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[/] [or1k/] [trunk/] [gdb-5.3/] [sim/] [mn10200/] [mn10200_sim.h] - Rev 1773
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#include <stdio.h> #include <ctype.h> #include "ansidecl.h" #include "gdb/callback.h" #include "opcode/mn10200.h" #include <limits.h> #include "gdb/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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