#pragma once

#include "Utilities/types.h"

// SPU Instruction Type
struct spu_itype
{
	static constexpr struct memory_tag{} memory{}; // Memory Load/Store Instructions
	static constexpr struct constant_tag{} constant{}; // Constant Formation Instructions
	static constexpr struct integer_tag{} integer{}; // Integer and Logical Instructions
	static constexpr struct shiftrot_tag{} shiftrot{}; // Shift and Rotate Instructions
	static constexpr struct compare_tag{} compare{}; // Compare Instructions
	static constexpr struct branch_tag{} branch{}; // Branch Instructions
	static constexpr struct floating_tag{} floating{}; // Floating-Point Instructions
	static constexpr struct quadrop_tag{} _quadrop{}; // 4-op Instructions
	static constexpr struct xfloat_tag{} xfloat{}; // Instructions producing xfloat values

	enum type : unsigned char
	{
		UNK = 0,

		HEQ,
		HEQI,
		HGT,
		HGTI,
		HLGT,
		HLGTI,

		HBR,
		HBRA,
		HBRR,

		STOP,
		STOPD,
		LNOP,
		NOP,
		SYNC,
		DSYNC,
		MFSPR,
		MTSPR,
		RDCH,
		RCHCNT,
		WRCH,

		BR, // branch_tag first
		BRA,
		BRNZ,
		BRZ,
		BRHNZ,
		BRHZ,
		BRSL,
		BRASL,
		IRET,
		BI,
		BISLED,
		BISL,
		BIZ,
		BINZ,
		BIHZ,
		BIHNZ, // branch_tag last

		LQD, // memory_tag first
		LQX,
		LQA,
		LQR,
		STQD,
		STQX,
		STQA,
		STQR, // memory_tag last

		CBD, // constant_tag first
		CBX,
		CHD,
		CHX,
		CWD,
		CWX,
		CDD,
		CDX,
		ILH,
		ILHU,
		IL,
		ILA,
		IOHL,
		FSMBI, // constant_tag last

		AH, // integer_tag first
		AHI,
		A,
		AI,
		SFH,
		SFHI,
		SF,
		SFI,
		ADDX,
		CG,
		CGX,
		SFX,
		BG,
		BGX,
		MPY,
		MPYU,
		MPYI,
		MPYUI,
		MPYH,
		MPYS,
		MPYHH,
		MPYHHA,
		MPYHHU,
		MPYHHAU,
		CLZ,
		CNTB,
		FSMB,
		FSMH,
		FSM,
		GBB,
		GBH,
		GB,
		AVGB,
		ABSDB,
		SUMB,
		XSBH,
		XSHW,
		XSWD,
		AND,
		ANDC,
		ANDBI,
		ANDHI,
		ANDI,
		OR,
		ORC,
		ORBI,
		ORHI,
		ORI,
		ORX,
		XOR,
		XORBI,
		XORHI,
		XORI,
		NAND,
		NOR,
		EQV,

		MPYA, // quadrop_tag first
		SELB,
		SHUFB, // integer_tag last

		FMA, // floating_tag first
		FNMS,
		FMS, // quadrop_tag last

		FA,
		FS,
		FM,
		FREST,
		FRSQEST,
		FI,
		CSFLT,
		CUFLT,
		FRDS, // xfloat_tag last

		DFA,
		DFS,
		DFM,
		DFMA,
		DFNMS,
		DFMS,
		DFNMA,
		FESD,

		CFLTS,
		CFLTU,
		FCEQ,
		FCMEQ,
		FCGT,
		FCMGT,
		FSCRWR,
		FSCRRD,

		DFCEQ,
		DFCMEQ,
		DFCGT,
		DFCMGT,
		DFTSV, // floating_tag last

		SHLH, // shiftrot_tag first
		SHLHI,
		SHL,
		SHLI,
		SHLQBI,
		SHLQBII,
		SHLQBY,
		SHLQBYI,
		SHLQBYBI,
		ROTH,
		ROTHI,
		ROT,
		ROTI,
		ROTQBY,
		ROTQBYI,
		ROTQBYBI,
		ROTQBI,
		ROTQBII,
		ROTHM,
		ROTHMI,
		ROTM,
		ROTMI,
		ROTQMBY,
		ROTQMBYI,
		ROTQMBYBI,
		ROTQMBI,
		ROTQMBII,
		ROTMAH,
		ROTMAHI,
		ROTMA,
		ROTMAI, // shiftrot_tag last

