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1 709 jeremybenn
;;  Machine Description for Renesas RL78 processors
2
;;  Copyright (C) 2011 Free Software Foundation, Inc.
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;;  Contributed by Red Hat.
4
 
5
;; This file is part of GCC.
6
 
7
;; GCC is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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12
;; GCC is distributed in the hope that it will be useful,
13
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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;; GNU General Public License for more details.
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17
;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING3.  If not see
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;; .
20
 
21
;; The insns in this file correspond to the actual opcodes the RL78
22
;; can issue with real registers.  All insns in here should be
23
;; conditional on rl78_real_insns_ok() returning true, and should
24
;; allow virtual registers in their predicates - the reorg pass that
25
;; allocates physical registers uses the constraints to select
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;; registers, but insns with virtual registers MUST match one of these
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;; patterns - other than the constraints - so that the operand info is
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;; properly set up for the alloc pass.
29
 
30
;;---------- Moving ------------------------
31
 
32
(define_insn "movqi_es"
33
  [(set (reg:QI ES_REG)
34
        (match_operand:QI 0 "register_operand" "a"))]
35
  ""
36
  "mov\tes, %0"
37
)
38
 
39
(define_insn "movqi_cs"
40
  [(set (reg:QI CS_REG)
41
        (match_operand:QI 0 "register_operand" "a"))]
42
  ""
43
  "mov\tcs, %0"
44
)
45
 
46
(define_insn "*movqi_real"
47
  [(set (match_operand:QI 0 "nonimmediate_operand" "=g,RaxbcWab,RaxbcWab,a,                          bcx,R, WabWd2WhlWh1WhbWbcWs1v, bcx")
48
        (match_operand    1 "general_operand"      "0,K,        M,       RInt8sJvWabWdeWd2WhlWh1WhbWbcWs1,Wab,aInt8J,a,                      R"))]
49
  "rl78_real_insns_ok ()"
50
  "@
51
   ; mov\t%0, %1
52
   oneb\t%0
53
   clrb\t%0
54
   mov\t%0, %1
55
   mov\t%0, %1
56
   mov\t%0, %1
57
   mov\t%0, %1
58
   mov\t%0, %S1"
59
)
60
 
61
(define_insn "*movhi_real"
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  [(set (match_operand:HI 0 "nonimmediate_operand" "=g,AB,AB,RSv,A,BDTvSWabWd2WdeWhlWh1WbcWs1, BDT,ABDT,v")
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        (match_operand:HI 1 "general_operand"      " 0,K, M, i,  BDTvSWabWd2WdeWh1WhlWbcWs1,A, BDT,vS,  ABDT"))]
64
  "rl78_real_insns_ok ()"
65
  "@
66
   ; movw\t%0, %1
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   onew\t%0
68
   clrw\t%0
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   movw\t%0, %1
70
   movw\t%0, %1
71
   movw\t%0, %1
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   movw\t%0, %S1
73
   movw\t%0, %1
74
   movw\t%0, %1"
75
)
76
 
77
;;---------- Conversions ------------------------
78
 
79
(define_insn "*zero_extendqihi2_real"
80
  [(set (match_operand:HI                 0 "nonimmediate_operand" "=rv,A")
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        (zero_extend:HI (match_operand:QI 1 "general_operand" "0,a")))]
82
  "rl78_real_insns_ok ()"
83
  "@
84
   mov\t%Q0, #0
85
   mov\tx, a \;mov\ta, #0"
86
  )
87
 
88
(define_insn "*extendqihi2_real"
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  [(set (match_operand:HI                 0 "nonimmediate_operand" "=A,A")
90
        (sign_extend:HI (match_operand:QI 1 "general_operand" "x,a")))]
91
  "rl78_real_insns_ok ()"
92
  "@
93
   shlw\t%0, 8 \;sarw\t%0, 8
94
   sarw\t%0, 8"
95
  )
96
 
