| /* ======================================================================== */ |
| /* ========================= LICENSING & COPYRIGHT ======================== */ |
| /* ======================================================================== */ |
| /* |
| * MUSASHI |
| * Version 3.4 |
| * |
| * A portable Motorola M680x0 processor emulation engine. |
| * Copyright 1998-2001 Karl Stenerud. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| /* The code bellow is based on MUSASHI but has been heavily modified for capstore by |
| * Daniel Collin <daniel@collin.com> 2015-2016 */ |
| |
| /* ======================================================================== */ |
| /* ================================ INCLUDES ============================== */ |
| /* ======================================================================== */ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "../../cs_priv.h" |
| #include "../../utils.h" |
| |
| #include "../../MCInst.h" |
| #include "../../MCInstrDesc.h" |
| #include "../../MCRegisterInfo.h" |
| #include "M68KInstPrinter.h" |
| #include "M68KDisassembler.h" |
| |
| #ifndef DECL_SPEC |
| #ifdef _MSC_VER |
| #define DECL_SPEC __cdecl |
| #else |
| #define DECL_SPEC |
| #endif // _MSC_VER |
| #endif // DECL_SPEC |
| |
| /* ======================================================================== */ |
| /* ============================ GENERAL DEFINES =========================== */ |
| /* ======================================================================== */ |
| |
| /* unsigned int and int must be at least 32 bits wide */ |
| #undef uint |
| #define uint unsigned int |
| |
| /* Bit Isolation Functions */ |
| #define BIT_0(A) ((A) & 0x00000001) |
| #define BIT_1(A) ((A) & 0x00000002) |
| #define BIT_2(A) ((A) & 0x00000004) |
| #define BIT_3(A) ((A) & 0x00000008) |
| #define BIT_4(A) ((A) & 0x00000010) |
| #define BIT_5(A) ((A) & 0x00000020) |
| #define BIT_6(A) ((A) & 0x00000040) |
| #define BIT_7(A) ((A) & 0x00000080) |
| #define BIT_8(A) ((A) & 0x00000100) |
| #define BIT_9(A) ((A) & 0x00000200) |
| #define BIT_A(A) ((A) & 0x00000400) |
| #define BIT_B(A) ((A) & 0x00000800) |
| #define BIT_C(A) ((A) & 0x00001000) |
| #define BIT_D(A) ((A) & 0x00002000) |
| #define BIT_E(A) ((A) & 0x00004000) |
| #define BIT_F(A) ((A) & 0x00008000) |
| #define BIT_10(A) ((A) & 0x00010000) |
| #define BIT_11(A) ((A) & 0x00020000) |
| #define BIT_12(A) ((A) & 0x00040000) |
| #define BIT_13(A) ((A) & 0x00080000) |
| #define BIT_14(A) ((A) & 0x00100000) |
| #define BIT_15(A) ((A) & 0x00200000) |
| #define BIT_16(A) ((A) & 0x00400000) |
| #define BIT_17(A) ((A) & 0x00800000) |
| #define BIT_18(A) ((A) & 0x01000000) |
| #define BIT_19(A) ((A) & 0x02000000) |
| #define BIT_1A(A) ((A) & 0x04000000) |
| #define BIT_1B(A) ((A) & 0x08000000) |
| #define BIT_1C(A) ((A) & 0x10000000) |
| #define BIT_1D(A) ((A) & 0x20000000) |
| #define BIT_1E(A) ((A) & 0x40000000) |
| #define BIT_1F(A) ((A) & 0x80000000) |
| |
| /* These are the CPU types understood by this disassembler */ |
| #define TYPE_68000 1 |
| #define TYPE_68010 2 |
| #define TYPE_68020 4 |
| #define TYPE_68030 8 |
| #define TYPE_68040 16 |
| |
| #define M68000_ONLY TYPE_68000 |
| |
| #define M68010_ONLY TYPE_68010 |
| #define M68010_LESS (TYPE_68000 | TYPE_68010) |
| #define M68010_PLUS (TYPE_68010 | TYPE_68020 | TYPE_68030 | TYPE_68040) |
| |
| #define M68020_ONLY TYPE_68020 |
| #define M68020_LESS (TYPE_68010 | TYPE_68020) |
| #define M68020_PLUS (TYPE_68020 | TYPE_68030 | TYPE_68040) |
| |
| #define M68030_ONLY TYPE_68030 |
| #define M68030_LESS (TYPE_68010 | TYPE_68020 | TYPE_68030) |
| #define M68030_PLUS (TYPE_68030 | TYPE_68040) |
| |
| #define M68040_PLUS TYPE_68040 |
| |
| enum { |
| M68K_CPU_TYPE_INVALID, |
| M68K_CPU_TYPE_68000, |
| M68K_CPU_TYPE_68010, |
| M68K_CPU_TYPE_68EC020, |
| M68K_CPU_TYPE_68020, |
| M68K_CPU_TYPE_68030, /* Supported by disassembler ONLY */ |
| M68K_CPU_TYPE_68040 /* Supported by disassembler ONLY */ |
| }; |
| |
| /* Extension word formats */ |
| #define EXT_8BIT_DISPLACEMENT(A) ((A)&0xff) |
| #define EXT_FULL(A) BIT_8(A) |
| #define EXT_EFFECTIVE_ZERO(A) (((A)&0xe4) == 0xc4 || ((A)&0xe2) == 0xc0) |
| #define EXT_BASE_REGISTER_PRESENT(A) (!BIT_7(A)) |
| #define EXT_INDEX_REGISTER_PRESENT(A) (!BIT_6(A)) |
| #define EXT_INDEX_REGISTER(A) (((A)>>12)&7) |
| #define EXT_INDEX_PRE_POST(A) (EXT_INDEX_PRESENT(A) && (A)&3) |
| #define EXT_INDEX_PRE(A) (EXT_INDEX_PRESENT(A) && ((A)&7) < 4 && ((A)&7) != 0) |
| #define EXT_INDEX_POST(A) (EXT_INDEX_PRESENT(A) && ((A)&7) > 4) |
| #define EXT_INDEX_SCALE(A) (((A)>>9)&3) |
| #define EXT_INDEX_LONG(A) BIT_B(A) |
| #define EXT_INDEX_AR(A) BIT_F(A) |
| #define EXT_BASE_DISPLACEMENT_PRESENT(A) (((A)&0x30) > 0x10) |
| #define EXT_BASE_DISPLACEMENT_WORD(A) (((A)&0x30) == 0x20) |
| #define EXT_BASE_DISPLACEMENT_LONG(A) (((A)&0x30) == 0x30) |
| #define EXT_OUTER_DISPLACEMENT_PRESENT(A) (((A)&3) > 1 && ((A)&0x47) < 0x44) |
| #define EXT_OUTER_DISPLACEMENT_WORD(A) (((A)&3) == 2 && ((A)&0x47) < 0x44) |
| #define EXT_OUTER_DISPLACEMENT_LONG(A) (((A)&3) == 3 && ((A)&0x47) < 0x44) |
| |
| #define IS_BITSET(val,b) ((val) & (1 << (b))) |
| #define BITFIELD_MASK(sb,eb) (((1 << ((sb) + 1))-1) & (~((1 << (eb))-1))) |
| #define BITFIELD(val,sb,eb) ((BITFIELD_MASK(sb,eb) & (val)) >> (eb)) |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static unsigned int m68k_read_disassembler_16(const m68k_info *info, const uint64_t addr) |
| { |
| const uint16_t v0 = info->code[addr + 0]; |
| const uint16_t v1 = info->code[addr + 1]; |
| return (v0 << 8) | v1; |
| } |
| |
| static unsigned int m68k_read_disassembler_32(const m68k_info *info, const uint64_t addr) |
| { |
| const uint32_t v0 = info->code[addr + 0]; |
| const uint32_t v1 = info->code[addr + 1]; |
| const uint32_t v2 = info->code[addr + 2]; |
| const uint32_t v3 = info->code[addr + 3]; |
| return (v0 << 24) | (v1 << 16) | (v2 << 8) | v3; |
| } |
| |
| static uint64_t m68k_read_disassembler_64(const m68k_info *info, const uint64_t addr) |
| { |
| const uint64_t v0 = info->code[addr + 0]; |
| const uint64_t v1 = info->code[addr + 1]; |
| const uint64_t v2 = info->code[addr + 2]; |
| const uint64_t v3 = info->code[addr + 3]; |
| const uint64_t v4 = info->code[addr + 4]; |
| const uint64_t v5 = info->code[addr + 5]; |
| const uint64_t v6 = info->code[addr + 6]; |
| const uint64_t v7 = info->code[addr + 7]; |
| return (v0 << 56) | (v1 << 48) | (v2 << 40) | (v3 << 32) | (v4 << 24) | (v5 << 16) | (v6 << 8) | v7; |
| } |
| |
| static unsigned int m68k_read_safe_16(const m68k_info *info, const uint64_t address) |
| { |
| const uint64_t addr = (address - info->baseAddress) & info->address_mask; |
| if (info->code_len < addr + 2) { |
| return 0xaaaa; |
| } |
| return m68k_read_disassembler_16(info, addr); |
| } |
| |
| static unsigned int m68k_read_safe_32(const m68k_info *info, const uint64_t address) |
| { |
| const uint64_t addr = (address - info->baseAddress) & info->address_mask; |
| if (info->code_len < addr + 4) { |
| return 0xaaaaaaaa; |
| } |
| return m68k_read_disassembler_32(info, addr); |
| } |
| |
| static uint64_t m68k_read_safe_64(const m68k_info *info, const uint64_t address) |
| { |
| const uint64_t addr = (address - info->baseAddress) & info->address_mask; |
| if (info->code_len < addr + 8) { |
| return 0xaaaaaaaaaaaaaaaaLL; |
| } |
| return m68k_read_disassembler_64(info, addr); |
| } |
| |
| /* ======================================================================== */ |
| /* =============================== PROTOTYPES ============================= */ |
| /* ======================================================================== */ |
| |
| /* make signed integers 100% portably */ |
| static int make_int_8(int value); |
| static int make_int_16(int value); |
| |
| /* Stuff to build the opcode handler jump table */ |
| static void build_opcode_table(void); |
| static int valid_ea(uint opcode, uint mask); |
| static int DECL_SPEC compare_nof_true_bits(const void *aptr, const void *bptr); |
| static void d68000_invalid(m68k_info *info); |
| static int instruction_is_valid(m68k_info *info, const unsigned int word_check); |
| |
| /* used to build opcode handler jump table */ |
| typedef struct { |
| void (*opcode_handler)(m68k_info *info); /* handler function */ |
| uint mask; /* mask on opcode */ |
| uint match; /* what to match after masking */ |
| uint ea_mask; /* what ea modes are allowed */ |
| uint mask2; /* mask the 2nd word */ |
| uint match2; /* what to match after masking */ |
| } opcode_struct; |
| |
| typedef struct { |
| void (*instruction)(m68k_info *info); /* handler function */ |
| uint word2_mask; /* mask the 2nd word */ |
| uint word2_match; /* what to match after masking */ |
| } instruction_struct; |
| |
| /* ======================================================================== */ |
| /* ================================= DATA ================================= */ |
| /* ======================================================================== */ |
| |
| /* Opcode handler jump table */ |
| static instruction_struct g_instruction_table[0x10000]; |
| |
| /* used by ops like asr, ror, addq, etc */ |
| static uint g_3bit_qdata_table[8] = {8, 1, 2, 3, 4, 5, 6, 7}; |
| |
