#ifndef PPC_CONTEXT_H_INCLUDED
#define PPC_CONTEXT_H_INCLUDED

#ifndef PPC_CONFIG_H_INCLUDED
#error "ppc_config.h must be included before ppc_context.h"
#endif

#include <cmath>
#include <csetjmp>
#include <cstdint>
#include <cstdlib>
#include <cstring>

#include <intrin.h>
#include <x86intrin.h>

#define PPC_JOIN(x, y) x##y
#define PPC_XSTRINGIFY(x) #x
#define PPC_STRINGIFY(x) PPC_XSTRINGIFY(x)
#define PPC_FUNC(x) void x(PPCContext& __restrict ctx, uint8_t* base)
#define PPC_FUNC_IMPL(x) extern "C" PPC_FUNC(x)
#define PPC_EXTERN_FUNC(x) extern PPC_FUNC(x)
#define PPC_WEAK_FUNC(x) __attribute__((weak,noinline)) PPC_FUNC(x)

#define PPC_FUNC_PROLOGUE() __builtin_assume(((size_t)base & 0xFFFFFFFF) == 0)

#ifndef PPC_LOAD_U8
#define PPC_LOAD_U8(x) *(volatile uint8_t*)(base + (x))
#endif

#ifndef PPC_LOAD_U16
#define PPC_LOAD_U16(x) __builtin_bswap16(*(volatile uint16_t*)(base + (x)))
#endif

#ifndef PPC_LOAD_U32
#define PPC_LOAD_U32(x) __builtin_bswap32(*(volatile uint32_t*)(base + (x)))
#endif

#ifndef PPC_LOAD_U64
#define PPC_LOAD_U64(x) __builtin_bswap64(*(volatile uint64_t*)(base + (x)))
#endif

// TODO: Implement.
// These are currently unused. However, MMIO loads could possibly be handled statically with some profiling and a fallback.
// The fallback would be a runtime exception handler which will intercept reads from MMIO regions 
// and log the PC for compiling to static code later.
#ifndef PPC_MM_LOAD_U8
#define PPC_MM_LOAD_U8(x)  PPC_LOAD_U8 (x)
#endif

#ifndef PPC_MM_LOAD_U16
#define PPC_MM_LOAD_U16(x) PPC_LOAD_U16(x)
#endif

#ifndef PPC_MM_LOAD_U32
#define PPC_MM_LOAD_U32(x) PPC_LOAD_U32(x)
#endif

#ifndef PPC_MM_LOAD_U64
#define PPC_MM_LOAD_U64(x) PPC_LOAD_U64(x)
#endif

#ifndef PPC_STORE_U8
#define PPC_STORE_U8(x, y) *(volatile uint8_t*)(base + (x)) = (y)
#endif

#ifndef PPC_STORE_U16
#define PPC_STORE_U16(x, y) *(volatile uint16_t*)(base + (x)) = __builtin_bswap16(y)
#endif

#ifndef PPC_STORE_U32
#define PPC_STORE_U32(x, y) *(volatile uint32_t*)(base + (x)) = __builtin_bswap32(y)
#endif

#ifndef PPC_STORE_U64
#define PPC_STORE_U64(x, y) *(volatile uint64_t*)(base + (x)) = __builtin_bswap64(y)
#endif

// MMIO Store handling is completely reliant on being preeceded by eieio.
// TODO: Verify if that's always the case.
#ifndef PPC_MM_STORE_U8
#define PPC_MM_STORE_U8(x, y)   PPC_STORE_U8 (x, y)
#endif

#ifndef PPC_MM_STORE_U16
#define PPC_MM_STORE_U16(x, y)  PPC_STORE_U16(x, y)
#endif

#ifndef PPC_MM_STORE_U32
#define PPC_MM_STORE_U32(x, y)  PPC_STORE_U32(x, y)
#endif

#ifndef PPC_MM_STORE_U64
#define PPC_MM_STORE_U64(x, y)  PPC_STORE_U64(x, y)
#endif

