/* Opcode table header for Visium.

/* Opcode table header for Visium.

Copyright (C) 2003-2024 Free Software Foundation, Inc.

This file is part of GDB, GAS, and GNU binutils.

GDB, GAS and the GNU binutils are free software; you can redistribute
them and/or modify them under the terms of the GNU General Public
License as published by the Free Software Foundation; either version 3,
or (at your option) any later version.

GDB, GAS, and the GNU binutils are distributed in the hope that they
will be useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this file; see the file COPYING3. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */

enum visium_opcode_arch_val
{
VISIUM_OPCODE_ARCH_DEF = 0,
VISIUM_OPCODE_ARCH_GR5,
VISIUM_OPCODE_ARCH_GR6,
VISIUM_OPCODE_ARCH_BAD
};

/* The highest architecture in the table. */
#define VISIUM_OPCODE_ARCH_MAX (VISIUM_OPCODE_ARCH_BAD - 1)

/* Given an enum visium_opcode_arch_val, return the bitmask to use in
insn encoding/decoding. */
#define VISIUM_OPCODE_ARCH_MASK(arch) (1 << (arch))

/* Some defines to make life easy. */
#define MASK_DEF VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_DEF)
#define MASK_GR5 VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_GR5)
#define MASK_GR6 VISIUM_OPCODE_ARCH_MASK (VISIUM_OPCODE_ARCH_GR6)

/* Bit masks of architectures supporting the insn. */
#define def (MASK_DEF | MASK_GR5 | MASK_GR6)
#define gr5 (MASK_GR5 | MASK_GR6)
#define gr6 (MASK_GR6)

/* The condition code field is not used (zero) for most instructions.
BRR and BRA make normal use of it. Floating point instructions use
it as a sub-opcode. */
#define CC_MASK (0xf << 27)

/* It seems a shame not to use these bits in a class 0 instruction,
since they could be used to extend the range of the branch. */
#define CLASS0_UNUSED_MASK (0x1f << 16)

/* For class 1 instructions the following bit is unused. */
#define CLASS1_UNUSED_MASK (1 << 9)

/* For class 1 instructions this field gives the index for a write
instruction, the specific operation for an EAM instruction, or
the floating point destination register for a floating point
instruction. */
#define CLASS1_INDEX_MASK (0x1f << 10)

/* For class 3 instructions the following field gives the destination
general register. */
#define CLASS3_DEST_MASK (0x1f << 10)

/* For class 1 and class 3 instructions the following bit selects an
EAM write/read rather than a memory write/read. */
#define EAM_SELECT_MASK (1 << 15)

/* Floating point instructions are distinguished from general EAM
instructions by the following bit. */
#define FP_SELECT_MASK (1 << 3)

/* For both class 1 and class 3 the following fields give, where
appropriate the srcA and srcB registers whether floating point
or general. */
#define SRCA_MASK (0x1f << 16)
#define SRCB_MASK (0x1f << 4)

/* The class 3 interrupt bit. It turns a BRA into a SYS1, and an
RFLAG into a SYS2. This bit should not be set in the user's
class 3 instructions. This bit is also used in class 3
to distinguish between floating point and other EAM operations.
(see FP_SELECT_MASK). */
#define CLASS3_INT (1 << 3)

/* Class 3 shift instructions use this bit to indicate that the
srcB field is a 5 bit immediate shift count rather than a
register number. */
#define CLASS3_SOURCEB_IMMED (1 << 9)

#define BMD 0x02630004
#define BMI 0x82230004
#define DSI 0x82800004
#define ENI 0x02a00004
#define RFI 0x82fe01d4

struct reg_entry
{
const char *name;
unsigned char code;
};

static const struct reg_entry gen_reg_table[] ATTRIBUTE_UNUSED =
{
{"fp", 0x16},
{"r0", 0x0},
{"r1", 0x1},
{"r10", 0xA},
{"r11", 0xB},
{"r12", 0xC},
{"r13", 0xD},
{"r14", 0xE},
{"r15", 0xF},
{"r16", 0x10},
{"r17", 0x11},
{"r18", 0x12},
{"r19", 0x13},
{"r2", 0x2},
{"r20", 0x14},
{"r21", 0x15},
{"r22", 0x16},
{"r23", 0x17},
{"r24", 0x18},
{"r25", 0x19},
{"r26", 0x1a},
{"r27", 0x1b},
{"r28", 0x1c},
{"r29", 0x1d},
{"r3", 0x3},
{"r30", 0x1e},
{"r31", 0x1f},
{"r4", 0x4},
{"r5", 0x5},
{"r6", 0x6},
{"r7", 0x7},
{"r8", 0x8},
{"r9", 0x9},
{"sp", 0x17},
};

static const struct reg_entry fp_reg_table[] ATTRIBUTE_UNUSED =
{
{"f0", 0x0},
{"f1", 0x1},
{"f10", 0xa},
{"f11", 0xb},
{"f12", 0xc},
{"f13", 0xd},
{"f14", 0xe},
{"f15", 0xf},
{"f2", 0x2},
{"f3", 0x3},
{"f4", 0x4},
{"f5", 0x5},
{"f6", 0x6},
{"f7", 0x7},
{"f8", 0x8},
{"f9", 0x9},
};

