sdcc/support/sdbinutils/include/opcode/visium.h

   1 /* Opcode table header for Visium.
   2
   3    Copyright (C) 2003-2022 Free Software Foundation, Inc.
   4
   5    This file is part of GDB, GAS, and GNU binutils.
   6
   7    GDB, GAS and the GNU binutils are free software; you can redistribute
   8    them and/or modify them under the terms of the GNU General Public
   9    License as published by the Free Software Foundation; either version 3,
  10    or (at your option) any later version.
  11
  12    GDB, GAS, and the GNU binutils are distributed in the hope that they
  13    will be useful, but WITHOUT ANY WARRANTY; without even the implied
  14    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  15    the GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this file; see the file COPYING3.  If not, write to the Free
  19    Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 enum visium_opcode_arch_val
  23 {
  24   VISIUM_OPCODE_ARCH_DEF = 0,
  25   VISIUM_OPCODE_ARCH_GR5,
  26   VISIUM_OPCODE_ARCH_GR6,
  27   VISIUM_OPCODE_ARCH_BAD
  28 };
  29
  30 /* The highest architecture in the table.  */
  31 #define VISIUM_OPCODE_ARCH_MAX (VISIUM_OPCODE_ARCH_BAD - 1)
  32
  33 /* Given an enum visium_opcode_arch_val, return the bitmask to use in
  34    insn encoding/decoding.  */
  35 #define VISIUM_OPCODE_ARCH_MASK(arch) (1 << (arch))
  36
  37 /* Some defines to make life easy.  */
  38 #define MASK_DEF VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_DEF)
  39 #define MASK_GR5 VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_GR5)
  40 #define MASK_GR6 VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_GR6)
  41
  42 /* Bit masks of architectures supporting the insn.  */
  43 #define def (MASK_DEF | MASK_GR5 | MASK_GR6)
  44 #define gr5 (MASK_GR5 | MASK_GR6)
  45 #define gr6 (MASK_GR6)
  46
  47 /* The condition code field is not used (zero) for most instructions.
  48    BRR and BRA make normal use of it. Floating point instructions use
  49    it as a sub-opcode.  */
  50 #define CC_MASK (0xf << 27)
  51
  52 /* It seems a shame not to use these bits in a class 0 instruction,
  53    since they could be used to extend the range of the branch.  */
  54 #define CLASS0_UNUSED_MASK (0x1f << 16)
  55
  56 /* For class 1 instructions the following bit is unused.  */
  57 #define CLASS1_UNUSED_MASK (1 << 9)
  58
  59 /* For class 1 instructions this field gives the index for a write
  60    instruction, the specific operation for an EAM instruction, or
  61    the floating point destination register for a floating point
  62    instruction.  */
  63 #define CLASS1_INDEX_MASK (0x1f << 10)
  64
  65 /* For class 3 instructions the following field gives the destination
  66    general register.  */
  67 #define CLASS3_DEST_MASK (0x1f << 10)
  68
  69 /* For class 1 and class 3 instructions the following bit selects an
  70    EAM write/read rather than a memory write/read.  */
  71 #define EAM_SELECT_MASK (1 << 15)
  72
  73 /* Floating point instructions are distinguished from general EAM
  74    instructions by the following bit.  */
  75 #define FP_SELECT_MASK (1 << 3)
  76
  77 /* For both class 1 and class 3 the following fields give, where
  78    appropriate the srcA and srcB registers whether floating point
  79    or general.  */
  80 #define SRCA_MASK (0x1f << 16)
  81 #define SRCB_MASK (0x1f << 4)
  82
  83 /* The class 3 interrupt bit. It turns a BRA into a SYS1, and an
  84    RFLAG into a SYS2. This bit should not be set in the user's
  85    class 3 instructions. This bit is also used in class 3
  86    to distinguish between floating point and other EAM operations.
