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   return (value >> lo) & ((1 << (hi+1-lo)) - 1);
  10 }
  11
  12 static uint32_t bit(uint32_t value, unsigned int b) {
  13   return (value >> b) & 1;
  14 }
  15
  16 static uint32_t jal(unsigned int rd, uint32_t imm) __attribute__ ((unused));
  17 static uint32_t jal(unsigned int rd, uint32_t imm) {
  18   return (bit(imm, 20) << 31) |
  19     (bits(imm, 10, 1) << 21) |
  20     (bit(imm, 11) << 20) |
  21     (bits(imm, 19, 12) << 12) |
  22     (rd << 7) |
  23     MATCH_JAL;
  24 }
  25
  26 static uint32_t csrsi(unsigned int csr, uint16_t imm) __attribute__ ((unused));
  27 static uint32_t csrsi(unsigned int csr, uint16_t imm) {
  28   return (csr << 20) |
  29     (bits(imm, 4, 0) << 15) |
  30     MATCH_CSRRSI;
  31 }
  32
  33 static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
  34 static uint32_t sw(unsigned int src, unsigned int base, uint16_t offset)
  35 {
  36   return (bits(offset, 11, 5) << 25) |
  37     (src << 20) |
  38     (base << 15) |
  39     (bits(offset, 4, 0) << 7) |
  40     MATCH_SW;
  41 }
  42
  43 static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
  44 static uint32_t sd(unsigned int src, unsigned int base, uint16_t offset)
  45 {
  46   return (bits(offset, 11, 5) << 25) |
  47     (src << 20) |
  48     (base << 15) |
  49     (bits(offset, 4, 0) << 7) |
  50     MATCH_SD;
  51 }
  52
  53 static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
  54 static uint32_t sh(unsigned int src, unsigned int base, uint16_t offset)
  55 {
  56   return (bits(offset, 11, 5) << 25) |
  57     (src << 20) |
  58     (base << 15) |
  59     (bits(offset, 4, 0) << 7) |
  60     MATCH_SH;
  61 }
  62
  63 static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
  64 static uint32_t sb(unsigned int src, unsigned int base, uint16_t offset)
  65 {
  66   return (bits(offset, 11, 5) << 25) |
  67     (src << 20) |
  68     (base << 15) |
  69     (bits(offset, 4, 0) << 7) |
  70     MATCH_SB;
  71 }
  72
  73 static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
  74 static uint32_t ld(unsigned int rd, unsigned int base, uint16_t offset)
  75 {
  76   return (bits(offset, 11, 0) << 20) |
  77     (base << 15) |
  78     (bits(rd, 4, 0) << 7) |
  79     MATCH_LD;
  80 }
  81
  82 static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
  83 static uint32_t lw(unsigned int rd, unsigned int base, uint16_t offset)
  84 {
  85   return (bits(offset, 11, 0) << 20) |
  86     (base << 15) |
  87     (bits(rd, 4, 0) << 7) |
  88     MATCH_LW;
  89 }
  90
  91 static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
  92 static uint32_t lh(unsigned int rd, unsigned int base, uint16_t offset)
  93 {
  94   return (bits(offset, 11, 0) << 20) |
  95     (base << 15) |
  96     (bits(rd, 4, 0) << 7) |
  97     MATCH_LH;
  98 }
  99
 100 static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset) __attribute__ ((unused));
 101 static uint32_t lb(unsigned int rd, unsigned int base, uint16_t offset)
 102 {
 103   return (bits(offset, 11, 0) << 20) |
 104     (base << 15) |
 105     (bits(rd, 4, 0) << 7) |
 106     MATCH_LB;
 107 }
 108
 109 static uint32_t csrw(unsigned int source, unsigned int csr) __attribute__ ((unused));
 110 static uint32_t csrw(unsigned int source, unsigned int csr) {
 111   return (csr << 20) | (source << 15) | MATCH_CSRRW;
 112 }
 113
 114 static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
 115 static uint32_t addi(unsigned int dest, unsigned int src, uint16_t imm)
 116 {
 117   return (bits(imm, 11, 0) << 20) |
 118     (src << 15) |
 119     (dest << 7) |
 120     MATCH_ADDI;
 121 }
 122
 123 static uint32_t csrr(unsigned int rd, unsigned int csr) __attribute__ ((unused));
