Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 2318 insertions, 0 deletions

diff --git a/capstone/arch/M680X/M680XDisassembler.c b/capstone/arch/M680X/M680XDisassembler.c
new file mode 100644
index 000000000..0d7a8864f
--- /dev/null
+++ b/capstone/arch/M680X/M680XDisassembler.c
@@ -0,0 +1,2318 @@
+/* Capstone Disassembly Engine */
+/* M680X Backend by Wolfgang Schwotzer <wolfgang.schwotzer@gmx.net> 2017 */
+
+/* ======================================================================== */
+/* ================================ 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 "M680XInstPrinter.h"
+#include "M680XDisassembler.h"
+#include "M680XDisassemblerInternals.h"
+
+#ifdef CAPSTONE_HAS_M680X
+
+#ifndef DECL_SPEC
+#ifdef _MSC_VER
+#define DECL_SPEC __cdecl
+#else
+#define DECL_SPEC
+#endif  // _MSC_VER
+#endif  // DECL_SPEC
+
+/* ======================================================================== */
+/* ============================ GENERAL DEFINES =========================== */
+/* ======================================================================== */
+
+/* ======================================================================== */
+/* =============================== PROTOTYPES ============================= */
+/* ======================================================================== */
+
+typedef enum insn_hdlr_id {
+	illgl_hid,
+	rel8_hid,
+	rel16_hid,
+	imm8_hid,
+	imm16_hid,
+	imm32_hid,
+	dir_hid,
+	ext_hid,
+	idxX_hid,
+	idxY_hid,
+	idx09_hid,
+	inh_hid,
+	rr09_hid,
+	rbits_hid,
+	bitmv_hid,
+	tfm_hid,
+	opidx_hid,
+	opidxdr_hid,
+	idxX0_hid,
+	idxX16_hid,
+	imm8rel_hid,
+	idxS_hid,
+	idxS16_hid,
+	idxXp_hid,
+	idxX0p_hid,
+	idx12_hid,
+	idx12s_hid,
+	rr12_hid,
+	loop_hid,
+	index_hid,
+	imm8i12x_hid,
+	imm16i12x_hid,
+	exti12x_hid,
+	HANDLER_ID_ENDING,
+} insn_hdlr_id;
+
+// Access modes for the first 4 operands. If there are more than
+// four operands they use the same access mode as the 4th operand.
+//
+// u: unchanged
+// r: (r)read access
+// w: (w)write access
+// m: (m)odify access (= read + write)
+//
+typedef enum e_access_mode {
+
+	uuuu,
+	rrrr,
+	wwww,
+	rwww,
+	rrrm,
+	rmmm,
+	wrrr,
+	mrrr,
+	mwww,
+	mmmm,
+	mwrr,
+	mmrr,
+	wmmm,
+	rruu,
+	muuu,
+	ACCESS_MODE_ENDING,
+} e_access_mode;
+
+// Access type values are compatible with enum cs_ac_type:
+typedef enum e_access {
+	UNCHANGED = CS_AC_INVALID,
+	READ = CS_AC_READ,
+	WRITE = CS_AC_WRITE,
+	MODIFY = (CS_AC_READ | CS_AC_WRITE),
+} e_access;
+
+/* Properties of one instruction in PAGE1 (without prefix) */
+typedef struct inst_page1 {
+	unsigned insn : 9;        // A value of type m680x_insn
+	unsigned handler_id1 : 6; // Type insn_hdlr_id, first instr. handler id
+	unsigned handler_id2 : 6; // Type insn_hdlr_id, second instr. handler id
+} inst_page1;
+
+/* Properties of one instruction in any other PAGE X */
+typedef struct inst_pageX {
+	unsigned opcode : 8;      // The opcode byte
+	unsigned insn : 9;        // A value of type m680x_insn
+	unsigned handler_id1 : 6; // Type insn_hdlr_id, first instr. handler id
+	unsigned handler_id2 : 6; // Type insn_hdlr_id, second instr. handler id
+} inst_pageX;
+
+typedef struct insn_props {
+	unsigned group : 4;
+	unsigned access_mode : 5; // A value of type e_access_mode
+	unsigned reg0 : 5;        // A value of type m680x_reg
+	unsigned reg1 : 5;        // A value of type m680x_reg
+	bool cc_modified : 1;
+	bool update_reg_access : 1;
+} insn_props;
+
+#include "m6800.inc"
+#include "m6801.inc"
+#include "hd6301.inc"
+#include "m6811.inc"
+#include "cpu12.inc"
+#include "m6805.inc"
+#include "m6808.inc"
+#include "hcs08.inc"
+#include "m6809.inc"
+#include "hd6309.inc"
+
+#include "insn_props.inc"
+
+//////////////////////////////////////////////////////////////////////////////
+
+// M680X instuctions have 1 up to 8 bytes (CPU12: MOVW IDX2,IDX2).
+// A reader is needed to read a byte or word from a given memory address.
+// See also X86 reader(...)
+static bool read_byte(const m680x_info *info, uint8_t *byte, uint16_t address)
+{
+	if (address < info->offset ||
+		(uint32_t)(address - info->offset) >= info->size)
+		// out of code buffer range
+		return false;
+
+	*byte = info->code[address - info->offset];
+
+	return true;
+}
+
+static bool read_byte_sign_extended(const m680x_info *info, int16_t *word,
+	uint16_t address)
+{
+	if (address < info->offset ||
+		(uint32_t)(address - info->offset) >= info->size)
+		// out of code buffer range
+		return false;
+
+	*word = (int16_t) info->code[address - info->offset];
+
+	if (*word & 0x80)
+		*word |= 0xFF00;
+
+	return true;
+}
+
+static bool read_word(const m680x_info *info, uint16_t *word, uint16_t address)
+{
+	if (address < info->offset ||
+		(uint32_t)(address + 1 - info->offset) >= info->size)
+		// out of code buffer range
+		return false;
+
+	*word = (uint16_t)info->code[address - info->offset] << 8;
+	*word |= (uint16_t)info->code[address + 1 - info->offset];
+
+	return true;
+}
+
+static bool read_sdword(const m680x_info *info, int32_t *sdword,
+	uint16_t address)
+{
+	if (address < info->offset ||
+		(uint32_t)(address + 3 - info->offset) >= info->size)
+		// out of code buffer range
+		return false;
+
+	*sdword = (uint32_t)info->code[address - info->offset] << 24;
+	*sdword |= (uint32_t)info->code[address + 1 - info->offset] << 16;
+	*sdword |= (uint32_t)info->code[address + 2 - info->offset] << 8;
+	*sdword |= (uint32_t)info->code[address + 3 - info->offset];
+
+	return true;
+}
+
+// For PAGE2 and PAGE3 opcodes when using an an array of inst_page1 most
+// entries have M680X_INS_ILLGL. To avoid wasting memory an inst_pageX is
+// used which contains the opcode. Using a binary search for the right opcode
+// is much faster (= O(log n) ) in comparison to a linear search ( = O(n) ).
+static int binary_search(const inst_pageX *const inst_pageX_table,
+	size_t table_size, unsigned int opcode)
+{
+	// As part of the algorithm last may get negative.
+	// => signed integer has to be used.
+	int first = 0;
+	int last = (int)table_size - 1;
+	int middle = (first + last) / 2;
+
+	while (first <= last) {
+		if (inst_pageX_table[middle].opcode < opcode) {
+			first = middle + 1;
+		}
+		else if (inst_pageX_table[middle].opcode == opcode) {
+			return middle;  /* item found */
+		}
+		else
+			last = middle - 1;
+
+		middle = (first + last) / 2;
+	}
+
+	if (first > last)
+		return -1;  /* item not found */
+
+	return -2;
+}
+
+void M680X_get_insn_id(cs_struct *handle, cs_insn *insn, unsigned int id)
+{
+	const m680x_info *const info = (const m680x_info *)handle->printer_info;
+	const cpu_tables *cpu = info->cpu;
+	uint8_t insn_prefix = (id >> 8) & 0xff;
+	// opcode is the first instruction byte without the prefix.
+	uint8_t opcode = id & 0xff;
+	int index;
+	int i;
+
+	insn->id = M680X_INS_ILLGL;
+
+	for (i = 0; i < ARR_SIZE(cpu->pageX_prefix); ++i) {
+		if (cpu->pageX_table_size[i] == 0 ||
+			(cpu->inst_pageX_table[i] == NULL))
+			break;
+
+		if (cpu->pageX_prefix[i] == insn_prefix) {
+			index = binary_search(cpu->inst_pageX_table[i],
+					cpu->pageX_table_size[i], opcode);
+			insn->id = (index >= 0) ?