  87    (see FP_SELECT_MASK).  */
  88 #define CLASS3_INT (1 << 3)
  89
  90 /* Class 3 shift instructions use this bit to indicate that the
  91    srcB field is a 5 bit immediate shift count rather than a
  92    register number.  */
  93 #define CLASS3_SOURCEB_IMMED (1 << 9)
  94
  95 #define BMD 0x02630004
  96 #define BMI 0x82230004
  97 #define DSI 0x82800004
  98 #define ENI 0x02a00004
  99 #define RFI 0x82fe01d4
 100
 101 struct reg_entry
 102 {
 103   const char *name;
 104   unsigned char code;
 105 };
 106
 107 static const struct reg_entry gen_reg_table[] ATTRIBUTE_UNUSED =
 108 {
 109   {"fp", 0x16},
 110   {"r0", 0x0},
 111   {"r1", 0x1},
 112   {"r10", 0xA},
 113   {"r11", 0xB},
 114   {"r12", 0xC},
 115   {"r13", 0xD},
 116   {"r14", 0xE},
 117   {"r15", 0xF},
 118   {"r16", 0x10},
 119   {"r17", 0x11},
 120   {"r18", 0x12},
 121   {"r19", 0x13},
 122   {"r2", 0x2},
 123   {"r20", 0x14},
 124   {"r21", 0x15},
 125   {"r22", 0x16},
 126   {"r23", 0x17},
 127   {"r24", 0x18},
 128   {"r25", 0x19},
 129   {"r26", 0x1a},
 130   {"r27", 0x1b},
 131   {"r28", 0x1c},
 132   {"r29", 0x1d},
 133   {"r3", 0x3},
 134   {"r30", 0x1e},
 135   {"r31", 0x1f},
 136   {"r4", 0x4},
 137   {"r5", 0x5},
 138   {"r6", 0x6},
 139   {"r7", 0x7},
 140   {"r8", 0x8},
 141   {"r9", 0x9},
 142   {"sp", 0x17},
 143 };
 144
 145 static const struct reg_entry fp_reg_table[] ATTRIBUTE_UNUSED =
 146 {
 147   {"f0", 0x0},
 148   {"f1", 0x1},
 149   {"f10", 0xa},
 150   {"f11", 0xb},
 151   {"f12", 0xc},
 152   {"f13", 0xd},
 153   {"f14", 0xe},
 154   {"f15", 0xf},
 155   {"f2", 0x2},
 156   {"f3", 0x3},
 157   {"f4", 0x4},
 158   {"f5", 0x5},
 159   {"f6", 0x6},
 160   {"f7", 0x7},
 161   {"f8", 0x8},
 162   {"f9", 0x9},
 163 };
 164
 165 static const struct cc_entry
 166 {
 167   const char *name;
 168   int code;
 169 } cc_table [] ATTRIBUTE_UNUSED =
 170 {
 171   {"cc", 6},
 172   {"cs", 2},
 173   {"eq", 1},
 174   {"fa", 0},
 175   {"ge", 9},
 176   {"gt", 10},
 177   {"hi", 11},
 178   {"le", 12},
 179   {"ls", 13},
 180   {"lt", 14},
 181   {"nc", 8},
 182   {"ne", 5},
 183   {"ns", 4},
 184   {"oc", 7},
 185   {"os", 3},
 186   {"tr", 15},
 187 };
 188
 189 enum addressing_mode
 190 {
 191   mode_d,       /* register := */
 192   mode_a,       /* op= register */
 193   mode_da,      /* register := register */
 194   mode_ab,      /* register * register */
 195   mode_dab,     /* register := register * register */
 196   mode_iab,     /* 5-bit immediate * register * register */
 197   mode_0ab,     /* zero * register * register */
 198   mode_da0,     /* register := register * zero */
 199   mode_cad,     /* condition * register * register */
 200   mode_das,     /* register := register * 5-bit immed/register shift count */
 201   mode_di,      /* register := 5-bit immediate */
 202   mode_ir,      /* 5-bit immediate * register */
 203   mode_ai,      /* register 16-bit unsigned immediate */
 204   mode_i,       /* 16-bit unsigned immediate */
 205   mode_bax,     /* register * register * 5-bit immediate */
 206   mode_dax,     /* register := register * 5-bit immediate */
 207   mode_s,       /* special mode */
 208   mode_sr,      /* special mode with register */
 209   mode_ci,      /* condition * 16-bit signed word displacement */
 210   mode_fdab,    /* float := float * float */
 211   mode_ifdab,   /* fpinst: 4-bit immediate * float * float * float */
 212   mode_idfab,   /* fpuread: 4-bit immediate * register * float * float */
 213   mode_fda,     /* float := float */
 214   mode_fdra,    /* float := register */
 215   mode_rdfab,   /* register := float * float */
 216   mode_rdfa,    /* register := float */
