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#ifndef __FASTMEM_H__
#define __FASTMEM_H__
#include "defs.h"
#include "mem.h"
static byte readb(int a)
{
byte *p = mbc.rmap[a>>12];
if (p) return p[a];
else return mem_read(a);
}
static void writeb(int a, byte b)
{
byte *p = mbc.wmap[a>>12];
if (p) p[a] = b;
else mem_write(a, b);
}
static 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 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 byte readhi(int a)
{
return readb(a | 0xff00);
}
static 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
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