// Copyright (c) 2020 - 2025 kio@little-bat.de
// BSD-2-Clause license
// https://opensource.org/licenses/BSD-2-Clause


#include "doctest/doctest/doctest.h"
#include "kio/kio.h"
#include "z80_DisAss.h"
#include "z80_opcodes.h"

using namespace z80;


static const uint8 i8080_len[256] = {
	1, 3, 1, 1, 1, 1, 2, 1, //	NOP,		LD_BC_NN,	LD_xBC_A,	INC_BC,		INC_B,		DEC_B,		LD_B_N,		RLCA,
	1, 1, 1, 1, 1, 1, 2, 1, //	NOP/EX_AF_AF,ADD_HL_BC,	LD_A_xBC,	DEC_BC,		INC_C,		DEC_C,		LD_C_N,		RRCA,
	1, 3, 1, 1, 1, 1, 2, 1, //	NOP/DJNZ,	LD_DE_NN,	LD_xDE_A,	INC_DE,		INC_D,		DEC_D,		LD_D_N,		RLA,
	1, 1, 1, 1, 1, 1, 2, 1, //	NOP/JR, 	ADD_HL_DE,	LD_A_xDE,	DEC_DE,		INC_E,		DEC_E,		LD_E_N,		RRA,
	1, 3, 3, 1, 1, 1, 2, 1, //	NOP/JR_NZ,	LD_HL_NN,	LD_xNN_HL,	INC_HL,		INC_H,		DEC_H,		LD_H_N,		DAA,
	1, 1, 3, 1, 1, 1, 2, 1, //	NOP/JR_Z,	ADD_HL_HL,	LD_HL_xNN,	DEC_HL,		INC_L,		DEC_L,		LD_L_N,		CPL,
	1, 3, 3, 1, 1, 1, 2, 1, //	NOP/JR_NC,	LD_SP_NN,	LD_xNN_A,	INC_SP,		INC_xHL,	DEC_xHL,	LD_xHL_N,	SCF,
	1, 1, 3, 1, 1, 1, 2, 1, //	NOP/JR_C,	ADD_HL_SP,	LD_A_xNN,	DEC_SP,		INC_A,		DEC_A,		LD_A_N,		CCF,

	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ld
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ld
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ari
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ari

	1, 1, 3, 3, 3, 1, 2, 1, //	RET_NZ,		POP_BC,		JP_NZ,		JP,			CALL_NZ,	PUSH_BC,	ADD_N,		RST00,
	1, 1, 3, 3, 3, 3, 2, 1, //	RET_Z,		RET,		JP_Z,		JP/PFX_CB,	CALL_Z,		CALL,		ADC_N,		RST08,
	1, 1, 3, 2, 3, 1, 2, 1, //	RET_NC,		POP_DE,		JP_NC,		OUTA,		CALL_NC,	PUSH_DE,	SUB_N,		RST10,
	1, 1, 3, 2, 3, 3, 2, 1, //	RET_C,		EXX,		JP_C,		INA,		CALL_C,		CALL/PFX_IX, SBC_N,		RST18,
	1, 1, 3, 1, 3, 1, 2, 1, //	RET_PO,		POP_HL,		JP_PO,		EX_HL_xSP,	CALL_PO,	PUSH_HL,	AND_N,		RST20,
	1, 1, 3, 1, 3, 3, 2, 1, //	RET_PE,		JP_HL,		JP_PE,		EX_DE_HL,	CALL_PE,	CALL/PFX_ED, XOR_N,		RST28,
	1, 1, 3, 1, 3, 1, 2, 1, //	RET_P,		POP_AF,		JP_P,		DI,			CALL_P,		PUSH_AF,	OR_N,		RST30,
	1, 1, 3, 1, 3, 3, 2, 1, //	RET_M,		LD_SP_HL,	JP_M,		EI,			CALL_M,		CALL/PFX_IY, CP_N,		RST38
};