		CEQB, // compare_tag first
		CEQBI,
		CEQH,
		CEQHI,
		CEQ,
		CEQI,
		CGTB,
		CGTBI,
		CGTH,
		CGTHI,
		CGT,
		CGTI,
		CLGTB,
		CLGTBI,
		CLGTH,
		CLGTHI,
		CLGT,
		CLGTI, // compare_tag last
	};

	// Enable address-of operator for spu_decoder<>
	friend constexpr type operator &(type value)
	{
		return value;
	}

	// Test for branch instruction
	friend constexpr bool operator &(type value, branch_tag)
	{
		return value >= BR && value <= BIHNZ;
	}

	// Test for floating point instruction
	friend constexpr bool operator &(type value, floating_tag)
	{
		return value >= FMA && value <= DFTSV;
	}

	// Test for 4-op instruction
	friend constexpr bool operator &(type value, quadrop_tag)
	{
		return value >= MPYA && value <= FMS;
	}

	// Test for xfloat instruction
	friend constexpr bool operator &(type value, xfloat_tag)
	{
		return value >= FMA && value <= FRDS;
	}
};

struct spu_iflag
{
	enum
	{
		use_ra = 1 << 8,
		use_rb = 1 << 9,
		use_rc = 1 << 10,
	};

	enum flag
	{
		UNK = 0,
		HBR,
		HBRA,
		HBRR,
		STOP,
		STOPD,
		LNOP,
		NOP,
		SYNC,
		DSYNC,
		MFSPR,
		MTSPR,
		DFCEQ,
		DFCMEQ,
		DFCGT,
		DFCMGT,
		DFTSV,
		RDCH,
		RCHCNT,
		LQA,
		LQR,
		ILH,
		ILHU,
		IL,
		ILA,
		FSMBI,
		BR,
		BRA,
		BRSL,
		BRASL,
		IRET,
		FSCRRD,

		WRCH = use_rc,
		IOHL,
		STQA,
		STQR,
		BRNZ,
		BRZ,
		BRHNZ,
		BRHZ,

		STQD = use_ra | use_rc,
		BIZ,
		BINZ,
		BIHZ,
		BIHNZ,

		STQX = use_ra | use_rb | use_rc,
		ADDX,
		CGX,
		SFX,
		BGX,
		MPYHHA,
		MPYHHAU,
		MPYA,
		SELB,
		SHUFB,
		DFMA,
		DFNMS,
		DFMS,
		DFNMA,
		FMA,
		FNMS,
		FMS,

		HEQI = use_ra,
		HGTI,
		HLGTI,
		LQD,
		CBD,
		CHD,
		CWD,
		CDD,
		AHI,
		AI,
		SFHI,
		SFI,
		MPYI,
		MPYUI,
		CLZ,
		CNTB,
		FSMB,
		FSMH,
		FSM,
		GBB,
		GBH,
		GB,
		XSBH,
		XSHW,
		XSWD,
		ANDBI,
		ANDHI,
		ANDI,
		ORBI,
		ORHI,
		ORI,
		ORX,
		XORBI,
		XORHI,
		XORI,
		SHLHI,
		SHLI,
		SHLQBII,
		SHLQBYI,
		ROTHI,
		ROTI,
		ROTQBYI,
		ROTQBII,
		ROTHMI,
		ROTMI,
		ROTQMBYI,
		ROTQMBII,
		ROTMAHI,
		ROTMAI,
		CEQBI,
		CEQHI,
		CEQI,
		CGTBI,
		CGTHI,
		CGTI,
		CLGTBI,
		CLGTHI,
		CLGTI,
		BI,
		BISLED,
		BISL,
		FREST,
		FRSQEST,
		CSFLT,
		CFLTS,
		CUFLT,
		CFLTU,
		FRDS,
		FESD,
		FSCRWR,