#ifndef PPC_CALL_FUNC
#define PPC_CALL_FUNC(x) x(ctx, base)
#endif

#ifndef PPC_CALL_INDIRECT_FUNC
#define PPC_CALL_INDIRECT_FUNC(x) (*(PPCFunc**)(ctx.fn + uint64_t(x) * 2))(ctx, base)
#endif

typedef void PPCFunc(struct PPCContext& __restrict__ ctx, uint8_t* base);

struct PPCFuncMapping
{
    size_t guest;
    PPCFunc* host;
};

extern PPCFuncMapping PPCFuncMappings[];

struct PPCRegister
{
    union
    {
        int8_t s8;
        uint8_t u8;
        int16_t s16;
        uint16_t u16;
        int32_t s32;
        uint32_t u32;
        int64_t s64;
        uint64_t u64;
        float f32;
        double f64;
    };
};

struct PPCXERRegister
{
    uint8_t so;
    uint8_t ov;
    uint8_t ca;
};

struct PPCCRRegister
{
    uint8_t lt;
    uint8_t gt;
    uint8_t eq;
    union
    {
        uint8_t so;
        uint8_t un;
    };

    template<typename T>
    inline void compare(T left, T right, const PPCXERRegister& xer) noexcept
    {
        lt = left < right;
        gt = left > right;
        eq = left == right;
        so = xer.so;
    }

    inline void compare(double left, double right) noexcept
    {
        un = __builtin_isnan(left) || __builtin_isnan(right);
        lt = !un && (left < right);
        gt = !un && (left > right);
        eq = !un && (left == right);
    }

    inline void setFromMask(__m128 mask, int imm) noexcept
    {
        int m = _mm_movemask_ps(mask);
        lt = m == imm; // all equal
        gt = 0;
        eq = m == 0; // none equal
        so = 0;
    }

    inline void setFromMask(__m128i mask, int imm) noexcept
    {
        int m = _mm_movemask_epi8(mask);
        lt = m == imm; // all equal
        gt = 0;
        eq = m == 0; // none equal
        so = 0;
    }
};

struct alignas(0x10) PPCVRegister
{
    union
    {
        int8_t s8[16];
        uint8_t u8[16];
        int16_t s16[8];
        uint16_t u16[8];
        int32_t s32[4];
        uint32_t u32[4];
        int64_t s64[2];
        uint64_t u64[2];
        float f32[4];
        double f64[2];
    };
};

#define PPC_ROUND_NEAREST 0x00
#define PPC_ROUND_TOWARD_ZERO 0x01
#define PPC_ROUND_UP 0x02
#define PPC_ROUND_DOWN 0x03
#define PPC_ROUND_MASK 0x03

struct PPCFPSCRRegister
{
    uint32_t csr;

    static constexpr size_t GuestToHost[] = { _MM_ROUND_NEAREST, _MM_ROUND_TOWARD_ZERO, _MM_ROUND_UP, _MM_ROUND_DOWN };
    static constexpr size_t HostToGuest[] = { PPC_ROUND_NEAREST, PPC_ROUND_DOWN, PPC_ROUND_UP, PPC_ROUND_TOWARD_ZERO };

    inline uint32_t loadFromHost() noexcept
    {
        csr = _mm_getcsr();
        return HostToGuest[(csr & _MM_ROUND_MASK) >> 13];
    }
        
    inline void storeFromGuest(uint32_t value) noexcept
    {
        csr &= ~_MM_ROUND_MASK;
        csr |= GuestToHost[value & PPC_ROUND_MASK];
        _mm_setcsr(csr);
    }

    static constexpr size_t FlushMask = _MM_FLUSH_ZERO_MASK | _MM_DENORMALS_ZERO_MASK;

    inline void enableFlushModeUnconditional() noexcept
    {
        csr |= FlushMask;
        _mm_setcsr(csr);
    }

    inline void disableFlushModeUnconditional() noexcept
    {
        csr &= ~FlushMask;
        _mm_setcsr(csr);
    }

    inline void enableFlushMode() noexcept
    {
        if ((csr & FlushMask) != FlushMask) [[unlikely]]
        {
            csr |= FlushMask;
            _mm_setcsr(csr);
        }
    }

    inline void disableFlushMode() noexcept
    {
        if ((csr & FlushMask) != 0) [[unlikely]]
        {
            csr &= ~FlushMask;
            _mm_setcsr(csr);
        }
    }
};

struct PPCContext
{
    uint8_t* fn;