static const struct cc_entry
{
const char *name;
int code;
} cc_table [] ATTRIBUTE_UNUSED =
{
{"cc", 6},
{"cs", 2},
{"eq", 1},
{"fa", 0},
{"ge", 9},
{"gt", 10},
{"hi", 11},
{"le", 12},
{"ls", 13},
{"lt", 14},
{"nc", 8},
{"ne", 5},
{"ns", 4},
{"oc", 7},
{"os", 3},
{"tr", 15},
};

enum addressing_mode
{
mode_d, /* register := */
mode_a, /* op= register */
mode_da, /* register := register */
mode_ab, /* register * register */
mode_dab, /* register := register * register */
mode_iab, /* 5-bit immediate * register * register */
mode_0ab, /* zero * register * register */
mode_da0, /* register := register * zero */
mode_cad, /* condition * register * register */
mode_das, /* register := register * 5-bit immed/register shift count */
mode_di, /* register := 5-bit immediate */
mode_ir, /* 5-bit immediate * register */
mode_ai, /* register 16-bit unsigned immediate */
mode_i, /* 16-bit unsigned immediate */
mode_bax, /* register * register * 5-bit immediate */
mode_dax, /* register := register * 5-bit immediate */
mode_s, /* special mode */
mode_sr, /* special mode with register */
mode_ci, /* condition * 16-bit signed word displacement */
mode_fdab, /* float := float * float */
mode_ifdab, /* fpinst: 4-bit immediate * float * float * float */
mode_idfab, /* fpuread: 4-bit immediate * register * float * float */
mode_fda, /* float := float */
mode_fdra, /* float := register */
mode_rdfab, /* register := float * float */
mode_rdfa, /* register := float */
mode_rrr, /* 3 register sources and destinations (block move) */
};

#define class0 (0<<25)
#define class1 (1<<25)
#define class2 (2<<25)
#define class3 (3<<25)