| static uint g_5bit_data_table[32] = { |
| 32, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 |
| }; |
| |
| static m68k_insn s_branch_lut[] = { |
| M68K_INS_INVALID, M68K_INS_INVALID, M68K_INS_BHI, M68K_INS_BLS, |
| M68K_INS_BCC, M68K_INS_BCS, M68K_INS_BNE, M68K_INS_BEQ, |
| M68K_INS_BVC, M68K_INS_BVS, M68K_INS_BPL, M68K_INS_BMI, |
| M68K_INS_BGE, M68K_INS_BLT, M68K_INS_BGT, M68K_INS_BLE, |
| }; |
| |
| static m68k_insn s_dbcc_lut[] = { |
| M68K_INS_DBT, M68K_INS_DBF, M68K_INS_DBHI, M68K_INS_DBLS, |
| M68K_INS_DBCC, M68K_INS_DBCS, M68K_INS_DBNE, M68K_INS_DBEQ, |
| M68K_INS_DBVC, M68K_INS_DBVS, M68K_INS_DBPL, M68K_INS_DBMI, |
| M68K_INS_DBGE, M68K_INS_DBLT, M68K_INS_DBGT, M68K_INS_DBLE, |
| }; |
| |
| static m68k_insn s_scc_lut[] = { |
| M68K_INS_ST, M68K_INS_SF, M68K_INS_SHI, M68K_INS_SLS, |
| M68K_INS_SCC, M68K_INS_SCS, M68K_INS_SNE, M68K_INS_SEQ, |
| M68K_INS_SVC, M68K_INS_SVS, M68K_INS_SPL, M68K_INS_SMI, |
| M68K_INS_SGE, M68K_INS_SLT, M68K_INS_SGT, M68K_INS_SLE, |
| }; |
| |
| static m68k_insn s_trap_lut[] = { |
| M68K_INS_TRAPT, M68K_INS_TRAPF, M68K_INS_TRAPHI, M68K_INS_TRAPLS, |
| M68K_INS_TRAPCC, M68K_INS_TRAPCS, M68K_INS_TRAPNE, M68K_INS_TRAPEQ, |
| M68K_INS_TRAPVC, M68K_INS_TRAPVS, M68K_INS_TRAPPL, M68K_INS_TRAPMI, |
| M68K_INS_TRAPGE, M68K_INS_TRAPLT, M68K_INS_TRAPGT, M68K_INS_TRAPLE, |
| }; |
| |
| /* ======================================================================== */ |
| /* =========================== UTILITY FUNCTIONS ========================== */ |
| /* ======================================================================== */ |
| |
| #define LIMIT_CPU_TYPES(info, ALLOWED_CPU_TYPES) \ |
| do { \ |
| if (!(info->type & ALLOWED_CPU_TYPES)) { \ |
| d68000_invalid(info); \ |
| return; \ |
| } \ |
| } while (0) |
| |
| static unsigned int peek_imm_8(const m68k_info *info) { return (m68k_read_safe_16((info), (info)->pc)&0xff); } |
| static unsigned int peek_imm_16(const m68k_info *info) { return m68k_read_safe_16((info), (info)->pc); } |
| static unsigned int peek_imm_32(const m68k_info *info) { return m68k_read_safe_32((info), (info)->pc); } |
| static unsigned int peek_imm_64(const m68k_info *info) { return (unsigned int)m68k_read_safe_64((info), (info)->pc); } |
| |
| static unsigned int read_imm_8(m68k_info *info) { const unsigned int value = peek_imm_8(info); (info)->pc+=2; return value; } |
| static unsigned int read_imm_16(m68k_info *info) { const unsigned int value = peek_imm_16(info); (info)->pc+=2; return value; } |
| static unsigned int read_imm_32(m68k_info *info) { const unsigned int value = peek_imm_32(info); (info)->pc+=4; return value; } |
| static unsigned int read_imm_64(m68k_info *info) { const unsigned int value = peek_imm_64(info); (info)->pc+=8; return value; } |
| |
| /* Fake a split interface */ |
| #define get_ea_mode_str_8(instruction) get_ea_mode_str(instruction, 0) |
| #define get_ea_mode_str_16(instruction) get_ea_mode_str(instruction, 1) |
| #define get_ea_mode_str_32(instruction) get_ea_mode_str(instruction, 2) |
| |
| #define get_imm_str_s8() get_imm_str_s(0) |
| #define get_imm_str_s16() get_imm_str_s(1) |
| #define get_imm_str_s32() get_imm_str_s(2) |
| |
| #define get_imm_str_u8() get_imm_str_u(0) |
| #define get_imm_str_u16() get_imm_str_u(1) |
| #define get_imm_str_u32() get_imm_str_u(2) |
| |
| |
| /* 100% portable signed int generators */ |
| static int make_int_8(int value) |
| { |
| return (value & 0x80) ? value | ~0xff : value & 0xff; |
| } |
| |
| static int make_int_16(int value) |
| { |
| return (value & 0x8000) ? value | ~0xffff : value & 0xffff; |
| } |
| |
| static void get_with_index_address_mode(m68k_info *info, cs_m68k_op* op, uint instruction, uint size, bool is_pc) |
| { |
| uint extension = read_imm_16(info); |
| |
| op->address_mode = M68K_AM_AREGI_INDEX_BASE_DISP; |
| |
| if (EXT_FULL(extension)) { |
| uint preindex; |
| uint postindex; |
| |
| op->mem.base_reg = M68K_REG_INVALID; |
| op->mem.index_reg = M68K_REG_INVALID; |
| |
| /* Not sure how to deal with this? |
| if (EXT_EFFECTIVE_ZERO(extension)) { |
| strcpy(mode, "0"); |
| break; |
| } |
| */ |
| |
| op->mem.in_disp = EXT_BASE_DISPLACEMENT_PRESENT(extension) ? (EXT_BASE_DISPLACEMENT_LONG(extension) ? read_imm_32(info) : read_imm_16(info)) : 0; |
| op->mem.out_disp = EXT_OUTER_DISPLACEMENT_PRESENT(extension) ? (EXT_OUTER_DISPLACEMENT_LONG(extension) ? read_imm_32(info) : read_imm_16(info)) : 0; |
| |
| if (EXT_BASE_REGISTER_PRESENT(extension)) { |
| if (is_pc) { |
| op->mem.base_reg = M68K_REG_PC; |
| } else { |
| op->mem.base_reg = M68K_REG_A0 + (instruction & 7); |
| } |
| } |
| |
| if (EXT_INDEX_REGISTER_PRESENT(extension)) { |
| if (EXT_INDEX_AR(extension)) { |
| op->mem.index_reg = M68K_REG_A0 + EXT_INDEX_REGISTER(extension); |
| } else { |
| op->mem.index_reg = M68K_REG_D0 + EXT_INDEX_REGISTER(extension); |
| } |
| |
| op->mem.index_size = EXT_INDEX_LONG(extension) ? 1 : 0; |
| |
| if (EXT_INDEX_SCALE(extension)) { |
| op->mem.scale = 1 << EXT_INDEX_SCALE(extension); |
| } |
| } |
| |
| preindex = (extension & 7) > 0 && (extension & 7) < 4; |
| postindex = (extension & 7) > 4; |
| |
| if (preindex) { |
| op->address_mode = is_pc ? M68K_AM_PC_MEMI_PRE_INDEX : M68K_AM_MEMI_PRE_INDEX; |
| } else if (postindex) { |
| op->address_mode = is_pc ? M68K_AM_PC_MEMI_POST_INDEX : M68K_AM_MEMI_POST_INDEX; |
| } |
| |
| return; |
| } |
| |
| op->mem.index_reg = (EXT_INDEX_AR(extension) ? M68K_REG_A0 : M68K_REG_D0) + EXT_INDEX_REGISTER(extension); |
| op->mem.index_size = EXT_INDEX_LONG(extension) ? 1 : 0; |
| |
| if (EXT_8BIT_DISPLACEMENT(extension) == 0) { |
| if (is_pc) { |
| op->mem.base_reg = M68K_REG_PC; |
| op->address_mode = M68K_AM_PCI_INDEX_BASE_DISP; |
| } else { |
| op->mem.base_reg = M68K_REG_A0 + (instruction & 7); |
| } |
| } else { |
| if (is_pc) { |
| op->mem.base_reg = M68K_REG_PC; |
| op->address_mode = M68K_AM_PCI_INDEX_8_BIT_DISP; |
| } else { |
| op->mem.base_reg = M68K_REG_A0 + (instruction & 7); |
| op->address_mode = M68K_AM_AREGI_INDEX_8_BIT_DISP; |
| } |
| |
| op->mem.disp = (int8_t)(extension & 0xff); |
| } |
| |
| if (EXT_INDEX_SCALE(extension)) { |
| op->mem.scale = 1 << EXT_INDEX_SCALE(extension); |
| } |
| } |
| |
| /* Make string of effective address mode */ |
| void get_ea_mode_op(m68k_info *info, cs_m68k_op* op, uint instruction, uint size) |
| { |
| // default to memory |
| |
| op->type = M68K_OP_MEM; |
| |
| switch (instruction & 0x3f) { |
| case 0x00: case 0x01: case 0x02: case 0x03: case 0x04: case 0x05: case 0x06: case 0x07: |
| /* data register direct */ |
| op->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op->reg = M68K_REG_D0 + (instruction & 7); |
| op->type = M68K_OP_REG; |
| break; |
| |
| case 0x08: case 0x09: case 0x0a: case 0x0b: case 0x0c: case 0x0d: case 0x0e: case 0x0f: |
| /* address register direct */ |
| op->address_mode = M68K_AM_REG_DIRECT_ADDR; |
| op->reg = M68K_REG_A0 + (instruction & 7); |
| op->type = M68K_OP_REG; |
| break; |
| |
| case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17: |
| /* address register indirect */ |
| op->address_mode = M68K_AM_REGI_ADDR; |
| op->reg = M68K_REG_A0 + (instruction & 7); |
| break; |
| |
| case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f: |
| /* address register indirect with postincrement */ |
| op->address_mode = M68K_AM_REGI_ADDR_POST_INC; |
| op->reg = M68K_REG_A0 + (instruction & 7); |
| break; |
| |
| case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27: |
| /* address register indirect with predecrement */ |
| op->address_mode = M68K_AM_REGI_ADDR_PRE_DEC; |
| op->reg = M68K_REG_A0 + (instruction & 7); |
| break; |
| |
| case 0x28: case 0x29: case 0x2a: case 0x2b: case 0x2c: case 0x2d: case 0x2e: case 0x2f: |
| /* address register indirect with displacement*/ |
| op->address_mode = M68K_AM_REGI_ADDR_DISP; |
| op->mem.base_reg = M68K_REG_A0 + (instruction & 7); |
| op->mem.disp = (int16_t)read_imm_16(info); |
| break; |
| |
| case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37: |
| /* address register indirect with index */ |
| get_with_index_address_mode(info, op, instruction, size, false); |
| break; |
| |
| case 0x38: |
| /* absolute short address */ |
| op->address_mode = M68K_AM_ABSOLUTE_DATA_SHORT; |
| op->imm = read_imm_16(info); |
| break; |
| |
| case 0x39: |
| /* absolute long address */ |
| op->address_mode = M68K_AM_ABSOLUTE_DATA_LONG; |
| op->imm = read_imm_32(info); |
| break; |
| |
| case 0x3a: |
| /* program counter with displacement */ |
| op->address_mode = M68K_AM_PCI_DISP; |
| op->mem.disp = (int16_t)read_imm_16(info); |
| break; |
| |
| case 0x3b: |
| /* program counter with index */ |
| get_with_index_address_mode(info, op, instruction, size, true); |
| break; |
| |
| case 0x3c: |
| op->address_mode = M68K_AM_IMMEDIATE; |
| op->type = M68K_OP_IMM; |
| |
| if (size == 1) |
| op->imm = read_imm_8(info) & 0xff; |
| else if (size == 2) |
| op->imm = read_imm_16(info) & 0xffff; |
| else if (size == 4) |
| op->imm = read_imm_32(info); |
| else |
| op->imm = read_imm_64(info); |
| |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| static void set_insn_group(m68k_info *info, m68k_group_type group) |
| { |
| info->groups[info->groups_count++] = (uint8_t)group; |
| } |
| |
