Misc/berger/m68k.h

   1 #include <exec/types.h>
   2 #include "endianess.h"
   3
   4 struct M68k
   5 {
   6   ULONG D[8]; // maintain this order of D before A for MOVEM!!! */
   7   ULONG A[8];
   8   ULONG PC;
   9   UWORD SR;
  10
  11   ULONG oldvalue;
  12   ULONG lastresult;     // the result of the last operation
  13   ULONG subvalue;
  14   ULONG addvalue;
  15   ULONG lastop;         // the last operation
  16   ULONG instsize;
  17 };
  18
  19 #define CPUFLAG_X       0x10
  20 #define CPUFLAG_N       0x08
  21 #define CPUFLAG_Z       0x04
  22 #define CPUFLAG_V       0x02
  23 #define CPUFLAG_C       0x01
  24
  25 #define CPUFLAG_MASTER  (0x01 << 12)
  26 #define CPUFLAG_USER    (0x01 << 13)
  27
  28 #define OP_SIZE_BYTE            0x00
  29 #define OP_SIZE_WORD            0x01
  30 #define OP_SIZE_LONG            0x02
  31 #define OP_SIZE_MASK            0x03
  32
  33 #define OP_TYPE1                0x04 /* copy X, calculate N,Z, set V,C to zero */
  34 #define OP_TYPE2                0x08 /* copy X,C calculate V,Z & N (add) */
  35 #define OP_TYPE3                0x0c /* calculate X,V,C,Z & N */
  36 #define OP_TYPE4                0x10 /* copy X,C calculate V,Z & N (sub) */
  37 #define OP_TYPE5                0x14 /* copy X,  calculate V,C,Z,N (cmp) */
  38 #define OP_TYPE6                0x18 /* unimplemented!!!!!! */
  39 #define OP_TYPE_MASK            0x1c
  40
  41 #define OP_DONTCALCFLAGZ        0x20
  42
  43 #define OP_DONTCARE     0x00
  44 #define OP_UPTODATE     OP_DONTCARE
  45
  46 #define OP_MOVE_BYTE    OP_TYPE1|OP_SIZE_BYTE
  47 #define OP_MOVE_WORD    OP_TYPE1|OP_SIZE_WORD
  48 #define OP_MOVE_LONG    OP_TYPE1|OP_SIZE_LONG
  49
  50 #define OP_NOT_BYTE     OP_TYPE1|OP_SIZE_BYTE
  51 #define OP_NOT_WORD     OP_TYPE1|OP_SIZE_WORD
  52 #define OP_NOT_LONG     OP_TYPE1|OP_SIZE_LONG
  53
  54 #define OP_AND_BYTE     OP_TYPE1|OP_SIZE_BYTE
  55 #define OP_AND_WORD     OP_TYPE1|OP_SIZE_WORD
  56 #define OP_AND_LONG     OP_TYPE1|OP_SIZE_LONG
  57
  58 #define OP_EOR_BYTE     OP_TYPE1|OP_SIZE_BYTE
  59 #define OP_EOR_WORD     OP_TYPE1|OP_SIZE_WORD
  60 #define OP_EOR_LONG     OP_TYPE1|OP_SIZE_LONG
  61
  62 #define OP_OR_BYTE      OP_TYPE1|OP_SIZE_BYTE
  63 #define OP_OR_WORD      OP_TYPE1|OP_SIZE_WORD
  64 #define OP_OR_LONG      OP_TYPE1|OP_SIZE_LONG
  65
  66 #define OP_MULS_LONG    OP_TYPE1|OP_SIZE_LONG
  67 #define OP_MULU_LONG    OP_TYPE1|OP_SIZE_LONG
