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Add RISC-V support.
[openocd.git] / src / target / riscv / opcodes.h
1 #include "encoding.h"
2
3 #define ZERO 0
4 #define T0 5
5 #define S0 8
6 #define S1 9
7
8 static uint32_t bits(uint32_t value, unsigned int hi, unsigned int lo)
9 {
10 return (value >> lo) & ((1 << (hi+1-lo)) - 1);
11 }
12
13 static uint32_t bit(uint32_t value, unsigned int b)
14 {
15 return (value >> b) & 1;
16 }
17
18 static uint32_t jal(unsigned int rd, uint32_t imm) __attribute__ ((unused));
19 static uint32_t jal(unsigned int rd, uint32_t imm)
20 {
21 return (bit(imm, 20) << 31) |
22 (bits(imm, 10, 1) << 21) |
23 (bit(imm, 11) << 20) |
24 (bits(imm, 19, 12) << 12) |
25 (rd << 7) |
26 MATCH_JAL;
27 }
28
29 static uint32_t csrsi(unsigned int csr, uint16_t imm) __attribute__ ((unused));
30 static uint32_t csrsi(unsigned int csr, uint16_t imm)
31 {
32 return (csr << 20) |
33 (bits(imm, 4, 0) << 15) |
34 MATCH_CSRRSI;
35 }
36
37 static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
38 static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset)
39 {
40 return (bits(offset, 11, 5) << 25) |
41 (src << 20) |
42 (base << 15) |
43 (bits(offset, 4, 0) << 7) |
44 MATCH_SW;
45 }
46
47 static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
48 static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset)
49 {
50 return (bits(offset, 11, 5) << 25) |
51 (src << 20) |
52 (base << 15) |
53 (bits(offset, 4, 0) << 7) |
54 MATCH_SD;
55 }
56
57 static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
58 static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset)
59 {
60 return (bits(offset, 11, 5) << 25) |
61 (src << 20) |
62 (base << 15) |
63 (bits(offset, 4, 0) << 7) |
64 MATCH_SH;
65 }
66
67 static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
68 static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset)
69 {
70 return (bits(offset, 11, 5) << 25) |
71 (src << 20) |
72 (base << 15) |
73 (bits(offset, 4, 0) << 7) |
74 MATCH_SB;
75 }
76
77 static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
78 static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset)
79 {
80 return (bits(offset, 11, 0) << 20) |
81 (base << 15) |
82 (bits(rd, 4, 0) << 7) |
83 MATCH_LD;
84 }
85
86 static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
87 static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset)
88 {
89 return (bits(offset, 11, 0) << 20) |
90 (base << 15) |
91 (bits(rd, 4, 0) << 7) |
92 MATCH_LW;
93 }
94
95 static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
96 static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset)
97 {
98 return (bits(offset, 11, 0) << 20) |
99 (base << 15) |
100 (bits(rd, 4, 0) << 7) |
101 MATCH_LH;
102 }
103
104 static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
105 static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset)
106 {
107 return (bits(offset, 11, 0) << 20) |
108 (base << 15) |
109 (bits(rd, 4, 0) << 7) |
110 MATCH_LB;
111 }
112
113 static uint32_t csrw(unsigned int source, unsigned int csr) __attribute__ ((unused));
114 static uint32_t csrw(unsigned int source, unsigned int csr)
115 {
116 return (csr << 20) | (source << 15) | MATCH_CSRRW;
117 }
118
119 static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
120 static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm)
121 {
122 return (bits(imm, 11, 0) << 20) |
123 (src << 15) |
124 (dest << 7) |
125 MATCH_ADDI;
126 }
127
128 static uint32_t csrr(unsigned int rd, unsigned int csr) __attribute__ ((unused));
129 static uint32_t csrr(unsigned int rd, unsigned int csr)
130 {
131 return (csr << 20) | (rd << 7) | MATCH_CSRRS;
132 }
133
134 static uint32_t csrrs(unsigned int rd, unsigned int rs, unsigned int csr) __attribute__ ((unused));
135 static uint32_t csrrs(unsigned int rd, unsigned int rs, unsigned int csr)
136 {
137 return (csr << 20) | (rs << 15) | (rd << 7) | MATCH_CSRRS;
138 }
139
140 static uint32_t csrrw(unsigned int rd, unsigned int rs, unsigned int csr) __attribute__ ((unused));
141 static uint32_t csrrw(unsigned int rd, unsigned int rs, unsigned int csr)
142 {
143 return (csr << 20) | (rs << 15) | (rd << 7) | MATCH_CSRRW;
144 }
145
146 static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
147 static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset)