#ifndef PPC_CONFIG_SKIP_LR
    uint64_t lr;
#endif
#ifndef PPC_CONFIG_CTR_AS_LOCAL
    PPCRegister ctr;
#endif
#ifndef PPC_CONFIG_XER_AS_LOCAL
    PPCXERRegister xer;
#endif
#ifndef PPC_CONFIG_RESERVED_AS_LOCAL
    PPCRegister reserved;
#endif
#ifndef PPC_CONFIG_SKIP_MSR
    uint32_t msr = 0x200A000;
#endif

#ifndef PPC_CONFIG_CR_AS_LOCAL
    PPCCRRegister cr0;
    PPCCRRegister cr1;
    PPCCRRegister cr2;
    PPCCRRegister cr3;
    PPCCRRegister cr4;
    PPCCRRegister cr5;
    PPCCRRegister cr6;
    PPCCRRegister cr7;
#endif

#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
    PPCRegister r0;
#endif
    PPCRegister r1;
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
    PPCRegister r2;
#endif
    PPCRegister r3;
    PPCRegister r4;
    PPCRegister r5;
    PPCRegister r6;
    PPCRegister r7;
    PPCRegister r8;
    PPCRegister r9;
    PPCRegister r10;
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
    PPCRegister r11;
    PPCRegister r12;
#endif
    PPCRegister r13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
    PPCRegister r14;
    PPCRegister r15;
    PPCRegister r16;
    PPCRegister r17;
    PPCRegister r18;
    PPCRegister r19;
    PPCRegister r20;
    PPCRegister r21;
    PPCRegister r22;
    PPCRegister r23;
    PPCRegister r24;
    PPCRegister r25;
    PPCRegister r26;
    PPCRegister r27;
    PPCRegister r28;
    PPCRegister r29;
    PPCRegister r30;
    PPCRegister r31;
#endif

    PPCFPSCRRegister fpscr;

#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
    PPCRegister f0;
#endif
    PPCRegister f1;
    PPCRegister f2;
    PPCRegister f3;
    PPCRegister f4;
    PPCRegister f5;
    PPCRegister f6;
    PPCRegister f7;
    PPCRegister f8;
    PPCRegister f9;
    PPCRegister f10;
    PPCRegister f11;
    PPCRegister f12;
    PPCRegister f13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
    PPCRegister f14;
    PPCRegister f15;
    PPCRegister f16;
    PPCRegister f17;
    PPCRegister f18;
    PPCRegister f19;
    PPCRegister f20;
    PPCRegister f21;
    PPCRegister f22;
    PPCRegister f23;
    PPCRegister f24;
    PPCRegister f25;
    PPCRegister f26;
    PPCRegister f27;
    PPCRegister f28;
    PPCRegister f29;
    PPCRegister f30;
    PPCRegister f31;
#endif