  68
  69 /* correct the following!!! */
  70 #define OP_DIVS_WORD    OP_TYPE1|OP_SIZE_LONG
  71
  72 #define OP_EXT          OP_TYPE1|OP_SIZE_LONG
  73 #define OP_SWAP         OP_TYPE1|OP_SIZE_LONG
  74
  75 #define OP_ADD_BYTE     OP_TYPE2|OP_SIZE_BYTE
  76 #define OP_ADD_WORD     OP_TYPE2|OP_SIZE_WORD
  77 #define OP_ADD_LONG     OP_TYPE2|OP_SIZE_LONG
  78
  79 #define OP_NEG_BYTE     OP_TYPE3|OP_SIZE_BYTE
  80 #define OP_NEG_WORD     OP_TYPE3|OP_SIZE_WORD
  81 #define OP_NEG_LONG     OP_TYPE3|OP_SIZE_LONG
  82
  83 #define OP_NEGX_BYTE    OP_TYPE3|OP_SIZE_BYTE
  84 #define OP_NEGX_WORD    OP_TYPE3|OP_SIZE_WORD
  85 #define OP_NEGX_LONG    OP_TYPE3|OP_SIZE_LONG
  86
  87 #define OP_CMP_BYTE     OP_TYPE5|OP_SIZE_BYTE
  88 #define OP_CMP_WORD     OP_TYPE5|OP_SIZE_WORD
  89 #define OP_CMP_LONG     OP_TYPE5|OP_SIZE_LONG
  90
  91 #define OP_SUB_BYTE     OP_TYPE4|OP_SIZE_BYTE
  92 #define OP_SUB_WORD     OP_TYPE4|OP_SIZE_WORD
  93 #define OP_SUB_LONG     OP_TYPE4|OP_SIZE_LONG
  94
  95 #define OP_CMP_BYTE     OP_TYPE5|OP_SIZE_BYTE
  96 #define OP_CMP_WORD     OP_TYPE5|OP_SIZE_WORD
  97 #define OP_CMP_LONG     OP_TYPE5|OP_SIZE_LONG
  98
  99
 100 #define OP_ASL_BYTE     OP_TYPE6|OP_SIZE_BYTE
 101 #define OP_ASL_WORD     OP_TYPE6|OP_SIZE_WORD
 102 #define OP_ASL_LONG     OP_TYPE6|OP_SIZE_LONG
 103
 104 #define OP_LSL_BYTE     OP_TYPE6|OP_SIZE_BYTE
 105 #define OP_LSL_WORD     OP_TYPE6|OP_SIZE_WORD
 106 #define OP_LSL_LONG     OP_TYPE6|OP_SIZE_LONG
 107
 108 #define OP_ROL_BYTE     OP_TYPE6|OP_SIZE_BYTE
 109 #define OP_ROL_WORD     OP_TYPE6|OP_SIZE_WORD
 110 #define OP_ROL_LONG     OP_TYPE6|OP_SIZE_LONG
 111
 112 #define OP_ROXL_BYTE    OP_TYPE6|OP_SIZE_BYTE
 113 #define OP_ROXL_WORD    OP_TYPE6|OP_SIZE_WORD
 114 #define OP_ROXL_LONG    OP_TYPE6|OP_SIZE_LONG
 115
 116 #define OP_ASR_BYTE     OP_TYPE6|OP_SIZE_BYTE
 117 #define OP_ASR_WORD     OP_TYPE6|OP_SIZE_WORD
 118 #define OP_ASR_LONG     OP_TYPE6|OP_SIZE_LONG
 119
 120 #define OP_LSR_BYTE     OP_TYPE6|OP_SIZE_BYTE
 121 #define OP_LSR_WORD     OP_TYPE6|OP_SIZE_WORD
 122 #define OP_LSR_LONG     OP_TYPE6|OP_SIZE_LONG
 123
 124 #define OP_ROR_BYTE     OP_TYPE6|OP_SIZE_BYTE
 125 #define OP_ROR_WORD     OP_TYPE6|OP_SIZE_WORD
 126 #define OP_ROR_LONG     OP_TYPE6|OP_SIZE_LONG
 127
 128 #define OP_ROXR_BYTE    OP_TYPE6|OP_SIZE_BYTE
 129 #define OP_ROXR_WORD    OP_TYPE6|OP_SIZE_WORD
 130 #define OP_ROXR_LONG    OP_TYPE6|OP_SIZE_LONG
 131