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Linux Cubed Series 7: Sunsite
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Linux Cubed Series 7 - Sunsite Vol 1.iso
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system
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emulator
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uae-0.000
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uae-0
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uae-0.6.0
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include
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memory.h
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C/C++ Source or Header
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1996-06-12
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3KB
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152 lines
/*
* UAE - The Un*x Amiga Emulator
*
* memory management
*
* (c) 1995 Bernd Schmidt
*/
#define chipmem_size 0x200000
#define bogomem_size 0x100000 /* C00000 crap mem */
#define kickmem_size 0x080000
#define chipmem_start 0x000000
#define bogomem_start 0xC00000
#define kickmem_start 0xF80000
extern int ersatzkickfile;
typedef ULONG (*lget_func)(CPTR) REGPARAM;
typedef UWORD (*wget_func)(CPTR) REGPARAM;
typedef UBYTE (*bget_func)(CPTR) REGPARAM;
typedef void (*lput_func)(CPTR,ULONG) REGPARAM;
typedef void (*wput_func)(CPTR,UWORD) REGPARAM;
typedef void (*bput_func)(CPTR,UBYTE) REGPARAM;
typedef UWORD *(*xlate_func)(CPTR) REGPARAM;
typedef int (*check_func)(CPTR, ULONG) REGPARAM;
typedef struct {
lget_func lget;
wget_func wget;
bget_func bget;
lput_func lput;
wput_func wput;
bput_func bput;
xlate_func xlateaddr;
check_func check;
} addrbank;
extern addrbank chipmem_bank;
extern addrbank kickmem_bank;
extern addrbank custom_bank;
extern addrbank clock_bank;
extern addrbank cia_bank;
extern addrbank rtarea_bank;
extern addrbank expamem_bank;
extern addrbank fastmem_bank;
extern void rtarea_init (void);
extern void expamem_init (void);
extern void expamem_reset (void);
extern ULONG fastmem_size;
/* Default memory access functions */
extern int default_check(CPTR addr, ULONG size) REGPARAM;
extern UWORD *default_xlate(CPTR addr) REGPARAM;
extern addrbank membanks[65536];
static __inline__ unsigned int bankindex(CPTR a)
{
return a>>16;
}
static __inline__ ULONG longget(CPTR addr)
{
return membanks[bankindex(addr)].lget(addr);
}
static __inline__ UWORD wordget(CPTR addr)
{
return membanks[bankindex(addr)].wget(addr);
}
static __inline__ UBYTE byteget(CPTR addr)
{
return membanks[bankindex(addr)].bget(addr);
}
static __inline__ void longput(CPTR addr, ULONG l)
{
membanks[bankindex(addr)].lput(addr, l);
}
static __inline__ void wordput(CPTR addr, UWORD w)
{
membanks[bankindex(addr)].wput(addr, w);
}
static __inline__ void byteput(CPTR addr, UBYTE b)
{
membanks[bankindex(addr)].bput(addr, b);
}
static __inline__ int check_addr(CPTR a)
{
#ifdef NO_EXCEPTION_3
return 1;
#else
return (a & 1) == 0;
#endif
}
extern int buserr;
extern void memory_init(void);
extern void map_banks(addrbank bank, int first, int count);
static __inline__ ULONG get_long(CPTR addr)
{
if (check_addr(addr))
return longget(addr);
buserr = 1;
return 0;
}
static __inline__ UWORD get_word(CPTR addr)
{
if (check_addr(addr))
return wordget(addr);
buserr = 1;
return 0;
}
static __inline__ UBYTE get_byte(CPTR addr)
{
return byteget(addr);
}
static __inline__ void put_long(CPTR addr, ULONG l)
{
if (!check_addr(addr))
buserr = 1;
longput(addr, l);
}
static __inline__ void put_word(CPTR addr, UWORD w)
{
if (!check_addr(addr))
buserr = 1;
wordput(addr, w);
}
static __inline__ void put_byte(CPTR addr, UBYTE b)
{
byteput(addr, b);
}
static __inline__ UWORD *get_real_address(CPTR addr)
{
if (!check_addr(addr))
buserr = 1;
return membanks[bankindex(addr)].xlateaddr(addr);
}
static __inline__ int valid_address(CPTR addr, ULONG size)
{
if (!check_addr(addr))
buserr = 1;
return membanks[bankindex(addr)].check(addr, size);
}