apps/plugins/zxbox/z80_op2.c

   1 /*
   2  * Copyright (C) 1996-1998 Szeredi Miklos
   3  * Email: mszeredi@inf.bme.hu
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version. See the file COPYING.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  *
  19  */
  20
  21 #ifndef NO_OPDEF
  22 #include "z80_def.h"
  23 #include "z80_op2.h"
  24 #endif
  25
  26 OPDEF(halt, 0x76)
  27 {
  28   register int nn;
  29
  30   DANM(haltstate) = 1;
  31   nn = (DANM(tc) - 1) / 4 + 1;
  32
  33   DANM(tc) -= 4 * nn;
  34   RR += nn-1;
  35   ENDOP();
  36 }
  37
  38 #define LD_R_R(rdn, rsn, rd, rs, n1, n2) \
  39 OPDEF(ld_ ## rdn ## _ ## rsn, 0x40 + n1 * 8 + n2)          \
  40 {                                                          \
  41   rd = rs;                                                 \
  42   ENTIME(4);                                               \
  43 }
  44
  45 #if 0
  46
  47 #define LD_NOOP(rsd, n) \
  48 OPDEF(ld_ ## rsd ## _ ## rsd, 0x40 + n * 8 + n)            \
  49 {                                                          \
  50   ENTIME(4);                                               \
  51 }
  52
  53 LD_NOOP(b, 0)
  54 LD_NOOP(c, 1)
  55 LD_NOOP(d, 2)
  56 LD_NOOP(e, 3)
  57 LD_NOOP(h, 4)
  58 LD_NOOP(l, 5)
  59 LD_NOOP(a, 7)
  60
  61 #endif
  62
  63 LD_R_R(b, c, RB, RC, 0, 1)
  64 LD_R_R(b, d, RB, RD, 0, 2)
  65 LD_R_R(b, e, RB, RE, 0, 3)
  66 LD_R_R(b, h, RB, RH, 0, 4)
  67 LD_R_R(b, l, RB, RL, 0, 5)
  68 LD_R_R(b, a, RB, RA, 0, 7)
  69
  70 LD_R_R(c, b, RC, RB, 1, 0)
  71 LD_R_R(c, d, RC, RD, 1, 2)
  72 LD_R_R(c, e, RC, RE, 1, 3)
  73 LD_R_R(c, h, RC, RH, 1, 4)
  74 LD_R_R(c, l, RC, RL, 1, 5)
  75 LD_R_R(c, a, RC, RA, 1, 7)
  76
  77 LD_R_R(d, b, RD, RB, 2, 0)
  78 LD_R_R(d, c, RD, RC, 2, 1)
  79 LD_R_R(d, e, RD, RE, 2, 3)
  80 LD_R_R(d, h, RD, RH, 2, 4)
  81 LD_R_R(d, l, RD, RL, 2, 5)
  82 LD_R_R(d, a, RD, RA, 2, 7)
  83
  84
  85 LD_R_R(e, b, RE, RB, 3, 0)
  86 LD_R_R(e, c, RE, RC, 3, 1)
  87 LD_R_R(e, d, RE, RD, 3, 2)
  88 LD_R_R(e, h, RE, RH, 3, 4)
  89 LD_R_R(e, l, RE, RL, 3, 5)
  90 LD_R_R(e, a, RE, RA, 3, 7)
  91
  92 LD_R_R(h, b, RH, RB, 4, 0)
  93 LD_R_R(h, c, RH, RC, 4, 1)
  94 LD_R_R(h, d, RH, RD, 4, 2)
  95 LD_R_R(h, e, RH, RE, 4, 3)
  96 LD_R_R(h, l, RH, RL, 4, 5)
  97 LD_R_R(h, a, RH, RA, 4, 7)
  98
  99 LD_R_R(l, b, RL, RB, 5, 0)
 100 LD_R_R(l, c, RL, RC, 5, 1)
 101 LD_R_R(l, d, RL, RD, 5, 2)
 102 LD_R_R(l, e, RL, RE, 5, 3)
 103 LD_R_R(l, h, RL, RH, 5, 4)
 104 LD_R_R(l, a, RL, RA, 5, 7)
 105
 106 LD_R_R(a, b, RA, RB, 7, 0)
 107 LD_R_R(a, c, RA, RC, 7, 1)
 108 LD_R_R(a, d, RA, RD, 7, 2)
 109 LD_R_R(a, e, RA, RE, 7, 3)
 110 LD_R_R(a, h, RA, RH, 7, 4)
 111 LD_R_R(a, l, RA, RL, 7, 5)
 112
 113
 114 #define LD_R_IHL(rdn, rd, n) \
 115 OPDEF(ld_ ## rdn ## _ihl, 0x46+n*8)          \
 116 {                                            \
 117   rd = *HLP;                                 \
 118   ENTIME(7);                                 \
 119 }
 120
 121 #define LD_R_ID(ixyn, ixy, rsn, rs, n) \
 122 OPDEF(ld_ ## rsn ## _i ## ixyn ## d, 0x46+n*8) \
 123 {                                  \
 124   register dbyte addr;             \
 125   IXDGET(ixy, addr);               \
 126   rs = READ(addr);                 \
 127   ENTIME(15);                      \
 128 }
 129
 130
 131 LD_R_IHL(b, RB, 0)
 132 LD_R_IHL(c, RC, 1)
 133 LD_R_IHL(d, RD, 2)
 134 LD_R_IHL(e, RE, 3)
 135 LD_R_IHL(h, RH, 4)
 136 LD_R_IHL(l, RL, 5)
 137 LD_R_IHL(a, RA, 7)
 138
 139 #define LD_IHL_R(rsn, rs, n) \
 140 OPDEF(ld_ihl_ ## rsn, 0x70+n)      \
 141 {                                  \
 142   PUTMEM(HL, HLP, rs);             \
 143   ENTIME(7);                       \
 144 }
 145
 146 #define LD_ID_R(ixyn, ixy, rsn, rs, n) \
 147 OPDEF(ld_i ## ixyn ## d_ ## rsn, 0x70+n) \
 148 {                                  \
 149   register dbyte addr;             \
 150   IXDGET(ixy, addr);               \
 151   WRITE(addr, rs);                 \
 152   ENTIME(15);                      \
 153 }
 154
 155
 156
 157 LD_IHL_R(b, RB, 0)
 158 LD_IHL_R(c, RC, 1)
 159 LD_IHL_R(d, RD, 2)
 160 LD_IHL_R(e, RE, 3)
 161 LD_IHL_R(h, RH, 4)
 162 LD_IHL_R(l, RL, 5)
 163 LD_IHL_R(a, RA, 7)
 164
 165 #include "z80_op2x.c"