| static cs_m68k* build_init_op(m68k_info *info, int opcode, int count, int size) |
| { |
| cs_m68k* ext; |
| |
| MCInst_setOpcode(info->inst, opcode); |
| |
| ext = &info->extension; |
| |
| ext->op_count = (uint8_t)count; |
| ext->op_size.type = M68K_SIZE_TYPE_CPU; |
| ext->op_size.cpu_size = size; |
| |
| return ext; |
| } |
| |
| static void build_re_gen_1(m68k_info *info, bool isDreg, int opcode, uint8_t size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| if (isDreg) { |
| op0->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op0->reg = M68K_REG_D0 + ((info->ir >> 9 ) & 7); |
| } else { |
| op0->address_mode = M68K_AM_REG_DIRECT_ADDR; |
| op0->reg = M68K_REG_A0 + ((info->ir >> 9 ) & 7); |
| } |
| |
| get_ea_mode_op(info, op1, info->ir, size); |
| } |
| |
| static void build_re_1(m68k_info *info, int opcode, uint8_t size) |
| { |
| build_re_gen_1(info, true, opcode, size); |
| } |
| |
| static void build_er_gen_1(m68k_info *info, bool isDreg, int opcode, uint8_t size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, size); |
| |
| if (isDreg) { |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| } else { |
| op1->address_mode = M68K_AM_REG_DIRECT_ADDR; |
| op1->reg = M68K_REG_A0 + ((info->ir >> 9) & 7); |
| } |
| } |
| |
| static void build_rr(m68k_info *info, int opcode, uint8_t size, int imm) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k_op* op2; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| op2 = &ext->operands[2]; |
| |
| op0->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op0->reg = M68K_REG_D0 + (info->ir & 7); |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| |
| if (imm > 0) { |
| ext->op_count = 3; |
| op2->type = M68K_OP_IMM; |
| op2->address_mode = M68K_AM_IMMEDIATE; |
| op2->imm = imm; |
| } |
| } |
| |
| static void build_r(m68k_info *info, int opcode, uint8_t size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op0->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + (info->ir & 7); |
| } |
| |
| static void build_imm_ea(m68k_info *info, int opcode, uint8_t size, int imm) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_IMM; |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->imm = imm; |
| |
| get_ea_mode_op(info, op1, info->ir, size); |
| } |
| |
| static void build_3bit_d(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_IMM; |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->imm = g_3bit_qdata_table[(info->ir >> 9) & 7]; |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + (info->ir & 7); |
| } |
| |
| static void build_3bit_ea(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_IMM; |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->imm = g_3bit_qdata_table[(info->ir >> 9) & 7]; |
| |
| get_ea_mode_op(info, op1, info->ir, size); |
| } |
| |
| static void build_mm(m68k_info *info, int opcode, uint8_t size, int imm) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k_op* op2; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| op2 = &ext->operands[2]; |
| |
| op0->address_mode = M68K_AM_REGI_ADDR_PRE_DEC; |
| op0->reg = M68K_REG_A0 + (info->ir & 7); |
| |
| op1->address_mode = M68K_AM_REGI_ADDR_PRE_DEC; |
| op1->reg = M68K_REG_A0 + ((info->ir >> 9) & 7); |
| |
| if (imm > 0) { |
| ext->op_count = 3; |
| op2->type = M68K_OP_IMM; |
| op2->address_mode = M68K_AM_IMMEDIATE; |
| op2->imm = imm; |
| } |
| } |
| |
| static void build_ea(m68k_info *info, int opcode, uint8_t size) |
| { |
| cs_m68k* ext = build_init_op(info, opcode, 1, size); |
| get_ea_mode_op(info, &ext->operands[0], info->ir, size); |
| } |
| |
| static void build_ea_a(m68k_info *info, int opcode, uint8_t size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, size); |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_ADDR; |
| op1->reg = M68K_REG_A0 + ((info->ir >> 9) & 7); |
| } |
| |
| static void build_ea_ea(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, size); |
| get_ea_mode_op(info, op1, (((info->ir>>9) & 7) | ((info->ir>>3) & 0x38)), size); |
| } |
| |
| static void build_pi_pi(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_REGI_ADDR_POST_INC; |
| op0->reg = M68K_REG_A0 + (info->ir & 7); |
| |
| op1->address_mode = M68K_AM_REGI_ADDR_POST_INC; |
| op1->reg = M68K_REG_A0 + ((info->ir >> 9) & 7); |
| } |
| |
| static void build_imm_special_reg(m68k_info *info, int opcode, int imm, int size, m68k_reg reg) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_IMM; |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->imm = imm; |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = reg; |
| } |
| |
| static void build_relative_branch(m68k_info *info, int opcode, int size, int displacement) |
| { |
| cs_m68k_op* op; |
| cs_m68k* ext = build_init_op(info, opcode, 1, size); |
| |
| op = &ext->operands[0]; |
| |
| op->type = M68K_OP_BR_DISP; |
| op->address_mode = M68K_AM_BRANCH_DISPLACEMENT; |
| op->br_disp.disp = displacement; |
| op->br_disp.disp_size = size; |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| set_insn_group(info, M68K_GRP_BRANCH_RELATIVE); |
| } |
| |
| static void build_absolute_jump_with_immediate(m68k_info *info, int opcode, int size, int immediate) |
| { |
| cs_m68k_op* op; |
| cs_m68k* ext = build_init_op(info, opcode, 1, size); |
| |
| op = &ext->operands[0]; |
| |
| op->type = M68K_OP_IMM; |
| op->address_mode = M68K_AM_IMMEDIATE; |
| op->imm = immediate; |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| } |
| |
| static void build_bcc(m68k_info *info, int size, int displacement) |
| { |
| build_relative_branch(info, s_branch_lut[(info->ir >> 8) & 0xf], size, displacement); |
| } |
| |
| static void build_trap(m68k_info *info, int size, int immediate) |
| { |
| build_absolute_jump_with_immediate(info, s_trap_lut[(info->ir >> 8) & 0xf], size, immediate); |
| } |
| |
| static void build_dbxx(m68k_info *info, int opcode, int size, int displacement) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op0->reg = M68K_REG_D0 + (info->ir & 7); |
| |
| op1->type = M68K_OP_BR_DISP; |
| op1->address_mode = M68K_AM_BRANCH_DISPLACEMENT; |
| op1->br_disp.disp = displacement; |
| op1->br_disp.disp_size = M68K_OP_BR_DISP_SIZE_LONG; |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| set_insn_group(info, M68K_GRP_BRANCH_RELATIVE); |
| } |
| |
| static void build_dbcc(m68k_info *info, int size, int displacement) |
| { |
| build_dbxx(info, s_dbcc_lut[(info->ir >> 8) & 0xf], size, displacement); |
| } |
| |
| static void build_d_d_ea(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k_op* op2; |
| uint extension = read_imm_16(info); |
| cs_m68k* ext = build_init_op(info, opcode, 3, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| op2 = &ext->operands[2]; |
| |
| op0->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op0->reg = M68K_REG_D0 + (extension & 7); |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + ((extension >> 6) & 7); |
| |
| get_ea_mode_op(info, op2, info->ir, size); |
| } |
| |
| static void build_bitfield_ins(m68k_info *info, int opcode, int has_d_arg) |
| { |
| uint8_t offset; |
| uint8_t width; |
| cs_m68k_op* op_ea; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 1, 0); |
| uint extension = read_imm_16(info); |
| |
| op_ea = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| if (BIT_B(extension)) |
| offset = (extension >> 6) & 7; |
| else |
| offset = (extension >> 6) & 31; |
| |
| if (BIT_5(extension)) |
| width = extension & 7; |
| else |
| width = (uint8_t)g_5bit_data_table[extension & 31]; |
| |
| if (has_d_arg) { |
| ext->op_count = 2; |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + ((extension >> 12) & 7); |
| } |
| |
| get_ea_mode_op(info, op_ea, info->ir, 1); |
| |
| op_ea->mem.bitfield = 1; |
| op_ea->mem.width = width; |
| op_ea->mem.offset = offset; |
| } |
| |
| static void build_d(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k* ext = build_init_op(info, opcode, 1, size); |
| cs_m68k_op* op; |
| |
| op = &ext->operands[0]; |
| |
| op->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op->reg = M68K_REG_D0 + (info->ir & 7); |
| } |
| |
| static uint16_t reverse_bits(uint v) |
| { |
| uint r = v; // r will be reversed bits of v; first get LSB of v |
| uint s = 16 - 1; // extra shift needed at end |
| |
| for (v >>= 1; v; v >>= 1) { |
| r <<= 1; |
| r |= v & 1; |
| s--; |
| } |
| |
| return r <<= s; // shift when v's highest bits are zero |
| } |
| |
| static uint8_t reverse_bits_8(uint v) |
| { |
| uint r = v; // r will be reversed bits of v; first get LSB of v |
| uint s = 8 - 1; // extra shift needed at end |
| |
| for (v >>= 1; v; v >>= 1) { |
| r <<= 1; |
| r |= v & 1; |
| s--; |
| } |
| |
| return r <<= s; // shift when v's highest bits are zero |
| } |
| |
| |
| static void build_movem_re(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_REG_BITS; |
| op0->register_bits = read_imm_16(info); |
| |
| get_ea_mode_op(info, op1, info->ir, size); |
| |
| if (op1->address_mode == M68K_AM_REGI_ADDR_PRE_DEC) |
| op0->register_bits = reverse_bits(op0->register_bits); |
| } |
| |
| static void build_movem_er(m68k_info *info, int opcode, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, opcode, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op1->type = M68K_OP_REG_BITS; |
| op1->register_bits = read_imm_16(info); |
| |
