135 lines
2.7 KiB
C
135 lines
2.7 KiB
C
#include <stdio.h>
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#include <ctype.h>
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#include "ansidecl.h"
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#include "callback.h"
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#include "opcode/mn10300.h"
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#include <limits.h>
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#include "remote-sim.h"
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extern host_callback *mn10300_callback;
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#define DEBUG_TRACE 0x00000001
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#define DEBUG_VALUES 0x00000002
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extern int mn10300_debug;
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#if UCHAR_MAX == 255
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typedef unsigned char uint8;
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typedef signed char int8;
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#else
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#error "Char is not an 8-bit type"
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#endif
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#if SHRT_MAX == 32767
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typedef unsigned short uint16;
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typedef signed short int16;
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#else
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#error "Short is not a 16-bit type"
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#endif
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#if INT_MAX == 2147483647
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typedef unsigned int uint32;
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typedef signed int int32;
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#else
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# if LONG_MAX == 2147483647
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typedef unsigned long uint32;
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typedef signed long int32;
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# else
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# error "Neither int nor long is a 32-bit type"
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# endif
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#endif
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typedef uint32 reg_t;
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struct simops
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{
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long opcode;
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long mask;
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void (*func)();
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int length;
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int format;
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int numops;
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int operands[16];
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};
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/* The current state of the processor; registers, memory, etc. */
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struct _state
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{
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reg_t regs[15]; /* registers, d0-d3, a0-a3, sp, pc, mdr, psw,
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lir, lar, mdrq */
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uint8 *mem; /* main memory */
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int exception;
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} State;
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extern uint32 OP[4];
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extern struct simops Simops[];
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#define PC (State.regs[9])
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#define PSW (State.regs[11])
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#define PSW_Z 0x1
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#define PSW_N 0x2
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#define PSW_C 0x4
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#define PSW_V 0x8
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#define REG_D0 0
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#define REG_A0 4
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#define REG_SP 8
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#define REG_PC 9
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#define REG_MDR 10
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#define REG_PSW 11
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#define REG_LIR 12
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#define REG_LAR 13
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#define REG_MDRQ 14
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#define SEXT3(x) ((((x)&0x7)^(~0x3))+0x4)
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/* sign-extend a 4-bit number */
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#define SEXT4(x) ((((x)&0xf)^(~0x7))+0x8)
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/* sign-extend a 5-bit number */
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#define SEXT5(x) ((((x)&0x1f)^(~0xf))+0x10)
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/* sign-extend an 8-bit number */
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#define SEXT8(x) ((((x)&0xff)^(~0x7f))+0x80)
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/* sign-extend a 9-bit number */
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#define SEXT9(x) ((((x)&0x1ff)^(~0xff))+0x100)
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/* sign-extend a 16-bit number */
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#define SEXT16(x) ((((x)&0xffff)^(~0x7fff))+0x8000)
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/* sign-extend a 22-bit number */
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#define SEXT22(x) ((((x)&0x3fffff)^(~0x1fffff))+0x200000)
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#define MAX32 0x7fffffffLL
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#define MIN32 0xff80000000LL
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#define MASK32 0xffffffffLL
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#define MASK40 0xffffffffffLL
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#define RLW(x) load_mem (x, 4)
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#ifdef _WIN32
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#define SIGTRAP 5
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#define SIGQUIT 3
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#endif
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/* Function declarations. */
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uint32 get_word PARAMS ((uint8 *));
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uint16 get_half PARAMS ((uint8 *));
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uint8 get_byte PARAMS ((uint8 *));
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void put_word PARAMS ((uint8 *, uint32));
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void put_half PARAMS ((uint8 *, uint16));
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void put_byte PARAMS ((uint8 *, uint8));
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extern uint32 load_mem PARAMS ((SIM_ADDR addr, int len));
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extern void store_mem PARAMS ((SIM_ADDR addr, int len, uint32 data));
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extern uint8 *map PARAMS ((SIM_ADDR addr));
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