+				cpu->inst_pageX_table[i][index].insn :
+				M680X_INS_ILLGL;
+			return;
+		}
+	}
+
+	if (insn_prefix != 0)
+		return;
+
+	insn->id = cpu->inst_page1_table[id].insn;
+
+	if (insn->id != M680X_INS_ILLGL)
+		return;
+
+	// Check if opcode byte is present in an overlay table
+	for (i = 0; i < ARR_SIZE(cpu->overlay_table_size); ++i) {
+		if (cpu->overlay_table_size[i] == 0 ||
+			(cpu->inst_overlay_table[i] == NULL))
+			break;
+
+		if ((index = binary_search(cpu->inst_overlay_table[i],
+						cpu->overlay_table_size[i],
+						opcode)) >= 0) {
+			insn->id = cpu->inst_overlay_table[i][index].insn;
+			return;
+		}
+	}
+}
+
+static void add_insn_group(cs_detail *detail, m680x_group_type group)
+{
+	if (detail != NULL &&
+		(group != M680X_GRP_INVALID) && (group != M680X_GRP_ENDING))
+		detail->groups[detail->groups_count++] = (uint8_t)group;
+}
+
+static bool exists_reg_list(uint16_t *regs, uint8_t count, m680x_reg reg)
+{
+	uint8_t i;
+
+	for (i = 0; i < count; ++i) {
+		if (regs[i] == (uint16_t)reg)
+			return true;
+	}
+
+	return false;
+}
+
+static void add_reg_to_rw_list(MCInst *MI, m680x_reg reg, e_access access)
+{
+	cs_detail *detail = MI->flat_insn->detail;
+
+	if (detail == NULL || (reg == M680X_REG_INVALID))
+		return;
+
+	switch (access) {
+	case MODIFY:
+		if (!exists_reg_list(detail->regs_read,
+				detail->regs_read_count, reg))
+			detail->regs_read[detail->regs_read_count++] =
+				(uint16_t)reg;
+
+	// intentionally fall through
+
+	case WRITE:
+		if (!exists_reg_list(detail->regs_write,
+				detail->regs_write_count, reg))
+			detail->regs_write[detail->regs_write_count++] =
+				(uint16_t)reg;
+
+		break;
+
+	case READ:
+		if (!exists_reg_list(detail->regs_read,
+				detail->regs_read_count, reg))
+			detail->regs_read[detail->regs_read_count++] =
+				(uint16_t)reg;
+
+		break;
+
+	case UNCHANGED:
+	default:
+		break;
+	}
+}
+
+static void update_am_reg_list(MCInst *MI, m680x_info *info, cs_m680x_op *op,
+	e_access access)
+{
+	if (MI->flat_insn->detail == NULL)
+		return;
+
+	switch (op->type) {
+	case M680X_OP_REGISTER:
+		add_reg_to_rw_list(MI, op->reg, access);
+		break;
+
+	case M680X_OP_INDEXED:
+		add_reg_to_rw_list(MI, op->idx.base_reg, READ);
+
+		if (op->idx.base_reg == M680X_REG_X &&
+			info->cpu->reg_byte_size[M680X_REG_H])
+			add_reg_to_rw_list(MI, M680X_REG_H, READ);
+
+
+		if (op->idx.offset_reg != M680X_REG_INVALID)
+			add_reg_to_rw_list(MI, op->idx.offset_reg, READ);
+
+		if (op->idx.inc_dec) {
+			add_reg_to_rw_list(MI, op->idx.base_reg, WRITE);
+
+			if (op->idx.base_reg == M680X_REG_X &&
+				info->cpu->reg_byte_size[M680X_REG_H])
+				add_reg_to_rw_list(MI, M680X_REG_H, WRITE);
+		}
+
+		break;
+
+	default:
+		break;
+	}
+}
+
+static const e_access g_access_mode_to_access[4][15] = {
+	{
+		UNCHANGED, READ, WRITE, READ,  READ, READ,   WRITE, MODIFY,
+		MODIFY, MODIFY, MODIFY, MODIFY, WRITE, READ, MODIFY,
+	},
+	{
+		UNCHANGED, READ, WRITE, WRITE, READ, MODIFY, READ,  READ,
+		WRITE, MODIFY, WRITE, MODIFY, MODIFY, READ, UNCHANGED,
+	},
+	{
+		UNCHANGED, READ, WRITE, WRITE, READ, MODIFY, READ,  READ,
+		WRITE, MODIFY, READ, READ, MODIFY, UNCHANGED, UNCHANGED,
+	},
+	{
+		UNCHANGED, READ, WRITE, WRITE, MODIFY, MODIFY, READ, READ,
+		WRITE, MODIFY, READ, READ, MODIFY, UNCHANGED, UNCHANGED,
+	},
+};
+
+static e_access get_access(int operator_index, e_access_mode access_mode)
+{
+	int idx = (operator_index > 3) ? 3 : operator_index;
+
+	return g_access_mode_to_access[idx][access_mode];
+}
+
+static void build_regs_read_write_counts(MCInst *MI, m680x_info *info,
+	e_access_mode access_mode)
+{
+	cs_m680x *m680x = &info->m680x;
+	int i;
+
+	if (MI->flat_insn->detail == NULL || (!m680x->op_count))
+		return;
+
+	for (i = 0; i < m680x->op_count; ++i) {
+
+		e_access access = get_access(i, access_mode);
+		update_am_reg_list(MI, info, &m680x->operands[i], access);
+	}
+}
+
+static void add_operators_access(MCInst *MI, m680x_info *info,
+	e_access_mode access_mode)
+{
+	cs_m680x *m680x = &info->m680x;
+	int offset = 0;
+	int i;
+
+	if (MI->flat_insn->detail == NULL || (!m680x->op_count) ||
+		(access_mode == uuuu))
+		return;
+
+	for (i = 0; i < m680x->op_count; ++i) {
+		e_access access;
+
+		// Ugly fix: MULD has a register operand, an immediate operand
+		// AND an implicitly changed register W
+		if (info->insn == M680X_INS_MULD && (i == 1))
+			offset = 1;
+
+		access = get_access(i + offset, access_mode);
+		m680x->operands[i].access = access;
+	}
+}
+
+typedef struct insn_to_changed_regs {
+	m680x_insn insn;
+	e_access_mode access_mode;
+	m680x_reg regs[10];
+} insn_to_changed_regs;
+
+static void set_changed_regs_read_write_counts(MCInst *MI, m680x_info *info)
+{
+	//TABLE
+#define EOL M680X_REG_INVALID
+	static const insn_to_changed_regs changed_regs[] = {
+		{ M680X_INS_BSR, mmmm, { M680X_REG_S, EOL } },
+		{ M680X_INS_CALL, mmmm, { M680X_REG_S, EOL } },
+		{
+			M680X_INS_CWAI, mrrr, {
+				M680X_REG_S, M680X_REG_PC, M680X_REG_U,
+				M680X_REG_Y, M680X_REG_X, M680X_REG_DP,
+				M680X_REG_D, M680X_REG_CC, EOL
+			},
+		},
+		{ M680X_INS_DAA, mrrr, { M680X_REG_A, EOL } },
+		{
+			M680X_INS_DIV, mmrr, {
+				M680X_REG_A, M680X_REG_H, M680X_REG_X, EOL
+			}
+		},
+		{
+			M680X_INS_EDIV, mmrr, {
+				M680X_REG_D, M680X_REG_Y, M680X_REG_X, EOL
+			}
+		},
+		{
+			M680X_INS_EDIVS, mmrr, {
+				M680X_REG_D, M680X_REG_Y, M680X_REG_X, EOL
+			}
+		},
+		{ M680X_INS_EMACS, mrrr, { M680X_REG_X, M680X_REG_Y, EOL } },
+		{ M680X_INS_EMAXM, rrrr, { M680X_REG_D, EOL } },
+		{ M680X_INS_EMINM, rrrr, { M680X_REG_D, EOL } },
+		{ M680X_INS_EMUL, mmrr, { M680X_REG_D, M680X_REG_Y, EOL } },
+		{ M680X_INS_EMULS, mmrr, { M680X_REG_D, M680X_REG_Y, EOL } },
+		{ M680X_INS_ETBL, wmmm, { M680X_REG_A, M680X_REG_B, EOL } },
+		{ M680X_INS_FDIV, mmmm, { M680X_REG_D, M680X_REG_X, EOL } },
+		{ M680X_INS_IDIV, mmmm, { M680X_REG_D, M680X_REG_X, EOL } },
+		{ M680X_INS_IDIVS, mmmm, { M680X_REG_D, M680X_REG_X, EOL } },
+		{ M680X_INS_JSR, mmmm, { M680X_REG_S, EOL } },
+		{ M680X_INS_LBSR, mmmm, { M680X_REG_S, EOL } },
+		{ M680X_INS_MAXM, rrrr, { M680X_REG_A, EOL } },
+		{ M680X_INS_MINM, rrrr, { M680X_REG_A, EOL } },
+		{
+			M680X_INS_MEM, mmrr, {
+				M680X_REG_X, M680X_REG_Y, M680X_REG_A, EOL
+			}
+		},
+		{ M680X_INS_MUL, mmmm, { M680X_REG_A, M680X_REG_B, EOL } },
+		{ M680X_INS_MULD, mwrr, { M680X_REG_D, M680X_REG_W, EOL } },
+		{ M680X_INS_PSHA, rmmm, { M680X_REG_A, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHB, rmmm, { M680X_REG_B, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHC, rmmm, { M680X_REG_CC, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHD, rmmm, { M680X_REG_D, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHH, rmmm, { M680X_REG_H, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHX, rmmm, { M680X_REG_X, M680X_REG_S, EOL } },