    PPCVRegister v0;
    PPCVRegister v1;
    PPCVRegister v2;
    PPCVRegister v3;
    PPCVRegister v4;
    PPCVRegister v5;
    PPCVRegister v6;
    PPCVRegister v7;
    PPCVRegister v8;
    PPCVRegister v9;
    PPCVRegister v10;
    PPCVRegister v11;
    PPCVRegister v12;
    PPCVRegister v13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
    PPCVRegister v14;
    PPCVRegister v15;
    PPCVRegister v16;
    PPCVRegister v17;
    PPCVRegister v18;
    PPCVRegister v19;
    PPCVRegister v20;
    PPCVRegister v21;
    PPCVRegister v22;
    PPCVRegister v23;
    PPCVRegister v24;
    PPCVRegister v25;
    PPCVRegister v26;
    PPCVRegister v27;
    PPCVRegister v28;
    PPCVRegister v29;
    PPCVRegister v30;
    PPCVRegister v31;
#endif
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
    PPCVRegister v32;
    PPCVRegister v33;
    PPCVRegister v34;
    PPCVRegister v35;
    PPCVRegister v36;
    PPCVRegister v37;
    PPCVRegister v38;
    PPCVRegister v39;
    PPCVRegister v40;
    PPCVRegister v41;
    PPCVRegister v42;
    PPCVRegister v43;
    PPCVRegister v44;
    PPCVRegister v45;
    PPCVRegister v46;
    PPCVRegister v47;
    PPCVRegister v48;
    PPCVRegister v49;
    PPCVRegister v50;
    PPCVRegister v51;
    PPCVRegister v52;
    PPCVRegister v53;
    PPCVRegister v54;
    PPCVRegister v55;
    PPCVRegister v56;
    PPCVRegister v57;
    PPCVRegister v58;
    PPCVRegister v59;
    PPCVRegister v60;
    PPCVRegister v61;
    PPCVRegister v62;
    PPCVRegister v63;
#endif
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
    PPCVRegister v64;
    PPCVRegister v65;
    PPCVRegister v66;
    PPCVRegister v67;
    PPCVRegister v68;
    PPCVRegister v69;
    PPCVRegister v70;
    PPCVRegister v71;
    PPCVRegister v72;
    PPCVRegister v73;
    PPCVRegister v74;
    PPCVRegister v75;
    PPCVRegister v76;
    PPCVRegister v77;
    PPCVRegister v78;
    PPCVRegister v79;
    PPCVRegister v80;
    PPCVRegister v81;
    PPCVRegister v82;
    PPCVRegister v83;
    PPCVRegister v84;
    PPCVRegister v85;
    PPCVRegister v86;
    PPCVRegister v87;
    PPCVRegister v88;
    PPCVRegister v89;
    PPCVRegister v90;
    PPCVRegister v91;
    PPCVRegister v92;
    PPCVRegister v93;
    PPCVRegister v94;
    PPCVRegister v95;
    PPCVRegister v96;
    PPCVRegister v97;
    PPCVRegister v98;
    PPCVRegister v99;
    PPCVRegister v100;
    PPCVRegister v101;
    PPCVRegister v102;
    PPCVRegister v103;
    PPCVRegister v104;
    PPCVRegister v105;
    PPCVRegister v106;
    PPCVRegister v107;
    PPCVRegister v108;
    PPCVRegister v109;
    PPCVRegister v110;
    PPCVRegister v111;
    PPCVRegister v112;
    PPCVRegister v113;
    PPCVRegister v114;
    PPCVRegister v115;
    PPCVRegister v116;
    PPCVRegister v117;
    PPCVRegister v118;
    PPCVRegister v119;
    PPCVRegister v120;
    PPCVRegister v121;
    PPCVRegister v122;
    PPCVRegister v123;
    PPCVRegister v124;
    PPCVRegister v125;
    PPCVRegister v126;
    PPCVRegister v127;
#endif
};

inline uint8_t VectorMaskL[] =
{
    0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00,
    0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01,
    0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02,
    0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03,
    0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D, 0x0C,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E, 0x0D,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F, 0x0E,
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0F,
};

inline uint8_t VectorMaskR[] =
{
    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
    0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF,
    0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF, 0xFF,
    0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF, 0xFF,
    0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0xFF,
};

inline uint8_t VectorShiftTableL[] =
{
    0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00,
    0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01,
    0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02,
    0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03,
    0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04,
    0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05,
    0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06,
    0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07,
    0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08,
    0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09,
    0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A,
    0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B,
    0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C,
    0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D,
    0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E,
    0x1E, 0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F,
};

inline uint8_t VectorShiftTableR[] =
{
    0x1F, 0x1E, 0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10,
    0x1E, 0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F,
    0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E,
    0x1C, 0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D,
    0x1B, 0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C,
    0x1A, 0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B,
    0x19, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A,
    0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09,
    0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08,
    0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07,
    0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06,
    0x14, 0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05,
    0x13, 0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04,
    0x12, 0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03,
    0x11, 0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02,
    0x10, 0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01,
};

inline __m128i _mm_adds_epu32(__m128i a, __m128i b) 
{
    return _mm_add_epi32(a, _mm_min_epu32(_mm_xor_si128(a, _mm_cmpeq_epi32(a, a)), b));
}

inline __m128i _mm_avg_epi8(__m128i a, __m128i b)
{
    __m128i c = _mm_set1_epi8(char(128));
    return _mm_xor_si128(c, _mm_avg_epu8(_mm_xor_si128(c, a), _mm_xor_si128(c, b)));
}

