pica: Add pica_types module and move float24 definition.
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				@ -33,6 +33,7 @@ set(HEADERS
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            command_processor.h
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            gpu_debugger.h
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            pica.h
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            pica_types.h
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            primitive_assembly.h
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            rasterizer.h
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            rasterizer_interface.h
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@ -16,6 +16,8 @@
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#include "common/vector_math.h"
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#include "common/logging/log.h"
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#include "pica_types.h"
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namespace Pica {
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// Returns index corresponding to the Regs member labeled by field_name
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@ -1026,118 +1028,6 @@ static_assert(sizeof(Regs::ShaderConfig) == 0x30 * sizeof(u32), "ShaderConfig st
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static_assert(sizeof(Regs) <= 0x300 * sizeof(u32), "Register set structure larger than it should be");
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static_assert(sizeof(Regs) >= 0x300 * sizeof(u32), "Register set structure smaller than it should be");
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struct float24 {
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    static float24 FromFloat32(float val) {
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        float24 ret;
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        ret.value = val;
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        return ret;
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    }
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    // 16 bit mantissa, 7 bit exponent, 1 bit sign
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    // TODO: No idea if this works as intended
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    static float24 FromRawFloat24(u32 hex) {
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        float24 ret;
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        if ((hex & 0xFFFFFF) == 0) {
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            ret.value = 0;
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        } else {
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            u32 mantissa = hex & 0xFFFF;
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            u32 exponent = (hex >> 16) & 0x7F;
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            u32 sign = hex >> 23;
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            ret.value = std::pow(2.0f, (float)exponent-63.0f) * (1.0f + mantissa * std::pow(2.0f, -16.f));
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            if (sign)
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                ret.value = -ret.value;
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        }
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        return ret;
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    }
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    static float24 Zero() {
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        return FromFloat32(0.f);
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    }
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    // Not recommended for anything but logging
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    float ToFloat32() const {
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        return value;
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    }
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    float24 operator * (const float24& flt) const {
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        if ((this->value == 0.f && !std::isnan(flt.value)) ||
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            (flt.value == 0.f && !std::isnan(this->value)))
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            // PICA gives 0 instead of NaN when multiplying by inf
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            return Zero();
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        return float24::FromFloat32(ToFloat32() * flt.ToFloat32());
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    }
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    float24 operator / (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() / flt.ToFloat32());
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    }
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    float24 operator + (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() + flt.ToFloat32());
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    }
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    float24 operator - (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() - flt.ToFloat32());
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    }
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    float24& operator *= (const float24& flt) {
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        if ((this->value == 0.f && !std::isnan(flt.value)) ||
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            (flt.value == 0.f && !std::isnan(this->value)))
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            // PICA gives 0 instead of NaN when multiplying by inf
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            *this = Zero();
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        else value *= flt.ToFloat32();
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        return *this;
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    }
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    float24& operator /= (const float24& flt) {
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        value /= flt.ToFloat32();
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        return *this;
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    }
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    float24& operator += (const float24& flt) {
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        value += flt.ToFloat32();
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        return *this;
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    }
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    float24& operator -= (const float24& flt) {
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        value -= flt.ToFloat32();
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        return *this;
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    }
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    float24 operator - () const {
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        return float24::FromFloat32(-ToFloat32());
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    }
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    bool operator < (const float24& flt) const {
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        return ToFloat32() < flt.ToFloat32();
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    }
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    bool operator > (const float24& flt) const {
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        return ToFloat32() > flt.ToFloat32();
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    }
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    bool operator >= (const float24& flt) const {
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        return ToFloat32() >= flt.ToFloat32();
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    }
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    bool operator <= (const float24& flt) const {
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        return ToFloat32() <= flt.ToFloat32();
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    }
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    bool operator == (const float24& flt) const {
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        return ToFloat32() == flt.ToFloat32();
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    }
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    bool operator != (const float24& flt) const {
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        return ToFloat32() != flt.ToFloat32();
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    }
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private:
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    // Stored as a regular float, merely for convenience
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    // TODO: Perform proper arithmetic on this!
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    float value;
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};
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static_assert(sizeof(float24) == sizeof(float), "Shader JIT assumes float24 is implemented as a 32-bit float");
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/// Struct used to describe current Pica state
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struct State {
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    /// Pica registers
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										124
									
								
								src/video_core/pica_types.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										124
									
								
								src/video_core/pica_types.h
									
									
									