+		{ M680X_INS_PSHY, rmmm, { M680X_REG_Y, M680X_REG_S, EOL } },
+		{ M680X_INS_PULA, wmmm, { M680X_REG_A, M680X_REG_S, EOL } },
+		{ M680X_INS_PULB, wmmm, { M680X_REG_B, M680X_REG_S, EOL } },
+		{ M680X_INS_PULC, wmmm, { M680X_REG_CC, M680X_REG_S, EOL } },
+		{ M680X_INS_PULD, wmmm, { M680X_REG_D, M680X_REG_S, EOL } },
+		{ M680X_INS_PULH, wmmm, { M680X_REG_H, M680X_REG_S, EOL } },
+		{ M680X_INS_PULX, wmmm, { M680X_REG_X, M680X_REG_S, EOL } },
+		{ M680X_INS_PULY, wmmm, { M680X_REG_Y, M680X_REG_S, EOL } },
+		{
+			M680X_INS_REV, mmrr, {
+				M680X_REG_A, M680X_REG_X, M680X_REG_Y, EOL
+			}
+		},
+		{
+			M680X_INS_REVW, mmmm, {
+				M680X_REG_A, M680X_REG_X, M680X_REG_Y, EOL
+			}
+		},
+		{ M680X_INS_RTC, mwww, { M680X_REG_S, M680X_REG_PC, EOL } },
+		{
+			M680X_INS_RTI, mwww, {
+				M680X_REG_S, M680X_REG_CC, M680X_REG_B,
+				M680X_REG_A, M680X_REG_DP, M680X_REG_X,
+				M680X_REG_Y, M680X_REG_U, M680X_REG_PC,
+				EOL
+			},
+		},
+		{ M680X_INS_RTS, mwww, { M680X_REG_S, M680X_REG_PC, EOL } },
+		{ M680X_INS_SEX, wrrr, { M680X_REG_A, M680X_REG_B, EOL } },
+		{ M680X_INS_SEXW, rwww, { M680X_REG_W, M680X_REG_D, EOL } },
+		{
+			M680X_INS_SWI, mmrr, {
+				M680X_REG_S, M680X_REG_PC, M680X_REG_U,
+				M680X_REG_Y, M680X_REG_X, M680X_REG_DP,
+				M680X_REG_A, M680X_REG_B, M680X_REG_CC,
+				EOL
+			}
+		},
+		{
+			M680X_INS_SWI2, mmrr, {
+				M680X_REG_S, M680X_REG_PC, M680X_REG_U,
+				M680X_REG_Y, M680X_REG_X, M680X_REG_DP,
+				M680X_REG_A, M680X_REG_B, M680X_REG_CC,
+				EOL
+			},
+		},
+		{
+			M680X_INS_SWI3, mmrr, {
+				M680X_REG_S, M680X_REG_PC, M680X_REG_U,
+				M680X_REG_Y, M680X_REG_X, M680X_REG_DP,
+				M680X_REG_A, M680X_REG_B, M680X_REG_CC,
+				EOL
+			},
+		},
+		{ M680X_INS_TBL, wrrr, { M680X_REG_A, M680X_REG_B, EOL } },
+		{
+			M680X_INS_WAI, mrrr, {
+				M680X_REG_S, M680X_REG_PC, M680X_REG_X,
+				M680X_REG_A, M680X_REG_B, M680X_REG_CC,
+				EOL
+			}
+		},
+		{
+			M680X_INS_WAV, rmmm, {
+				M680X_REG_A, M680X_REG_B, M680X_REG_X,
+				M680X_REG_Y, EOL
+			}
+		},
+		{
+			M680X_INS_WAVR, rmmm, {
+				M680X_REG_A, M680X_REG_B, M680X_REG_X,
+				M680X_REG_Y, EOL
+			}
+		},
+	};
+
+	int i, j;
+
+	if (MI->flat_insn->detail == NULL)
+		return;
+
+	for (i = 0; i < ARR_SIZE(changed_regs); ++i) {
+		if (info->insn == changed_regs[i].insn) {
+			e_access_mode access_mode = changed_regs[i].access_mode;
+
+			for (j = 0; changed_regs[i].regs[j] != EOL; ++j) {
+				e_access access;
+
+				m680x_reg reg = changed_regs[i].regs[j];
+
+				if (!info->cpu->reg_byte_size[reg]) {
+					if (info->insn != M680X_INS_MUL)
+						continue;
+
+					// Hack for M68HC05: MUL uses reg. A,X
+					reg = M680X_REG_X;
+				}
+
+				access = get_access(j, access_mode);
+				add_reg_to_rw_list(MI, reg, access);
+			}
+		}
+	}
+
+#undef EOL
+}
+
+typedef struct insn_desc {
+	uint32_t opcode;
+	m680x_insn insn;
+	insn_hdlr_id hid[2];
+	uint16_t insn_size;
+} insn_desc;
+
+// If successfull return the additional byte size needed for M6809
+// indexed addressing mode (including the indexed addressing post_byte).
+// On error return -1.
+static int get_indexed09_post_byte_size(const m680x_info *info,
+					uint16_t address)
+{
+	uint8_t ir = 0;
+	uint8_t post_byte;
+
+	// Read the indexed addressing post byte.
+	if (!read_byte(info, &post_byte, address))
+		return -1;
+
+	// Depending on the indexed addressing mode more bytes have to be read.
+	switch (post_byte & 0x9F) {
+	case 0x87:
+	case 0x8A:
+	case 0x8E:
+	case 0x8F:
+	case 0x90:
+	case 0x92:
+	case 0x97:
+	case 0x9A:
+	case 0x9E:
+		return -1; // illegal indexed post bytes
+
+	case 0x88: // n8,R
+	case 0x8C: // n8,PCR
+	case 0x98: // [n8,R]
+	case 0x9C: // [n8,PCR]
+		if (!read_byte(info, &ir, address + 1))
+			return -1;
+		return 2;
+
+	case 0x89: // n16,R
+	case 0x8D: // n16,PCR
+	case 0x99: // [n16,R]
+	case 0x9D: // [n16,PCR]
+		if (!read_byte(info, &ir, address + 2))
+			return -1;
+		return 3;
+
+	case 0x9F: // [n]
+		if ((post_byte & 0x60) != 0 ||
+			!read_byte(info, &ir, address + 2))
+			return -1;
+		return  3;
+	}
+
+	// Any other indexed post byte is valid and
+	// no additional bytes have to be read.
+	return 1;
+}
+
+// If successfull return the additional byte size needed for CPU12
+// indexed addressing mode (including the indexed addressing post_byte).
+// On error return -1.
+static int get_indexed12_post_byte_size(const m680x_info *info,
+					uint16_t address, bool is_subset)
+{
+	uint8_t ir;
+	uint8_t post_byte;
+
+	// Read the indexed addressing post byte.
+	if (!read_byte(info, &post_byte, address))
+		return -1;
+
+	// Depending on the indexed addressing mode more bytes have to be read.
+	if (!(post_byte & 0x20)) // n5,R
+		return 1;
+
+	switch (post_byte & 0xe7) {
+	case 0xe0:
+	case 0xe1: // n9,R
+		if (is_subset)
+			return -1;
+
+		if (!read_byte(info, &ir, address))
+			return -1;
+		return 2;
+
+	case 0xe2: // n16,R
+	case 0xe3: // [n16,R]
+		if (is_subset)
+			return -1;
+
+		if (!read_byte(info, &ir, address + 1))
+			return -1;
+		return 3;
+
+	case 0xe4: // A,R
+	case 0xe5: // B,R
+	case 0xe6: // D,R
+	case 0xe7: // [D,R]
+	default: // n,-r n,+r n,r- n,r+
+		break;
+	}
+
+	return 1;
+}
+
+// Check for M6809/HD6309 TFR/EXG instruction for valid register
+static bool is_tfr09_reg_valid(const m680x_info *info, uint8_t reg_nibble)
+{
+	if (info->cpu->tfr_reg_valid != NULL)
+		return info->cpu->tfr_reg_valid[reg_nibble];
+
+	return true; // e.g. for the M6309 all registers are valid
+}
+
+// Check for CPU12 TFR/EXG instruction for valid register
+static bool is_exg_tfr12_post_byte_valid(const m680x_info *info,
+	uint8_t post_byte)
+{
+	return !(post_byte & 0x08);
+}
+
+static bool is_tfm_reg_valid(const m680x_info *info, uint8_t reg_nibble)
+{
+	// HD6809 TFM instruction: Only register X,Y,U,S,D is allowed
+	return reg_nibble <= 4;
+}
+
+// If successfull return the additional byte size needed for CPU12
+// loop instructions DBEQ/DBNE/IBEQ/IBNE/TBEQ/TBNE (including the post byte).
+// On error return -1.
+static int get_loop_post_byte_size(const m680x_info *info, uint16_t address)
+{
+	uint8_t post_byte;
+	uint8_t rr;
+
+	if (!read_byte(info, &post_byte, address))
+		return -1;
+
+	// According to documentation bit 3 is don't care and not checked here.
+	if ((post_byte >= 0xc0) ||
+		((post_byte & 0x07) == 2) || ((post_byte & 0x07) == 3))
+		return -1;
+
+	if (!read_byte(info, &rr, address + 1))
+		return -1;
+
+	return 2;
+}
+
+// If successfull return the additional byte size needed for HD6309
+// bit move instructions BAND/BEOR/BIAND/BIEOR/BIOR/BOR/LDBT/STBT
+// (including the post byte).
+// On error return -1.