inline __m128i _mm_avg_epi16(__m128i a, __m128i b)
{
    __m128i c = _mm_set1_epi16(short(32768));
    return _mm_xor_si128(c, _mm_avg_epu16(_mm_xor_si128(c, a), _mm_xor_si128(c, b)));
}

inline __m128 _mm_cvtepu32_ps_(__m128i src1)
{
    __m128i xmm1 = _mm_add_epi32(src1, _mm_set1_epi32(127));
    __m128i xmm0 = _mm_slli_epi32(src1, 31 - 8);
    xmm0 = _mm_srli_epi32(xmm0, 31);
    xmm0 = _mm_add_epi32(xmm0, xmm1);
    xmm0 = _mm_srai_epi32(xmm0, 8);
    xmm0 = _mm_add_epi32(xmm0, _mm_set1_epi32(0x4F800000));
    __m128 xmm2 = _mm_cvtepi32_ps(src1);
    return _mm_blendv_ps(xmm2, _mm_castsi128_ps(xmm0), _mm_castsi128_ps(src1));
}

inline __m128i _mm_perm_epi8_(__m128i a, __m128i b, __m128i c)
{
    __m128i d = _mm_set1_epi8(0xF);
    __m128i e = _mm_sub_epi8(d, _mm_and_si128(c, d));
    return _mm_blendv_epi8(_mm_shuffle_epi8(a, e), _mm_shuffle_epi8(b, e), _mm_slli_epi32(c, 3));
}

inline __m128i _mm_cmpgt_epu8(__m128i a, __m128i b)
{
    __m128i c = _mm_set1_epi8(char(128));
    return _mm_cmpgt_epi8(_mm_xor_si128(a, c), _mm_xor_si128(b, c));
}

inline __m128i _mm_cmpgt_epu16(__m128i a, __m128i b)
{
    __m128i c = _mm_set1_epi16(short(32768));
    return _mm_cmpgt_epi16(_mm_xor_si128(a, c), _mm_xor_si128(b, c));
}

inline __m128i _mm_vctsxs(__m128 src1)
{
    __m128 xmm2 = _mm_cmpunord_ps(src1, src1);
    __m128i xmm0 = _mm_cvttps_epi32(src1);
    __m128i xmm1 = _mm_cmpeq_epi32(xmm0, _mm_set1_epi32(INT_MIN));
    xmm1 = _mm_andnot_si128(_mm_castps_si128(src1), xmm1);
    __m128 dest = _mm_blendv_ps(_mm_castsi128_ps(xmm0), _mm_castsi128_ps(_mm_set1_epi32(INT_MAX)), _mm_castsi128_ps(xmm1));
    return _mm_andnot_si128(_mm_castps_si128(xmm2), _mm_castps_si128(dest));
}

inline __m128i _mm_vctuxs(__m128 src1)
{
    __m128 xmm0 = _mm_max_ps(src1, _mm_set1_epi32(0));
    __m128 xmm1 = _mm_cmpge_ps(xmm0, _mm_set1_ps((float)0x80000000));
    __m128 xmm2 = _mm_sub_ps(xmm0, _mm_set1_ps((float)0x80000000));
    xmm0 = _mm_blendv_ps(xmm0, xmm2, xmm1);
    __m128i dest = _mm_cvttps_epi32(xmm0);
    xmm0 = _mm_cmpeq_epi32(dest, _mm_set1_epi32(INT_MIN));
    xmm1 = _mm_and_si128(xmm1, _mm_set1_epi32(INT_MIN));
    dest = _mm_add_epi32(dest, xmm1);
    return _mm_or_si128(dest, xmm0);
}

inline __m128i _mm_vsr(__m128i a, __m128i b)
{
    b = _mm_srli_epi64(_mm_slli_epi64(b, 61), 61);
    return _mm_castps_si128(_mm_insert_ps(_mm_castsi128_ps(_mm_srl_epi64(a, b)), _mm_castsi128_ps(_mm_srl_epi64(_mm_srli_si128(a, 4), b)), 0x10));
}

#endif