static const uint8 z80_len[256] = {
	1, 3, 1, 1, 1, 1, 2, 1, //	NOP,		LD_BC_NN,	LD_xBC_A,	INC_BC,		INC_B,		DEC_B,		LD_B_N,		RLCA,
	1, 1, 1, 1, 1, 1, 2, 1, //	EX_AF_AF,	ADD_HL_BC,	LD_A_xBC,	DEC_BC,		INC_C,		DEC_C,		LD_C_N,		RRCA,
	2, 3, 1, 1, 1, 1, 2, 1, //	DJNZ,		LD_DE_NN,	LD_xDE_A,	INC_DE,		INC_D,		DEC_D,		LD_D_N,		RLA,
	2, 1, 1, 1, 1, 1, 2, 1, //	JR, 		ADD_HL_DE,	LD_A_xDE,	DEC_DE,		INC_E,		DEC_E,		LD_E_N,		RRA,
	2, 3, 3, 1, 1, 1, 2, 1, //	JR_NZ,		LD_HL_NN,	LD_xNN_HL,	INC_HL,		INC_H,		DEC_H,		LD_H_N,		DAA,
	2, 1, 3, 1, 1, 1, 2, 1, //	JR_Z,		ADD_HL_HL,	LD_HL_xNN,	DEC_HL,		INC_L,		DEC_L,		LD_L_N,		CPL,
	2, 3, 3, 1, 1, 1, 2, 1, //	JR_NC,		LD_SP_NN,	LD_xNN_A,	INC_SP,		INC_xHL,	DEC_xHL,	LD_xHL_N,	SCF,
	2, 1, 3, 1, 1, 1, 2, 1, //	JR_C,		ADD_HL_SP,	LD_A_xNN,	DEC_SP,		INC_A,		DEC_A,		LD_A_N,		CCF,

	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ld
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ld
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ari
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // ari

	1, 1, 3, 3, 3, 1, 2, 1, //	RET_NZ,		POP_BC,		JP_NZ,		JP,			CALL_NZ,	PUSH_BC,	ADD_N,		RST00,
	1, 1, 3, 0, 3, 3, 2, 1, //	RET_Z,		RET,		JP_Z,		PFX_CB,		CALL_Z,		CALL,		ADC_N,		RST08,
	1, 1, 3, 2, 3, 1, 2, 1, //	RET_NC,		POP_DE,		JP_NC,		OUTA,		CALL_NC,	PUSH_DE,	SUB_N,		RST10,
	1, 1, 3, 2, 3, 0, 2, 1, //	RET_C,		EXX,		JP_C,		INA,		CALL_C,		PFX_IX,		SBC_N,		RST18,
	1, 1, 3, 1, 3, 1, 2, 1, //	RET_PO,		POP_HL,		JP_PO,		EX_HL_xSP,	CALL_PO,	PUSH_HL,	AND_N,		RST20,
	1, 1, 3, 1, 3, 0, 2, 1, //	RET_PE,		JP_HL,		JP_PE,		EX_DE_HL,	CALL_PE,	PFX_ED,		XOR_N,		RST28,
	1, 1, 3, 1, 3, 1, 2, 1, //	RET_P,		POP_AF,		JP_P,		DI,			CALL_P,		PUSH_AF,	OR_N,		RST30,
	1, 1, 3, 1, 3, 0, 2, 1, //	RET_M,		LD_SP_HL,	JP_M,		EI,			CALL_M,		PFX_IY,		CP_N,		RST38
};