148 {
149 return (bits(offset, 11, 5) << 25) |
150 (bits(src, 4, 0) << 20) |
151 (base << 15) |
152 (bits(offset, 4, 0) << 7) |
153 MATCH_FSW;
154 }
155
156 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
157 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
158 {
159 return (bits(offset, 11, 5) << 25) |
160 (bits(src, 4, 0) << 20) |
161 (base << 15) |
162 (bits(offset, 4, 0) << 7) |
163 MATCH_FSD;
164 }
165
166 static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
167 static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset)
168 {
169 return (bits(offset, 11, 0) << 20) |
170 (base << 15) |
171 (bits(dest, 4, 0) << 7) |
172 MATCH_FLW;
173 }
174
175 static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
176 static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset)
177 {
178 return (bits(offset, 11, 0) << 20) |
179 (base << 15) |
180 (bits(dest, 4, 0) << 7) |
181 MATCH_FLD;
182 }
183
184 static uint32_t fmv_x_w(unsigned dest, unsigned src) __attribute__ ((unused));
185 static uint32_t fmv_x_w(unsigned dest, unsigned src)
186 {
187 return src << 15 |
188 dest << 7 |
189 MATCH_FMV_X_W;
190 }
191
192 static uint32_t fmv_x_d(unsigned dest, unsigned src) __attribute__ ((unused));
193 static uint32_t fmv_x_d(unsigned dest, unsigned src)
194 {
195 return src << 15 |
196 dest << 7 |
197 MATCH_FMV_X_D;
198 }
199
200 static uint32_t fmv_w_x(unsigned dest, unsigned src) __attribute__ ((unused));
201 static uint32_t fmv_w_x(unsigned dest, unsigned src)
202 {
203 return src << 15 |
204 dest << 7 |
205 MATCH_FMV_W_X;
206 }
207
208 static uint32_t fmv_d_x(unsigned dest, unsigned src) __attribute__ ((unused));
209 static uint32_t fmv_d_x(unsigned dest, unsigned src)
210 {
211 return src << 15 |
212 dest << 7 |
213 MATCH_FMV_D_X;
214 }
215
216 static uint32_t ebreak(void) __attribute__ ((unused));
217 static uint32_t ebreak(void)
218 {
219 return MATCH_EBREAK;
220 }
221 static uint32_t ebreak_c(void) __attribute__ ((unused));
222 static uint32_t ebreak_c(void)
223 {
224 return MATCH_C_EBREAK;
225 }
226
227 static uint32_t fence_i(void) __attribute__ ((unused));
228 static uint32_t fence_i(void)
229 {
230 return MATCH_FENCE_I;
231 }
232
233 static uint32_t lui(unsigned int dest, uint32_t imm) __attribute__ ((unused));
234 static uint32_t lui(unsigned int dest, uint32_t imm)
235 {
236 return (bits(imm, 19, 0) << 12) |
237 (dest << 7) |
238 MATCH_LUI;
239 }
240
241 /*
242 static uint32_t csrci(unsigned int csr, uint16_t imm) __attribute__ ((unused));
243 static uint32_t csrci(unsigned int csr, uint16_t imm)
244 {
245 return (csr << 20) |
246 (bits(imm, 4, 0) << 15) |
247 MATCH_CSRRCI;
248 }
249
250 static uint32_t li(unsigned int dest, uint16_t imm) __attribute__ ((unused));
251 static uint32_t li(unsigned int dest, uint16_t imm)
252 {
253 return addi(dest, 0, imm);
254 }
255
256 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
257 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
258 {
259 return (bits(offset, 11, 5) << 25) |
260 (bits(src, 4, 0) << 20) |
261 (base << 15) |
262 (bits(offset, 4, 0) << 7) |
263 MATCH_FSD;
264 }
265
266 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
267 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm)
268 {
269 return (bits(imm, 11, 0) << 20) |
270 (src << 15) |
271 (dest << 7) |
272 MATCH_ORI;
273 }
274
275 static uint32_t nop(void) __attribute__ ((unused));
276 static uint32_t nop(void)
277 {
278 return addi(0, 0, 0);
279 }
280 */
281
282 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
283 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm)
284 {
285 return (bits(imm, 11, 0) << 20) |
286 (src << 15) |
287 (dest << 7) |
288 MATCH_XORI;
289 }
290
291 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt) __attribute__ ((unused));
292 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt)
293 {
294 return (bits(shamt, 4, 0) << 20) |
295 (src << 15) |
296 (dest << 7) |
297 MATCH_SRLI;
298 }
299
300 static uint32_t fence(void) __attribute__((unused));
301 static uint32_t fence(void)
302 {
303 return MATCH_FENCE;
304 }
305
306 static uint32_t auipc(unsigned int dest) __attribute__((unused));
307 static uint32_t auipc(unsigned int dest)
308 {
309 return MATCH_AUIPC | (dest << 7);
310 }
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