+static int get_bitmv_post_byte_size(const m680x_info *info, uint16_t address)
+{
+	uint8_t post_byte;
+	uint8_t rr;
+
+	if (!read_byte(info, &post_byte, address))
+		return -1;
+
+	if ((post_byte & 0xc0) == 0xc0)
+		return -1; // Invalid register specified
+	else {
+		if (!read_byte(info, &rr, address + 1))
+			return -1;
+	}
+
+	return 2;
+}
+
+static bool is_sufficient_code_size(const m680x_info *info, uint16_t address,
+	insn_desc *insn_description)
+{
+	int i;
+	bool retval = true;
+	uint16_t size = 0;
+	int sz;
+
+	for (i = 0; i < 2; i++) {
+		uint8_t ir = 0;
+		bool is_subset = false;
+
+		switch (insn_description->hid[i]) {
+
+		case imm32_hid:
+			if ((retval = read_byte(info, &ir, address + size + 3)))
+				size += 4;
+			break;
+
+		case ext_hid:
+		case imm16_hid:
+		case rel16_hid:
+		case imm8rel_hid:
+		case opidxdr_hid:
+		case idxX16_hid:
+		case idxS16_hid:
+			if ((retval = read_byte(info, &ir, address + size + 1)))
+				size += 2;
+			break;
+
+		case rel8_hid:
+		case dir_hid:
+		case rbits_hid:
+		case imm8_hid:
+		case idxX_hid:
+		case idxXp_hid:
+		case idxY_hid:
+		case idxS_hid:
+		case index_hid:
+			if ((retval = read_byte(info, &ir, address + size)))
+				size++;
+			break;
+
+		case illgl_hid:
+		case inh_hid:
+		case idxX0_hid:
+		case idxX0p_hid:
+		case opidx_hid:
+			retval = true;
+			break;
+
+		case idx09_hid:
+			sz = get_indexed09_post_byte_size(info, address + size);
+			if (sz >= 0)
+				size += sz;
+			else
+				retval = false;
+			break;
+
+		case idx12s_hid:
+			is_subset = true;
+
+		// intentionally fall through
+
+		case idx12_hid:
+			sz = get_indexed12_post_byte_size(info,
+					address + size, is_subset);
+			if (sz >= 0)
+				size += sz;
+			else
+				retval = false;
+			break;
+
+		case exti12x_hid:
+		case imm16i12x_hid:
+			sz = get_indexed12_post_byte_size(info,
+					address + size, false);
+			if (sz >= 0) {
+				size += sz;
+				if ((retval = read_byte(info, &ir,
+						address + size + 1)))
+					size += 2;
+			} else
+				retval = false;
+			break;
+
+		case imm8i12x_hid:
+			sz = get_indexed12_post_byte_size(info,
+					address + size, false);
+			if (sz >= 0) {
+				size += sz;
+				if ((retval = read_byte(info, &ir,
+						address + size)))
+					size++;
+			} else
+				retval = false;
+			break;
+
+		case tfm_hid:
+			if ((retval = read_byte(info, &ir, address + size))) {
+				size++;
+				retval = is_tfm_reg_valid(info, (ir >> 4) & 0x0F) &&
+					is_tfm_reg_valid(info, ir & 0x0F);
+			}
+			break;
+
+		case rr09_hid:
+			if ((retval = read_byte(info, &ir, address + size))) {
+				size++;
+				retval = is_tfr09_reg_valid(info, (ir >> 4) & 0x0F) &&
+					is_tfr09_reg_valid(info, ir & 0x0F);
+			}
+			break;
+
+		case rr12_hid:
+			if ((retval = read_byte(info, &ir, address + size))) {
+				size++;
+				retval = is_exg_tfr12_post_byte_valid(info, ir);
+			}
+			break;
+
+		case bitmv_hid:
+			sz = get_bitmv_post_byte_size(info, address + size);
+			if (sz >= 0)
+				size += sz;
+			else
+				retval = false;
+			break;
+
+		case loop_hid:
+			sz = get_loop_post_byte_size(info, address + size);
+			if (sz >= 0)
+				size += sz;
+			else
+				retval = false;
+			break;
+
+		default:
+			CS_ASSERT(0 && "Unexpected instruction handler id");
+			retval = false;
+			break;
+		}
+
+		if (!retval)
+			return false;
+	}
+
+	insn_description->insn_size += size;
+
+	return retval;
+}
+
+// Check for a valid M680X instruction AND for enough bytes in the code buffer
+// Return an instruction description in insn_desc.
+static bool decode_insn(const m680x_info *info, uint16_t address,
+	insn_desc *insn_description)
+{
+	const inst_pageX *inst_table = NULL;
+	const cpu_tables *cpu = info->cpu;
+	size_t table_size = 0;
+	uint16_t base_address = address;
+	uint8_t ir; // instruction register
+	int i;
+	int index;
+
+	if (!read_byte(info, &ir, address++))
+		return false;
+
+	insn_description->insn = M680X_INS_ILLGL;
+	insn_description->opcode = ir;
+
+	// Check if a page prefix byte is present
+	for (i = 0; i < ARR_SIZE(cpu->pageX_table_size); ++i) {
+		if (cpu->pageX_table_size[i] == 0 ||
+			(cpu->inst_pageX_table[i] == NULL))
+			break;
+
+		if ((cpu->pageX_prefix[i] == ir)) {
+			// Get pageX instruction and handler id.
+			// Abort for illegal instr.
+			inst_table = cpu->inst_pageX_table[i];
+			table_size = cpu->pageX_table_size[i];
+
+			if (!read_byte(info, &ir, address++))
+				return false;
+
+			insn_description->opcode =
+				(insn_description->opcode << 8) | ir;
+
+			if ((index = binary_search(inst_table, table_size,
+				ir)) < 0)
+				return false;
+
+			insn_description->hid[0] =
+				inst_table[index].handler_id1;
+			insn_description->hid[1] =
+				inst_table[index].handler_id2;
+			insn_description->insn = inst_table[index].insn;
+			break;
+		}
+	}
+
+	if (insn_description->insn == M680X_INS_ILLGL) {
+		// Get page1 insn description
+		insn_description->insn = cpu->inst_page1_table[ir].insn;
+		insn_description->hid[0] =
+			cpu->inst_page1_table[ir].handler_id1;
+		insn_description->hid[1] =
+			cpu->inst_page1_table[ir].handler_id2;
+	}
+
+	if (insn_description->insn == M680X_INS_ILLGL) {
+		// Check if opcode byte is present in an overlay table
+		for (i = 0; i < ARR_SIZE(cpu->overlay_table_size); ++i) {
+			if (cpu->overlay_table_size[i] == 0 ||
+				(cpu->inst_overlay_table[i] == NULL))
+				break;
+
+			inst_table = cpu->inst_overlay_table[i];
+			table_size = cpu->overlay_table_size[i];
+
+			if ((index = binary_search(inst_table, table_size,
+							ir)) >= 0) {
+				insn_description->hid[0] =
+					inst_table[index].handler_id1;
+				insn_description->hid[1] =
+					inst_table[index].handler_id2;
+				insn_description->insn = inst_table[index].insn;
+				break;
+			}
+		}
+	}
+
+	insn_description->insn_size = address - base_address;
+
+	return (insn_description->insn != M680X_INS_ILLGL) &&
+		(insn_description->insn != M680X_INS_INVLD) &&
+		is_sufficient_code_size(info, address, insn_description);
+}
+
+static void illegal_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x_op *op0 = &info->m680x.operands[info->m680x.op_count++];
+	uint8_t temp8 = 0;
+
+	info->insn = M680X_INS_ILLGL;
+	read_byte(info, &temp8, (*address)++);
+	op0->imm = (int32_t)temp8 & 0xff;
+	op0->type = M680X_OP_IMMEDIATE;
+	op0->size = 1;
+}
+
+static void inherent_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	// There is nothing to do here :-)
+}
+
+static void add_reg_operand(m680x_info *info, m680x_reg reg)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_REGISTER;
+	op->reg = reg;
+	op->size = info->cpu->reg_byte_size[reg];
+}
+
+static void set_operand_size(m680x_info *info, cs_m680x_op *op,
+	uint8_t default_size)
+{
+	cs_m680x *m680x = &info->m680x;
+
+	if (info->insn == M680X_INS_JMP || info->insn == M680X_INS_JSR)
+		op->size = 0;
+	else if (info->insn == M680X_INS_DIVD ||
+		((info->insn == M680X_INS_AIS || info->insn == M680X_INS_AIX) &&
+			op->type != M680X_OP_REGISTER))
+		op->size = 1;
+	else if (info->insn == M680X_INS_DIVQ ||
+		info->insn == M680X_INS_MOVW)
+		op->size = 2;
+	else if (info->insn == M680X_INS_EMACS)
+		op->size = 4;
+	else if ((m680x->op_count > 0) &&
+		(m680x->operands[0].type == M680X_OP_REGISTER))
+		op->size = m680x->operands[0].size;
+	else
+		op->size = default_size;
+}
+
+static const m680x_reg reg_s_reg_ids[] = {
+	M680X_REG_CC, M680X_REG_A, M680X_REG_B, M680X_REG_DP,
+	M680X_REG_X,  M680X_REG_Y, M680X_REG_U, M680X_REG_PC,
+};
+
+static const m680x_reg reg_u_reg_ids[] = {
+	M680X_REG_CC, M680X_REG_A, M680X_REG_B, M680X_REG_DP,
+	M680X_REG_X,  M680X_REG_Y, M680X_REG_S, M680X_REG_PC,
+};
+
+static void reg_bits_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x_op *op0 = &info->m680x.operands[0];
+	uint8_t reg_bits = 0;
+	uint16_t bit_index;
+	const m680x_reg *reg_to_reg_ids = NULL;
+
+	read_byte(info, &reg_bits, (*address)++);
+
+	switch (op0->reg) {
+	case M680X_REG_U:
+		reg_to_reg_ids = &reg_u_reg_ids[0];
+		break;
+
+	case M680X_REG_S:
+		reg_to_reg_ids = &reg_s_reg_ids[0];
+		break;
+
+	default:
+		CS_ASSERT(0 && "Unexpected operand0 register");
+		break;
+	}
+
+	if ((info->insn == M680X_INS_PULU ||
+			(info->insn == M680X_INS_PULS)) &&
+		((reg_bits & 0x80) != 0))
+		// PULS xxx,PC or PULU xxx,PC which is like return from
+		// subroutine (RTS)
+		add_insn_group(MI->flat_insn->detail, M680X_GRP_RET);
+
+	for (bit_index = 0; bit_index < 8; ++bit_index) {
+		if (reg_bits & (1 << bit_index))
+			add_reg_operand(info, reg_to_reg_ids[bit_index]);
+	}
+}
+
+static const m680x_reg g_tfr_exg_reg_ids[] = {
+	/* 16-bit registers */
+	M680X_REG_D, M680X_REG_X,  M680X_REG_Y,  M680X_REG_U,
+	M680X_REG_S, M680X_REG_PC, M680X_REG_W,  M680X_REG_V,
+	/* 8-bit registers */
+	M680X_REG_A, M680X_REG_B,  M680X_REG_CC, M680X_REG_DP,
+	M680X_REG_0, M680X_REG_0,  M680X_REG_E,  M680X_REG_F,
+};
+
+static void reg_reg09_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint8_t regs = 0;
+
+	read_byte(info, &regs, (*address)++);
+
+	add_reg_operand(info, g_tfr_exg_reg_ids[regs >> 4]);
+	add_reg_operand(info, g_tfr_exg_reg_ids[regs & 0x0f]);
+
+	if ((regs & 0x0f) == 0x05) {
+		// EXG xxx,PC or TFR xxx,PC which is like a JMP
+		add_insn_group(MI->flat_insn->detail, M680X_GRP_JUMP);
+	}
+}
+
+
+static void reg_reg12_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	static const m680x_reg g_tfr_exg12_reg0_ids[] = {
+		M680X_REG_A, M680X_REG_B,  M680X_REG_CC,  M680X_REG_TMP3,
+		M680X_REG_D, M680X_REG_X, M680X_REG_Y,  M680X_REG_S,
+	};
+	static const m680x_reg g_tfr_exg12_reg1_ids[] = {
+		M680X_REG_A, M680X_REG_B,  M680X_REG_CC,  M680X_REG_TMP2,
+		M680X_REG_D, M680X_REG_X, M680X_REG_Y,  M680X_REG_S,
+	};
+	uint8_t regs = 0;
+
+	read_byte(info, &regs, (*address)++);
+
+	// The opcode of this instruction depends on
+	// the msb of its post byte.