 217   mode_rrr,     /* 3 register sources and destinations (block move) */
 218 };
 219
 220 #define class0 (0<<25)
 221 #define class1 (1<<25)
 222 #define class2 (2<<25)
 223 #define class3 (3<<25)
 224
 225 static const struct opcode_entry
 226 {
 227   const char *mnem;
 228   enum addressing_mode mode;
 229   unsigned code;
 230   char flags;
 231 }
 232 opcode_table[] ATTRIBUTE_UNUSED =
 233 {
 234   { "adc.b",    mode_dab,  class3|(1<<21)|(1), def },
 235   { "adc.l",    mode_dab,  class3|(1<<21)|(4), def },
 236   { "adc.w",    mode_dab,  class3|(1<<21)|(2), def },
 237   { "add.b",    mode_dab,  class3|(0<<21)|(1), def },
 238   { "add.l",    mode_dab,  class3|(0<<21)|(4), def },
 239   { "add.w",    mode_dab,  class3|(0<<21)|(2), def },
 240   { "addi",     mode_ai,   class2, def },
 241   { "and.b",    mode_dab,  class3|(10<<21)|(1), def},
 242   { "and.l",    mode_dab,  class3|(10<<21)|(4), def },
 243   { "and.w",    mode_dab,  class3|(10<<21)|(2), def },
 244   { "asl.b",    mode_das,  class3|(7<<21)|(1), def },
 245   { "asl.l",    mode_das,  class3|(7<<21)|(4), def },
 246   { "asl.w",    mode_das,  class3|(7<<21)|(2), def },
 247   { "asld",     mode_a,    class1|(15<<21)|(1<<15)|(11<<10)|(4), def },
 248   { "asr.b",    mode_das,  class3|(5<<21)|(1), def },
 249   { "asr.l",    mode_das,  class3|(5<<21)|(4), def },
 250   { "asr.w",    mode_das,  class3|(5<<21)|(2), def },
 251   { "asrd",     mode_a,    class1|(15<<21)|(1<<15)|(9<<10)|(4), def },
 252   { "bmd",      mode_rrr,  class1|(3<<21)|(3<<16)|(4), gr6 },
 253   { "bmi",      mode_rrr,  class1|(1<<21)|(3<<16)|(4), gr6 },
 254   { "bra",      mode_cad,  class3|(12<<21)|(4), def },
 255   { "brr",      mode_ci,   class0, def },
 256   { "cmp.b",    mode_0ab,  class3|(2<<21)|(1), def },
 257   { "cmp.l",    mode_0ab,  class3|(2<<21)|(4), def },
 258   { "cmp.w",    mode_0ab,  class3|(2<<21)|(2), def },
 259   { "cmpc.b",   mode_0ab,  class3|(3<<21)|(1), def },
 260   { "cmpc.l",   mode_0ab,  class3|(3<<21)|(4), def },
 261   { "cmpc.w",   mode_0ab,  class3|(3<<21)|(2), def },
 262   { "divds",    mode_a,    class1|(15<<21)|(1<<15)|(6<<10)|(4), def },
 263   { "divdu",    mode_a,    class1|(15<<21)|(1<<15)|(7<<10)|(4), def },
 264   { "divs",     mode_a,    class1|(15<<21)|(1<<15)|(2<<10)|(4), def },
 265   { "divu",     mode_a,    class1|(15<<21)|(1<<15)|(3<<10)|(4), def },
 266   { "dsi",      mode_s,    class1|(4<<21)|(4), def },
 267   { "eamread",  mode_di,   class3|(15<<21)|(1<<15)|(1<<9)|(4), def },
 268   { "eamwrite", mode_iab,  class1|(15<<21)|(1<<15)|(4), def },
 269   { "eni",      mode_s,    class1|(5<<21)|(4), def },
 270   { "extb.b",   mode_da,   class3|(14<<21)|(1), def },
 271   { "extb.l",   mode_da,   class3|(14<<21)|(4), def },
 272   { "extb.w",   mode_da,   class3|(14<<21)|(2), def },
 273   { "extw.l",   mode_da,   class3|(4<<21)|(4), def },
 274   { "extw.w",   mode_da,   class3|(4<<21)|(2), def },
 275   { "fabs",     mode_fda,  class1|(7<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 276   { "fadd",     mode_fdab, class1|(1<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 277   { "fcmp",     mode_rdfab,class3|(10<<27)|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
 278   { "fcmpe",    mode_rdfab,class3|(11<<27)|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
 279   { "fdiv",     mode_fdab, class1|(4<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 280   { "fload",    mode_fdra, class1|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 281   { "fmove",    mode_fda,  class1|(12<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5},
