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#include <stdio.h>
#include <ctype.h>
#include "ansidecl.h"
#include "callback.h"
#include "opcode/mn10200.h"
#include <limits.h>
#include "remote-sim.h"
#ifndef INLINE
#ifdef __GNUC__
#define INLINE inline
#else
#define INLINE
#endif
#endif
extern host_callback *mn10200_callback;
#define DEBUG_TRACE 0x00000001
#define DEBUG_VALUES 0x00000002
extern int mn10200_debug;
#ifdef __STDC__
#define SIGNED signed
#else
#define SIGNED
#endif
#if UCHAR_MAX == 255
typedef unsigned char uint8;
typedef SIGNED char int8;
#else
error "Char is not an 8-bit type"
#endif
#if SHRT_MAX == 32767
typedef unsigned short uint16;
typedef SIGNED short int16;
#else
error "Short is not a 16-bit type"
#endif
#if INT_MAX == 2147483647
typedef unsigned int uint32;
typedef SIGNED int int32;
#else
# if LONG_MAX == 2147483647
typedef unsigned long uint32;
typedef SIGNED long int32;
# else
error "Neither int nor long is a 32-bit type"
# endif
#endif
typedef uint32 reg_t;
struct simops
{
long opcode;
long mask;
void (*func)();
int length;
int format;
int numops;
int operands[16];
};
/* The current state of the processor; registers, memory, etc. */
struct _state
{
reg_t regs[11]; /* registers, d0-d3, a0-a3, pc, mdr, psw */
uint8 *mem; /* main memory */
int exception; /* Actually a signal number. */
int exited; /* Did the program exit? */
} State;
extern uint32 OP[4];
extern struct simops Simops[];
#define PC (State.regs[8])
#define PSW (State.regs[10])
#define PSW_ZF 0x1
#define PSW_NF 0x2
#define PSW_CF 0x4
#define PSW_VF 0x8
#define PSW_ZX 0x10
#define PSW_NX 0x20
#define PSW_CX 0x40
#define PSW_VX 0x80
#define REG_D0 0
#define REG_A0 4
#define REG_SP 7
#define REG_PC 8
#define REG_MDR 9
#define REG_PSW 10
#define SEXT3(x) ((((x)&0x7)^(~0x3))+0x4)
/* sign-extend a 4-bit number */
#define SEXT4(x) ((((x)&0xf)^(~0x7))+0x8)
/* sign-extend a 5-bit number */
#define SEXT5(x) ((((x)&0x1f)^(~0xf))+0x10)
/* sign-extend an 8-bit number */
#define SEXT8(x) ((((x)&0xff)^(~0x7f))+0x80)
/* sign-extend a 9-bit number */
#define SEXT9(x) ((((x)&0x1ff)^(~0xff))+0x100)
/* sign-extend a 16-bit number */
#define SEXT16(x) ((((x)&0xffff)^(~0x7fff))+0x8000)
/* sign-extend a 22-bit number */
#define SEXT22(x) ((((x)&0x3fffff)^(~0x1fffff))+0x200000)
/* sign-extend a 24-bit number */
#define SEXT24(x) ((((x)&0xffffff)^(~0x7fffff))+0x800000)
#ifdef _WIN32
#define SIGTRAP 5
#define SIGQUIT 3
#endif
extern int max_mem;
#define load_mem_big(addr,len) \
(len == 1 ? *(((addr) & 0xffffff) + State.mem) : \
len == 2 ? ((*(((addr) & 0xffffff) + State.mem) << 8) \
| *((((addr) + 1) & 0xffffff) + State.mem)) : \
((*(((addr) & 0xffffff) + State.mem) << 16) \
| (*((((addr) + 1) & 0xffffff) + State.mem) << 8) \
| *((((addr) + 2) & 0xffffff) + State.mem)))
static INLINE uint32
load_byte (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[0];
}
static INLINE uint32
load_half (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[1] << 8 | p[0];
}
static INLINE uint32
load_3_byte (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[2] << 16 | p[1] << 8 | p[0];
}
static INLINE uint32
load_word (addr)
SIM_ADDR addr;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
return p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
}
static INLINE uint32
load_mem (addr, len)
SIM_ADDR addr;
int len;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
switch (len)
{
case 1:
return p[0];
case 2:
return p[1] << 8 | p[0];
case 3:
return p[2] << 16 | p[1] << 8 | p[0];
case 4:
return p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
default:
abort ();
}
}
static INLINE void
store_byte (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
}
static INLINE void
store_half (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
}
static INLINE void
store_3_byte (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
p[2] = data >> 16;
}
static INLINE void
store_word (addr, data)
SIM_ADDR addr;
uint32 data;
{
uint8 *p = (addr & 0xffffff) + State.mem;
#ifdef CHECK_ADDR
if ((addr & 0xffffff) > max_mem)
abort ();
#endif
p[0] = data;
p[1] = data >> 8;
p[2] = data >> 16;
p[3] = data >> 24;
}
/* Function declarations. */
uint32 get_word PARAMS ((uint8 *));
void put_word PARAMS ((uint8 *, uint32));
extern uint8 *map PARAMS ((SIM_ADDR addr));
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