97
;;---------- Arithmetic ------------------------
98
 
99
(define_insn "*addqi3_real"
100
  [(set (match_operand:QI          0 "nonimmediate_operand"  "=rvWabWhlWh1,rvWabWhlWh1,a,*bcdehl")
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        (plus:QI (match_operand:QI 1 "general_operand"  "%0,0,0,0")
102
                 (match_operand:QI 2 "general_operand" "K,L,RWhlWh1i,a")))
103
   ]
104
  "rl78_real_insns_ok ()"
105
  "@
106
    inc\t%0
107
    dec\t%0
108
    add\t%0, %2
109
    add\t%0, %2"
110
)
111
 
112
(define_insn "*addhi3_real"
113
  [(set (match_operand:HI          0 "nonimmediate_operand"  "=vABDTWh1Wab,vABDTWh1Wab,v,v,A,S,S,A")
114
        (plus:HI (match_operand:HI 1 "general_operand"  "%0,0,0,0,0,0,0,S")
115
                 (match_operand:HI 2 "general_operand" "K,L,N,O,RWh1WhlWabiv,Int8,J,Ri")))
116
   ]
117
  "rl78_real_insns_ok ()"
118
  "@
119
   incw\t%0
120
   decw\t%0
121
   incw\t%0 \;incw\t%0
122
   decw\t%0 \;decw\t%0
123
   addw\t%0, %p2
124
   addw\t%0, %2
125
   subw\t%0, %m2
126
   movw\t%0, %1 \;addw\t%0, %2"
127
)
128
 
129
(define_insn "*addqihi3a_real"
130
  [(set (match_operand:HI          0 "register_operand"  "=r")
131
        (plus:HI (zero_extend:HI (match_operand:QI 1 "register_operand"  "%r"))
132
                 (match_operand:HI 2 "register_operand" "r")))
133
   ]
134
  "rl78_real_insns_ok ()"
135
  "add\t%q0, %q1 \;addc\t%Q0, #0"
136
)
137
 
138
(define_insn "*subqi3_real"
139
  [(set (match_operand:QI           0 "nonimmediate_operand"  "=a,R,v")
140
        (minus:QI (match_operand:QI 1 "general_operand"  "0,0,0")
141
                  (match_operand:QI 2 "general_operand" "RiWabWhbWh1Whl,a,i")))
142
   ]
143
  "rl78_real_insns_ok ()"
144
  "sub\t%0, %2"
145
)
146
 
147
(define_insn "*subhi3_real"
148
  [(set (match_operand:HI           0 "nonimmediate_operand"  "=A,S")
149
        (minus:HI (match_operand:HI 1 "general_operand"  "0,0")
150
                  (match_operand:HI 2 "general_operand" "iBDTWabWh1v,i")))
151
   ]
152
  "rl78_real_insns_ok ()"
153
  "subw\t%0, %2"
154
)
155
 
156
(define_insn "*umulhi3_shift_real"
157
  [(set (match_operand:HI 0 "register_operand" "=A,A")
158
        (mult:HI (match_operand:HI 1 "rl78_nonfar_operand" "0,0")
159
                 (match_operand:HI 2 "rl78_24_operand" "N,i")))]
160
  "rl78_real_insns_ok ()"
161
  "@
162
   shlw\t%0, 1
163
   shlw\t%0, 2"
164
)
165
 
166
(define_insn "*umulqihi3_real"
167
  [(set (match_operand:HI 0 "nonimmediate_operand" "=A")
168
        (mult:HI (zero_extend:HI (match_operand:QI 1 "general_operand" "%a"))
169
                 (zero_extend:HI (match_operand:QI 2 "general_operand" "x"))))]
170
  "rl78_real_insns_ok ()"
171
  "mulu\t%2"
172
)
173
 
174
(define_insn "*andqi3_real"
175
  [(set (match_operand:QI         0 "nonimmediate_operand"  "=A,R,v")
176
        (and:QI (match_operand:QI 1 "general_operand"       "%0,0,0")
177
                (match_operand:QI 2 "general_operand"       "iRvWabWhbWh1Whl,A,i")))
178
   ]
179
  "rl78_real_insns_ok ()"
180
  "and\t%0, %2"
181
)
182
 
