#include <rex/ppc/call.h>

Static Public Member Functions
static constexpr PPCRegister &	GetIntegerRegister (PPCContext &ctx, size_t slot) noexcept
static constexpr PPCRegister &	GetFloatRegister (PPCContext &ctx, size_t ordinal) noexcept
static constexpr PPCVRegister &	GetVectorRegister (PPCContext &ctx, size_t ordinal) noexcept
static constexpr u32	GetStackSlotAddress (const PPCContext &ctx, size_t slot) noexcept
template<size_t Bytes = sizeof(u32)>
static constexpr u64	GetIntegerArgumentValue (const PPCContext &ctx, u8 *base, size_t slot) noexcept
static f64	GetFloatArgumentValue (const PPCContext &ctx, u8 *base, const ArgPlace &arg, bool single) noexcept
template<size_t Bytes = sizeof(u32)>
static constexpr void	SetIntegerArgumentValue (PPCContext &ctx, u8 *base, size_t slot, u64 value) noexcept
static void	SetFloatArgumentValue (PPCContext &ctx, u8 *base, const ArgPlace &arg, f64 value, bool single) noexcept
static PPCVRegister	GetVectorArgumentValue (const PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
static void	SetVectorArgumentValue (PPCContext &ctx, u8 *base, const ArgPlace &arg, const PPCVRegister &value) noexcept
template<ByValueType T>
static T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<ByValueType T>
static void	SetByValueArgumentValue (PPCContext &ctx, u8 *base, const ArgPlace &arg, const T &value) noexcept
template<BigEndianType T>
static constexpr T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<MappedPtrType T>
static T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<MappedPtrType T>
static T	GetMappedPointerValue (u64 value, u8 *base) noexcept
template<VectorType T>
static T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<PlainType T>
static constexpr T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<typename T> requires std::is_pointer_v<T>
static constexpr T	GetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg) noexcept
template<typename T> requires std::is_pointer_v<T>
static constexpr T	GetPointerValue (u64 value, u8 *base) noexcept
template<typename T>
static constexpr void	SetValue (PPCContext &ctx, u8 *base, const ArgPlace &arg, T value) noexcept

Static Public Attributes
static constexpr size_t	kIntegerRegisters = 8
static constexpr size_t	kFloatRegisters = 13
static constexpr size_t	kVectorRegisters = 13

Detailed Description

Reads and writes function arguments in the guest calling convention.

Member Function Documentation

◆ GetFloatArgumentValue()

f64 rex::ppc::ArgTranslator::GetFloatArgumentValue	(	const PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg,
		bool	single )

inlinestaticnoexcept

Reads a float argument from its register or its stack slot.

Parameters

single True when the argument is a 4 byte float.

Returns: The argument widened to a double.

◆ GetFloatRegister()

constexpr PPCRegister & rex::ppc::ArgTranslator::GetFloatRegister	(	PPCContext &	ctx,
		size_t	ordinal )

inlinestaticconstexprnoexcept

Parameters

ordinal The float argument index, under kFloatRegisters.

Returns: f1 for index 0 through f13 for index 12.

◆ GetIntegerArgumentValue()

template<size_t Bytes = sizeof(u32)>

constexpr u64 rex::ppc::ArgTranslator::GetIntegerArgumentValue	(	const PPCContext &	ctx,
		u8 *	base,
		size_t	slot )

inlinestaticconstexprnoexcept

Reads an integer argument from its register or its stack slot.

Template Parameters

Bytes The argument width in bytes, 4 or 8.

Returns: The argument, zero extended.

◆ GetIntegerRegister()

constexpr PPCRegister & rex::ppc::ArgTranslator::GetIntegerRegister	(	PPCContext &	ctx,
		size_t	slot )

inlinestaticconstexprnoexcept

Returns the integer argument register for an argument image slot. The register is r3 for slot 0 through r10 for slot 7.

Parameters

slot	The slot, under kIntegerRegisters.

◆ GetMappedPointerValue()

template<MappedPtrType T>

T rex::ppc::ArgTranslator::GetMappedPointerValue	(	u64	value,
		u8 *	base )

inlinestaticnoexcept

Converts the value of an integer register to a mapped pointer.

Parameters

value Register value whose low 32 bits are the guest address.

Returns: The mapped pointer, null when the address is 0.

◆ GetPointerValue()

template<typename T>
requires std::is_pointer_v<T>

constexpr T rex::ppc::ArgTranslator::GetPointerValue	(	u64	value,
		u8 *	base )

inlinestaticconstexprnoexcept

Converts the value of an integer register to a host pointer.

Parameters

value Register value whose low 32 bits are the guest address.

Returns: The host pointer, null when the address is 0.

◆ GetStackSlotAddress()

constexpr u32 rex::ppc::ArgTranslator::GetStackSlotAddress	(	const PPCContext &	ctx,
		size_t	slot )

inlinestaticconstexprnoexcept

Returns the guest address of an argument image slot past the integer registers.

