sdcc-extra/emu/rrgb/z80.h

   1 /* Miscellaneous definitions for xz80, copyright (C) 1994 Ian Collier.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  16  */
  17
  18 #define Z80_quit  1
  19 #define Z80_NMI   2
  20 #define Z80_reset 3
  21 #define Z80_load  4
  22 #define Z80_save  5
  23 #define Z80_log   6
  24
  25 #define SEG_SIZE 8192
  26 #define NUM_SEGS (65536/SEG_SIZE)
  27
  28 #define DMAP            1
  29 #define DPROFILE        2
  30 #define DSTARTDEBUG     4
  31 #define DSOCKETS        8
  32 #define DTIMERINT       16
  33 #define DLIMITEDRUN     32
  34
  35 #ifdef SEG
  36 extern unsigned char *segments[];
  37 extern char bank_file_name[];
  38 void switchBank( int segment, unsigned bank );
  39 #endif
  40
  41 void profile(void);
  42
  43 extern unsigned char mem[];
  44 extern int memattr[];
  45 extern int hsize,vsize;
  46 extern volatile int interrupted;
  47 extern int forceok;
  48 extern unsigned short breakpoints[5];
  49 extern unsigned long tstates;
  50 extern int flags;
  51
  52 extern int mainloop(int flags);
  53 int handle_sys(int scall, int parameter);
  54
  55 typedef struct sfunction mfunction;
  56 typedef struct sfunction *pmfunction;
  57
  58 struct sfunction {
  59         int addr;
  60         int num_calls;
  61         int tstates;
  62         int start;
  63         pmfunction next;
  64 };
  65
  66 extern pmfunction fun_first;
  67
  68 #define fetch(x) (mem[x])
  69 #define fetch2(x) ((mem[x+1]<<8)|mem[x])
  70
  71 #define store( addr, value ) mem[addr]=value;
  72
  73 #define store2b(addr,hi,lo) \
  74         mem[addr]=(lo);\
  75         mem[addr+1]=(hi);
  76
  77 #define store2(x,y) store2b(x,(y)>>8,(y)&255)
  78
  79 #ifdef __GNUC__
  80 static void inline storefunc(unsigned short ad,unsigned char b){
  81    store(ad,b);
  82 }
  83
  84 #undef store
  85 #define store(x,y) storefunc(x,y)
  86
  87 static void inline store2func(unsigned short ad,unsigned char b1,unsigned char b2){
  88    store2b(ad,b1,b2);
  89 }
  90 #undef store2b
  91 #define store2b(x,hi,lo) store2func(x,hi,lo)
  92 #endif
  93
  94 #define bc ((b<<8)|c)
  95 #define de ((d<<8)|e)
  96 #define hl ((h<<8)|l)