ sub sp,4$/) { print " push ax"; print " push ax"; next }
|
pascal@20485
|
769 if (/^ add sp,4$/) { print " pop cx"; print " pop cx"; next }
|
pascal@20458
|
770 if (/^ mov d*word ptr .*,0$/ || /^ mov dword ptr .*,large 0$/) {
|
pascal@20458
|
771 sub(/mov/,"and",s); print s; next # slower
|
pascal@20458
|
772 }
|
pascal@20458
|
773 if (/^ mov d*word ptr .*,-1$/ || /^ mov dword ptr .*,large -1$/) {
|
pascal@20458
|
774 sub(/mov/,"or",s); print s; next # slower
|
pascal@20458
|
775 }
|
pascal@20458
|
776 if (/^ or .*,0$/ || /^ and .*,-1$/) next
|
pascal@20458
|
777 if (/^ or [abcd]x,/) {
|
pascal@20458
|
778 split($2,args,",")
|
pascal@20458
|
779 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
780 print " or " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
781 }
|
pascal@20458
|
782 }
|
pascal@20458
|
783 if (/^ and [abcd]x,/) {
|
pascal@20458
|
784 split($2,args,",")
|
pascal@20459
|
785 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
786 print " and " substr(args[1],1,1) "l," args[2]; next
|
pascal@20458
|
787 }
|
pascal@20458
|
788 }
|
pascal@20458
|
789 if (/^ or e[abcd]x,/) {
|
pascal@20458
|
790 split($2,args,",")
|
pascal@20458
|
791 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
792 if (isnum(args[2]) && args[2] >= 0 && args[2] < 256) {
|
pascal@20458
|
793 print " or " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
794 }
|
pascal@20458
|
795 }
|
pascal@20458
|
796 if (/^ and e[abcd]x,/) {
|
pascal@20458
|
797 split($2,args,",")
|
pascal@20458
|
798 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
799 if (isnum(args[2]) && args[2] >= -256 && args[2] < 0) {
|
pascal@20458
|
800 print " and " substr(args[1],2,1) "l," args[2]; next
|
pascal@20458
|
801 }
|
pascal@20458
|
802 }
|
pascal@20458
|
803 if (/^ or e[abcds][ix],/) {
|
pascal@20458
|
804 split($2,args,",")
|
pascal@20458
|
805 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
806 if (isnum(args[2]) && args[2] >= 0 && args[2] < 65536) {
|
pascal@20458
|
807 print " or " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
808 }
|
pascal@20458
|
809 }
|
pascal@20458
|
810 if (/^ and e[abcds][ix],/) {
|
pascal@20458
|
811 split($2,args,",")
|
pascal@20458
|
812 if (args[2] == "large") { args[2] = $3 }
|
pascal@20459
|
813 if (isnum(args[2]) && args[2] >= -65536 && args[2] < 0) {
|
pascal@20458
|
814 print " and " substr(args[1],2) "," args[2]; next
|
pascal@20458
|
815 }
|
pascal@20458
|
816 }
|
pascal@20543
|
817 if (/^ add word ptr/ || /^ sub word ptr/ ||
|
pascal@20544
|
818 /^ add [bcd]x,/ || /^ sub [bcd]x,/) {
|
pascal@20542
|
819 split($0,args,",")
|
pascal@20542
|
820 if (isnum(args[2]) && (args[2] % 256 == 0)) {
|
pascal@20544
|
821 sub(/word ptr/,"byte ptr",s); sub(/x,/,"h,",s) ||
|
pascal@20543
|
822 sub(/\],/,"+1],",s) || sub(/,/,"+1,",s)
|
pascal@20542
|
823 print s "/256"; next
|
pascal@20542
|
824 }
|
pascal@20542
|
825 }
|
pascal@20546
|
826 if (/^ add dword ptr/ || /^ sub dword ptr/) {
|
pascal@20458
|
827 split($0,args,",")
|
pascal@20543
|
828 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
829 if (isnum(args[2])) {
|
pascal@20546
|
830 if (args[2] % 16777216 == 0) {
|
pascal@20546
|
831 sub(/dword/,"byte",s)
|
pascal@20543
|
832 sub(/\],/,"+3],",s) || sub(/,/,"+3,",s)
|
pascal@20458
|
833 print s "/16777216"; next
|
pascal@20458
|
834 }
|
pascal@20458
|
835 if (args[2] % 65536 == 0) {
|
pascal@20546
|
836 sub(/dword/,"word",s)
|
pascal@20543
|
837 sub(/\],/,"+2],",s) || sub(/,/,"+2,",s)
|
pascal@20458
|
838 print s "/65536"; next
|
pascal@20458
|
839 }
|
pascal@20458
|
840 }
|
pascal@20458
|
841 }
|
pascal@20458
|
842 if (/^ mov e.x,/) {
|
pascal@20458
|
843 split($2,args,",")
|
pascal@20458
|
844 r=args[1]
|
pascal@20458
|
845 if (args[2] == "large") { args[2] = $3 }
|
pascal@20458
|
846 if (isnum(args[2]) && args[2] % 65536 == args[2]) {
|
pascal@20458
|
847 if (args[2] % 256 == args[2] || args[2] % 256 == 0) {
|
pascal@20458
|
848 print " xor " r "," r
|
pascal@20458
|
849 if (args[2] == 0) next
|
pascal@20458
|
850 x=" mov " substr(r,2,1)
|
pascal@20458
|
851 if (args[2] % 256 == 0) {
|
pascal@20458
|
852 print x "h," args[2] "/256"
|
pascal@20458
|
853 }
|
pascal@20458
|
854 else { print x "l," args[2] }
|
pascal@20458
|
855 next
|
pascal@20458
|
856 }
|
pascal@20458
|
857 }
|
pascal@20458
|
858 }
|
pascal@21576
|
859 if (afterjmp) print ";" $0
|
pascal@21576
|
860 else print
|
pascal@21754
|
861 if (/^ jmp / || /^ call near ptr _boot_kernel/ ||
|
pascal@21754
|
862 /^ call near ptr @die$qpxzc/) afterjmp=1
|
pascal@20458
|
863 }
|