183
(define_insn "*iorqi3_real"
184
  [(set (match_operand:QI         0 "nonimmediate_operand"  "=A,R,v")
185
        (ior:QI (match_operand:QI 1 "general_operand"       "%0,0,0")
186
                (match_operand:QI 2 "general_operand"       "iRvWabWhbWh1Whl,A,i")))
187
   ]
188
  "rl78_real_insns_ok ()"
189
  "or\t%0, %2"
190
)
191
 
192
(define_insn "*xorqi3_real"
193
  [(set (match_operand:QI         0 "nonimmediate_operand"  "=A,R,v")
194
        (xor:QI (match_operand:QI 1 "general_operand"       "%0,0,0")
195
                (match_operand    2 "general_operand"       "iRvWabWhbWh1Whl,A,i")))
196
   ]
197
  "rl78_real_insns_ok ()"
198
  "xor\t%0, %2"
199
)
200
 
201
;;---------- Shifts ------------------------
202
 
203
(define_insn "*ashlqi3_real"
204
  [(set (match_operand:QI            0 "nonimmediate_operand"  "=abc,a,a")
205
        (ashift:QI (match_operand:QI 1 "general_operand"  "0,0,0")
206
                   (match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
207
   ]
208
  "rl78_real_insns_ok ()"
209
  "@
210
   shl\t%0, %u2
211
   cmp0 %2\; bz $2f\; 1: shl\t%0, 1 \;dec %2 \;bnz $1b\;2:
212
   inc %2\;dec %2\;bz $2f\;1: shl\t%0, 1 \;dec %2 \;bnz $1b\;2:"
213
)
214
 
215
(define_insn "*ashlhi3_real"
216
  [(set (match_operand:HI            0 "nonimmediate_operand"  "=AB,A,A")
217
        (ashift:HI (match_operand:HI 1 "general_operand"  "0,0,0")
218
                   (match_operand:QI 2 "general_operand" "P,bc,dehl")))
219
   ]
220
  "rl78_real_insns_ok ()"
221
  "@
222
   shlw\t%0, %u2
223
   cmp0 %2\; bz $2f\; 1: shlw\t%0, 1 \;dec %2 \;bnz $1b\;2:
224
   inc %2\;dec %2\;bz $2f\;1: shlw\t%0, 1 \;dec %2 \;bnz $1b\;2:"
225
)
226
 
227
;;----------
228
 
229
(define_insn "*ashrqi3_real"
230
  [(set (match_operand:QI              0 "nonimmediate_operand"  "=abc,a,a")
231
        (ashiftrt:QI (match_operand:QI 1 "general_operand"  "0,0,0")
232
                     (match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
233
   ]
234
  "rl78_real_insns_ok ()"
235
  "@
236
   sar\t%0, %u2
237
   cmp0 %2\; bz $2f\; 1: sar\t%0, 1 \;dec %2 \;bnz $1b\;2:
238
   inc %2\;dec %2\;bz $2f\;1: sar\t%0, 1\;dec %2 \;bnz $1b\;2:"
239
)
240
 
241
(define_insn "*ashrhi3_real"
242
  [(set (match_operand:HI              0 "nonimmediate_operand"  "=AB,A,A")
243
        (ashiftrt:HI (match_operand:HI 1 "general_operand"  "0,0,0")
244
                     (match_operand:QI 2 "general_operand" "P,bc,dehl")))
245
   ]
246
  "rl78_real_insns_ok ()"
247
  "@
248
   sarw\t%0, %u2
249
   cmp0 %2\; bz $2f\; 1: sarw\t%0, 1 \;dec %2 \;bnz $1b\;2:
250
   inc %2\;dec %2\;bz $2f\;1: sarw\t%0, 1\;dec %2\;bnz $1b\;2:"
251
)
252
 