									
									
										Normal file
									
								
							@ -0,0 +1,124 @@
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// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include "common/common_types.h"
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namespace Pica {
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struct float24 {
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    static float24 FromFloat32(float val) {
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        float24 ret;
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        ret.value = val;
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        return ret;
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    }
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    // 16 bit mantissa, 7 bit exponent, 1 bit sign
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    // TODO: No idea if this works as intended
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    static float24 FromRawFloat24(u32 hex) {
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        float24 ret;
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        if ((hex & 0xFFFFFF) == 0) {
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            ret.value = 0;
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        } else {
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            u32 mantissa = hex & 0xFFFF;
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            u32 exponent = (hex >> 16) & 0x7F;
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            u32 sign = hex >> 23;
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            ret.value = std::pow(2.0f, (float)exponent-63.0f) * (1.0f + mantissa * std::pow(2.0f, -16.f));
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            if (sign)
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                ret.value = -ret.value;
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        }
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        return ret;
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    }
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    static float24 Zero() {
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        return FromFloat32(0.f);
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    }
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    // Not recommended for anything but logging
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    float ToFloat32() const {
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        return value;
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    }
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    float24 operator * (const float24& flt) const {
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        if ((this->value == 0.f && !std::isnan(flt.value)) ||
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            (flt.value == 0.f && !std::isnan(this->value)))
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            // PICA gives 0 instead of NaN when multiplying by inf
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            return Zero();
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        return float24::FromFloat32(ToFloat32() * flt.ToFloat32());
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    }
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    float24 operator / (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() / flt.ToFloat32());
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    }
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    float24 operator + (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() + flt.ToFloat32());
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    }
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    float24 operator - (const float24& flt) const {
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        return float24::FromFloat32(ToFloat32() - flt.ToFloat32());
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    }
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    float24& operator *= (const float24& flt) {
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        if ((this->value == 0.f && !std::isnan(flt.value)) ||
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            (flt.value == 0.f && !std::isnan(this->value)))
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            // PICA gives 0 instead of NaN when multiplying by inf
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            *this = Zero();
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        else value *= flt.ToFloat32();
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        return *this;
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    }
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    float24& operator /= (const float24& flt) {
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        value /= flt.ToFloat32();
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        return *this;
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    }
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    float24& operator += (const float24& flt) {
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        value += flt.ToFloat32();
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        return *this;
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    }
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    float24& operator -= (const float24& flt) {
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        value -= flt.ToFloat32();
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        return *this;
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    }
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    float24 operator - () const {
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        return float24::FromFloat32(-ToFloat32());
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    }
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    bool operator < (const float24& flt) const {
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        return ToFloat32() < flt.ToFloat32();
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    }
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    bool operator > (const float24& flt) const {
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        return ToFloat32() > flt.ToFloat32();
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    }
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    bool operator >= (const float24& flt) const {
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        return ToFloat32() >= flt.ToFloat32();
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    }
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    bool operator <= (const float24& flt) const {
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        return ToFloat32() <= flt.ToFloat32();
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    }
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    bool operator == (const float24& flt) const {
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        return ToFloat32() == flt.ToFloat32();
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    }
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    bool operator != (const float24& flt) const {
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        return ToFloat32() != flt.ToFloat32();
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    }
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private:
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    // Stored as a regular float, merely for convenience
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    // TODO: Perform proper arithmetic on this!
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    float value;
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};
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static_assert(sizeof(float24) == sizeof(float), "Shader JIT assumes float24 is implemented as a 32-bit float");
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} // namespace Pica
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