static const struct opcode_entry
{
const char *mnem;
enum addressing_mode mode;
unsigned code;
char flags;
}
opcode_table[] ATTRIBUTE_UNUSED =
{
{ "adc.b", mode_dab, class3|(1<<21)|(1), def },
{ "adc.l", mode_dab, class3|(1<<21)|(4), def },
{ "adc.w", mode_dab, class3|(1<<21)|(2), def },
{ "add.b", mode_dab, class3|(0<<21)|(1), def },
{ "add.l", mode_dab, class3|(0<<21)|(4), def },
{ "add.w", mode_dab, class3|(0<<21)|(2), def },
{ "addi", mode_ai, class2, def },
{ "and.b", mode_dab, class3|(10<<21)|(1), def},
{ "and.l", mode_dab, class3|(10<<21)|(4), def },
{ "and.w", mode_dab, class3|(10<<21)|(2), def },
{ "asl.b", mode_das, class3|(7<<21)|(1), def },
{ "asl.l", mode_das, class3|(7<<21)|(4), def },
{ "asl.w", mode_das, class3|(7<<21)|(2), def },
{ "asld", mode_a, class1|(15<<21)|(1<<15)|(11<<10)|(4), def },
{ "asr.b", mode_das, class3|(5<<21)|(1), def },
{ "asr.l", mode_das, class3|(5<<21)|(4), def },
{ "asr.w", mode_das, class3|(5<<21)|(2), def },
{ "asrd", mode_a, class1|(15<<21)|(1<<15)|(9<<10)|(4), def },
{ "bmd", mode_rrr, class1|(3<<21)|(3<<16)|(4), gr6 },
{ "bmi", mode_rrr, class1|(1<<21)|(3<<16)|(4), gr6 },
{ "bra", mode_cad, class3|(12<<21)|(4), def },
{ "brr", mode_ci, class0, def },
{ "cmp.b", mode_0ab, class3|(2<<21)|(1), def },
{ "cmp.l", mode_0ab, class3|(2<<21)|(4), def },
{ "cmp.w", mode_0ab, class3|(2<<21)|(2), def },
{ "cmpc.b", mode_0ab, class3|(3<<21)|(1), def },
{ "cmpc.l", mode_0ab, class3|(3<<21)|(4), def },
{ "cmpc.w", mode_0ab, class3|(3<<21)|(2), def },
{ "divds", mode_a, class1|(15<<21)|(1<<15)|(6<<10)|(4), def },
{ "divdu", mode_a, class1|(15<<21)|(1<<15)|(7<<10)|(4), def },
{ "divs", mode_a, class1|(15<<21)|(1<<15)|(2<<10)|(4), def },
{ "divu", mode_a, class1|(15<<21)|(1<<15)|(3<<10)|(4), def },
{ "dsi", mode_s, class1|(4<<21)|(4), def },
{ "eamread", mode_di, class3|(15<<21)|(1<<15)|(1<<9)|(4), def },
{ "eamwrite", mode_iab, class1|(15<<21)|(1<<15)|(4), def },
{ "eni", mode_s, class1|(5<<21)|(4), def },
{ "extb.b", mode_da, class3|(14<<21)|(1), def },
{ "extb.l", mode_da, class3|(14<<21)|(4), def },
{ "extb.w", mode_da, class3|(14<<21)|(2), def },
{ "extw.l", mode_da, class3|(4<<21)|(4), def },
{ "extw.w", mode_da, class3|(4<<21)|(2), def },
{ "fabs", mode_fda, class1|(7<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fadd", mode_fdab, class1|(1<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fcmp", mode_rdfab,class3|(10<<27)|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
{ "fcmpe", mode_rdfab,class3|(11<<27)|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
{ "fdiv", mode_fdab, class1|(4<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fload", mode_fdra, class1|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fmove", mode_fda, class1|(12<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5},
{ "fmult", mode_fdab, class1|(3<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fneg", mode_fda, class1|(6<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fpinst", mode_ifdab,class1|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fpuread", mode_idfab,class3|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
{ "fsqrt", mode_fda, class1|(5<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "fstore", mode_rdfa, class3|(15<<21)|(1<<15)|(1<<9)|(1<<3)|(4), gr5 },
{ "fsub", mode_fdab, class1|(2<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "ftoi", mode_fda, class1|(8<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "itof", mode_fda, class1|(9<<27)|(15<<21)|(1<<15)|(1<<3)|(4), gr5 },
{ "lsr.b", mode_das, class3|(6<<21)|(1), def },
{ "lsr.l", mode_das, class3|(6<<21)|(4), def },
{ "lsr.w", mode_das, class3|(6<<21)|(2), def },
{ "lsrd", mode_a, class1|(15<<21)|(1<<15)|(10<<10)|(4), def },
{ "move.b", mode_da0, class3|(9<<21)|(1), def },
{ "move.l", mode_da0, class3|(9<<21)|(4), def },
{ "move.w", mode_da0, class3|(9<<21)|(2), def },
{ "movil", mode_ai, class2|(4<<21), def },
{ "moviq", mode_ai, class2|(6<<21), def },
{ "moviu", mode_ai, class2|(5<<21), def },
{ "mults", mode_ab, class1|(15<<21)|(1<<15)|(0<<10)|(4), def },
{ "multu", mode_ab, class1|(15<<21)|(1<<15)|(1<<10)|(4), def },
{ "nop", mode_s, class0, def },
{ "not.b", mode_da, class3|(11<<21)|(1), def },
{ "not.l", mode_da, class3|(11<<21)|(4), def },
{ "not.w", mode_da, class3|(11<<21)|(2), def },
{ "or.b", mode_dab, class3|(9<<21)|(1), def },
{ "or.l", mode_dab, class3|(9<<21)|(4), def },
{ "or.w", mode_dab, class3|(9<<21)|(2), def },
{ "read.b", mode_dax, class3|(15<<21)|(1<<9)|(1), def },
{ "read.l", mode_dax, class3|(15<<21)|(1<<9)|(4), def },
{ "read.w", mode_dax, class3|(15<<21)|(1<<9)|(2), def },
{ "readmda", mode_d, class3|(15<<21)|(1<<15)|(1<<9)|(4), def },
{ "readmdb", mode_d, class3|(15<<21)|(1<<15)|(1<<9)|(1<<4)|(4), def },
{ "readmdc", mode_d, class3|(15<<21)|(1<<15)|(1<<9)|(2<<4)|(4), def },
{ "rfi", mode_s, class1|(7<<21)|(30<<16)|(29<<4)|(4), def },
{ "rflag", mode_d, class3|(13<<21)|(4), def },
{ "stop", mode_ir, class1|(0<<21)|(4), def },
{ "sub.b", mode_dab, class3|(2<<21)|(1), def },
{ "sub.l", mode_dab, class3|(2<<21)|(4), def },
{ "sub.w", mode_dab, class3|(2<<21)|(2), def },
{ "subc.b", mode_dab, class3|(3<<21)|(1), def },
{ "subc.l", mode_dab, class3|(3<<21)|(4), def },
{ "subc.w", mode_dab, class3|(3<<21)|(2), def },
{ "subi", mode_ai, class2|(2<<21), def },
{ "trace", mode_ir, class1|(13<<21), def },
{ "write.b", mode_bax, class1|(15<<21)|(1), def },
{ "write.l", mode_bax, class1|(15<<21)|(4), def },
{ "write.w", mode_bax, class1|(15<<21)|(2), def },
{ "writemd", mode_ab, class1|(15<<21)|(1<<15)|(4<<10)|(4), def },
{ "writemdc", mode_a, class1|(15<<21)|(1<<15)|(5<<10)|(4), def },
{ "wrtl", mode_i, class2|(8<<21), gr6 },
{ "wrtu", mode_i, class2|(9<<21), gr6 },
{ "xor.b", mode_dab, class3|(8<<21)|(1), def },
{ "xor.l", mode_dab, class3|(8<<21)|(4), def },
{ "xor.w", mode_dab, class3|(8<<21)|(2), def },
};