sim/v850/v850_sim.h

   1 #include <stdio.h>
   2 #include <ctype.h>
   3 #include "ansidecl.h"
   4 #include "opcode/v850.h"
   5
   6 /* FIXME: host defines */
   7 typedef unsigned char uint8;
   8 typedef unsigned short uint16;
   9 typedef unsigned int uint32;
  10 typedef signed char int8;
  11 typedef signed short int16;
  12 typedef signed int int32;
  13 typedef signed long long int64;
  14
  15 /* FIXME: V850 defines */
  16 typedef uint32 reg_t;
  17
  18 struct simops
  19 {
  20   long opcode;
  21   long mask;
  22   void (*func)();
  23   int numops;
  24   int operands[9];
  25 };
  26
  27 struct _state
  28 {
  29   reg_t regs[32];               /* general-purpose registers */
  30   reg_t sregs[32];              /* system regsiters, including psw */
  31   reg_t pc;
  32   uint8 *imem;
  33   uint8 *dmem;
  34   int   exception;
  35 } State;
  36
  37 extern uint16 OP[4];
  38 extern struct simops Simops[];
  39
  40 #define PC      (State.pc)
  41
  42 #define PSW_NP 0x80
  43 #define PSW_EP 0x40
  44 #define PSW_ID 0x20
  45 #define PSW_SAT 0x10
  46 #define PSW_CY 0x8
  47 #define PSW_OV 0x4
  48 #define PSW_S 0x2
  49 #define PSW_Z 0x1
  50
  51 #define SEXT3(x)        ((((x)&0x7)^(~3))+4)
  52
  53 /* sign-extend a 4-bit number */
  54 #define SEXT4(x)        ((((x)&0xf)^(~7))+8)
  55
  56 /* sign-extend an 8-bit number */
  57 #define SEXT8(x)        ((((x)&0xff)^(~0x7f))+0x80)
  58
  59 /* sign-extend a 16-bit number */
  60 #define SEXT16(x)       ((((x)&0xffff)^(~0x7fff))+0x8000)
  61
  62 /* sign-extend a 32-bit number */
  63 #define SEXT32(x)       ((((x)&0xffffffffLL)^(~0x7fffffffLL))+0x80000000LL)
  64
  65 /* sign extend a 40 bit number */
  66 #define SEXT40(x)       ((((x)&0xffffffffffLL)^(~0x7fffffffffLL))+0x8000000000LL)
  67
  68 /* sign extend a 44 bit number */
  69 #define SEXT44(x)       ((((x)&0xfffffffffffLL)^(~0x7ffffffffffLL))+0x80000000000LL)
  70
  71 /* sign extend a 60 bit number */
  72 #define SEXT60(x)       ((((x)&0xfffffffffffffffLL)^(~0x7ffffffffffffffLL))+0x800000000000000LL)
  73
  74 #define MAX32   0x7fffffffLL
  75 #define MIN32   0xff80000000LL
  76 #define MASK32  0xffffffffLL
  77 #define MASK40  0xffffffffffLL
  78
  79 #define INC_ADDR(x,i)   x = ((State.MD && x == MOD_E) ? MOD_S : (x)+(i))
  80
  81 #define RB(x)   (*((uint8 *)((x)+State.imem)))
  82 #define SB(addr,data)   ( RB(addr) = (data & 0xff))
  83
  84 #ifdef WORDS_BIGENDIAN
  85
  86 #define RW(x)                   (*((uint16 *)((x)+State.imem)))
  87 #define RLW(x)                  (*((uint32 *)((x)+State.imem)))
  88 #define SW(addr,data)           RW(addr)=data
  89 #define READ_16(x)              (*((int16 *)(x)))
  90 #define WRITE_16(addr,data)     (*(int16 *)(addr)=data)
  91 #define READ_64(x)              (*((int64 *)(x)))
  92 #define WRITE_64(addr,data)     (*(int64 *)(addr)=data)
  93
  94 #else
  95
  96 uint32 get_longword PARAMS ((uint8 *));
  97 uint16 get_word PARAMS ((uint8 *));
  98 int64 get_longlong PARAMS ((uint8 *));
  99 void write_word PARAMS ((uint8 *addr, uint16 data));
 100 void write_longlong PARAMS ((uint8 *addr, int64 data));
 101
 102 #define SW(addr,data)           write_word((long)(addr)+State.imem,data)
 103 #define RW(x)                   get_word((long)(x)+State.imem)
 104 #define RLW(x)                  get_longword((long)(x)+State.imem)
 105 #define READ_16(x)              get_word(x)
 106 #define WRITE_16(addr,data)     write_word(addr,data)
 107 #define READ_64(x)              get_longlong(x)
 108 #define WRITE_64(addr,data)     write_longlong(addr,data)
 109
 110 #endif /* not WORDS_BIGENDIAN */