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1 /* v09.h
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2 This file is part of the 6809 simulator v09
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3
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4 created 1994 by L.C. Benschop.
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5 copyleft (c) 1994-2014 by the sbc09 team, see AUTHORS for more details.
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6 license: GNU General Public License version 2, see LICENSE for more details.
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7
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8 */
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9
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10 typedef unsigned char Byte;
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11 typedef unsigned short Word;
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12
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13 /* 6809 registers */
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14 engine Byte ccreg,dpreg;
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15 engine Word xreg,yreg,ureg,sreg,ureg,pcreg;
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16
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17 engine Byte d_reg[2];
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18 extern Word *dreg;
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19 extern Byte *breg,*areg;
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20
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21 engine long memsize;
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22 engine long rommemsize;
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23 engine Byte * mmu;
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24 /* 6809 memory space */
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25 #ifdef USE_MMU
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26 engine Byte * phymem;
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27 engine Byte * mem;
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28 #else
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29 #ifdef MSDOS
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30 engine Byte * mem;
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31 #else
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32 engine Byte mem[65536];
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33 #endif
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34 #endif
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35
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36 engine volatile int tracing,attention,escape,irq;
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37 engine Word tracehi,tracelo;
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38 engine char escchar;
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39 engine int timer;
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40 engine FILE *tracefile;
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41
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3
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42 #ifndef IOPAGE
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43 #define IOPAGE 0xe000
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3
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44 #endif
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45
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46 void interpr(void);
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47 void do_exit(void);
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48 int do_input(int);
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49 void set_term(char);
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50 void do_trace(FILE *);
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51 void do_output(int,int);
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52 void do_escape(void);
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53
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54
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