253
;;----------
254
 
255
(define_insn "*lshrqi3_real"
256
  [(set (match_operand:QI              0 "nonimmediate_operand"  "=abc,a,a")
257
        (lshiftrt:QI (match_operand:QI 1 "general_operand"  "0,0,0")
258
                     (match_operand:QI 2 "general_operand" "Int3,bc,dehl")))
259
   ]
260
  "rl78_real_insns_ok ()"
261
  "@
262
   shr\t%0, %u2
263
   cmp0 %2\; bz $2f\; 1: shr\t%0, 1 \;dec %2 \;bnz $1b\;2:
264
   inc %2\;dec %2\;bz $2f\;1: shr\t%0, 1\;dec %2\;bnz $1b\;2:"
265
)
266
 
267
(define_insn "*lshrhi3_real"
268
  [(set (match_operand:HI              0 "nonimmediate_operand"  "=AB,A,A")
269
        (lshiftrt:HI (match_operand:HI 1 "general_operand"  "0,0,0")
270
                     (match_operand:QI 2 "general_operand" "P,bc,dehl")))
271
   ]
272
  "rl78_real_insns_ok ()"
273
  "@
274
   shrw\t%0, %u2
275
   cmp0 %2\; bz $2f\; 1: shrw\t%0, 1 \;dec %2 \;bnz $1b\;2:
276
   inc %2\;dec %2\;bz $2f\;1: shrw\t%0, 1\;dec %2\;bnz $1b\;2:"
277
)
278
 
279
;;---------- Branching ------------------------
280
 
281
(define_insn "*indirect_jump_real"
282
  [(set (pc)
283
        (match_operand:HI 0 "nonimmediate_operand" "A"))]
284
  "rl78_real_insns_ok ()"
285
  "br\t%0"
286
)
287
 
288
(define_insn "jump"
289
  [(set (pc)
290
        (label_ref (match_operand 0 "" "")))]
291
  ""
292
  ;; $rel8, $!rel16, !abs16, !!abs20
293
  "br\t!!%0"
294
)
295
 
296
(define_insn "*call_real"
297
  [(call (match_operand:HI 0 "memory_operand" "Wab,Wca")
298
         (match_operand 1 "" ""))]
299
  "rl78_real_insns_ok ()"
300
  "@
301
   call\t!!%A0
302
   call\t%A0"
303
  )
304
 
305
(define_insn "*call_value_real"
306
  [(set (match_operand 0 "register_operand" "=v,v")
307
        (call (match_operand:HI 1 "memory_operand" "Wab,Wca")
308
              (match_operand 2 "" "")))]
309
  "rl78_real_insns_ok ()"
310
  "@
311
   call\t!!%A1
312
   call\t%A1"
313
  )
314
 
315
(define_insn "*cbranchqi4_real"
316
  [(set (pc) (if_then_else
317
              (match_operator 0 "rl78_cmp_operator_real"
318
                              [(match_operand:QI 1 "general_operand" "Wabvaxbc,a,          v,bcdehl")
319
                               (match_operand:QI 2 "general_operand" "M,       irWhlWh1Whb,i,a")])
320
              (label_ref (match_operand 3 "" ""))
321
              (pc)))]
322
  "rl78_real_insns_ok ()"
323
  "@
324
   cmp0\t%1 \;sk%c0 \;br\t!!%3
325
   cmp\t%1, %2 \;sk%c0 \;br\t!!%3
326
   cmp\t%1, %2 \;sk%c0 \;br\t!!%3
327
   cmp\t%1, %2 \;sk%c0 \;br\t!!%3"
328
  )
329
 
330
(define_insn "*cbranchhi4_real"
331
  [(set (pc) (if_then_else
332
              (match_operator 0 "rl78_cmp_operator_real"
333
                              [(match_operand:HI 1 "general_operand" "A")
334
                               (match_operand:HI 2 "general_operand" "iBDTWhlWh1")])
335
              (label_ref (match_operand 3 "" ""))
336
              (pc)))]
337
  "rl78_real_insns_ok ()"
338
  "cmpw\t%1, %2 \;sk%c0 \;br\t!!%3"
339
  )

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