static const uint8 z80_ix_len[256] = {
	2, 4, 2, 2, 2, 2, 3,
	2, //	NOP,		LD_BC_NN,	LD_xBC_A,	INC_BC,		INC_B,		DEC_B,		LD_B_N,		RLCA,
	2, 2, 2, 2, 2, 2, 3,
	2,						//	EX_AF_AF,	ADD_HL_BC,	LD_A_xBC,	DEC_BC,		INC_C,		DEC_C,		LD_C_N,		RRCA,
	3, 4, 2, 2, 2, 2, 3, 2, //	DJNZ,		LD_DE_NN,	LD_xDE_A,	INC_DE,		INC_D,		DEC_D,		LD_D_N,		RLA,
	3, 2, 2, 2, 2, 2, 3, 2, //	JR, 		ADD_HL_DE,	LD_A_xDE,	DEC_DE,		INC_E,		DEC_E,		LD_E_N,		RRA,
	3, 4, 4, 2, 2, 2, 3, 2, //	JR_NZ,		LD_HL_NN,	LD_xNN_HL,	INC_HL,		INC_H,		DEC_H,		LD_H_N,		DAA,
	3, 2, 4, 2, 2, 2, 3, 2, //	JR_Z,		ADD_HL_HL,	LD_HL_xNN,	DEC_HL,		INC_L,		DEC_L,		LD_L_N,		CPL,
	3, 4, 4, 2, 3, 3, 4, 2, //	JR_NC,		LD_SP_NN,	LD_xNN_A,	INC_SP,		INC_xHL,	DEC_xHL,	LD_xHL_N,	SCF,
	3, 2, 4, 2, 2, 2, 3, 2, //	JR_C,		ADD_HL_SP,	LD_A_xNN,	DEC_SP,		INC_A,		DEC_A,		LD_A_N,		CCF,

	2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // ld
	2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3, 3, 3, 3, 3, 3, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, // ld
	2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // ari
	2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, // ari

	// 0xCB: excluded (own list)
	// 0xDD, 0xED, 0xFD: size = 1 because the 0xDD/0xFD prefix has no effect

	2, 2, 4, 4, 4, 2, 3,
	2, //	RET_NZ,		POP_BC,		JP_NZ,		JP,			CALL_NZ,	PUSH_BC,	ADD_N,		RST00,
	2, 2, 4, 0, 4, 4, 3,
	2, //	RET_Z,		RET,		JP_Z,		PFX_CB,		CALL_Z,		CALL,		ADC_N,		RST08,
	2, 2, 4, 3, 4, 2, 3,
	2, //	RET_NC,		POP_DE,		JP_NC,		OUTA,		CALL_NC,	PUSH_DE,	SUB_N,		RST10,
	2, 2, 4, 3, 4, 1, 3,
	2, //	RET_C,		EXX,		JP_C,		INA,		CALL_C,		PFX_IX,		SBC_N,		RST18,
	2, 2, 4, 2, 4, 2, 3,
	2, //	RET_PO,		POP_HL,		JP_PO,		EX_HL_xSP,	CALL_PO,	PUSH_HL,	AND_N,		RST20,
	2, 2, 4, 2, 4, 1, 3,
	2, //	RET_PE,		JP_HL,		JP_PE,		EX_DE_HL,	CALL_PE,	PFX_ED,		XOR_N,		RST28,
	2, 2, 4, 2, 4, 2, 3,
	2, //	RET_P,		POP_AF,		JP_P,		DI,			CALL_P,		PUSH_AF,	OR_N,		RST30,
	2, 2, 4, 2, 4, 1, 3,
	2, //	RET_M,		LD_SP_HL,	JP_M,		EI,			CALL_M,		PFX_IY,		CP_N,		RST38
};

static const uint8 z80_ed_len[256] = {
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

