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