+	if (regs & 0x80)
+		info->insn = M680X_INS_EXG;
+	else
+		info->insn = M680X_INS_TFR;
+
+	add_reg_operand(info, g_tfr_exg12_reg0_ids[(regs >> 4) & 0x07]);
+	add_reg_operand(info, g_tfr_exg12_reg1_ids[regs & 0x07]);
+}
+
+static void add_rel_operand(m680x_info *info, int16_t offset, uint16_t address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_RELATIVE;
+	op->size = 0;
+	op->rel.offset = offset;
+	op->rel.address = address;
+}
+
+static void relative8_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	int16_t offset = 0;
+
+	read_byte_sign_extended(info, &offset, (*address)++);
+	add_rel_operand(info, offset, *address + offset);
+	add_insn_group(MI->flat_insn->detail, M680X_GRP_BRAREL);
+
+	if ((info->insn != M680X_INS_BRA) &&
+		(info->insn != M680X_INS_BSR) &&
+		(info->insn != M680X_INS_BRN))
+		add_reg_to_rw_list(MI, M680X_REG_CC, READ);
+}
+
+static void relative16_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint16_t offset = 0;
+
+	read_word(info, &offset, *address);
+	*address += 2;
+	add_rel_operand(info, (int16_t)offset, *address + offset);
+	add_insn_group(MI->flat_insn->detail, M680X_GRP_BRAREL);
+
+	if ((info->insn != M680X_INS_LBRA) &&
+		(info->insn != M680X_INS_LBSR) &&
+		(info->insn != M680X_INS_LBRN))
+		add_reg_to_rw_list(MI, M680X_REG_CC, READ);
+}
+
+static const m680x_reg g_rr5_to_reg_ids[] = {
+	M680X_REG_X, M680X_REG_Y, M680X_REG_U, M680X_REG_S,
+};
+
+static void add_indexed_operand(m680x_info *info, m680x_reg base_reg,
+	bool post_inc_dec, uint8_t inc_dec, uint8_t offset_bits,
+	uint16_t offset, bool no_comma)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_INDEXED;
+	set_operand_size(info, op, 1);
+	op->idx.base_reg = base_reg;
+	op->idx.offset_reg = M680X_REG_INVALID;
+	op->idx.inc_dec = inc_dec;
+
+	if (inc_dec && post_inc_dec)
+		op->idx.flags |= M680X_IDX_POST_INC_DEC;
+
+	if (offset_bits != M680X_OFFSET_NONE) {
+		op->idx.offset = offset;
+		op->idx.offset_addr = 0;
+	}
+
+	op->idx.offset_bits = offset_bits;
+	op->idx.flags |= (no_comma ? M680X_IDX_NO_COMMA : 0);
+}
+
+// M6800/1/2/3 indexed mode handler
+static void indexedX_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint8_t offset = 0;
+
+	read_byte(info, &offset, (*address)++);
+
+	add_indexed_operand(info, M680X_REG_X, false, 0, M680X_OFFSET_BITS_8,
+		(uint16_t)offset, false);
+}
+
+static void indexedY_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint8_t offset = 0;
+
+	read_byte(info, &offset, (*address)++);
+
+	add_indexed_operand(info, M680X_REG_Y, false, 0, M680X_OFFSET_BITS_8,
+		(uint16_t)offset, false);
+}
+
+// M6809/M6309 indexed mode handler
+static void indexed09_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+	uint8_t post_byte = 0;
+	uint16_t offset = 0;
+	int16_t soffset = 0;
+
+	read_byte(info, &post_byte, (*address)++);
+
+	op->type = M680X_OP_INDEXED;
+	set_operand_size(info, op, 1);
+	op->idx.base_reg = g_rr5_to_reg_ids[(post_byte >> 5) & 0x03];
+	op->idx.offset_reg = M680X_REG_INVALID;
+
+	if (!(post_byte & 0x80)) {
+		// n5,R
+		if ((post_byte & 0x10) == 0x10)
+			op->idx.offset = post_byte | 0xfff0;
+		else
+			op->idx.offset = post_byte & 0x0f;
+
+		op->idx.offset_addr = op->idx.offset + *address;
+		op->idx.offset_bits = M680X_OFFSET_BITS_5;
+	}
+	else {
+		if ((post_byte & 0x10) == 0x10)
+			op->idx.flags |= M680X_IDX_INDIRECT;
+
+		// indexed addressing
+		switch (post_byte & 0x1f) {
+		case 0x00: // ,R+
+			op->idx.inc_dec = 1;
+			op->idx.flags |= M680X_IDX_POST_INC_DEC;
+			break;
+
+		case 0x11: // [,R++]
+		case 0x01: // ,R++
+			op->idx.inc_dec = 2;
+			op->idx.flags |= M680X_IDX_POST_INC_DEC;
+			break;
+
+		case 0x02: // ,-R
+			op->idx.inc_dec = -1;
+			break;
+
+		case 0x13: // [,--R]
+		case 0x03: // ,--R
+			op->idx.inc_dec = -2;
+			break;
+
+		case 0x14: // [,R]
+		case 0x04: // ,R
+			break;
+
+		case 0x15: // [B,R]
+		case 0x05: // B,R
+			op->idx.offset_reg = M680X_REG_B;
+			break;
+
+		case 0x16: // [A,R]
+		case 0x06: // A,R
+			op->idx.offset_reg = M680X_REG_A;
+			break;
+
+		case 0x1c: // [n8,PCR]
+		case 0x0c: // n8,PCR
+			op->idx.base_reg = M680X_REG_PC;
+			read_byte_sign_extended(info, &soffset, (*address)++);
+			op->idx.offset_addr = offset + *address;
+			op->idx.offset = soffset;
+			op->idx.offset_bits = M680X_OFFSET_BITS_8;
+			break;
+
+		case 0x18: // [n8,R]
+		case 0x08: // n8,R
+			read_byte_sign_extended(info, &soffset, (*address)++);
+			op->idx.offset = soffset;
+			op->idx.offset_bits = M680X_OFFSET_BITS_8;
+			break;
+
+		case 0x1d: // [n16,PCR]
+		case 0x0d: // n16,PCR
+			op->idx.base_reg = M680X_REG_PC;
+			read_word(info, &offset, *address);
+			*address += 2;
+			op->idx.offset_addr = offset + *address;
+			op->idx.offset = (int16_t)offset;
+			op->idx.offset_bits = M680X_OFFSET_BITS_16;
+			break;
+
+		case 0x19: // [n16,R]
+		case 0x09: // n16,R
+			read_word(info, &offset, *address);
+			*address += 2;
+			op->idx.offset = (int16_t)offset;
+			op->idx.offset_bits = M680X_OFFSET_BITS_16;
+			break;
+
+		case 0x1b: // [D,R]
+		case 0x0b: // D,R
+			op->idx.offset_reg = M680X_REG_D;
+			break;
+
+		case 0x1f: // [n16]
+			op->type = M680X_OP_EXTENDED;
+			op->ext.indirect = true;
+			read_word(info, &op->ext.address, *address);
+			*address += 2;
+			break;
+
+		default:
+			op->idx.base_reg = M680X_REG_INVALID;
+			break;
+		}
+	}
+
+	if (((info->insn == M680X_INS_LEAU) ||
+			(info->insn == M680X_INS_LEAS) ||
+			(info->insn == M680X_INS_LEAX) ||
+			(info->insn == M680X_INS_LEAY)) &&
+		(m680x->operands[0].reg == M680X_REG_X ||
+			(m680x->operands[0].reg == M680X_REG_Y)))
+		// Only LEAX and LEAY modify CC register
+		add_reg_to_rw_list(MI, M680X_REG_CC, MODIFY);
+}
+
+
+static const m680x_reg g_idx12_to_reg_ids[4] = {
+	M680X_REG_X, M680X_REG_Y, M680X_REG_S, M680X_REG_PC,
+};
+
+static const m680x_reg g_or12_to_reg_ids[3] = {
+	M680X_REG_A, M680X_REG_B, M680X_REG_D
+};
+
+// CPU12 indexed mode handler
+static void indexed12_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+	uint8_t post_byte = 0;
+	uint8_t offset8 = 0;
+
+	read_byte(info, &post_byte, (*address)++);
+
+	op->type = M680X_OP_INDEXED;
+	set_operand_size(info, op, 1);
+	op->idx.offset_reg = M680X_REG_INVALID;
+
+	if (!(post_byte & 0x20)) {
+		// n5,R      n5 is a 5-bit signed offset
+		op->idx.base_reg = g_idx12_to_reg_ids[(post_byte >> 6) & 0x03];
+
+		if ((post_byte & 0x10) == 0x10)
+			op->idx.offset = post_byte | 0xfff0;
+		else
+			op->idx.offset = post_byte & 0x0f;
+
+		op->idx.offset_addr = op->idx.offset + *address;
+		op->idx.offset_bits = M680X_OFFSET_BITS_5;
+	}
+	else {
+		if ((post_byte & 0xe0) == 0xe0)
+			op->idx.base_reg =
+				g_idx12_to_reg_ids[(post_byte >> 3) & 0x03];
+
+		switch (post_byte & 0xe7) {
+		case 0xe0:
+		case 0xe1: // n9,R
+			read_byte(info, &offset8, (*address)++);
+			op->idx.offset = offset8;
+
+			if (post_byte & 0x01) // sign extension
