xref: /freebsd/contrib/llvm-project/llvm/lib/Target/Mips/MicroMipsDSPInstrFormats.td (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e) 
1//===-- MicroMipsDSPInstrFormats.td - Instruction Formats --*- tablegen -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9class MMDSPInst<string opstr = "">
10    : MipsInst<(outs), (ins), "", [], NoItinerary, FrmOther> {
11  let ASEPredicate = [HasDSP];
12  let EncodingPredicates = [InMicroMips];
13  string BaseOpcode = opstr;
14  string Arch = "mmdsp";
15  let DecoderNamespace = "MicroMips";
16}
17
18class MMDSPInstAlias<string Asm, dag Result, bit Emit = 0b1>
19    : InstAlias<Asm, Result, Emit>, PredicateControl {
20  let ASEPredicate = [HasDSP];
21  let AdditionalPredicates = [InMicroMips];
22}
23
24class POOL32A_3R_FMT<string opstr, bits<11> op> : MMDSPInst<opstr> {
25  bits<5> rd;
26  bits<5> rs;
27  bits<5> rt;
28
29  let Inst{31-26} = 0b000000;
30  let Inst{25-21} = rt;
31  let Inst{20-16} = rs;
32  let Inst{15-11} = rd;
33  let Inst{10-0}  = op;
34}
35
36class POOL32A_2R_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
37  bits<5> rt;
38  bits<5> rs;
39
40  let Inst{31-26} = 0b000000;
41  let Inst{25-21} = rt;
42  let Inst{20-16} = rs;
43  let Inst{15-6}  = op;
44  let Inst{5-0}   = 0b111100;
45}
46
47class POOL32A_2RAC_FMT<string opstr, bits<8> op> : MMDSPInst<opstr> {
48  bits<5> rt;
49  bits<5> rs;
50  bits<2> ac;
51
52  let Inst{31-26} = 0b000000;
53  let Inst{25-21} = rt;
54  let Inst{20-16} = rs;
55  let Inst{15-14} = ac;
56  let Inst{13-6}  = op;
57  let Inst{5-0}   = 0b111100;
58}
59
60class POOL32A_3RB0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
61  bits<5> rd;
62  bits<5> rs;
63  bits<5> rt;
64
65  let Inst{31-26} = 0b000000;
66  let Inst{25-21} = rt;
67  let Inst{20-16} = rs;
68  let Inst{15-11} = rd;
69  let Inst{10}    = 0b0;
70  let Inst{9-0}   = op;
71}
72
73class POOL32A_2RSA4_FMT<string opstr, bits<12> op> : MMDSPInst<opstr> {
74  bits<5> rt;
75  bits<5> rs;
76  bits<4> sa;
77
78  let Inst{31-26} = 0b000000;
79  let Inst{25-21} = rt;
80  let Inst{20-16} = rs;
81  let Inst{15-12} = sa;
82  let Inst{11-0}  = op;
83}
84
85class POOL32A_2RSA3_FMT<string opstr, bits<7> op> : MMDSPInst<opstr> {
86  bits<5> rt;
87  bits<5> rs;
88  bits<3> sa;
89
90  let Inst{31-26} = 0b000000;
91  let Inst{25-21} = rt;
92  let Inst{20-16} = rs;
93  let Inst{15-13} = sa;
94  let Inst{12-6}  = op;
95  let Inst{5-0}   = 0b111100;
96}
97
98class POOL32A_2RSA5B0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
99  bits<5> rt;
100  bits<5> rs;
101  bits<5> sa;
102
103  let Inst{31-26} = 0b000000;
104  let Inst{25-21} = rt;
105  let Inst{20-16} = rs;
106  let Inst{15-11} = sa;
107  let Inst{10}    = 0b0;
108  let Inst{9-0}   = op;
109}
110
111class POOL32A_2RSA4B0_FMT<string opstr, bits<11> op> : MMDSPInst<opstr> {
112  bits<5> rt;
113  bits<5> rs;
114  bits<4> sa;
115
116  let Inst{31-26} = 0b000000;
117  let Inst{25-21} = rt;
118  let Inst{20-16} = rs;
119  let Inst{15-12} = sa;
120  let Inst{11}    = 0b0;
121  let Inst{10-0}  = op;
122}
123
124class POOL32A_2RSA4OP6_FMT<string opstr, bits<6> op> : MMDSPInst<opstr> {
125  bits<5> rt;
126  bits<5> rs;
127  bits<4> sa;
128
129  let Inst{31-26} = 0b000000;
130  let Inst{25-21} = rt;
131  let Inst{20-16} = rs;
132  let Inst{15-12} = sa;
133  let Inst{11-6}  = op;
134  let Inst{5-0}   = 0b111100;
135}
136
137class POOL32A_1RIMM5AC_FMT<string opstr, bits<8> funct> : MMDSPInst<opstr> {
138  bits<5> rt;
139  bits<5> imm;
140  bits<2> ac;
141
142  let Inst{31-26} = 0b000000;
143  let Inst{25-21} = rt;
144  let Inst{20-16} = imm;
145  let Inst{15-14} = ac;
146  let Inst{13-6}  = funct;
147  let Inst{5-0}   = 0b111100;
148}
149