| get_ea_mode_op(info, op0, info->ir, size); |
| } |
| |
| static void build_imm(m68k_info *info, int opcode, int data) |
| { |
| cs_m68k_op* op; |
| cs_m68k* ext = build_init_op(info, opcode, 1, 0); |
| |
| MCInst_setOpcode(info->inst, opcode); |
| |
| op = &ext->operands[0]; |
| |
| op->type = M68K_OP_IMM; |
| op->address_mode = M68K_AM_IMMEDIATE; |
| op->imm = data; |
| } |
| |
| static void build_illegal(m68k_info *info, int data) |
| { |
| build_imm(info, M68K_INS_ILLEGAL, data); |
| } |
| |
| static void build_invalid(m68k_info *info, int data) |
| { |
| build_imm(info, M68K_INS_INVALID, data); |
| } |
| |
| static void build_cas2(m68k_info *info, int size) |
| { |
| uint word3; |
| uint extension; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k_op* op2; |
| cs_m68k* ext = build_init_op(info, M68K_INS_CAS2, 3, size); |
| int reg_0, reg_1; |
| |
| /* cas2 is the only 3 words instruction, word2 and word3 have the same motif bits to check */ |
| word3 = peek_imm_32(info) & 0xffff; |
| if (!instruction_is_valid(info, word3)) |
| return; |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| op2 = &ext->operands[2]; |
| |
| extension = read_imm_32(info); |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->type = M68K_OP_REG_PAIR; |
| op0->reg_pair.reg_0 = (extension >> 16) & 7; |
| op0->reg_pair.reg_1 = extension & 7; |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->type = M68K_OP_REG_PAIR; |
| op1->reg_pair.reg_0 = (extension >> 22) & 7; |
| op1->reg_pair.reg_1 = (extension >> 6) & 7; |
| |
| reg_0 = (extension >> 28) & 7; |
| reg_1 = (extension >> 12) & 7; |
| |
| op2->address_mode = M68K_AM_NONE; |
| op2->type = M68K_OP_REG_PAIR; |
| op2->reg_pair.reg_0 = reg_0 + (BIT_1F(extension) ? 8 : 0); |
| op2->reg_pair.reg_1 = reg_1 + (BIT_F(extension) ? 8 : 0); |
| } |
| |
| static void build_chk2_cmp2(m68k_info *info, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_CHK2, 2, size); |
| |
| uint extension = read_imm_16(info); |
| |
| if (BIT_B(extension)) |
| MCInst_setOpcode(info->inst, M68K_INS_CHK2); |
| else |
| MCInst_setOpcode(info->inst, M68K_INS_CMP2); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, size); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->type = M68K_OP_REG; |
| op1->reg = (BIT_F(extension) ? M68K_REG_A0 : M68K_REG_D0) + ((extension >> 12) & 7); |
| } |
| |
| static void build_move16(m68k_info *info, int data[2], int modes[2]) |
| { |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE16, 2, 0); |
| int i; |
| |
| for (i = 0; i < 2; ++i) { |
| cs_m68k_op* op = &ext->operands[i]; |
| const int d = data[i]; |
| const int m = modes[i]; |
| |
| op->type = M68K_OP_MEM; |
| |
| if (m == M68K_AM_REGI_ADDR_POST_INC || m == M68K_AM_REG_DIRECT_ADDR) { |
| op->address_mode = m; |
| op->reg = M68K_REG_A0 + d; |
| } else { |
| op->address_mode = m; |
| op->imm = d; |
| } |
| } |
| } |
| |
| static void build_link(m68k_info *info, int disp, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_LINK, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_A0 + (info->ir & 7); |
| |
| op1->address_mode = M68K_AM_IMMEDIATE; |
| op1->type = M68K_OP_IMM; |
| op1->imm = disp; |
| } |
| |
| static void build_cpush_cinv(m68k_info *info, int op_offset) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_INVALID, 2, 0); |
| |
| switch ((info->ir >> 3) & 3) { // scope |
| // Invalid |
| case 0: |
| d68000_invalid(info); |
| return; |
| // Line |
| case 1: |
| MCInst_setOpcode(info->inst, op_offset + 0); |
| break; |
| // Page |
| case 2: |
| MCInst_setOpcode(info->inst, op_offset + 1); |
| break; |
| // All |
| case 3: |
| ext->op_count = 1; |
| MCInst_setOpcode(info->inst, op_offset + 2); |
| break; |
| } |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->type = M68K_OP_IMM; |
| op0->imm = (info->ir >> 6) & 3; |
| |
| op1->type = M68K_OP_MEM; |
| op1->address_mode = M68K_AM_REG_DIRECT_ADDR; |
| op1->imm = M68K_REG_A0 + (info->ir & 7); |
| } |
| |
| static void build_movep_re(m68k_info *info, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVEP, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| |
| op1->address_mode = M68K_AM_REGI_ADDR_DISP; |
| op1->type = M68K_OP_MEM; |
| op1->mem.base_reg = M68K_REG_A0 + (info->ir & 7); |
| op1->mem.disp = (int16_t)read_imm_16(info); |
| } |
| |
| static void build_movep_er(m68k_info *info, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVEP, 2, size); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_REGI_ADDR_DISP; |
| op0->type = M68K_OP_MEM; |
| op0->mem.base_reg = M68K_REG_A0 + (info->ir & 7); |
| op0->mem.disp = (int16_t)read_imm_16(info); |
| |
| op1->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| } |
| |
| static void build_moves(m68k_info *info, int size) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVES, 2, size); |
| uint extension = read_imm_16(info); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| if (BIT_B(extension)) { |
| op0->reg = (BIT_F(extension) ? M68K_REG_A0 : M68K_REG_D0) + ((extension >> 12) & 7); |
| get_ea_mode_op(info, op1, info->ir, size); |
| } else { |
| get_ea_mode_op(info, op0, info->ir, size); |
| op1->reg = (BIT_F(extension) ? M68K_REG_A0 : M68K_REG_D0) + ((extension >> 12) & 7); |
| } |
| } |
| |
| static void build_er_1(m68k_info *info, int opcode, uint8_t size) |
| { |
| build_er_gen_1(info, true, opcode, size); |
| } |
| |
| /* ======================================================================== */ |
| /* ========================= INSTRUCTION HANDLERS ========================= */ |
| /* ======================================================================== */ |
| /* Instruction handler function names follow this convention: |
| * |
| * d68000_NAME_EXTENSIONS(void) |
| * where NAME is the name of the opcode it handles and EXTENSIONS are any |
| * extensions for special instances of that opcode. |
| * |
| * Examples: |
| * d68000_add_er_8(): add opcode, from effective address to register, |
| * size = byte |
| * |
| * d68000_asr_s_8(): arithmetic shift right, static count, size = byte |
| * |
| * |
| * Common extensions: |
| * 8 : size = byte |
| * 16 : size = word |
| * 32 : size = long |
| * rr : register to register |
| * mm : memory to memory |
| * r : register |
| * s : static |
| * er : effective address -> register |
| * re : register -> effective address |
| * ea : using effective address mode of operation |
| * d : data register direct |
| * a : address register direct |
| * ai : address register indirect |
| * pi : address register indirect with postincrement |
| * pd : address register indirect with predecrement |
| * di : address register indirect with displacement |
| * ix : address register indirect with index |
| * aw : absolute word |
| * al : absolute long |
| */ |
| |
| |
| static void d68000_invalid(m68k_info *info) |
| { |
| build_invalid(info, info->ir); |
| } |
| |
| static void d68000_illegal(m68k_info *info) |
| { |
| build_illegal(info, info->ir); |
| } |
| |
| static void d68000_1010(m68k_info *info) |
| { |
| build_invalid(info, info->ir); |
| } |
| |
| static void d68000_1111(m68k_info *info) |
| { |
| build_invalid(info, info->ir); |
| } |
| |
| static void d68000_abcd_rr(m68k_info *info) |
| { |
| build_rr(info, M68K_INS_ABCD, 1, 0); |
| } |
| |
| static void d68000_abcd_mm(m68k_info *info) |
| { |
| build_mm(info, M68K_INS_ABCD, 1, 0); |
| } |
| |
| static void d68000_add_er_8(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_ADD, 1); |
| } |
| |
| static void d68000_add_er_16(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_ADD, 2); |
| } |
| |
| static void d68000_add_er_32(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_ADD, 4); |
| } |
| |
| static void d68000_add_re_8(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_ADD, 1); |
| } |
| |
| static void d68000_add_re_16(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_ADD, 2); |
| } |
| |
| static void d68000_add_re_32(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_ADD, 4); |
| } |
| |
| static void d68000_adda_16(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_ADDA, 2); |
| } |
| |
| static void d68000_adda_32(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_ADDA, 4); |
| } |
| |
| static void d68000_addi_8(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ADDI, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_addi_16(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ADDI, 2, read_imm_16(info)); |
| } |
| |
| static void d68000_addi_32(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ADDI, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_addq_8(m68k_info *info) |
| { |
| build_3bit_ea(info, M68K_INS_ADDQ, 1); |
| } |
| |
| static void d68000_addq_16(m68k_info *info) |
| { |
| build_3bit_ea(info, M68K_INS_ADDQ, 2); |
| } |
| |
| static void d68000_addq_32(m68k_info *info) |
| { |
| build_3bit_ea(info, M68K_INS_ADDQ, 4); |
| } |
| |
| static void d68000_addx_rr_8(m68k_info *info) |
| { |
| build_rr(info, M68K_INS_ADDX, 1, 0); |
| } |
| |
| static void d68000_addx_rr_16(m68k_info *info) |
| { |
| build_rr(info, M68K_INS_ADDX, 2, 0); |
| } |
| |
| static void d68000_addx_rr_32(m68k_info *info) |
| { |
| build_rr(info, M68K_INS_ADDX, 4, 0); |
| } |
| |
| static void d68000_addx_mm_8(m68k_info *info) |
| { |