 124 static uint32_t csrr(unsigned int rd, unsigned int csr) {
 125   return (csr << 20) | (rd << 7) | MATCH_CSRRS;
 126 }
 127
 128 static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
 129 static uint32_t fsw(unsigned int src, unsigned int base, uint16_t offset)
 130 {
 131   return (bits(offset, 11, 5) << 25) |
 132     (bits(src, 4, 0) << 20) |
 133     (base << 15) |
 134     (bits(offset, 4, 0) << 7) |
 135     MATCH_FSW;
 136 }
 137
 138 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
 139 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
 140 {
 141   return (bits(offset, 11, 5) << 25) |
 142     (bits(src, 4, 0) << 20) |
 143     (base << 15) |
 144     (bits(offset, 4, 0) << 7) |
 145     MATCH_FSD;
 146 }
 147
 148 static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
 149 static uint32_t flw(unsigned int dest, unsigned int base, uint16_t offset)
 150 {
 151   return (bits(offset, 11, 0) << 20) |
 152     (base << 15) |
 153     (bits(dest, 4, 0) << 7) |
 154     MATCH_FLW;
 155 }
 156
 157 static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset) __attribute__ ((unused));
 158 static uint32_t fld(unsigned int dest, unsigned int base, uint16_t offset)
 159 {
 160   return (bits(offset, 11, 0) << 20) |
 161     (base << 15) |
 162     (bits(dest, 4, 0) << 7) |
 163     MATCH_FLD;
 164 }
 165
 166 static uint32_t ebreak(void) __attribute__ ((unused));
 167 static uint32_t ebreak(void) { return MATCH_EBREAK; }
 168 static uint32_t ebreak_c(void) __attribute__ ((unused));
 169 static uint32_t ebreak_c(void) { return MATCH_C_EBREAK; }
 170
 171 static uint32_t dret(void) __attribute__ ((unused));
 172 static uint32_t dret(void) { return MATCH_DRET; }
 173
 174 static uint32_t fence_i(void) __attribute__ ((unused));
 175 static uint32_t fence_i(void)
 176 {
 177   return MATCH_FENCE_I;
 178 }
 179
 180 /*
 181 static uint32_t lui(unsigned int dest, uint32_t imm) __attribute__ ((unused));
 182 static uint32_t lui(unsigned int dest, uint32_t imm)
 183 {
 184   return (bits(imm, 19, 0) << 12) |
 185     (dest << 7) |
 186     MATCH_LUI;
 187 }
 188
 189 static uint32_t csrci(unsigned int csr, uint16_t imm) __attribute__ ((unused));
 190 static uint32_t csrci(unsigned int csr, uint16_t imm) {
 191   return (csr << 20) |
 192     (bits(imm, 4, 0) << 15) |
 193     MATCH_CSRRCI;
 194 }
 195
 196 static uint32_t li(unsigned int dest, uint16_t imm) __attribute__ ((unused));
 197 static uint32_t li(unsigned int dest, uint16_t imm)
 198 {
 199         return addi(dest, 0, imm);
 200 }
 201
 202 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
 203 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
 204 {
 205   return (bits(offset, 11, 5) << 25) |
 206     (bits(src, 4, 0) << 20) |
 207     (base << 15) |
 208     (bits(offset, 4, 0) << 7) |
 209     MATCH_FSD;
 210 }
 211
 212 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
 213 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm)
 214 {
 215   return (bits(imm, 11, 0) << 20) |
 216     (src << 15) |
 217     (dest << 7) |
 218     MATCH_ORI;
 219 }
 220
 221 static uint32_t nop(void) __attribute__ ((unused));
 222 static uint32_t nop(void)
 223 {
 224   return addi(0, 0, 0);
 225 }
 226 */
 227
 228 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
 229 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm)
 230 {
 231   return (bits(imm, 11, 0) << 20) |
 232     (src << 15) |
 233     (dest << 7) |
 234     MATCH_XORI;
 235 }
 236
 237 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt) __attribute__ ((unused));
 238 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt)
 239 {
 240         return (bits(shamt, 4, 0) << 20) |
 241                 (src << 15) |
 242                 (dest << 7) |
 243                 MATCH_SRLI;
 244 }