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https://github.com/libretro/beetle-pce-fast-libretro.git
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Get rid of unused masmem.h
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twinaphex
parent
7da5ca86cc
commit
808a30b3e8
@ -1,209 +0,0 @@
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#ifndef __MDFN_PSX_MASMEM_H
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#define __MDFN_PSX_MASMEM_H
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// TODO, WIP (big-endian stores and loads not fully supported yet)
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#ifdef MSB_FIRST
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#define MAS_NATIVE_IS_BIGENDIAN 1
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#else
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#define MAS_NATIVE_IS_BIGENDIAN 0
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#endif
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static INLINE uint16 LoadU16_RBO(const uint16 *a)
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{
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#ifdef ARCH_POWERPC
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uint16 tmp;
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__asm__ ("lhbrx %0, %y1" : "=r"(tmp) : "Z"(*a));
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return(tmp);
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#else
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uint16 tmp = *a;
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return((tmp << 8) | (tmp >> 8));
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#endif
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}
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static INLINE uint32 LoadU32_RBO(const uint32 *a)
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{
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#ifdef ARCH_POWERPC
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uint32 tmp;
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__asm__ ("lwbrx %0, %y1" : "=r"(tmp) : "Z"(*a));
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return(tmp);
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#else
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uint32 tmp = *a;
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return((tmp << 24) | ((tmp & 0xFF00) << 8) | ((tmp >> 8) & 0xFF00) | (tmp >> 24));
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#endif
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}
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static INLINE void StoreU16_RBO(uint16 *a, const uint16 v)
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{
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#ifdef ARCH_POWERPC
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__asm__ ("sthbrx %0, %y1" : : "r"(v), "Z"(*a));
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#else
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uint16 tmp = (v << 8) | (v >> 8);
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*a = tmp;
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#endif
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}
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static INLINE void StoreU32_RBO(uint32 *a, const uint32 v)
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{
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#ifdef ARCH_POWERPC
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__asm__ ("stwbrx %0, %y1" : : "r"(v), "Z"(*a));
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#else
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uint32 tmp = (v << 24) | ((v & 0xFF00) << 8) | ((v >> 8) & 0xFF00) | (v >> 24);
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*a = tmp;
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#endif
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}
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static INLINE uint16 LoadU16_LE(const uint16 *a)
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{
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#ifdef MSB_FIRST
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return LoadU16_RBO(a);
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#else
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return *a;
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#endif
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}
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static INLINE uint32 LoadU32_LE(const uint32 *a)
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{
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#ifdef MSB_FIRST
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return LoadU32_RBO(a);
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#else
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return *a;
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#endif
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}
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static INLINE void StoreU16_LE(uint16 *a, const uint16 v)
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{
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#ifdef MSB_FIRST
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StoreU16_RBO(a, v);
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#else
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*a = v;
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#endif
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}
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static INLINE void StoreU32_LE(uint32 *a, const uint32 v)
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{
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#ifdef MSB_FIRST
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StoreU32_RBO(a, v);
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#else
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*a = v;
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#endif
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}
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// address must not be >= size specified by template parameter, and address must be a multiple of the byte-size of the
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// unit(1,2,4) being read(except for Read/WriteU24, which only needs to be byte-aligned).
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//
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// max_unit_type should be uint16 or uint32
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//
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// pre_padding and post_padding are specified in units of sizeof(max_unit_type).
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//
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template<unsigned size, typename max_unit_type, bool big_endian> //, unsigned pre_padding_count, unsigned post_padding_count>
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struct MultiAccessSizeMem
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{
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//max_unit_type pre_padding[pre_padding_count ? pre_padding_count : 1];
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union
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{
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uint8 data8[size];
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uint16 data16[size / sizeof(uint16)];
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uint32 data32[size / sizeof(uint32)];
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};
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//max_unit_type post_padding[post_padding_count ? post_padding_count : 1];
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INLINE uint8 ReadU8(uint32 address)
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{
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return data8[address];
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}
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INLINE uint16 ReadU16(uint32 address)
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{
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if(MAS_NATIVE_IS_BIGENDIAN == big_endian)
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return *(uint16*)(((uint8*)data16) + address);
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else
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return LoadU16_RBO((uint16*)(((uint8*)data16) + address));
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}
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INLINE uint32 ReadU32(uint32 address)
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{
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if(MAS_NATIVE_IS_BIGENDIAN == big_endian)
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return *(uint32*)(((uint8*)data32) + address);
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else
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return LoadU32_RBO((uint32*)(((uint8*)data32) + address));
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}
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INLINE uint32 ReadU24(uint32 address)
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{
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uint32 ret;
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if(!big_endian)
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{
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ret = ReadU8(address) | (ReadU8(address + 1) << 8) | (ReadU8(address + 2) << 16);
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}
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return(ret);
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}
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INLINE void WriteU8(uint32 address, uint8 value)
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{
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data8[address] = value;
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}
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INLINE void WriteU16(uint32 address, uint16 value)
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{
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if(MAS_NATIVE_IS_BIGENDIAN == big_endian)
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*(uint16*)(((uint8*)data16) + address) = value;
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else
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StoreU16_RBO((uint16*)(((uint8*)data16) + address), value);
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}
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INLINE void WriteU32(uint32 address, uint32 value)
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{
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if(MAS_NATIVE_IS_BIGENDIAN == big_endian)
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*(uint32*)(((uint8*)data32) + address) = value;
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else
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StoreU32_RBO((uint32*)(((uint8*)data32) + address), value);
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}
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INLINE void WriteU24(uint32 address, uint32 value)
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{
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if(!big_endian)
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{
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WriteU8(address + 0, value >> 0);
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WriteU8(address + 1, value >> 8);
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WriteU8(address + 2, value >> 16);
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}
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}
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template<typename T>
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INLINE T Read(uint32 address)
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{
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if(sizeof(T) == 4)
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return(ReadU32(address));
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else if(sizeof(T) == 2)
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return(ReadU16(address));
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else
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return(ReadU8(address));
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}
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template<typename T>
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INLINE void Write(uint32 address, T value)
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{
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if(sizeof(T) == 4)
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WriteU32(address, value);
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else if(sizeof(T) == 2)
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WriteU16(address, value);
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else
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WriteU8(address, value);
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}
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};
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#undef MAS_NATIVE_IS_BIGENDIAN
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#endif
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