| build_mm(info, M68K_INS_ADDX, 1, 0); |
| } |
| |
| static void d68000_addx_mm_16(m68k_info *info) |
| { |
| build_mm(info, M68K_INS_ADDX, 2, 0); |
| } |
| |
| static void d68000_addx_mm_32(m68k_info *info) |
| { |
| build_mm(info, M68K_INS_ADDX, 4, 0); |
| } |
| |
| static void d68000_and_er_8(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_AND, 1); |
| } |
| |
| static void d68000_and_er_16(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_AND, 2); |
| } |
| |
| static void d68000_and_er_32(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_AND, 4); |
| } |
| |
| static void d68000_and_re_8(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_AND, 1); |
| } |
| |
| static void d68000_and_re_16(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_AND, 2); |
| } |
| |
| static void d68000_and_re_32(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_AND, 4); |
| } |
| |
| static void d68000_andi_8(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ANDI, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_andi_16(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ANDI, 2, read_imm_16(info)); |
| } |
| |
| static void d68000_andi_32(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ANDI, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_andi_to_ccr(m68k_info *info) |
| { |
| build_imm_special_reg(info, M68K_INS_ANDI, read_imm_8(info), 1, M68K_REG_CCR); |
| } |
| |
| static void d68000_andi_to_sr(m68k_info *info) |
| { |
| build_imm_special_reg(info, M68K_INS_ANDI, read_imm_16(info), 2, M68K_REG_SR); |
| } |
| |
| static void d68000_asr_s_8(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASR, 1); |
| } |
| |
| static void d68000_asr_s_16(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASR, 2); |
| } |
| |
| static void d68000_asr_s_32(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASR, 4); |
| } |
| |
| static void d68000_asr_r_8(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASR, 1); |
| } |
| |
| static void d68000_asr_r_16(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASR, 2); |
| } |
| |
| static void d68000_asr_r_32(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASR, 4); |
| } |
| |
| static void d68000_asr_ea(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_ASR, 2); |
| } |
| |
| static void d68000_asl_s_8(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASL, 1); |
| } |
| |
| static void d68000_asl_s_16(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASL, 2); |
| } |
| |
| static void d68000_asl_s_32(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_ASL, 4); |
| } |
| |
| static void d68000_asl_r_8(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASL, 1); |
| } |
| |
| static void d68000_asl_r_16(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASL, 2); |
| } |
| |
| static void d68000_asl_r_32(m68k_info *info) |
| { |
| build_r(info, M68K_INS_ASL, 4); |
| } |
| |
| static void d68000_asl_ea(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_ASL, 2); |
| } |
| |
| static void d68000_bcc_8(m68k_info *info) |
| { |
| build_bcc(info, 1, make_int_8(info->ir)); |
| } |
| |
| static void d68000_bcc_16(m68k_info *info) |
| { |
| build_bcc(info, 2, make_int_16(read_imm_16(info))); |
| } |
| |
| static void d68020_bcc_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bcc(info, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_bchg_r(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_BCHG, 1); |
| } |
| |
| static void d68000_bchg_s(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_BCHG, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_bclr_r(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_BCLR, 1); |
| } |
| |
| static void d68000_bclr_s(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_BCLR, 1, read_imm_8(info)); |
| } |
| |
| static void d68010_bkpt(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_absolute_jump_with_immediate(info, M68K_INS_BKPT, 0, info->ir & 7); |
| } |
| |
| static void d68020_bfchg(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFCHG, false); |
| } |
| |
| |
| static void d68020_bfclr(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFCLR, false); |
| } |
| |
| static void d68020_bfexts(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFEXTS, true); |
| } |
| |
| static void d68020_bfextu(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFEXTU, true); |
| } |
| |
| static void d68020_bfffo(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFFFO, true); |
| } |
| |
| static void d68020_bfins(m68k_info *info) |
| { |
| cs_m68k* ext = &info->extension; |
| cs_m68k_op temp; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFINS, true); |
| |
| // a bit hacky but we need to flip the args on only this instruction |
| |
| temp = ext->operands[0]; |
| ext->operands[0] = ext->operands[1]; |
| ext->operands[1] = temp; |
| } |
| |
| static void d68020_bfset(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_bitfield_ins(info, M68K_INS_BFSET, false); |
| } |
| |
| static void d68020_bftst(m68k_info *info) |
| { |
| build_bitfield_ins(info, M68K_INS_BFTST, false); |
| } |
| |
| static void d68000_bra_8(m68k_info *info) |
| { |
| build_relative_branch(info, M68K_INS_BRA, 1, make_int_8(info->ir)); |
| } |
| |
| static void d68000_bra_16(m68k_info *info) |
| { |
| build_relative_branch(info, M68K_INS_BRA, 2, make_int_16(read_imm_16(info))); |
| } |
| |
| static void d68020_bra_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_relative_branch(info, M68K_INS_BRA, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_bset_r(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_BSET, 1); |
| } |
| |
| static void d68000_bset_s(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_BSET, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_bsr_8(m68k_info *info) |
| { |
| build_relative_branch(info, M68K_INS_BSR, 1, make_int_8(info->ir)); |
| } |
| |
| static void d68000_bsr_16(m68k_info *info) |
| { |
| build_relative_branch(info, M68K_INS_BSR, 2, make_int_16(read_imm_16(info))); |
| } |
| |
| static void d68020_bsr_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_relative_branch(info, M68K_INS_BSR, 4, peek_imm_32(info)); |
| } |
| |
| static void d68000_btst_r(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_BTST, 4); |
| } |
| |
| static void d68000_btst_s(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_BTST, 1, read_imm_8(info)); |
| } |
| |
| static void d68020_callm(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_ONLY); |
| build_imm_ea(info, M68K_INS_CALLM, 0, read_imm_8(info)); |
| } |
| |
| static void d68020_cas_8(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_d_d_ea(info, M68K_INS_CAS, 1); |
| } |
| |
| static void d68020_cas_16(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_d_d_ea(info, M68K_INS_CAS, 2); |
| } |
| |
| static void d68020_cas_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_d_d_ea(info, M68K_INS_CAS, 4); |
| } |
| |
| static void d68020_cas2_16(m68k_info *info) |
| { |
| build_cas2(info, 2); |
| } |
| |
| static void d68020_cas2_32(m68k_info *info) |
| { |
| build_cas2(info, 4); |
| } |
| |
| static void d68000_chk_16(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_CHK, 2); |
| } |
| |
| static void d68020_chk_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_er_1(info, M68K_INS_CHK, 4); |
| } |
| |
| static void d68020_chk2_cmp2_8(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_chk2_cmp2(info, 1); |
| } |
| |
| static void d68020_chk2_cmp2_16(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_chk2_cmp2(info, 2); |
| } |
| |
| static void d68020_chk2_cmp2_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_chk2_cmp2(info, 4); |
| } |
| |
| static void d68040_cinv(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| build_cpush_cinv(info, M68K_INS_CINVL); |
| } |
| |
| static void d68000_clr_8(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_CLR, 1); |
| } |
| |
| static void d68000_clr_16(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_CLR, 2); |
| } |
| |
| static void d68000_clr_32(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_CLR, 4); |
| } |
| |
| static void d68000_cmp_8(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_CMP, 1); |
| } |
| |
| static void d68000_cmp_16(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_CMP, 2); |
| } |
| |
| static void d68000_cmp_32(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_CMP, 4); |
| } |
| |
| static void d68000_cmpa_16(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_CMPA, 2); |
| } |
| |
| static void d68000_cmpa_32(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_CMPA, 4); |
| } |
| |
| static void d68000_cmpi_8(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_CMPI, 1, read_imm_8(info)); |
| } |
| |
| static void d68020_cmpi_pcdi_8(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 1, read_imm_8(info)); |
| } |
| |
| static void d68020_cmpi_pcix_8(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_cmpi_16(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_CMPI, 2, read_imm_16(info)); |
| } |
| |
| static void d68020_cmpi_pcdi_16(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 2, read_imm_16(info)); |
| } |
| |