		HEQ = use_ra | use_rb,
		HGT,
		HLGT,
		LQX,
		CBX,
		CHX,
		CWX,
		CDX,
		AH,
		A,
		SFH,
		SF,
		CG,
		BG,
		MPYHHU,
		MPY,
		MPYU,
		MPYH,
		MPYS,
		MPYHH,
		AVGB,
		ABSDB,
		SUMB,
		AND,
		ANDC,
		OR,
		ORC,
		XOR,
		NAND,
		NOR,
		EQV,
		SHLH,
		SHL,
		SHLQBI,
		SHLQBY,
		SHLQBYBI,
		ROTH,
		ROT,
		ROTQBY,
		ROTQBYBI,
		ROTQBI,
		ROTHM,
		ROTM,
		ROTQMBY,
		ROTQMBYBI,
		ROTQMBI,
		ROTMAH,
		ROTMA,
		CEQB,
		CEQH,
		CEQ,
		CGTB,
		CGTH,
		CGT,
		CLGTB,
		CLGTH,
		CLGT,
		FA,
		DFA,
		FS,
		DFS,
		FM,
		DFM,
		FI,
		FCEQ,
		FCMEQ,
		FCGT,
		FCMGT,
	};

	// Enable address-of operator for spu_decoder<>
	friend constexpr flag operator &(flag value)
	{
		return value;
	}
};

// Encode instruction name: 6 bits per character (0x20..0x5f), max 10
static constexpr u64 spu_iname_encode(const char* ptr, u64 value = 0)
{
	return *ptr == '\0' ? value : spu_iname_encode(ptr + 1, (*ptr - 0x20) | (value << 6));
}

#define NAME(x) x = spu_iname_encode(#x)