+				op->idx.offset |= 0xff00;
+
+			op->idx.offset_bits = M680X_OFFSET_BITS_9;
+
+			if (op->idx.base_reg == M680X_REG_PC)
+				op->idx.offset_addr = op->idx.offset + *address;
+
+			break;
+
+		case 0xe3: // [n16,R]
+			op->idx.flags |= M680X_IDX_INDIRECT;
+
+		// intentionally fall through
+		case 0xe2: // n16,R
+			read_word(info, (uint16_t *)&op->idx.offset, *address);
+			(*address) += 2;
+			op->idx.offset_bits = M680X_OFFSET_BITS_16;
+
+			if (op->idx.base_reg == M680X_REG_PC)
+				op->idx.offset_addr = op->idx.offset + *address;
+
+			break;
+
+		case 0xe4: // A,R
+		case 0xe5: // B,R
+		case 0xe6: // D,R
+			op->idx.offset_reg =
+				g_or12_to_reg_ids[post_byte & 0x03];
+			break;
+
+		case 0xe7: // [D,R]
+			op->idx.offset_reg = M680X_REG_D;
+			op->idx.flags |= M680X_IDX_INDIRECT;
+			break;
+
+		default: // n,-r n,+r n,r- n,r+
+			// PC is not allowed in this mode
+			op->idx.base_reg =
+				g_idx12_to_reg_ids[(post_byte >> 6) & 0x03];
+			op->idx.inc_dec = post_byte & 0x0f;
+
+			if (op->idx.inc_dec & 0x08) // evtl. sign extend value
+				op->idx.inc_dec |= 0xf0;
+
+			if (op->idx.inc_dec >= 0)
+				op->idx.inc_dec++;
+
+			if (post_byte & 0x10)
+				op->idx.flags |= M680X_IDX_POST_INC_DEC;
+
+			break;
+
+		}
+	}
+}
+
+static void index_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_CONSTANT;
+	read_byte(info, &op->const_val, (*address)++);
+};
+
+static void direct_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_DIRECT;
+	set_operand_size(info, op, 1);
+	read_byte(info, &op->direct_addr, (*address)++);
+};
+
+static void extended_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_EXTENDED;
+	set_operand_size(info, op, 1);
+	read_word(info, &op->ext.address, *address);
+	*address += 2;
+}
+
+static void immediate_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+	uint16_t word = 0;
+	int16_t sword = 0;
+
+	op->type = M680X_OP_IMMEDIATE;
+	set_operand_size(info, op, 1);
+
+	switch (op->size) {
+	case 1:
+		read_byte_sign_extended(info, &sword, *address);
+		op->imm = sword;
+		break;
+
+	case 2:
+		read_word(info, &word, *address);
+		op->imm = (int16_t)word;
+		break;
+
+	case 4:
+		read_sdword(info, &op->imm, *address);
+		break;
+
+	default:
+		op->imm = 0;
+		CS_ASSERT(0 && "Unexpected immediate byte size");
+	}
+
+	*address += op->size;
+}
+
+// handler for bit move instructions, e.g: BAND A,5,1,$40  Used by HD6309
+static void bit_move_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	static const m680x_reg m680x_reg[] = {
+		M680X_REG_CC, M680X_REG_A, M680X_REG_B, M680X_REG_INVALID,
+	};
+
+	uint8_t post_byte = 0;
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op;
+
+	read_byte(info, &post_byte, *address);
+	(*address)++;
+
+	// operand[0] = register
+	add_reg_operand(info, m680x_reg[post_byte >> 6]);
+
+	// operand[1] = bit index in source operand
+	op = &m680x->operands[m680x->op_count++];
+	op->type = M680X_OP_CONSTANT;
+	op->const_val = (post_byte >> 3) & 0x07;
+
+	// operand[2] = bit index in destination operand
+	op = &m680x->operands[m680x->op_count++];
+	op->type = M680X_OP_CONSTANT;
+	op->const_val = post_byte & 0x07;
+
+	direct_hdlr(MI, info, address);
+}
+
+// handler for TFM instruction, e.g: TFM X+,Y+  Used by HD6309
+static void tfm_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	static const uint8_t inc_dec_r0[] = {
+		1, -1, 1, 0,
+	};
+	static const uint8_t inc_dec_r1[] = {
+		1, -1, 0, 1,
+	};
+	uint8_t regs = 0;
+	uint8_t index = (MI->Opcode & 0xff) - 0x38;
+
+	read_byte(info, &regs, *address);
+
+	add_indexed_operand(info, g_tfr_exg_reg_ids[regs >> 4], true,
+		inc_dec_r0[index], M680X_OFFSET_NONE, 0, true);
+	add_indexed_operand(info, g_tfr_exg_reg_ids[regs & 0x0f], true,
+		inc_dec_r1[index], M680X_OFFSET_NONE, 0, true);
+
+	add_reg_to_rw_list(MI, M680X_REG_W, READ | WRITE);
+}
+
+static void opidx_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	// bit index is coded in Opcode
+	op->type = M680X_OP_CONSTANT;
+	op->const_val = (MI->Opcode & 0x0e) >> 1;
+}
+
+// handler for bit test and branch instruction. Used by M6805.
+// The bit index is part of the opcode.
+// Example: BRSET 3,<$40,LOOP
+static void opidx_dir_rel_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	// bit index is coded in Opcode
+	op->type = M680X_OP_CONSTANT;
+	op->const_val = (MI->Opcode & 0x0e) >> 1;
+	direct_hdlr(MI, info, address);
+	relative8_hdlr(MI, info, address);
+
+	add_reg_to_rw_list(MI, M680X_REG_CC, MODIFY);
+}
+
+static void indexedX0_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	add_indexed_operand(info, M680X_REG_X, false, 0, M680X_OFFSET_NONE,
+		0, false);
+}
+
+static void indexedX16_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint16_t offset = 0;
+
+	read_word(info, &offset, *address);
+	*address += 2;
+	add_indexed_operand(info, M680X_REG_X, false, 0, M680X_OFFSET_BITS_16,
+		offset, false);
+}
+
+static void imm_rel_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	immediate_hdlr(MI, info, address);
+	relative8_hdlr(MI, info, address);
+}
+
+static void indexedS_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint8_t offset = 0;
+
+	read_byte(info, &offset, (*address)++);
+
+	add_indexed_operand(info, M680X_REG_S, false, 0, M680X_OFFSET_BITS_8,
+		(uint16_t)offset, false);
+}
+
+static void indexedS16_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint16_t offset = 0;
+
+	read_word(info, &offset, *address);
+	address += 2;
+
+	add_indexed_operand(info, M680X_REG_S, false, 0, M680X_OFFSET_BITS_16,
+		offset, false);
+}
+
+static void indexedX0p_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	add_indexed_operand(info, M680X_REG_X, true, 1, M680X_OFFSET_NONE,
+		0, true);
+}
+
+static void indexedXp_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	uint8_t offset = 0;
+
+	read_byte(info, &offset, (*address)++);
+
+	add_indexed_operand(info, M680X_REG_X, true, 1, M680X_OFFSET_BITS_8,
+		(uint16_t)offset, false);
+}
+
+static void imm_idx12_x_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op = &m680x->operands[m680x->op_count++];
+
+	indexed12_hdlr(MI, info, address);
+	op->type = M680X_OP_IMMEDIATE;
+
+	if (info->insn == M680X_INS_MOVW) {
+		uint16_t imm16 = 0;
+
+		read_word(info, &imm16, *address);
+		op->imm = (int16_t)imm16;
+		op->size = 2;
+	}
+	else {
+		uint8_t imm8 = 0;
+
+		read_byte(info, &imm8, *address);
+		op->imm = (int8_t)imm8;
+		op->size = 1;
+	}
+
+	set_operand_size(info, op, 1);
+}
+
+static void ext_idx12_x_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_m680x_op *op0 = &m680x->operands[m680x->op_count++];
+	uint16_t imm16 = 0;
+
+	indexed12_hdlr(MI, info, address);
+	read_word(info, &imm16, *address);
+	op0->type = M680X_OP_EXTENDED;
+	op0->ext.address = (int16_t)imm16;
+	set_operand_size(info, op0, 1);
+}
+
+// handler for CPU12 DBEQ/DNBE/IBEQ/IBNE/TBEQ/TBNE instructions.