	2, 2, 2, 4, 2, 2, 2, 2, // IN_B_xC,	OUT_xC_B,	SBC_HL_BC,	LD_xNN_BC,	NEG,	RETN,	IM_0,	LD_I_A,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_C_xC,	OUT_xC_C,	ADC_HL_BC,	LD_BC_xNN,	ED4C,	RETI,	ED4E,	LD_R_A,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_D_xC,	OUT_xC_D,	SBC_HL_DE,	LD_xNN_DE,	ED54,	ED55,	IM_1,	LD_A_I,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_E_xC,	OUT_xC_E,	ADC_HL_DE,	LD_DE_xNN,	ED5C,	ED5D,	IM_2,	LD_A_R,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_H_xC,	OUT_xC_H,	SBC_HL_HL,	ED_xNN_HL,	ED64,	ED65,	ED66,	RRD,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_L_xC,	OUT_xC_L,	ADC_HL_HL,	ED_HL_xNN,	ED6C,	ED6D,	ED6E,	RLD,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_F_xC,	NOP,		SBC_HL_SP,	LD_xNN_SP,	ED74,	ED75,	ED76,	ED77,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_A_xC,	OUT_xC_A,	ADC_HL_SP,	LD_SP_xNN,	ED7C,	ED7D,	ED7E,	ED7F,

	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
};

static const uint8 z180_ed_len[256] = {
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_B_xN  OUT0_xN_B	 NOP  TST_B	  NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_C_xN  OUT0_xN_C	 NOP  TST_C	  NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_D_xN  OUT0_xN_D	 NOP  TST_D	  NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_E_xN  OUT0_xN_E	 NOP  TST_E	  NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_H_xN  OUT0_xN_H	 NOP  TST_H	  NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_L_xN  OUT0_xN_L	 NOP  TST_L	  NOP  NOP  NOP  NOP
	3, 2, 2, 2, 2, 2, 2, 2, //	IN0_F_xN  ED31		 NOP  TST_xHL NOP  NOP  NOP  NOP
	3, 3, 2, 2, 2, 2, 2, 2, //	IN0_A_xN  OUT0_xN_A	 NOP  TST_A	  NOP  NOP  NOP  NOP

	2, 2, 2, 4, 2, 2, 2, 2, // IN_B_xC, OUT_xC_B,	SBC_HL_BC,	LD_xNN_BC,	NEG,	RETN,	IM_0,	LD_I_A,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_C_xC, OUT_xC_C,	ADC_HL_BC,	LD_BC_xNN,	ED4C,	RETI,	ED4E,	LD_R_A,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_D_xC, OUT_xC_D,	SBC_HL_DE,	LD_xNN_DE,	ED54,	ED55,	IM_1,	LD_A_I,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_E_xC, OUT_xC_E,	ADC_HL_DE,	LD_DE_xNN,	ED5C,	ED5D,	IM_2,	LD_A_R,
	2, 2, 2, 4, 3, 2, 2, 2, // IN_H_xC, OUT_xC_H,	SBC_HL_HL,	ED_xNN_HL,	TST_N,	ED65,	ED66,	RRD,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_L_xC, OUT_xC_L,	ADC_HL_HL,	ED_HL_xNN,	ED6C,	ED6D,	ED6E,	RLD,
	2, 2, 2, 4, 3, 2, 2, 2, // IN_F_xC, ED71		SBC_HL_SP,	LD_xNN_SP,	TSTIO,	ED75,	ED76,	ED77,
	2, 2, 2, 4, 2, 2, 2, 2, // IN_A_xC, OUT_xC_A,	ADC_HL_SP,	LD_SP_xNN,	ED7C,	ED7D,	ED7E,	ED7F,

	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,

	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
};

TEST_CASE("z80_opcode_length")
{
	SUBCASE("") { logline("●●● %s:", __FILE__); }

	// i8080:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {uint8(i), 0, 0, 0};
			CHECK(opcode_length(Cpu8080, z) == i8080_len[i]);
		}
	}

	// z80 no pfx:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {uint8(i), 0, 0, 0};
			if (z80_len[i]) CHECK(opcode_length(CpuZ80, z) == z80_len[i]);
		}
	}

	// z180 no pfx:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {uint8(i), 0, 0, 0};
			if (z80_len[i]) CHECK(opcode_length(CpuZ180, z) == z80_len[i]);
		}
	}

	// z80 PFX_CB:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {0xcb, uint8(i), 0, 0};
			CHECK(opcode_length(CpuZ80, z) == 2);
		}
	}