150class POOL32A_2RSA5_FMT<string opstr, bits<11> op> : MMDSPInst<opstr> {
151  bits<5> rt;
152  bits<5> rs;
153  bits<5> sa;
154
155  let Inst{31-26} = 0b000000;
156  let Inst{25-21} = rt;
157  let Inst{20-16} = rs;
158  let Inst{15-11} = sa;
159  let Inst{10-0}  = op;
160}
161
162class POOL32A_1RMEMB0_FMT<string opstr, bits<10> funct> : MMDSPInst<opstr> {
163  bits<5> index;
164  bits<5> base;
165  bits<5> rd;
166
167  let Inst{31-26} = 0;
168  let Inst{25-21} = index;
169  let Inst{20-16} = base;
170  let Inst{15-11} = rd;
171  let Inst{10}    = 0b0;
172  let Inst{9-0}   = funct;
173}
174
175class POOL32A_1RAC_FMT<string instr_asm, bits<8> funct> : MMDSPInst<instr_asm> {
176  bits<5> rs;
177  bits<2> ac;
178
179  let Inst{31-26} = 0;
180  let Inst{25-21} = 0;
181  let Inst{20-16} = rs;
182  let Inst{15-14} = ac;
183  let Inst{13-6}  = funct;
184  let Inst{5-0}   = 0b111100;
185}
186
187class POOL32A_1RMASK7_FMT<string opstr, bits<8> op> : MMDSPInst<opstr> {
188  bits<5> rt;
189  bits<7> mask;
190
191  let Inst{31-26} = 0b000000;
192  let Inst{25-21} = rt;
193  let Inst{20-14} = mask;
194  let Inst{13-6}  = op;
195  let Inst{5-0}   = 0b111100;
196}
197
198class POOL32A_1RIMM10_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
199  bits<5> rd;
200  bits<10> imm;
201
202  let Inst{31-26} = 0;
203  let Inst{25-16} = imm;
204  let Inst{15-11} = rd;
205  let Inst{10}    = 0;
206  let Inst{9-0}   = op;
207}
208
209class POOL32A_1RIMM8_FMT<string opstr, bits<6> op> : MMDSPInst<opstr> {
210  bits<5> rt;
211  bits<8> imm;
212
213  let Inst{31-26} = 0;
214  let Inst{25-21} = rt;
215  let Inst{20-13} = imm;
216  let Inst{12}    = 0;
217  let Inst{11-6}  = op;
218  let Inst{5-0}   = 0b111100;
219}
220
221class POOL32A_4B0SHIFT6AC4B0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
222  bits<6> shift;
223  bits<2> ac;
224
225  let Inst{31-26} = 0b000000;
226  let Inst{25-22} = 0b0000;
227  let Inst{21-16} = shift;
228  let Inst{15-14} = ac;
229  let Inst{13-10} = 0b0000;
230  let Inst{9-0}   = op;
231}
232
233class POOL32A_5B01RAC_FMT<string opstr, bits<8> op> : MMDSPInst<opstr> {
234  bits<5> rs;
235  bits<2> ac;
236
237  let Inst{31-26} = 0b000000;
238  let Inst{25-21} = 0b00000;
239  let Inst{20-16} = rs;
240  let Inst{15-14} = ac;
241  let Inst{13-6}  = op;
242  let Inst{5-0}   = 0b111100;
243}
244
245class POOL32I_IMMB0_FMT<string opstr, bits<5> op> : MMDSPInst<opstr> {
246  bits<16> offset;
247
248  let Inst{31-26} = 0b010000;
249  let Inst{25-21} = op;
250  let Inst{20-16} = 0;
251  let Inst{15-0}  = offset;
252}
253
254class POOL32A_2RBP_FMT<string opstr> : MMDSPInst<opstr> {
255  bits<5> rt;
256  bits<5> rs;
257  bits<2> bp;
258
259  let Inst{31-26} = 0;
260  let Inst{25-21} = rt;
261  let Inst{20-16} = rs;
262  let Inst{15-14} = bp;
263  let Inst{13-6}  = 0b00100010;
264  let Inst{5-0}   = 0b111100;
265}
266
267class POOL32A_2RB0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
268  bits<5> rt;
269  bits<5> rs;
270
271  let Inst{31-26} = 0;
272  let Inst{25-21} = rt;
273  let Inst{20-16} = rs;
274  let Inst{15-10} = 0;
275  let Inst{9-0}   = op;
276}
277
278class POOL32S_3RB0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
279  bits<5> rt;
280  bits<5> rs;
281  bits<5> rd;
282
283  let Inst{31-26} = 0b010110;
284  let Inst{25-21} = rt;
285  let Inst{20-16} = rs;
286  let Inst{15-11} = rd;
287  let Inst{10}    = 0b0;
288  let Inst{9-0}   = op;
289}
290
291class POOL32A_2R2B0_FMT<string opstr, bits<10> op> : MMDSPInst<opstr> {
292  bits<5> rt;
293  bits<5> rs;
294
295  let Inst{31-26} = 0;
296  let Inst{25-21} = rt;
297  let Inst{20-16} = rs;
298  let Inst{15-11} = 0;
299  let Inst{10}    = 0;
300  let Inst{9-0}   = op;
301}
302