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[/] [fpga-cf/] [trunk/] [tools/] [PythonAssembler/] [fcpudpip.py] - Blame information for rev 2

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1 2 peteralieb 
# FCP/UDP/IP Assembly Code
2 
from patlpp import *
3 
 
4 
# R2:R1 = Host IP Address
5 
# R5:R4:R3 = Host MAC Address
6 
# R6 = Request Number (incoming packets)
7 
# R7 = Sequence Number (outgoing packets)
8 
# R8 = Acked Number (outgoing packets)
9 
# R9 = Current Local Port
10 
# R10 = Inited Status
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# R11 = Connection Status
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# R12 = Current UDP Host Socket
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# R15 = Debug Register
14 
 
15 
label = globals()
16 
 
17 
IP = [10, 0, 1, 42]
18 
 
19 
INITCODE()
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21 
 
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def SRAP2R(source, dest):
23 
        if not isinstance(source, SR):
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                print "Invalid Shift Register"
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                return 0
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        elif not isinstance(dest, R):
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                print "Invalid Register"
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                return 0
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        inst = Instruction("Copy and Wrap SR:" + str(source) + " to R:" + str(dest))
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        inst.data_mux_s = 4
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        inst.reg_addr = dest.address
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        if (dest.high): inst.reg_wen += 2
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        if (dest.low): inst.reg_wen += 1
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        if (source.sr_num == 1):
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                inst.sr1_out_en = True
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                inst.sr1_in_en = True
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        else:
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                inst.sr2_out_en = True
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                inst.sr2_in_en = True
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        MAN(inst)
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42 
JMP( label["Main"], IF(EQU(C(1),R(10))) )
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MOV( C(0), R(6) )
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MOV( C(0), R(7) )
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MOV( C(0), R(8) )
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MOV( C(1), R(10) )
47 
#: Main
48 
MOV( C(0), IPR())
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MOV( C(0), OPR())
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IN( HBR(), UNTIL([SOF(),SRC()]) )
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IN( HBR() )
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IN( HBR() )
53 
IN( HBR() )
54 
IN( HBR() )
55 
IN( HBR() )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( HBR() )
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IN( R(0) )
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JMP( label["IP_PACKET"], IF(EQU(C(2048), R(0))) ) # test for IP
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RST( IF(NEQ(C(2054), R(0))) ) # test for ARP
66 
 
67 
# -------------------------------------------------------
68 
# ARP Packet Handling
69 
# -------------------------------------------------------
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IN( HBR() ) # skip hardware type
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IN( HBR() )
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IN( HBR() ) # test protocol type
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IN( R(0) )
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RST( IF(NEQ(C(2048),R(0))) )
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IN( HBR() ) # skip length fields
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IN( HBR() )
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IN( HBR() ) # test operation for request
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IN( R(0) )
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RST( IF(NEQ(C(1),R(0))) )
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IN( SR(1) ) # read sender hardware address
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) ) # read sender protocol address
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IN( SR(1) )
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IN( SR(1) )
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IN( SR(1) )
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IN( HBR() ) # skip target hardware
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IN( HBR() )
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IN( HBR() )
93 
IN( HBR() )
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IN( HBR() )
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IN( HBR() )
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RST( IF(NEQ(P(),C(IP[0]),True)) ) # check target protocol address
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IN( HBR() )
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RST( IF(NEQ(P(),C(IP[1]),True)) )
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IN( HBR() )
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RST( IF(NEQ(P(),C(IP[2]),True)) )
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IN( HBR() )
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RST( IF(NEQ(P(),C(IP[3]),True)) )
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IN( HBR() )
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OUT( SR(1), flags=[ASOF()] ) # Ethernet
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OUT( SR(1) )
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OUT( SR(1) )
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OUT( SR(1) )
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OUT( SR(1) )
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OUT( SR(1) )
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OUT( C(0x01) )
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OUT( C(0x23) )
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OUT( C(0x45) )
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OUT( C(0x67) )
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OUT( C(0x89) )
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OUT( C(0xab) )
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OUT( C(0x08) )
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OUT( C(0x06) )
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OUT( C(0) ) # ARP
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OUT( C(1) )
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OUT( C(8) )
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OUT( C(0) )
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OUT( C(6) )
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OUT( C(4) )
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OUT( C(0) )
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OUT( C(2) )
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OUT( C(0x01) )
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OUT( C(0x23) )
128 
OUT( C(0x45) )
129 
OUT( C(0x67) )
130 
OUT( C(0x89) )
131 
OUT( C(0xab) )
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OUT( C(IP[0]) )
133 
OUT( C(IP[1]) )
134 
OUT( C(IP[2]) )
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OUT( C(IP[3]) )
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OUT(SR(1))
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OUT(SR(1))
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OUT(SR(1))
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OUT(SR(1))
140 
OUT(SR(1))
141 
OUT(SR(1))
142 
OUT(SR(1))
143 
OUT(SR(1))
144 
OUT(SR(1))
145 
OUT(SR(1), flags=[AEOF()])
146 
RST()
147 
 