struct spu_iname
{
	enum type : u64
	{
		NAME(UNK),
		NAME(HEQ),
		NAME(HEQI),
		NAME(HGT),
		NAME(HGTI),
		NAME(HLGT),
		NAME(HLGTI),
		NAME(HBR),
		NAME(HBRA),
		NAME(HBRR),
		NAME(STOP),
		NAME(STOPD),
		NAME(LNOP),
		NAME(NOP),
		NAME(SYNC),
		NAME(DSYNC),
		NAME(MFSPR),
		NAME(MTSPR),
		NAME(RDCH),
		NAME(RCHCNT),
		NAME(WRCH),
		NAME(LQD),
		NAME(LQX),
		NAME(LQA),
		NAME(LQR),
		NAME(STQD),
		NAME(STQX),
		NAME(STQA),
		NAME(STQR),
		NAME(CBD),
		NAME(CBX),
		NAME(CHD),
		NAME(CHX),
		NAME(CWD),
		NAME(CWX),
		NAME(CDD),
		NAME(CDX),
		NAME(ILH),
		NAME(ILHU),
		NAME(IL),
		NAME(ILA),
		NAME(IOHL),
		NAME(FSMBI),
		NAME(AH),
		NAME(AHI),
		NAME(A),
		NAME(AI),
		NAME(SFH),
		NAME(SFHI),
		NAME(SF),
		NAME(SFI),
		NAME(ADDX),
		NAME(CG),
		NAME(CGX),
		NAME(SFX),
		NAME(BG),
		NAME(BGX),
		NAME(MPY),
		NAME(MPYU),
		NAME(MPYI),
		NAME(MPYUI),
		NAME(MPYH),
		NAME(MPYS),
		NAME(MPYHH),
		NAME(MPYHHA),
		NAME(MPYHHU),
		NAME(MPYHHAU),
		NAME(CLZ),
		NAME(CNTB),
		NAME(FSMB),
		NAME(FSMH),
		NAME(FSM),
		NAME(GBB),
		NAME(GBH),
		NAME(GB),
		NAME(AVGB),
		NAME(ABSDB),
		NAME(SUMB),
		NAME(XSBH),
		NAME(XSHW),
		NAME(XSWD),
		NAME(AND),
		NAME(ANDC),
		NAME(ANDBI),
		NAME(ANDHI),
		NAME(ANDI),
		NAME(OR),
		NAME(ORC),
		NAME(ORBI),
		NAME(ORHI),
		NAME(ORI),
		NAME(ORX),
		NAME(XOR),
		NAME(XORBI),
		NAME(XORHI),
		NAME(XORI),
		NAME(NAND),
		NAME(NOR),
		NAME(EQV),
		NAME(MPYA),
		NAME(SELB),
		NAME(SHUFB),
		NAME(SHLH),
		NAME(SHLHI),
		NAME(SHL),
		NAME(SHLI),
		NAME(SHLQBI),
		NAME(SHLQBII),
		NAME(SHLQBY),
		NAME(SHLQBYI),
		NAME(SHLQBYBI),
		NAME(ROTH),
		NAME(ROTHI),
		NAME(ROT),
		NAME(ROTI),
		NAME(ROTQBY),
		NAME(ROTQBYI),
		NAME(ROTQBYBI),
		NAME(ROTQBI),
		NAME(ROTQBII),
		NAME(ROTHM),
		NAME(ROTHMI),
		NAME(ROTM),
		NAME(ROTMI),
		NAME(ROTQMBY),
		NAME(ROTQMBYI),
		NAME(ROTQMBYBI),
		NAME(ROTQMBI),
		NAME(ROTQMBII),
		NAME(ROTMAH),
		NAME(ROTMAHI),
		NAME(ROTMA),
		NAME(ROTMAI),
		NAME(CEQB),
		NAME(CEQBI),
		NAME(CEQH),
		NAME(CEQHI),
		NAME(CEQ),
		NAME(CEQI),
		NAME(CGTB),
		NAME(CGTBI),
		NAME(CGTH),
		NAME(CGTHI),
		NAME(CGT),
		NAME(CGTI),
		NAME(CLGTB),
		NAME(CLGTBI),
		NAME(CLGTH),
		NAME(CLGTHI),
		NAME(CLGT),
		NAME(CLGTI),
		NAME(BR),
		NAME(BRA),
		NAME(BRSL),
		NAME(BRASL),
		NAME(BI),
		NAME(IRET),
		NAME(BISLED),
		NAME(BISL),
		NAME(BRNZ),
		NAME(BRZ),
		NAME(BRHNZ),
		NAME(BRHZ),
		NAME(BIZ),
		NAME(BINZ),
		NAME(BIHZ),
		NAME(BIHNZ),
		NAME(FA),
		NAME(DFA),
		NAME(FS),
		NAME(DFS),
		NAME(FM),
		NAME(DFM),
		NAME(DFMA),
		NAME(DFNMS),
		NAME(DFMS),
		NAME(DFNMA),
		NAME(FREST),
		NAME(FRSQEST),
		NAME(FI),
		NAME(CSFLT),
		NAME(CFLTS),
		NAME(CUFLT),
		NAME(CFLTU),
		NAME(FRDS),
		NAME(FESD),
		NAME(FCEQ),
		NAME(FCMEQ),
		NAME(FCGT),
		NAME(FCMGT),
		NAME(FSCRWR),
		NAME(FSCRRD),
		NAME(DFCEQ),
		NAME(DFCMEQ),
		NAME(DFCGT),
		NAME(DFCMGT),
		NAME(DFTSV),
		NAME(FMA),
		NAME(FNMS),
		NAME(FMS),
	};

	// Enable address-of operator for spu_decoder<>
	friend constexpr type operator &(type value)
	{
		return value;
	}
};

#undef NAME
