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fastmem.h
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fastmem.h
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#ifndef __FASTMEM_H__
#define __FASTMEM_H__
#include "defs.h"
#include "mem.h"
#include "dyntrans/compiler.h"
//extern struct stored_successor stored_successor;
static inline byte readb(int a)
{
byte *p = mbc.rmap[a>>12];
if (p) return p[a];
else return mem_read(a);
}
//byte readb2(int a);
static inline void writeb(int a, byte b)
{
byte *p = mbc.wmap[a>>12];
if (p) p[a] = b;
else mem_write(a, b);
}
static inline int readw(int a)
{
if ((a+1) & 0xfff)
{
byte *p = mbc.rmap[a>>12];
if (p)
{
//#ifdef IS_LITTLE_ENDIAN
// #ifndef ALLOW_UNALIGNED_IO
if (a&1) return p[a] | (p[a+1]<<8);
// #endif
return *(word *)(p+a);
//#else
// return p[a] | (p[a+1]<<8);
//#endif
}
}
return mem_read(a) | (mem_read(a+1)<<8);
}
static inline void writew(int a, int w)
{
if ((a+1) & 0xfff)
{
byte *p = mbc.wmap[a>>12];
if (p)
{
//#ifdef IS_LITTLE_ENDIAN
//#ifndef ALLOW_UNALIGNED_IO
if (a&1)
{
p[a] = w;
p[a+1] = w >> 8;
return;
}
//#endif
*(word *)(p+a) = w;
return;
//#else
// p[a] = w;
// p[a+1] = w >> 8;
// return;
//#endif
}
}
mem_write(a, w);
mem_write(a+1, w>>8);
}
static inline byte readhi(int a)
{
return readb(a | 0xff00);
}
static inline void writehi(int a, byte b)
{
writeb(a | 0xff00, b);
}
/*
#if 0
static byte readhi(int a)
{
byte (*rd)() = hi_read[a];
return rd ? rd(a) : (ram.hi[a] | himask[a]);
}
static void writehi(int a, byte b)
{
byte (*wr)() = hi_write[a];
if (wr) wr(a, b);
else ram.hi[a] = b & ~himask[a];
}
#endif
*/
#endif