148 
# -------------------------------------------------------
149 
# IP Packet Handling
150 
# -------------------------------------------------------
151 
#: IP_PACKET
152 
IN( HBR() ) # Version/HeaderLen
153 
IN( HBR() ) # Differentiated Services
154 
IN( HBR() ) # Total Length
155 
IN( HBR() ) # Total Leght (cont)
156 
IN( HBR() ) # Id
157 
IN( HBR() ) # Id (cont)
158 
IN( HBR() ) # Flags
159 
IN( HBR() ) # Offset
160 
IN( HBR() ) # Time to live
161 
RST( IF(NEQ(P(),C(17),True) ) )
162 
IN( HBR() ) # Protocol
163 
IN( HBR() ) # Header Checksum
164 
IN( HBR() ) # Header Checksum (cont)
165 
IN( SR(1) ) # Source[3]
166 
IN( SR(1) ) # Source[2]
167 
IN( SR(1) ) # Source[1]
168 
IN( SR(1) ) # Source[0]
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RST( IF(NEQ(P(),C(IP[0]),True)) ) # check target protocol address
170 
IN( HBR() ) # Dest[3]
171 
RST( IF(NEQ(P(),C(IP[1]),True)) )
172 
IN( HBR() ) # Dest[2]
173 
RST( IF(NEQ(P(),C(IP[2]),True)) )
174 
IN( HBR() ) # Dest[1]
175 
RST( IF(NEQ(P(),C(IP[3]),True)) )
176 
IN( HBR() ) # Dest[0]
177 
IN( SR(1) ) # UDP: Source Port
178 
IN( SR(1) ) # Source Port (cont)
179 
IN( HBR() ) # Dest Port
180 
RST( IF(NEQ(P(),C(0x3001))) )
181 
IN( HBR() ) # Dest Port (cont)
182 
IN( HBR() ) # Len
183 
IN( HBR() ) # Len
184 
IN( HBR() ) # CS
185 
IN( HBR() ) # CS
186 
IN( R(0) )
187 
JMP( label["LAB_DAT"], IF( EQU(C(0), R(0), True) ) )
188 
JMP( label["LAB_ACK"], IF( EQU(C(1), R(0), True) ) )
189 
JMP( label["LAB_CON"], IF( EQU(C(2), R(0), True) ) )
190 
JMP( label["LAB_DRQ"], IF( EQU(C(4), R(0), True) ) )
191 
RST()
192 
 
193 
#: LAB_DAT
194 
IN( R(9) )
195 
IN( HBR() )
196 
RST( IF(NEQ(P(),R(6))) )
197 
IN( HBR() )
198 
IN( HBR() )
199 
IN( R(0) )
200 
MOV(R(9), OPR())
201 
SUB( R(0), C(1), R(0) )
202 
JMP( label["END_DAT"], IF(EQU(R(0), C(0))) )
203 
#: INI_DAT
204 
IN( SR(2))
205 
OUT(SR(2), flags=[ASOF()])
206 
SUB( R(0), C(1), R(0) )
207 
JMP( label["END_DAT"], IF(EQU(R(0), C(0))) )
208 
#: BEG_DAT
209 
#BYP( UNTIL( DEC(R(0), C(1)) ) )
210 
IN( SR(2))
211 
OUT(SR(2))
212 
SUB( R(0), C(1), R(0) )
213 
JMP( label["BEG_DAT"], IF(NEQ(R(0), C(0))) )
214 
#: END_DAT
215 
IN(SR(2))
216 
OUT(SR(2), flags=[AEOF()])
217 
MOV(C(0), OPR())
218 
JMP(label["LAB_SENDACK"])
219 
 
