sim/z8k/tm.h

   1 /* tm.h
   2    Copyright (C) 1992, 1993 Free Software Foundation, Inc.
   3
   4 This file is part of Z8KSIM
   5
   6 Z8KSIM is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 Z8KSIM is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Z8KZIM; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _TM_H
  21 #define _TM_H
  22
  23 #ifdef __FOOBEYGNUC__
  24 typedef SFtype __attribute__ ((mode (SF)));
  25 typedef DFtype __attribute__ ((mode (DF)));
  26
  27 typedef int HItype __attribute__ ((mode (HI)));
  28 typedef int SItype __attribute__ ((mode (SI)));
  29
  30 typedef unsigned int UHItype __attribute__ ((mode (HI)));
  31 typedef unsigned int USItype __attribute__ ((mode (SI)));
  32 #else
  33 typedef float SFtype;
  34 typedef double DFtype;
  35 typedef short int HItype;
  36 typedef long int SItype;
  37 typedef unsigned short UHItype ;
  38 typedef unsigned int USItype ;
  39 #endif
  40
  41 typedef struct UDIstruct
  42 {
  43   USItype high;
  44   USItype low;
  45 } UDItype;
  46
  47 #define BIG_ENDIAN_HOST
  48 typedef unsigned int sim_phys_addr_type;
  49 typedef unsigned int sim_logical_addr_type;
  50
  51 #define PAGE_POWER 23           /*  only one pages */
  52
  53 #define MAP_PHYSICAL_TO_LOGICAL(x)  (((x >> 8) & 0x7f0000) | (x & 0xffff))
  54 #define MAP_LOGICAL_TO_PHYSICAL(x)  (((x <<8) & 0x7f000000) | (x & 0xffff))
  55 #define REG_PC     17
  56 #define REG_CYCLES 18
  57 #define REG_INSTS  19
  58 #define REG_TIME   20
  59 #define REG_FP     21
  60 #define REG_SP     22
  61 #define REG_CCR    16
  62
  63 #define SET_REG(x,y)  set_reg(x,y)
  64 #define SINGLE_STEP 1
  65
  66 #define PSW_CARRY context->carry
  67 #define PSW_OP    context->op
  68 #define PSW_OVERFLOW context->overflow
  69 #define PSW_SIGN context->sign
  70 #define PSW_ZERO context->zero
  71 #define GET_PC()  context->pc
  72 #define SET_PC(x) context->pc = x
  73
  74 struct op_info
  75 {
  76   short int exec;
  77 };
  78
  79 extern struct op_info op_info_table[];
  80
  81 typedef union
  82 {
  83   unsigned short int word;
  84
  85 }
  86
  87 borw_type;
  88
  89 typedef struct state_struct
  90 {
  91   unsigned short *memory;
  92   int carry;
  93   int sign;
  94   int zero;
  95   int overflow;
  96   int op;
  97   int cycles;
  98
  99   borw_type regs[16];
 100
 101   sim_phys_addr_type sometimes_pc;
 102 #ifdef __GNUC__
 103   volatile
 104 #endif
 105   int exception;
 106
 107 #define iwords_0  iwords0
 108 #define iwords_1  iwords1
 109 #define iwords_2  iwords2
 110 #define iwords_3  iwords3
 111
 112 #define ibytes_0    (iwords_0>>8)
 113 #define ibytes_1    (iwords_0&0xff)
 114 #define ibytes_2    (iwords_1>>8)
 115 #define ibytes_3    (iwords_1& 0xff)
 116 #define ibytes_4    (iwords_2>>8)
 117
 118   int insts;
 119   int ticks;
 120
 121   int next_inst;
 122   int broken_flags;
 123
 124   int srca;
 125   int srcb;
 126   int dst;
 127   int size;
 128 }
 129
 130 sim_state_type;
 131
 132 #define CMP_FLAGS 100
 133 #define TST_FLAGS 101
 134 #endif
 135
 136 extern int get_word_mem_da PARAMS((sim_state_type *context, int addr));
 137 extern int get_word_reg PARAMS((sim_state_type *context, int reg));
 138 extern void support_call PARAMS((sim_state_type *context, int sc));
 139 extern void tm_exception PARAMS((int x));
 140 extern int tm_read_byte PARAMS((int x));