	// z180 PFX_CB:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {0xcb, uint8(i), 0, 0};
			CHECK(opcode_length(CpuZ180, z) == 2);
		}
	}

	// z80 IX/IY + CB:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {uint8(i & 1 ? 0xdd : 0xfd), 0xcb, 0, uint8(i)};
			CHECK(opcode_length(CpuZ80, z) == 4);
		}
	}

	// z180 IX/IY + CB:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {uint8(i & 1 ? 0xfd : 0xdd), 0xcb, 0, uint8(i)};
			CHECK(opcode_length(CpuZ180, z) == 4); // sll as for z80 too
		}
	}

	// z80 IX/IY:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			if (i == 0xcb) continue;
			uint8 z[4] = {uint8(i & 1 ? 0xdd : 0xfd), uint8(i), 0, 0};
			if (opcode_length(CpuZ80, z) != z80_ix_len[i]) logline("z80: ix,%02x failed", i);
			CHECK(opcode_length(CpuZ80, z) == z80_ix_len[i]);
		}
	}

	// z180 IX/IY:
	// note: illegal opcodes are reported as for z80
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			if (i == 0xcb) continue;
			uint8 z[4] = {uint8(i & 1 ? 0xfd : 0xdd), uint8(i), 0, 0};
			if (opcode_length(CpuZ180, z) != z80_ix_len[i]) logline("z180: ix,%02x failed", i);
			CHECK(opcode_length(CpuZ180, z) == z80_ix_len[i]);
		}
	}

	// z80 PFX_ED:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {0xed, uint8(i), 0, 0};
			CHECK(opcode_length(CpuZ80, z) == z80_ed_len[i]);
		}
	}

	// z180 PFX_ED:
	SUBCASE("")
	{
		for (uint i = 0; i < 256; i++)
		{
			uint8 z[4] = {0xed, uint8(i), 0, 0};
			if (opcode_length(CpuZ180, z) != z180_ed_len[i]) logline("z180: ed,%02x failed", i);
			CHECK(opcode_length(CpuZ180, z) == z180_ed_len[i]);
		}
	}

	SUBCASE("")
	{
		static const Byte ld_a_xix[] = {0xdd, LD_A_xHL, 0};
		CHECK(opcode_length(CpuZ180, ld_a_xix) == 3);
		static const Byte ld_xix_a[] = {0xdd, LD_xHL_A, 0};
		CHECK(opcode_length(CpuZ180, ld_xix_a) == 3);
		static const Byte ld_b_xix[] = {0xdd, LD_B_xHL, 0};
		CHECK(opcode_length(CpuZ180, ld_b_xix) == 3);
		static const Byte ld_xix_b[] = {0xdd, LD_xHL_B, 0};
		CHECK(opcode_length(CpuZ180, ld_xix_b) == 3);
		static const Byte ld_c_xix[] = {0xdd, LD_C_xHL, 0};
		CHECK(opcode_length(CpuZ180, ld_c_xix) == 3);
		static const Byte ld_xix_c[] = {0xdd, LD_xHL_C, 0};
		CHECK(opcode_length(CpuZ180, ld_xix_c) == 3);
		static const Byte ld_ix_halt[] = {0xdd, HALT, 0};
		CHECK(opcode_length(CpuZ180, ld_ix_halt) == 2);
		static const Byte or_xix[] = {0xdd, OR_xHL, 0};
		CHECK(opcode_length(CpuZ180, or_xix) == 3);
		static const Byte xor_xix[] = {0xdd, XOR_xHL, 0};
		CHECK(opcode_length(CpuZ180, xor_xix) == 3);
		static const Byte or_xh[] = {0xdd, OR_H, 0};
		CHECK(opcode_length(CpuZ80, or_xh) == 2);
		static const Byte xor_xl[] = {0xdd, XOR_L, 0};
		CHECK(opcode_length(CpuZ80, xor_xl) == 2);
	}
}