220 
#: LAB_ACK
221 
IN( HBR() )
222 
IN( HBR() )
223 
IN( R(8))
224 
IN( HBR() )
225 
IN( HBR() )
226 
IN( HBR() )
227 
RST()
228 
 
229 
#: LAB_CON
230 
IN(HBR())
231 
IN(HBR())
232 
IN(HBR())
233 
IN(HBR())
234 
IN(HBR())
235 
SRAP2R(SR(1), R(3, low=False)) # read sender hardware address
236 
SRAP2R(SR(1), R(3, high=False))
237 
SRAP2R(SR(1), R(4, low=False))
238 
SRAP2R(SR(1), R(4, high=False))
239 
SRAP2R(SR(1), R(5, low=False))
240 
SRAP2R(SR(1), R(5, high=False))
241 
SRAP2R(SR(1), R(1, low=False)) # read sender protocol address
242 
SRAP2R(SR(1), R(1, high=False))
243 
SRAP2R(SR(1), R(2, low=False))
244 
SRAP2R(SR(1), R(2, high=False))
245 
SRAP2R(SR(1), R(12, low=False)) # read sender UDP port
246 
SRAP2R(SR(1), R(12, high=False))
247 
# IN( HBR() ) # read sender hardware address
248 
# IN( R(3) )
249 
# IN( HBR() )
250 
# IN( R(4) )
251 
# IN( HBR() )
252 
# IN( R(5) )
253 
# IN( HBR() ) # read sender protocol address
254 
# IN( R(1) )
255 
# IN( HBR() )
256 
# IN( R(2) )
257 
MOV( C(0), R(6) )
258 
MOV( C(0), R(7) )
259 
MOV( C(0), R(8) )
260 
JMP(label["LAB_SENDACK"])
261 
RST()
262 
 
263 
# -------------------------------------------------------
264 
# Data Request Handling
265 
# -------------------------------------------------------
266 
 
267 
#: LAB_DRQ
268 
IN( R(9) )
269 
IN( HBR() )
270 
RST( IF(NEQ(P(),R(6))) )
271 
IN( HBR() )
272 
IN( HBR() )
273 
IN( R(0) )
274 
OUT(SR(1), flags=[ASOF()])
275 
OUT(SR(1))
276 
OUT(SR(1))
277 
OUT(SR(1))
278 
OUT(SR(1))
279 
OUT(SR(1))
280 
OUT(C(0x01))
281 
OUT(C(0x23))
282 
OUT(C(0x45))
283 
OUT(C(0x67))
284 
OUT(C(0x89))
285 
OUT(C(0xab))
286 
OUT(C(0x08))
287 
OUT(C(0x00))
288 
CSC()
289 
CSA(C(0x4500))
290 
OUT(C(0x45))
291 
OUT(C(0x00))
292 
ADD( C(34), R(0), R(0) )
293 
CSA(R(0))
294 
OUT(R(0, hbs=True))
295 
OUT(R(0))
296 
SUB( R(0), C(34), R(0) )
297 
OUT(C(0x0))
298 
OUT(C(0x0))
299 
OUT(C(0x0))
300 
OUT(C(0x0))
301 
CSA(C(0x2011))
302 
OUT(C(0x20))
303 
OUT(C(0x11))
304 
CSA(C((IP[0] << 8) | IP[1]))
305 
CSA(C((IP[2] << 8) | IP[3]))
306 
CSA(R(1))
307 
CSA(R(2))
308 
OUT(CS(hbs=True))
309 
OUT(CS())
310 
OUT(C(IP[0]))
311 
OUT(C(IP[1]))
312 
OUT(C(IP[2]))
313 
OUT(C(IP[3]))
314 
OUT(SR(1))
315 
OUT(SR(1))
316 
OUT(SR(1))
317 
OUT(SR(1))
318 
CSC()
319 
CSA(C(0x3001))
320 
CSA(R(12))
321 
OUT(C(0x30))
322 
OUT(C(0x01))
323 
OUT(SR(1))
324 
OUT(SR(1))
325 
ADD(C(14),R(0),R(0))
326 
OUT(R(0, hbs=True) )
327 
OUT(R(0))
328 
CSA(R(0))
329 
SUB(R(0),C(14),R(0))
330 
#OUT(CS(hbs=True))
331 
#OUT(CS())
332 
OUT(C(0x00))
333 
OUT(C(0x00))
334 
OUT(C(0x05))
335 
OUT(R(9))
336 
OUT(R(6,hbs=True))
337 
OUT(R(6))
338 
ADD(C(1),R(6),R(6))
339 
OUT(R(0, hbs=True) )
340 
OUT(R(0))
341 
 