 282   { "fmult",    mode_fdab, class1|(3<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 283   { "fneg",     mode_fda,  class1|(6<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 284   { "fpinst",   mode_ifdab,class1|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 285   { "fpuread",  mode_idfab,class3|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
 286   { "fsqrt",    mode_fda,  class1|(5<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 287   { "fstore",   mode_rdfa, class3|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
 288   { "fsub",     mode_fdab, class1|(2<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 289   { "ftoi",     mode_fda,  class1|(8<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 290   { "itof",     mode_fda,  class1|(9<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
 291   { "lsr.b",    mode_das,  class3|(6<<21)|(1), def },
 292   { "lsr.l",    mode_das,  class3|(6<<21)|(4), def },
 293   { "lsr.w",    mode_das,  class3|(6<<21)|(2), def },
 294   { "lsrd",     mode_a,    class1|(15<<21)|(1<<15)|(10<<10)|(4), def },
 295   { "move.b",   mode_da0,  class3|(9<<21)|(1), def },
 296   { "move.l",   mode_da0,  class3|(9<<21)|(4), def },
 297   { "move.w",   mode_da0,  class3|(9<<21)|(2), def },
 298   { "movil",    mode_ai,   class2|(4<<21), def },
 299   { "moviq",    mode_ai,   class2|(6<<21), def },
 300   { "moviu",    mode_ai,   class2|(5<<21), def },
 301   { "mults",    mode_ab,   class1|(15<<21)|(1<<15)|(0<<10)|(4), def },
 302   { "multu",    mode_ab,   class1|(15<<21)|(1<<15)|(1<<10)|(4), def },
 303   { "nop",      mode_s,    class0, def },
 304   { "not.b",    mode_da,   class3|(11<<21)|(1), def },
 305   { "not.l",    mode_da,   class3|(11<<21)|(4), def },
 306   { "not.w",    mode_da,   class3|(11<<21)|(2), def },
 307   { "or.b",     mode_dab,  class3|(9<<21)|(1), def },
 308   { "or.l",     mode_dab,  class3|(9<<21)|(4), def },
 309   { "or.w",     mode_dab,  class3|(9<<21)|(2), def },
 310   { "read.b",   mode_dax,  class3|(15<<21)|(1<<9)|(1), def },
 311   { "read.l",   mode_dax,  class3|(15<<21)|(1<<9)|(4), def },
 312   { "read.w",   mode_dax,  class3|(15<<21)|(1<<9)|(2), def },
 313   { "readmda",  mode_d,    class3|(15<<21)|(1<<15)|(1<<9)|(4), def },
 314   { "readmdb",  mode_d,    class3|(15<<21)|(1<<15)|(1<<9)|(1<<4)|(4), def },
 315   { "readmdc",  mode_d,    class3|(15<<21)|(1<<15)|(1<<9)|(2<<4)|(4), def },
 316   { "rfi",      mode_s,    class1|(7<<21)|(30<<16)|(29<<4)|(4), def },
 317   { "rflag",    mode_d,    class3|(13<<21)|(4), def },
 318   { "stop",     mode_ir,   class1|(0<<21)|(4), def },
 319   { "sub.b",    mode_dab,  class3|(2<<21)|(1), def },
 320   { "sub.l",    mode_dab,  class3|(2<<21)|(4), def },
 321   { "sub.w",    mode_dab,  class3|(2<<21)|(2), def },
 322   { "subc.b",   mode_dab,  class3|(3<<21)|(1), def },
 323   { "subc.l",   mode_dab,  class3|(3<<21)|(4), def },
 324   { "subc.w",   mode_dab,  class3|(3<<21)|(2), def },
 325   { "subi",     mode_ai,   class2|(2<<21), def },
 326   { "trace",    mode_ir,   class1|(13<<21), def },
 327   { "write.b",  mode_bax,  class1|(15<<21)|(1), def },
 328   { "write.l",  mode_bax,  class1|(15<<21)|(4), def },
 329   { "write.w",  mode_bax,  class1|(15<<21)|(2), def },
 330   { "writemd",  mode_ab,   class1|(15<<21)|(1<<15)|(4<<10)|(4), def },
 331   { "writemdc", mode_a,    class1|(15<<21)|(1<<15)|(5<<10)|(4), def },
 332   { "wrtl",     mode_i,    class2|(8<<21), gr6 },
 333   { "wrtu",     mode_i,    class2|(9<<21), gr6 },
 334   { "xor.b",    mode_dab,  class3|(8<<21)|(1), def },
 335   { "xor.l",    mode_dab,  class3|(8<<21)|(4), def },
 336   { "xor.w",    mode_dab,  class3|(8<<21)|(2), def },
 337 };
 338