| static void d68020_cmpi_pcix_16(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 2, read_imm_16(info)); |
| } |
| |
| static void d68000_cmpi_32(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_CMPI, 4, read_imm_32(info)); |
| } |
| |
| static void d68020_cmpi_pcdi_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 4, read_imm_32(info)); |
| } |
| |
| static void d68020_cmpi_pcix_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_imm_ea(info, M68K_INS_CMPI, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_cmpm_8(m68k_info *info) |
| { |
| build_pi_pi(info, M68K_INS_CMPM, 1); |
| } |
| |
| static void d68000_cmpm_16(m68k_info *info) |
| { |
| build_pi_pi(info, M68K_INS_CMPM, 2); |
| } |
| |
| static void d68000_cmpm_32(m68k_info *info) |
| { |
| build_pi_pi(info, M68K_INS_CMPM, 4); |
| } |
| |
| static void make_cpbcc_operand(cs_m68k_op* op, int size, int displacement) |
| { |
| op->address_mode = M68K_AM_BRANCH_DISPLACEMENT; |
| op->type = M68K_OP_BR_DISP; |
| op->br_disp.disp = displacement; |
| op->br_disp.disp_size = size; |
| } |
| |
| static void d68020_cpbcc_16(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k* ext; |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (info->ir & 0x2f); |
| |
| ext = build_init_op(info, M68K_INS_FBF, 1, 2); |
| op0 = &ext->operands[0]; |
| |
| make_cpbcc_operand(op0, M68K_OP_BR_DISP_SIZE_WORD, make_int_16(read_imm_16(info))); |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| set_insn_group(info, M68K_GRP_BRANCH_RELATIVE); |
| } |
| |
| static void d68020_cpbcc_32(m68k_info *info) |
| { |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (info->ir & 0x2f); |
| |
| ext = build_init_op(info, M68K_INS_FBF, 1, 4); |
| op0 = &ext->operands[0]; |
| |
| make_cpbcc_operand(op0, M68K_OP_BR_DISP_SIZE_LONG, read_imm_32(info)); |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| set_insn_group(info, M68K_GRP_BRANCH_RELATIVE); |
| } |
| |
| static void d68020_cpdbcc(m68k_info *info) |
| { |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| uint ext1, ext2; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| ext1 = read_imm_16(info); |
| ext2 = read_imm_16(info); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (ext1 & 0x2f); |
| |
| ext = build_init_op(info, M68K_INS_FDBF, 2, 0); |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->reg = M68K_REG_D0 + (info->ir & 7); |
| |
| make_cpbcc_operand(op1, M68K_OP_BR_DISP_SIZE_WORD, make_int_16(ext2) + 2); |
| |
| set_insn_group(info, M68K_GRP_JUMP); |
| set_insn_group(info, M68K_GRP_BRANCH_RELATIVE); |
| } |
| |
| static void fmove_fpcr(m68k_info *info, uint extension) |
| { |
| cs_m68k_op* special; |
| cs_m68k_op* op_ea; |
| |
| int regsel = (extension >> 10) & 0x7; |
| int dir = (extension >> 13) & 0x1; |
| |
| cs_m68k* ext = build_init_op(info, M68K_INS_FMOVE, 2, 4); |
| |
| special = &ext->operands[0]; |
| op_ea = &ext->operands[1]; |
| |
| if (!dir) { |
| cs_m68k_op* t = special; |
| special = op_ea; |
| op_ea = t; |
| } |
| |
| get_ea_mode_op(info, op_ea, info->ir, 4); |
| |
| if (regsel & 4) |
| special->reg = M68K_REG_FPCR; |
| else if (regsel & 2) |
| special->reg = M68K_REG_FPSR; |
| else if (regsel & 1) |
| special->reg = M68K_REG_FPIAR; |
| } |
| |
| static void fmovem(m68k_info *info, uint extension) |
| { |
| cs_m68k_op* op_reglist; |
| cs_m68k_op* op_ea; |
| int dir = (extension >> 13) & 0x1; |
| int mode = (extension >> 11) & 0x3; |
| uint reglist = extension & 0xff; |
| cs_m68k* ext = build_init_op(info, M68K_INS_FMOVEM, 2, 0); |
| |
| op_reglist = &ext->operands[0]; |
| op_ea = &ext->operands[1]; |
| |
| // flip args around |
| |
| if (!dir) { |
| cs_m68k_op* t = op_reglist; |
| op_reglist = op_ea; |
| op_ea = t; |
| } |
| |
| get_ea_mode_op(info, op_ea, info->ir, 0); |
| |
| switch (mode) { |
| case 1 : // Dynamic list in dn register |
| op_reglist->reg = M68K_REG_D0 + ((reglist >> 4) & 7); |
| break; |
| |
| case 0 : |
| op_reglist->address_mode = M68K_AM_NONE; |
| op_reglist->type = M68K_OP_REG_BITS; |
| op_reglist->register_bits = reglist << 16; |
| break; |
| |
| case 2 : // Static list |
| op_reglist->address_mode = M68K_AM_NONE; |
| op_reglist->type = M68K_OP_REG_BITS; |
| op_reglist->register_bits = ((uint32_t)reverse_bits_8(reglist)) << 16; |
| break; |
| } |
| } |
| |
| static void d68020_cpgen(m68k_info *info) |
| { |
| cs_m68k *ext; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| bool supports_single_op; |
| uint next; |
| int rm, src, dst, opmode; |
| |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| supports_single_op = true; |
| |
| next = read_imm_16(info); |
| |
| rm = (next >> 14) & 0x1; |
| src = (next >> 10) & 0x7; |
| dst = (next >> 7) & 0x7; |
| opmode = next & 0x3f; |
| |
| // special handling for fmovecr |
| |
| if (BITFIELD(info->ir, 5, 0) == 0 && BITFIELD(next, 15, 10) == 0x17) { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_FMOVECR, 2, 0); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->type = M68K_OP_IMM; |
| op0->imm = next & 0x3f; |
| |
| op1->reg = M68K_REG_FP0 + ((next >> 7) & 7); |
| |
| return; |
| } |
| |
| // deal with extended move stuff |
| |
| switch ((next >> 13) & 0x7) { |
| // fmovem fpcr |
| case 0x4: // FMOVEM ea, FPCR |
| case 0x5: // FMOVEM FPCR, ea |
| fmove_fpcr(info, next); |
| return; |
| |
| // fmovem list |
| case 0x6: |
| case 0x7: |
| fmovem(info, next); |
| return; |
| } |
| |
| // See comment bellow on why this is being done |
| |
| if ((next >> 6) & 1) |
| opmode &= ~4; |
| |
| // special handling of some instructions here |
| |
| switch (opmode) { |
| case 0x00: MCInst_setOpcode(info->inst, M68K_INS_FMOVE); supports_single_op = false; break; |
| case 0x01: MCInst_setOpcode(info->inst, M68K_INS_FINT); break; |
| case 0x02: MCInst_setOpcode(info->inst, M68K_INS_FSINH); break; |
| case 0x03: MCInst_setOpcode(info->inst, M68K_INS_FINTRZ); break; |
| case 0x04: MCInst_setOpcode(info->inst, M68K_INS_FSQRT); break; |
| case 0x06: MCInst_setOpcode(info->inst, M68K_INS_FLOGNP1); break; |
| case 0x08: MCInst_setOpcode(info->inst, M68K_INS_FETOXM1); break; |
| case 0x09: MCInst_setOpcode(info->inst, M68K_INS_FATANH); break; |
| case 0x0a: MCInst_setOpcode(info->inst, M68K_INS_FATAN); break; |
| case 0x0c: MCInst_setOpcode(info->inst, M68K_INS_FASIN); break; |
| case 0x0d: MCInst_setOpcode(info->inst, M68K_INS_FATANH); break; |
| case 0x0e: MCInst_setOpcode(info->inst, M68K_INS_FSIN); break; |
| case 0x0f: MCInst_setOpcode(info->inst, M68K_INS_FTAN); break; |
| case 0x10: MCInst_setOpcode(info->inst, M68K_INS_FETOX); break; |
| case 0x11: MCInst_setOpcode(info->inst, M68K_INS_FTWOTOX); break; |
| case 0x12: MCInst_setOpcode(info->inst, M68K_INS_FTENTOX); break; |
| case 0x14: MCInst_setOpcode(info->inst, M68K_INS_FLOGN); break; |
| case 0x15: MCInst_setOpcode(info->inst, M68K_INS_FLOG10); break; |
| case 0x16: MCInst_setOpcode(info->inst, M68K_INS_FLOG2); break; |
| case 0x18: MCInst_setOpcode(info->inst, M68K_INS_FABS); break; |
| case 0x19: MCInst_setOpcode(info->inst, M68K_INS_FCOSH); break; |
| case 0x1a: MCInst_setOpcode(info->inst, M68K_INS_FNEG); break; |
| case 0x1c: MCInst_setOpcode(info->inst, M68K_INS_FACOS); break; |
| case 0x1d: MCInst_setOpcode(info->inst, M68K_INS_FCOS); break; |
| case 0x1e: MCInst_setOpcode(info->inst, M68K_INS_FGETEXP); break; |
| case 0x1f: MCInst_setOpcode(info->inst, M68K_INS_FGETMAN); break; |
| case 0x20: MCInst_setOpcode(info->inst, M68K_INS_FDIV); supports_single_op = false; break; |
| case 0x21: MCInst_setOpcode(info->inst, M68K_INS_FMOD); supports_single_op = false; break; |
| case 0x22: MCInst_setOpcode(info->inst, M68K_INS_FADD); supports_single_op = false; break; |
| case 0x23: MCInst_setOpcode(info->inst, M68K_INS_FMUL); supports_single_op = false; break; |
| case 0x24: MCInst_setOpcode(info->inst, M68K_INS_FSGLDIV); supports_single_op = false; break; |
| case 0x25: MCInst_setOpcode(info->inst, M68K_INS_FREM); break; |
| case 0x26: MCInst_setOpcode(info->inst, M68K_INS_FSCALE); break; |
| case 0x27: MCInst_setOpcode(info->inst, M68K_INS_FSGLMUL); break; |
| case 0x28: MCInst_setOpcode(info->inst, M68K_INS_FSUB); supports_single_op = false; break; |
| case 0x38: MCInst_setOpcode(info->inst, M68K_INS_FCMP); supports_single_op = false; break; |
| case 0x3a: MCInst_setOpcode(info->inst, M68K_INS_FTST); break; |
| default: |
| break; |
| } |
| |
| // Some trickery here! It's not documented but if bit 6 is set this is a s/d opcode and then |
| // if bit 2 is set it's a d. As we already have set our opcode in the code above we can just |
| // offset it as the following 2 op codes (if s/d is supported) will always be directly after it |
| |
| if ((next >> 6) & 1) { |
| if ((next >> 2) & 1) |
| info->inst->Opcode += 2; |
| else |
| info->inst->Opcode += 1; |
| } |
| |
| ext = &info->extension; |
| |
| ext->op_count = 2; |
| ext->op_size.type = M68K_SIZE_TYPE_CPU; |
| ext->op_size.cpu_size = 0; |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| if (rm == 0 && supports_single_op && src == dst) { |
| ext->op_count = 1; |
| op0->reg = M68K_REG_FP0 + dst; |
| return; |
| } |
| |
| if (rm == 1) { |
| switch (src) { |
| case 0x00 : |
| ext->op_size.cpu_size = M68K_CPU_SIZE_LONG; |
| get_ea_mode_op(info, op0, info->ir, 4); |
| break; |
| |
| case 0x06 : |