342 
MOV( R(9), IPR())
343 
JMP( label["END_DRQ"], IF(EQU(R(0), C(1))) )
344 
#: DRQ_LOOP
345 
IN(SR(2))
346 
OUT(SR(2))
347 
SUB( R(0), C(1), R(0) )
348 
JMP(label["DRQ_LOOP"], IF(NEQ(R(0),C(1))) )
349 
#: END_DRQ
350 
IN(SR(2))
351 
OUT(SR(2), flags=[AEOF()])
352 
RST()
353 
 
354 
# -------------------------------------------------------
355 
# Send Ack
356 
# -------------------------------------------------------
357 
 
358 
#: LAB_SENDACK
359 
OUT(SR(1), flags=[ASOF()])
360 
OUT(SR(1))
361 
OUT(SR(1))
362 
OUT(SR(1))
363 
OUT(SR(1))
364 
OUT(SR(1))
365 
OUT(C(0x01))
366 
OUT(C(0x23))
367 
OUT(C(0x45))
368 
OUT(C(0x67))
369 
OUT(C(0x89))
370 
OUT(C(0xab))
371 
OUT(C(0x08))
372 
OUT(C(0x00))
373 
CSC()
374 
CSA(C(0x4500))
375 
OUT(C(0x45))
376 
OUT(C(0x00))
377 
CSA(C(0x0022))
378 
OUT(C(0x0))
379 
OUT(C(0x22))
380 
OUT(C(0x0))
381 
OUT(C(0x0))
382 
OUT(C(0x0))
383 
OUT(C(0x0))
384 
CSA(C(0x2011))
385 
OUT(C(0x20))
386 
OUT(C(0x11))
387 
CSA(C((IP[0] << 8) | IP[1]))
388 
CSA(C((IP[2] << 8) | IP[3]))
389 
CSA(R(1))
390 
CSA(R(2))
391 
OUT(CS(hbs=True))
392 
OUT(CS())
393 
OUT(C(IP[0]))
394 
OUT(C(IP[1]))
395 
OUT(C(IP[2]))
396 
OUT(C(IP[3]))
397 
OUT(SR(1))
398 
OUT(SR(1))
399 
OUT(SR(1))
400 
OUT(SR(1))
401 
OUT(C(0x30))
402 
OUT(C(0x01))
403 
CSC()
404 
CSA(C(0x3001))
405 
CSA(R(12))
406 
OUT(SR(1))
407 
OUT(SR(1))
408 
OUT(C(0x00))
409 
OUT(C(14))
410 
CSA(C(0x0006))
411 
#OUT(CS(hbs=True))
412 
#OUT(CS())
413 
OUT(C(0x00))
414 
OUT(C(0x00))
415 
OUT(C(0x01))
416 
OUT(C(0x00))
417 
OUT(R(6,hbs=True))
418 
OUT(R(6))
419 
ADD(C(1), R(6), R(6))
420 
OUT(C(0x00))
421 
OUT(C(0x00), flags=[AEOF()])
422 
RST()
423 
 
424 
ENDCODE()

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