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 fence_i(void) __attribute__ ((unused));
 172 static uint32_t fence_i(void)
 173 {
 174   return MATCH_FENCE_I;
 175 }
 176
 177 /*
 178 static uint32_t lui(unsigned int dest, uint32_t imm) __attribute__ ((unused));
 179 static uint32_t lui(unsigned int dest, uint32_t imm)
 180 {
 181   return (bits(imm, 19, 0) << 12) |
 182     (dest << 7) |
 183     MATCH_LUI;
 184 }
 185
 186 static uint32_t csrci(unsigned int csr, uint16_t imm) __attribute__ ((unused));
 187 static uint32_t csrci(unsigned int csr, uint16_t imm) {
 188   return (csr << 20) |
 189     (bits(imm, 4, 0) << 15) |
 190     MATCH_CSRRCI;
 191 }
 192
 193 static uint32_t li(unsigned int dest, uint16_t imm) __attribute__ ((unused));
 194 static uint32_t li(unsigned int dest, uint16_t imm)
 195 {
 196         return addi(dest, 0, imm);
 197 }
 198
 199 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset) __attribute__ ((unused));
 200 static uint32_t fsd(unsigned int src, unsigned int base, uint16_t offset)
 201 {
 202   return (bits(offset, 11, 5) << 25) |
 203     (bits(src, 4, 0) << 20) |
 204     (base << 15) |
 205     (bits(offset, 4, 0) << 7) |
 206     MATCH_FSD;
 207 }
 208
 209 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
 210 static uint32_t ori(unsigned int dest, unsigned int src, uint16_t imm)
 211 {
 212   return (bits(imm, 11, 0) << 20) |
 213     (src << 15) |
 214     (dest << 7) |
 215     MATCH_ORI;
 216 }
 217
 218 static uint32_t nop(void) __attribute__ ((unused));
 219 static uint32_t nop(void)
 220 {
 221   return addi(0, 0, 0);
 222 }
 223 */
 224
 225 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm) __attribute__ ((unused));
 226 static uint32_t xori(unsigned int dest, unsigned int src, uint16_t imm)
 227 {
 228   return (bits(imm, 11, 0) << 20) |
 229     (src << 15) |
 230     (dest << 7) |
 231     MATCH_XORI;
 232 }
 233
 234 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt) __attribute__ ((unused));
 235 static uint32_t srli(unsigned int dest, unsigned int src, uint8_t shamt)
 236 {
 237         return (bits(shamt, 4, 0) << 20) |
 238                 (src << 15) |
 239                 (dest << 7) |
 240                 MATCH_SRLI;
 241 }