| ext->op_size.cpu_size = M68K_CPU_SIZE_BYTE; |
| get_ea_mode_op(info, op0, info->ir, 1); |
| break; |
| |
| case 0x04 : |
| ext->op_size.cpu_size = M68K_CPU_SIZE_WORD; |
| get_ea_mode_op(info, op0, info->ir, 2); |
| break; |
| |
| case 0x01 : |
| ext->op_size.type = M68K_SIZE_TYPE_FPU; |
| ext->op_size.fpu_size = M68K_FPU_SIZE_SINGLE; |
| get_ea_mode_op(info, op0, info->ir, 4); |
| op0->type = M68K_OP_FP_SINGLE; |
| break; |
| |
| case 0x05: |
| ext->op_size.type = M68K_SIZE_TYPE_FPU; |
| ext->op_size.fpu_size = M68K_FPU_SIZE_DOUBLE; |
| get_ea_mode_op(info, op0, info->ir, 8); |
| op0->type = M68K_OP_FP_DOUBLE; |
| break; |
| |
| default : |
| ext->op_size.type = M68K_SIZE_TYPE_FPU; |
| ext->op_size.fpu_size = M68K_FPU_SIZE_EXTENDED; |
| break; |
| } |
| } else { |
| op0->reg = M68K_REG_FP0 + src; |
| } |
| |
| op1->reg = M68K_REG_FP0 + dst; |
| } |
| |
| static void d68020_cprestore(m68k_info *info) |
| { |
| cs_m68k* ext; |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| ext = build_init_op(info, M68K_INS_FRESTORE, 1, 0); |
| get_ea_mode_op(info, &ext->operands[0], info->ir, 1); |
| } |
| |
| static void d68020_cpsave(m68k_info *info) |
| { |
| cs_m68k* ext; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| ext = build_init_op(info, M68K_INS_FSAVE, 1, 0); |
| get_ea_mode_op(info, &ext->operands[0], info->ir, 1); |
| } |
| |
| static void d68020_cpscc(m68k_info *info) |
| { |
| cs_m68k* ext; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| ext = build_init_op(info, M68K_INS_FSF, 1, 1); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (read_imm_16(info) & 0x2f); |
| |
| get_ea_mode_op(info, &ext->operands[0], info->ir, 1); |
| } |
| |
| static void d68020_cptrapcc_0(m68k_info *info) |
| { |
| uint extension1; |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| extension1 = read_imm_16(info); |
| |
| build_init_op(info, M68K_INS_FTRAPF, 0, 0); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (extension1 & 0x2f); |
| } |
| |
| static void d68020_cptrapcc_16(m68k_info *info) |
| { |
| uint extension1, extension2; |
| cs_m68k_op* op0; |
| cs_m68k* ext; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| extension1 = read_imm_16(info); |
| extension2 = read_imm_16(info); |
| |
| ext = build_init_op(info, M68K_INS_FTRAPF, 1, 2); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (extension1 & 0x2f); |
| |
| op0 = &ext->operands[0]; |
| |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->type = M68K_OP_IMM; |
| op0->imm = extension2; |
| } |
| |
| static void d68020_cptrapcc_32(m68k_info *info) |
| { |
| uint extension1, extension2; |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| extension1 = read_imm_16(info); |
| extension2 = read_imm_32(info); |
| |
| ext = build_init_op(info, M68K_INS_FTRAPF, 1, 2); |
| |
| // these are all in row with the extension so just doing a add here is fine |
| info->inst->Opcode += (extension1 & 0x2f); |
| |
| op0 = &ext->operands[0]; |
| |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->type = M68K_OP_IMM; |
| op0->imm = extension2; |
| } |
| |
| static void d68040_cpush(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| build_cpush_cinv(info, M68K_INS_CPUSHL); |
| } |
| |
| static void d68000_dbra(m68k_info *info) |
| { |
| build_dbxx(info, M68K_INS_DBRA, 0, make_int_16(read_imm_16(info))); |
| } |
| |
| static void d68000_dbcc(m68k_info *info) |
| { |
| build_dbcc(info, 0, make_int_16(read_imm_16(info))); |
| } |
| |
| static void d68000_divs(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_DIVS, 2); |
| } |
| |
| static void d68000_divu(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_DIVU, 2); |
| } |
| |
| static void d68020_divl(m68k_info *info) |
| { |
| uint extension, insn_signed; |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| uint reg_0, reg_1; |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| extension = read_imm_16(info); |
| insn_signed = 0; |
| |
| if (BIT_B((extension))) |
| insn_signed = 1; |
| |
| ext = build_init_op(info, insn_signed ? M68K_INS_DIVS : M68K_INS_DIVU, 2, 4); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, 4); |
| |
| reg_0 = extension & 7; |
| reg_1 = (extension >> 12) & 7; |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->type = M68K_OP_REG_PAIR; |
| op1->reg_pair.reg_0 = reg_0; |
| op1->reg_pair.reg_1 = reg_1; |
| |
| if ((reg_0 == reg_1) || !BIT_A(extension)) { |
| op1->type = M68K_OP_REG; |
| op1->reg = M68K_REG_D0 + reg_1; |
| } |
| } |
| |
| static void d68000_eor_8(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_EOR, 1); |
| } |
| |
| static void d68000_eor_16(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_EOR, 2); |
| } |
| |
| static void d68000_eor_32(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_EOR, 4); |
| } |
| |
| static void d68000_eori_8(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_EORI, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_eori_16(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_EORI, 2, read_imm_16(info)); |
| } |
| |
| static void d68000_eori_32(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_EORI, 4, read_imm_32(info)); |
| } |
| |
| static void d68000_eori_to_ccr(m68k_info *info) |
| { |
| build_imm_special_reg(info, M68K_INS_EORI, read_imm_8(info), 1, M68K_REG_CCR); |
| } |
| |
| static void d68000_eori_to_sr(m68k_info *info) |
| { |
| build_imm_special_reg(info, M68K_INS_EORI, read_imm_16(info), 2, M68K_REG_SR); |
| } |
| |
| static void d68000_exg_dd(m68k_info *info) |
| { |
| build_r(info, M68K_INS_EXG, 4); |
| } |
| |
| static void d68000_exg_aa(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_EXG, 2, 4); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_A0 + ((info->ir >> 9) & 7); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_A0 + (info->ir & 7); |
| } |
| |
| static void d68000_exg_da(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_EXG, 2, 4); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_A0 + (info->ir & 7); |
| } |
| |
| static void d68000_ext_16(m68k_info *info) |
| { |
| build_d(info, M68K_INS_EXT, 2); |
| } |
| |
| static void d68000_ext_32(m68k_info *info) |
| { |
| build_d(info, M68K_INS_EXT, 4); |
| } |
| |
| static void d68020_extb_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_d(info, M68K_INS_EXTB, 4); |
| } |
| |
| static void d68000_jmp(m68k_info *info) |
| { |
| cs_m68k* ext = build_init_op(info, M68K_INS_JMP, 1, 0); |
| set_insn_group(info, M68K_GRP_JUMP); |
| get_ea_mode_op(info, &ext->operands[0], info->ir, 4); |
| } |
| |
| static void d68000_jsr(m68k_info *info) |
| { |
| cs_m68k* ext = build_init_op(info, M68K_INS_JSR, 1, 0); |
| set_insn_group(info, M68K_GRP_JUMP); |
| get_ea_mode_op(info, &ext->operands[0], info->ir, 4); |
| } |
| |
| static void d68000_lea(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_LEA, 4); |
| } |
| |
| static void d68000_link_16(m68k_info *info) |
| { |
| build_link(info, read_imm_16(info), 2); |
| } |
| |
| static void d68020_link_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| build_link(info, read_imm_32(info), 4); |
| } |
| |
| static void d68000_lsr_s_8(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSR, 1); |
| } |
| |
| static void d68000_lsr_s_16(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSR, 2); |
| } |
| |
| static void d68000_lsr_s_32(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSR, 4); |
| } |
| |
| static void d68000_lsr_r_8(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSR, 1); |
| } |
| |
| static void d68000_lsr_r_16(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSR, 2); |
| } |
| |
| static void d68000_lsr_r_32(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSR, 4); |
| } |
| |
| static void d68000_lsr_ea(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_LSR, 2); |
| } |
| |
| static void d68000_lsl_s_8(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSL, 1); |
| } |
| |
| static void d68000_lsl_s_16(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSL, 2); |
| } |
| |
| static void d68000_lsl_s_32(m68k_info *info) |
| { |
| build_3bit_d(info, M68K_INS_LSL, 4); |
| } |
| |
| static void d68000_lsl_r_8(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSL, 1); |
| } |
| |
| static void d68000_lsl_r_16(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSL, 2); |
| } |
| |
| static void d68000_lsl_r_32(m68k_info *info) |
| { |
| build_r(info, M68K_INS_LSL, 4); |
| } |
| |
| static void d68000_lsl_ea(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_LSL, 2); |
| } |
| |
| static void d68000_move_8(m68k_info *info) |
| { |
| build_ea_ea(info, M68K_INS_MOVE, 1); |
| } |
| |
| static void d68000_move_16(m68k_info *info) |
| { |
| build_ea_ea(info, M68K_INS_MOVE, 2); |
| } |
| |
| static void d68000_move_32(m68k_info *info) |
| { |
| build_ea_ea(info, M68K_INS_MOVE, 4); |
| } |
| |
| static void d68000_movea_16(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_MOVEA, 2); |
| } |
| |
| static void d68000_movea_32(m68k_info *info) |
| { |
| build_ea_a(info, M68K_INS_MOVEA, 4); |
| } |
| |
| static void d68000_move_to_ccr(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE, 2, 2); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, 1); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_CCR; |
| } |