Parameters

ctx	The register file at the callee's entry.
slot	The slot, at least kIntegerRegisters.

◆ GetValue() [1/5]

template<typename T>
requires std::is_pointer_v<T>

constexpr T rex::ppc::ArgTranslator::GetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticconstexprnoexcept

Reads a pointer argument.

Returns: The host pointer, null when the argument is 0.

◆ GetValue() [2/5]

template<PlainType T>

constexpr T rex::ppc::ArgTranslator::GetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticconstexprnoexcept

Reads an integer or float argument.

◆ GetValue() [3/5]

template<MappedPtrType T>

T rex::ppc::ArgTranslator::GetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticnoexcept

Reads a mapped pointer argument.

Returns: The mapped pointer, null when the argument is 0.

◆ GetValue() [4/5]

template<BigEndianType T>

constexpr T rex::ppc::ArgTranslator::GetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticconstexprnoexcept

Reads a big endian argument.

◆ GetValue() [5/5]

template<ByValueType T>

T rex::ppc::ArgTranslator::GetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticnoexcept

Reads a structure argument from its registers and stack slots.

◆ GetVectorArgumentValue()

PPCVRegister rex::ppc::ArgTranslator::GetVectorArgumentValue	(	const PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg )

inlinestaticnoexcept

Reads a vector argument from its register or its 16 byte stack slot pair.

Returns: The vector. Its stack image is the byte reversed register.

◆ GetVectorRegister()

constexpr PPCVRegister & rex::ppc::ArgTranslator::GetVectorRegister	(	PPCContext &	ctx,
		size_t	ordinal )

inlinestaticconstexprnoexcept

Parameters

ordinal The vector argument index, under kVectorRegisters.

Returns: v1 for index 0 through v13 for index 12.

◆ SetByValueArgumentValue()

template<ByValueType T>

void rex::ppc::ArgTranslator::SetByValueArgumentValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg,
		const T &	value )

inlinestaticnoexcept

Writes a structure argument to its registers and stack slots.

◆ SetFloatArgumentValue()

void rex::ppc::ArgTranslator::SetFloatArgumentValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg,
		f64	value,
		bool	single )

inlinestaticnoexcept

Writes a float argument to its register, and to its stack slot when its slot is past r10.

Parameters

single True when the argument is a 4 byte float.

◆ SetIntegerArgumentValue()

template<size_t Bytes = sizeof(u32)>

constexpr void rex::ppc::ArgTranslator::SetIntegerArgumentValue	(	PPCContext &	ctx,
		u8 *	base,
		size_t	slot,
		u64	value )

inlinestaticconstexprnoexcept

Writes an integer argument to its register or its stack slot.

Template Parameters

Bytes The argument width in bytes, 4 or 8.

Parameters

value Value to write. A 4 byte value goes to the low word of a stack slot.

◆ SetValue()

template<typename T>

constexpr void rex::ppc::ArgTranslator::SetValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg,
		T	value )

inlinestaticconstexprnoexcept

Writes an argument of any supported type.

◆ SetVectorArgumentValue()

void rex::ppc::ArgTranslator::SetVectorArgumentValue	(	PPCContext &	ctx,
		u8 *	base,
		const ArgPlace &	arg,
		const PPCVRegister &	value )

inlinestaticnoexcept

Writes a vector argument to its register or its 16 byte stack slot pair.

Parameters

value The vector, stored byte reversed in the stack image.

Member Data Documentation

◆ kFloatRegisters

size_t rex::ppc::ArgTranslator::kFloatRegisters = 13

staticconstexpr

Number of float argument registers, f1 to f13.

◆ kIntegerRegisters

size_t rex::ppc::ArgTranslator::kIntegerRegisters = 8

staticconstexpr

Number of integer argument registers, r3 to r10.

◆ kVectorRegisters

size_t rex::ppc::ArgTranslator::kVectorRegisters = 13

staticconstexpr

Number of vector argument registers, v1 to v13.

The documentation for this struct was generated from the following file:

rex/ppc/call.h

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Function Documentation

◆ GetFloatArgumentValue()

◆ GetFloatRegister()

◆ GetIntegerArgumentValue()

◆ GetIntegerRegister()

◆ GetMappedPointerValue()

◆ GetPointerValue()

◆ GetStackSlotAddress()

◆ GetValue() [1/5]

◆ GetValue() [2/5]

◆ GetValue() [3/5]

◆ GetValue() [4/5]

◆ GetValue() [5/5]

◆ GetVectorArgumentValue()

◆ GetVectorRegister()

◆ SetByValueArgumentValue()

◆ SetFloatArgumentValue()

◆ SetIntegerArgumentValue()

◆ SetValue()

◆ SetVectorArgumentValue()

Member Data Documentation

◆ kFloatRegisters

◆ kIntegerRegisters

◆ kVectorRegisters