 141 extern int tm_signal PARAMS((void));
 142 extern void tm_state PARAMS((sim_state_type *x));
 143 extern void tm_write_byte PARAMS((int x, int y));
 144 extern void bfop_bad1 PARAMS(());
 145 extern int fail PARAMS((sim_state_type *context, int v));
 146 extern void fop_bad PARAMS((sim_state_type *context));
 147 extern void sfop_bad1 PARAMS(());
 148 extern void swap_long PARAMS((char *buf, int val));
 149 extern void swap_word PARAMS((char *buf, int val));
 150 extern void tm_fetch_register PARAMS((int regno, char *buf));
 151 extern void tm_info_print PARAMS((sim_state_type *x));
 152 extern void tm_resume PARAMS((int step));
 153 extern void tm_store_register PARAMS((int regno, int value));
 154
 155
 156 #ifndef __GNUC__
 157 /* If were using gnuc then these will be inlined, so the prototypes
 158  won't be right */
 159 long int sitoptr PARAMS((long int si));
 160 long int ptrtosi PARAMS((long int ptr));
 161 void put_long_reg PARAMS((sim_state_type *context, int reg, int val));
 162 void put_quad_reg PARAMS((sim_state_type *context, int reg, int val1, int val2));
 163 void put_word_reg PARAMS((sim_state_type *context, int reg, int val));
 164 SItype get_long_reg PARAMS((sim_state_type *context, int reg));
 165 void put_byte_reg PARAMS((sim_state_type *context, int reg, int val));
 166 int get_byte_reg PARAMS((sim_state_type *context, int reg));
 167 void put_word_mem_da PARAMS((sim_state_type *context, int addr, int value));
 168 unsigned char get_byte_mem_da PARAMS((sim_state_type *context, int addr));
 169 void put_byte_mem_da PARAMS((sim_state_type *context, int addr, int value));
 170 SItype get_long_mem_da PARAMS((sim_state_type *context, int addr));
 171 void put_long_mem_da PARAMS((sim_state_type *context, int addr, int value));
 172 int get_word_mem_ir PARAMS((sim_state_type *context, int reg));
 173 void put_word_mem_ir PARAMS((sim_state_type *context, int reg, int value));
 174 int get_byte_mem_ir PARAMS((sim_state_type *context, int reg));
 175 void put_byte_mem_ir PARAMS((sim_state_type *context, int reg, int value));
 176 int get_long_mem_ir PARAMS((sim_state_type *context, int reg));
 177 void put_long_mem_ir PARAMS((sim_state_type *context, int reg, int value));
 178 void put_long_mem_x PARAMS((sim_state_type *context, int base, int reg, int value));
 179 void put_word_mem_x PARAMS((sim_state_type *context, int base, int reg, int value));
 180 void put_byte_mem_x PARAMS((sim_state_type *context, int base, int reg, int value));
 181 int get_word_mem_x PARAMS((sim_state_type *context, int base, int reg));
 182 int get_byte_mem_x PARAMS((sim_state_type *context, int base, int reg));
 183 int get_long_mem_x PARAMS((sim_state_type *context, int base, int reg));
 184 int COND PARAMS((sim_state_type *context, int c));
 185 void NORMAL_FLAGS PARAMS((sim_state_type *context, int size, int dst, int srca, int srcb));
 186 void TEST_NORMAL_FLAGS PARAMS((sim_state_type *context, int size, int dst));
 187 void put_ptr_long_reg PARAMS((sim_state_type *context, int reg, int val));
 188 long int get_ptr_long_reg PARAMS((sim_state_type *context, int reg));
 189 long int get_ptr_long_mem_ir PARAMS((sim_state_type *context, int reg));
 190 long int get_ptr_long_mem_da PARAMS((sim_state_type *context, long int addr));
 191 void put_ptr_long_mem_da PARAMS((sim_state_type *context, long int addr, long int ptr));
 192 #endif