apps/plugins/zxbox/z80_op3.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_op3.h"
  24 #include "z80_ari.h"
  25 #endif
  26
  27 #define ARIR(arin, func, an, rn, r, n) \
  28 OPDEF(arin ## _ ## rn, 0x80+an*8+n)      \
  29 {                                        \
  30   func(r);                               \
  31   ENTIME(4);                             \
  32 }
  33
  34 #define ARIIHL(arin, func, an) \
  35 OPDEF(arin ## _ihl, 0x86+an*8)           \
  36 {                                        \
  37   func(*HLP);                            \
  38   ENTIME(7);                             \
  39 }
  40
  41 #define ARIID(arin, func, an, ixyn, ixy) \
  42 OPDEF(arin ## _i ## ixyn ## d, 0x86+an*8)\
  43 {                                        \
  44   register dbyte addr;                   \
  45   register byte val;                     \
  46   IXDGET(ixy, addr);                     \
  47   val = READ(addr);                      \
  48   func(val);                             \
  49   ENTIME(15);                            \
  50 }
  51
  52
  53 #define ADD_A_R(rn, r, n) ARIR(add_a, ADD, 0, rn, r, n)
  54 #define ADC_A_R(rn, r, n) ARIR(adc_a, ADC, 1, rn, r, n)
  55 #define SUB_R(rn, r, n)   ARIR(sub,   SUB, 2, rn, r, n)
  56 #define SBC_A_R(rn, r, n) ARIR(sbc_a, SBC, 3, rn, r, n)
  57 #define AND_R(rn, r, n)   ARIR(and,   AND, 4, rn, r, n)
  58 #define XOR_R(rn, r, n)   ARIR(xor,   XOR, 5, rn, r, n)
  59 #define OR_R(rn, r, n)    ARIR(or,    OR,  6, rn, r, n)
  60 #define CP_R(rn, r, n)    ARIR(cp,    CP,  7, rn, r, n)
  61
  62 ADD_A_R(b, RB, 0)
  63 ADD_A_R(c, RC, 1)
  64 ADD_A_R(d, RD, 2)
  65 ADD_A_R(e, RE, 3)
  66 ADD_A_R(h, RH, 4)
  67 ADD_A_R(l, RL, 5)
  68 ADD_A_R(a, RA, 7)
  69
  70 ADC_A_R(b, RB, 0)
  71 ADC_A_R(c, RC, 1)
  72 ADC_A_R(d, RD, 2)
  73 ADC_A_R(e, RE, 3)
  74 ADC_A_R(h, RH, 4)
  75 ADC_A_R(l, RL, 5)
  76 ADC_A_R(a, RA, 7)
  77
  78 SUB_R(b, RB, 0)
  79 SUB_R(c, RC, 1)
  80 SUB_R(d, RD, 2)
  81 SUB_R(e, RE, 3)
  82 SUB_R(h, RH, 4)
  83 SUB_R(l, RL, 5)
  84 SUB_R(a, RA, 7)
  85
  86 SBC_A_R(b, RB, 0)
  87 SBC_A_R(c, RC, 1)
  88 SBC_A_R(d, RD, 2)
  89 SBC_A_R(e, RE, 3)
  90 SBC_A_R(h, RH, 4)
  91 SBC_A_R(l, RL, 5)
  92 SBC_A_R(a, RA, 7)
  93
  94 AND_R(b, RB, 0)
  95 AND_R(c, RC, 1)
  96 AND_R(d, RD, 2)
  97 AND_R(e, RE, 3)
  98 AND_R(h, RH, 4)
  99 AND_R(l, RL, 5)
 100 AND_R(a, RA, 7)
 101
 102 XOR_R(b, RB, 0)
 103 XOR_R(c, RC, 1)
 104 XOR_R(d, RD, 2)
 105 XOR_R(e, RE, 3)
 106 XOR_R(h, RH, 4)
 107 XOR_R(l, RL, 5)
 108 /* XOR_R(a, RA, 7) */
 109
 110 OPDEF(xor_a, 0xAF)
 111 {
 112   RA = 0;
 113   RF = (RF & ~(ALLF)) | (ZF | PVF);
 114   ENTIME(4);
 115 }
 116
 117 OR_R(b, RB, 0)
 118 OR_R(c, RC, 1)
 119 OR_R(d, RD, 2)
 120 OR_R(e, RE, 3)
 121 OR_R(h, RH, 4)
 122 OR_R(l, RL, 5)
 123 OR_R(a, RA, 7)
 124
 125 CP_R(b, RB, 0)
 126 CP_R(c, RC, 1)
 127 CP_R(d, RD, 2)
 128 CP_R(e, RE, 3)
 129 CP_R(h, RH, 4)
 130 CP_R(l, RL, 5)
 131 CP_R(a, RA, 7)
 132
 133 ARIIHL(add_a, ADD, 0)
 134 ARIIHL(adc_a, ADC, 1)
 135 ARIIHL(sub,   SUB, 2)
 136 ARIIHL(sbc_a, SBC, 3)
 137 ARIIHL(and,   AND, 4)
 138 ARIIHL(xor,   XOR, 5)
 139 ARIIHL(or,    OR,  6)
 140 ARIIHL(cp,    CP,  7)
 141
 142 #include "z80_op3x.c"