+// Example: DBNE X,$1000
+static void loop_hdlr(MCInst *MI, m680x_info *info, uint16_t *address)
+{
+	static const m680x_reg index_to_reg_id[] = {
+		M680X_REG_A, M680X_REG_B, M680X_REG_INVALID, M680X_REG_INVALID,
+		M680X_REG_D, M680X_REG_X, M680X_REG_Y, M680X_REG_S,
+	};
+	static const m680x_insn index_to_insn_id[] = {
+		M680X_INS_DBEQ, M680X_INS_DBNE, M680X_INS_TBEQ, M680X_INS_TBNE,
+		M680X_INS_IBEQ, M680X_INS_IBNE, M680X_INS_ILLGL, M680X_INS_ILLGL
+	};
+	cs_m680x *m680x = &info->m680x;
+	uint8_t post_byte = 0;
+	uint8_t rel = 0;
+	cs_m680x_op *op;
+
+	read_byte(info, &post_byte, (*address)++);
+
+	info->insn = index_to_insn_id[(post_byte >> 5) & 0x07];
+
+	if (info->insn == M680X_INS_ILLGL) {
+		illegal_hdlr(MI, info, address);
+	};
+
+	read_byte(info, &rel, (*address)++);
+
+	add_reg_operand(info, index_to_reg_id[post_byte & 0x07]);
+
+	op = &m680x->operands[m680x->op_count++];
+
+	op->type = M680X_OP_RELATIVE;
+
+	op->rel.offset = (post_byte & 0x10) ? 0xff00 | rel : rel;
+
+	op->rel.address = *address + op->rel.offset;
+
+	add_insn_group(MI->flat_insn->detail, M680X_GRP_BRAREL);
+}
+
+static void (*const g_insn_handler[])(MCInst *, m680x_info *, uint16_t *) = {
+	illegal_hdlr,
+	relative8_hdlr,
+	relative16_hdlr,
+	immediate_hdlr, // 8-bit
+	immediate_hdlr, // 16-bit
+	immediate_hdlr, // 32-bit
+	direct_hdlr,
+	extended_hdlr,
+	indexedX_hdlr,
+	indexedY_hdlr,
+	indexed09_hdlr,
+	inherent_hdlr,
+	reg_reg09_hdlr,
+	reg_bits_hdlr,
+	bit_move_hdlr,
+	tfm_hdlr,
+	opidx_hdlr,
+	opidx_dir_rel_hdlr,
+	indexedX0_hdlr,
+	indexedX16_hdlr,
+	imm_rel_hdlr,
+	indexedS_hdlr,
+	indexedS16_hdlr,
+	indexedXp_hdlr,
+	indexedX0p_hdlr,
+	indexed12_hdlr,
+	indexed12_hdlr, // subset of indexed12
+	reg_reg12_hdlr,
+	loop_hdlr,
+	index_hdlr,
+	imm_idx12_x_hdlr,
+	imm_idx12_x_hdlr,
+	ext_idx12_x_hdlr,
+}; /* handler function pointers */
+
+/* Disasemble one instruction at address and store in str_buff */
+static unsigned int m680x_disassemble(MCInst *MI, m680x_info *info,
+	uint16_t address)
+{
+	cs_m680x *m680x = &info->m680x;
+	cs_detail *detail = MI->flat_insn->detail;
+	uint16_t base_address = address;
+	insn_desc insn_description;
+	e_access_mode access_mode;
+
+	if (detail != NULL) {
+		memset(detail, 0, offsetof(cs_detail, m680x)+sizeof(cs_m680x));
+	}
+
+	memset(&insn_description, 0, sizeof(insn_description));
+	memset(m680x, 0, sizeof(*m680x));
+	info->insn_size = 1;
+
+	if (decode_insn(info, address, &insn_description)) {
+		m680x_reg reg;
+
+		if (insn_description.opcode > 0xff)
+			address += 2; // 8-bit opcode + page prefix
+		else
+			address++; // 8-bit opcode only
+
+		info->insn = insn_description.insn;
+
+		MCInst_setOpcode(MI, insn_description.opcode);
+
+		reg = g_insn_props[info->insn].reg0;
+
+		if (reg != M680X_REG_INVALID) {
+			if (reg == M680X_REG_HX &&
+				(!info->cpu->reg_byte_size[reg]))
+				reg = M680X_REG_X;
+
+			add_reg_operand(info, reg);
+			// First (or second) operand is a register which is
+			// part of the mnemonic
+			m680x->flags |= M680X_FIRST_OP_IN_MNEM;
+			reg = g_insn_props[info->insn].reg1;
+
+			if (reg != M680X_REG_INVALID) {
+				if (reg == M680X_REG_HX &&
+					(!info->cpu->reg_byte_size[reg]))
+					reg = M680X_REG_X;
+
+				add_reg_operand(info, reg);
+				m680x->flags |= M680X_SECOND_OP_IN_MNEM;
+			}
+		}
+
+		// Call addressing mode specific instruction handler
+		(g_insn_handler[insn_description.hid[0]])(MI, info,
+			&address);
+		(g_insn_handler[insn_description.hid[1]])(MI, info,
+			&address);
+
+		add_insn_group(detail, g_insn_props[info->insn].group);
+
+		if (g_insn_props[info->insn].cc_modified &&
+			(info->cpu->insn_cc_not_modified[0] != info->insn) &&
+			(info->cpu->insn_cc_not_modified[1] != info->insn))
+			add_reg_to_rw_list(MI, M680X_REG_CC, MODIFY);
+
+		access_mode = g_insn_props[info->insn].access_mode;
+
+		// Fix for M6805 BSET/BCLR. It has a differnt operand order
+		// in comparison to the M6811
+		if ((info->cpu->insn_cc_not_modified[0] == info->insn) ||
+			(info->cpu->insn_cc_not_modified[1] == info->insn))
+			access_mode = rmmm;
+
+		build_regs_read_write_counts(MI, info, access_mode);
+		add_operators_access(MI, info, access_mode);
+
+		if (g_insn_props[info->insn].update_reg_access)
+			set_changed_regs_read_write_counts(MI, info);
+
+		info->insn_size = (uint8_t)insn_description.insn_size;
+
+		return info->insn_size;
+	}
+	else
+		MCInst_setOpcode(MI, insn_description.opcode);
+
+	// Illegal instruction
+	address = base_address;
+	illegal_hdlr(MI, info, &address);
+	return 1;
+}
+
+// Tables to get the byte size of a register on the CPU
+// based on an enum m680x_reg value.
+// Invalid registers return 0.
+static const uint8_t g_m6800_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_m6805_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_m6808_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 1, 1, 0, 2, 0, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_m6801_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_m6811_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_cpu12_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 2, 2, 2, 0, 0, 0, 2, 2, 2
+};
+
+static const uint8_t g_m6809_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 0, 0, 0, 2, 0, 1, 1, 0, 0, 0, 2, 2, 2, 2, 0, 0, 2, 0, 0
+};
+
+static const uint8_t g_hd6309_reg_byte_size[22] = {
+	// A  B  E  F  0  D  W  CC DP MD HX H  X  Y  S  U  V  Q  PC T2 T3
+	0, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 0, 0, 2, 2, 2, 2, 2, 4, 2, 0, 0
+};
+
+// Table to check for a valid register nibble on the M6809 CPU
+// used for TFR and EXG instruction.