| |
| static void d68010_move_fr_ccr(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext; |
| |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| |
| ext = build_init_op(info, M68K_INS_MOVE, 2, 2); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_CCR; |
| |
| get_ea_mode_op(info, op1, info->ir, 1); |
| } |
| |
| static void d68000_move_fr_sr(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE, 2, 2); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_SR; |
| |
| get_ea_mode_op(info, op1, info->ir, 2); |
| } |
| |
| static void d68000_move_to_sr(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE, 2, 2); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, 2); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_SR; |
| } |
| |
| static void d68000_move_fr_usp(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE, 2, 0); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_USP; |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_A0 + (info->ir & 7); |
| } |
| |
| static void d68000_move_to_usp(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVE, 2, 0); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->address_mode = M68K_AM_NONE; |
| op0->reg = M68K_REG_A0 + (info->ir & 7); |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->reg = M68K_REG_USP; |
| } |
| |
| static void d68010_movec(m68k_info *info) |
| { |
| uint extension; |
| m68k_reg reg; |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| |
| |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| |
| extension = read_imm_16(info); |
| reg = M68K_REG_INVALID; |
| |
| ext = build_init_op(info, M68K_INS_MOVEC, 2, 0); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| switch (extension & 0xfff) { |
| case 0x000: reg = M68K_REG_SFC; break; |
| case 0x001: reg = M68K_REG_DFC; break; |
| case 0x800: reg = M68K_REG_USP; break; |
| case 0x801: reg = M68K_REG_VBR; break; |
| case 0x002: reg = M68K_REG_CACR; break; |
| case 0x802: reg = M68K_REG_CAAR; break; |
| case 0x803: reg = M68K_REG_MSP; break; |
| case 0x804: reg = M68K_REG_ISP; break; |
| case 0x003: reg = M68K_REG_TC; break; |
| case 0x004: reg = M68K_REG_ITT0; break; |
| case 0x005: reg = M68K_REG_ITT1; break; |
| case 0x006: reg = M68K_REG_DTT0; break; |
| case 0x007: reg = M68K_REG_DTT1; break; |
| case 0x805: reg = M68K_REG_MMUSR; break; |
| case 0x806: reg = M68K_REG_URP; break; |
| case 0x807: reg = M68K_REG_SRP; break; |
| } |
| |
| if (BIT_1(info->ir)) { |
| op0->reg = (BIT_F(extension) ? M68K_REG_A0 : M68K_REG_D0) + ((extension >> 12) & 7); |
| op1->reg = reg; |
| } else { |
| op0->reg = reg; |
| op1->reg = (BIT_F(extension) ? M68K_REG_A0 : M68K_REG_D0) + ((extension >> 12) & 7); |
| } |
| } |
| |
| static void d68000_movem_pd_16(m68k_info *info) |
| { |
| build_movem_re(info, M68K_INS_MOVEM, 2); |
| } |
| |
| static void d68000_movem_pd_32(m68k_info *info) |
| { |
| build_movem_re(info, M68K_INS_MOVEM, 4); |
| } |
| |
| static void d68000_movem_er_16(m68k_info *info) |
| { |
| build_movem_er(info, M68K_INS_MOVEM, 2); |
| } |
| |
| static void d68000_movem_er_32(m68k_info *info) |
| { |
| build_movem_er(info, M68K_INS_MOVEM, 4); |
| } |
| |
| static void d68000_movem_re_16(m68k_info *info) |
| { |
| build_movem_re(info, M68K_INS_MOVEM, 2); |
| } |
| |
| static void d68000_movem_re_32(m68k_info *info) |
| { |
| build_movem_re(info, M68K_INS_MOVEM, 4); |
| } |
| |
| static void d68000_movep_re_16(m68k_info *info) |
| { |
| build_movep_re(info, 2); |
| } |
| |
| static void d68000_movep_re_32(m68k_info *info) |
| { |
| build_movep_re(info, 4); |
| } |
| |
| static void d68000_movep_er_16(m68k_info *info) |
| { |
| build_movep_er(info, 2); |
| } |
| |
| static void d68000_movep_er_32(m68k_info *info) |
| { |
| build_movep_er(info, 4); |
| } |
| |
| static void d68010_moves_8(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_moves(info, 1); |
| } |
| |
| static void d68010_moves_16(m68k_info *info) |
| { |
| //uint extension; |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_moves(info, 2); |
| } |
| |
| static void d68010_moves_32(m68k_info *info) |
| { |
| LIMIT_CPU_TYPES(info, M68010_PLUS); |
| build_moves(info, 4); |
| } |
| |
| static void d68000_moveq(m68k_info *info) |
| { |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| |
| cs_m68k* ext = build_init_op(info, M68K_INS_MOVEQ, 2, 0); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| op0->type = M68K_OP_IMM; |
| op0->address_mode = M68K_AM_IMMEDIATE; |
| op0->imm = (info->ir & 0xff); |
| |
| op1->address_mode = M68K_AM_REG_DIRECT_DATA; |
| op1->reg = M68K_REG_D0 + ((info->ir >> 9) & 7); |
| } |
| |
| static void d68040_move16_pi_pi(m68k_info *info) |
| { |
| int data[] = { info->ir & 7, (read_imm_16(info) >> 12) & 7 }; |
| int modes[] = { M68K_AM_REGI_ADDR_POST_INC, M68K_AM_REGI_ADDR_POST_INC }; |
| |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| |
| build_move16(info, data, modes); |
| } |
| |
| static void d68040_move16_pi_al(m68k_info *info) |
| { |
| int data[] = { info->ir & 7, read_imm_32(info) }; |
| int modes[] = { M68K_AM_REGI_ADDR_POST_INC, M68K_AM_ABSOLUTE_DATA_LONG }; |
| |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| |
| build_move16(info, data, modes); |
| } |
| |
| static void d68040_move16_al_pi(m68k_info *info) |
| { |
| int data[] = { read_imm_32(info), info->ir & 7 }; |
| int modes[] = { M68K_AM_ABSOLUTE_DATA_LONG, M68K_AM_REGI_ADDR_POST_INC }; |
| |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| |
| build_move16(info, data, modes); |
| } |
| |
| static void d68040_move16_ai_al(m68k_info *info) |
| { |
| int data[] = { info->ir & 7, read_imm_32(info) }; |
| int modes[] = { M68K_AM_REG_DIRECT_ADDR, M68K_AM_ABSOLUTE_DATA_LONG }; |
| |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| |
| build_move16(info, data, modes); |
| } |
| |
| static void d68040_move16_al_ai(m68k_info *info) |
| { |
| int data[] = { read_imm_32(info), info->ir & 7 }; |
| int modes[] = { M68K_AM_ABSOLUTE_DATA_LONG, M68K_AM_REG_DIRECT_ADDR }; |
| |
| LIMIT_CPU_TYPES(info, M68040_PLUS); |
| |
| build_move16(info, data, modes); |
| } |
| |
| static void d68000_muls(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_MULS, 2); |
| } |
| |
| static void d68000_mulu(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_MULU, 2); |
| } |
| |
| static void d68020_mull(m68k_info *info) |
| { |
| uint extension, insn_signed; |
| cs_m68k* ext; |
| cs_m68k_op* op0; |
| cs_m68k_op* op1; |
| uint reg_0, reg_1; |
| |
| |
| LIMIT_CPU_TYPES(info, M68020_PLUS); |
| |
| extension = read_imm_16(info); |
| insn_signed = 0; |
| |
| if (BIT_B((extension))) |
| insn_signed = 1; |
| |
| ext = build_init_op(info, insn_signed ? M68K_INS_MULS : M68K_INS_MULU, 2, 4); |
| |
| op0 = &ext->operands[0]; |
| op1 = &ext->operands[1]; |
| |
| get_ea_mode_op(info, op0, info->ir, 4); |
| |
| reg_0 = extension & 7; |
| reg_1 = (extension >> 12) & 7; |
| |
| op1->address_mode = M68K_AM_NONE; |
| op1->type = M68K_OP_REG_PAIR; |
| op1->reg_pair.reg_0 = reg_0; |
| op1->reg_pair.reg_1 = reg_1; |
| |
| if (!BIT_A(extension)) { |
| op1->type = M68K_OP_REG; |
| op1->reg = M68K_REG_D0 + reg_1; |
| } |
| } |
| |
| static void d68000_nbcd(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NBCD, 1); |
| } |
| |
| static void d68000_neg_8(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEG, 1); |
| } |
| |
| static void d68000_neg_16(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEG, 2); |
| } |
| |
| static void d68000_neg_32(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEG, 4); |
| } |
| |
| static void d68000_negx_8(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEGX, 1); |
| } |
| |
| static void d68000_negx_16(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEGX, 2); |
| } |
| |
| static void d68000_negx_32(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NEGX, 4); |
| } |
| |
| static void d68000_nop(m68k_info *info) |
| { |
| MCInst_setOpcode(info->inst, M68K_INS_NOP); |
| } |
| |
| static void d68000_not_8(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NOT, 1); |
| } |
| |
| static void d68000_not_16(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NOT, 2); |
| } |
| |
| static void d68000_not_32(m68k_info *info) |
| { |
| build_ea(info, M68K_INS_NOT, 4); |
| } |
| |
| static void d68000_or_er_8(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_OR, 1); |
| } |
| |
| static void d68000_or_er_16(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_OR, 2); |
| } |
| |
| static void d68000_or_er_32(m68k_info *info) |
| { |
| build_er_1(info, M68K_INS_OR, 4); |
| } |
| |
| static void d68000_or_re_8(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_OR, 1); |
| } |
| |
| static void d68000_or_re_16(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_OR, 2); |
| } |
| |
| static void d68000_or_re_32(m68k_info *info) |
| { |
| build_re_1(info, M68K_INS_OR, 4); |
| } |
| |
| static void d68000_ori_8(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ORI, 1, read_imm_8(info)); |
| } |
| |
| static void d68000_ori_16(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ORI, 2, read_imm_16(info)); |
| } |
| |
| static void d68000_ori_32(m68k_info *info) |
| { |
| build_imm_ea(info, M68K_INS_ORI, 4, read_imm_32(info)); |
| } |
| |
| |