+static const bool m6809_tfr_reg_valid[16] = {
+	true, true, true, true, true,  true,  false, false,
+	true, true, true, true, false, false, false, false,
+};
+
+static const cpu_tables g_cpu_tables[] = {
+	{
+		// M680X_CPU_TYPE_INVALID
+		NULL,
+		{ NULL, NULL },
+		{ 0, 0 },
+		{ 0x00, 0x00, 0x00 },
+		{ NULL, NULL, NULL },
+		{ 0, 0, 0 },
+		NULL,
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6301
+		&g_m6800_inst_page1_table[0],
+		{ &g_m6801_inst_overlay_table[0], &g_hd6301_inst_overlay_table[0] },
+		{
+			ARR_SIZE(g_m6801_inst_overlay_table),
+			ARR_SIZE(g_hd6301_inst_overlay_table)
+		},
+		{ 0x00, 0x00, 0x00 },
+		{ NULL, NULL, NULL },
+		{ 0, 0, 0 },
+		&g_m6801_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6309
+		&g_m6809_inst_page1_table[0],
+		{ &g_hd6309_inst_overlay_table[0], NULL },
+		{ ARR_SIZE(g_hd6309_inst_overlay_table), 0 },
+		{ 0x10, 0x11, 0x00 },
+		{ &g_hd6309_inst_page2_table[0], &g_hd6309_inst_page3_table[0], NULL },
+		{
+			ARR_SIZE(g_hd6309_inst_page2_table),
+			ARR_SIZE(g_hd6309_inst_page3_table),
+			0
+		},
+		&g_hd6309_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6800
+		&g_m6800_inst_page1_table[0],
+		{ NULL, NULL },
+		{ 0, 0 },
+		{ 0x00, 0x00, 0x00 },
+		{ NULL, NULL, NULL },
+		{ 0, 0, 0 },
+		&g_m6800_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6801
+		&g_m6800_inst_page1_table[0],
+		{ &g_m6801_inst_overlay_table[0], NULL },
+		{ ARR_SIZE(g_m6801_inst_overlay_table), 0 },
+		{ 0x00, 0x00, 0x00 },
+		{ NULL, NULL, NULL },
+		{ 0, 0, 0 },
+		&g_m6801_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6805
+		&g_m6805_inst_page1_table[0],
+		{ NULL, NULL },
+		{ 0, 0 },
+		{ 0x00, 0x00, 0x00 },
+		{ NULL, NULL, NULL },
+		{ 0, 0, 0 },
+		&g_m6805_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_BCLR, M680X_INS_BSET }
+	},
+	{
+		// M680X_CPU_TYPE_6808
+		&g_m6805_inst_page1_table[0],
+		{ &g_m6808_inst_overlay_table[0], NULL },
+		{ ARR_SIZE(g_m6808_inst_overlay_table), 0 },
+		{ 0x9E, 0x00, 0x00 },
+		{ &g_m6808_inst_page2_table[0], NULL, NULL },
+		{ ARR_SIZE(g_m6808_inst_page2_table), 0, 0 },
+		&g_m6808_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_BCLR, M680X_INS_BSET }
+	},
+	{
+		// M680X_CPU_TYPE_6809
+		&g_m6809_inst_page1_table[0],
+		{ NULL, NULL },
+		{ 0, 0 },
+		{ 0x10, 0x11, 0x00 },
+		{
+			&g_m6809_inst_page2_table[0],
+			&g_m6809_inst_page3_table[0],
+			NULL
+		},
+		{
+			ARR_SIZE(g_m6809_inst_page2_table),
+			ARR_SIZE(g_m6809_inst_page3_table),
+			0
+		},
+		&g_m6809_reg_byte_size[0],
+		&m6809_tfr_reg_valid[0],
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_6811
+		&g_m6800_inst_page1_table[0],
+		{
+			&g_m6801_inst_overlay_table[0],
+			&g_m6811_inst_overlay_table[0]
+		},
+		{
+			ARR_SIZE(g_m6801_inst_overlay_table),
+			ARR_SIZE(g_m6811_inst_overlay_table)
+		},
+		{ 0x18, 0x1A, 0xCD },
+		{
+			&g_m6811_inst_page2_table[0],
+			&g_m6811_inst_page3_table[0],
+			&g_m6811_inst_page4_table[0]
+		},
+		{
+			ARR_SIZE(g_m6811_inst_page2_table),
+			ARR_SIZE(g_m6811_inst_page3_table),
+			ARR_SIZE(g_m6811_inst_page4_table)
+		},
+		&g_m6811_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_CPU12
+		&g_cpu12_inst_page1_table[0],
+		{ NULL, NULL },
+		{ 0, 0 },
+		{ 0x18, 0x00, 0x00 },
+		{ &g_cpu12_inst_page2_table[0], NULL, NULL },
+		{ ARR_SIZE(g_cpu12_inst_page2_table), 0, 0 },
+		&g_cpu12_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_INVLD, M680X_INS_INVLD }
+	},
+	{
+		// M680X_CPU_TYPE_HCS08
+		&g_m6805_inst_page1_table[0],
+		{
+			&g_m6808_inst_overlay_table[0],
+			&g_hcs08_inst_overlay_table[0]
+		},
+		{
+			ARR_SIZE(g_m6808_inst_overlay_table),
+			ARR_SIZE(g_hcs08_inst_overlay_table)
+		},
+		{ 0x9E, 0x00, 0x00 },
+		{ &g_hcs08_inst_page2_table[0], NULL, NULL },
+		{ ARR_SIZE(g_hcs08_inst_page2_table), 0, 0 },
+		&g_m6808_reg_byte_size[0],
+		NULL,
+		{ M680X_INS_BCLR, M680X_INS_BSET }
+	},
+};
+
+static const char * const s_cpu_type[] = {
+	"INVALID", "6301", "6309", "6800", "6801", "6805", "6808",
+	"6809", "6811", "CPU12", "HCS08",
+};
+
+static bool m680x_setup_internals(m680x_info *info, e_cpu_type cpu_type,
+	uint16_t address,
+	const uint8_t *code, uint16_t code_len)
+{
+	if (cpu_type == M680X_CPU_TYPE_INVALID) {
+		return false;
+	}
+
+	info->code = code;
+	info->size = code_len;
+	info->offset = address;
+	info->cpu_type = cpu_type;
+
+	info->cpu = &g_cpu_tables[info->cpu_type];
+
+	return true;
+}
+
+bool M680X_getInstruction(csh ud, const uint8_t *code, size_t code_len,
+	MCInst *MI, uint16_t *size, uint64_t address, void *inst_info)
+{
+	unsigned int insn_size = 0;
+	e_cpu_type cpu_type = M680X_CPU_TYPE_INVALID; // No default CPU type
+	cs_struct *handle = (cs_struct *)ud;
+	m680x_info *info = (m680x_info *)handle->printer_info;
+
+	MCInst_clear(MI);
+
+	if (handle->mode & CS_MODE_M680X_6800)
+		cpu_type = M680X_CPU_TYPE_6800;
+
+	else if (handle->mode & CS_MODE_M680X_6801)
+		cpu_type = M680X_CPU_TYPE_6801;
+
+	else if (handle->mode & CS_MODE_M680X_6805)
+		cpu_type = M680X_CPU_TYPE_6805;
+
+	else if (handle->mode & CS_MODE_M680X_6808)
+		cpu_type = M680X_CPU_TYPE_6808;
+
+	else if (handle->mode & CS_MODE_M680X_HCS08)
+		cpu_type = M680X_CPU_TYPE_HCS08;
+
+	else if (handle->mode & CS_MODE_M680X_6809)
+		cpu_type = M680X_CPU_TYPE_6809;
+
+	else if (handle->mode & CS_MODE_M680X_6301)
+		cpu_type = M680X_CPU_TYPE_6301;
+
+	else if (handle->mode & CS_MODE_M680X_6309)
+		cpu_type = M680X_CPU_TYPE_6309;
+
+	else if (handle->mode & CS_MODE_M680X_6811)
+		cpu_type = M680X_CPU_TYPE_6811;
+
+	else if (handle->mode & CS_MODE_M680X_CPU12)
+		cpu_type = M680X_CPU_TYPE_CPU12;
+
+	if (cpu_type != M680X_CPU_TYPE_INVALID &&
+		m680x_setup_internals(info, cpu_type, (uint16_t)address, code,
+			(uint16_t)code_len))
+		insn_size = m680x_disassemble(MI, info, (uint16_t)address);
+
+	if (insn_size == 0) {
+		*size = 1;
+		return false;
+	}
+
+	// Make sure we always stay within range
+	if (insn_size > code_len) {
+		*size = (uint16_t)code_len;
+		return false;
+	}
+	else
+		*size = (uint16_t)insn_size;
+
+	return true;
+}
+
+cs_err M680X_disassembler_init(cs_struct *ud)
+{
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6800_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6800_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6801_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6801_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6805_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6805_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6808_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6808_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6811_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6811_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_cpu12_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_cpu12_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_REG_ENDING != ARR_SIZE(g_m6809_reg_byte_size)) {
+		CS_ASSERT(M680X_REG_ENDING == ARR_SIZE(g_m6809_reg_byte_size));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_INS_ENDING != ARR_SIZE(g_insn_props)) {
+		CS_ASSERT(M680X_INS_ENDING == ARR_SIZE(g_insn_props));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_CPU_TYPE_ENDING != ARR_SIZE(s_cpu_type)) {
+		CS_ASSERT(M680X_CPU_TYPE_ENDING == ARR_SIZE(s_cpu_type));
+
+		return CS_ERR_MODE;
+	}
+
+	if (M680X_CPU_TYPE_ENDING != ARR_SIZE(g_cpu_tables)) {
+		CS_ASSERT(M680X_CPU_TYPE_ENDING == ARR_SIZE(g_cpu_tables));
+
+		return CS_ERR_MODE;
+	}
+
+	if (HANDLER_ID_ENDING != ARR_SIZE(g_insn_handler)) {
+		CS_ASSERT(HANDLER_ID_ENDING == ARR_SIZE(g_insn_handler));
+
+		return CS_ERR_MODE;
+	}
+
+	if (ACCESS_MODE_ENDING !=  MATRIX_SIZE(g_access_mode_to_access)) {
+		CS_ASSERT(ACCESS_MODE_ENDING ==
+			MATRIX_SIZE(g_access_mode_to_access));
+
+		return CS_ERR_MODE;
+	}
+
+	return CS_ERR_OK;
+}
+
+#ifndef CAPSTONE_DIET
+void M680X_reg_access(const cs_insn *insn,
+	cs_regs regs_read, uint8_t *regs_read_count,
+	cs_regs regs_write, uint8_t *regs_write_count)
+{
+	if (insn->detail == NULL) {
+		*regs_read_count = 0;
+		*regs_write_count = 0;
+	}
+	else {
+		*regs_read_count = insn->detail->regs_read_count;
+		*regs_write_count = insn->detail->regs_write_count;
+
+		memcpy(regs_read, insn->detail->regs_read,
+			*regs_read_count * sizeof(insn->detail->regs_read[0]));
+		memcpy(regs_write, insn->detail->regs_write,
+			*regs_write_count *
+			sizeof(insn->detail->regs_write[0]));
+	}
+}
+#endif
+
+#endif
+