emu6502.h

00001 // emu6502.h - MOS6502 Emulator
00002 //
00003 ////////////////////////////////////////////////////////////////////////////////
00004 //
00005 // C64-stm429_discovery
00006 // C64/6502 Emulator targeting STM32F429 LCD/USBHOST
00007 // [ported from c-simple-emu-cbm (C Portable Version - for console)]
00008 //
00009 // MIT License
00010 //
00011 // Copyright(c) 2020 by David R.Van Wagner
00012 // davevw.com
00013 //
00014 // Permission is hereby granted, free of charge, to any person obtaining a copy
00015 // of this software and associated documentation files (the "Software"), to deal
00016 // in the Software without restriction, including without limitation the rights
00017 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00018 // copies of the Software, and to permit persons to whom the Software is
00019 // furnished to do so, subject to the following conditions:
00020 //
00021 // The above copyright notice and this permission notice shall be included in all
00022 // copies or substantial portions of the Software.
00023 //
00024 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00025 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00026 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
00027 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00028 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00029 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00030 // SOFTWARE.
00031 //
00032 ////////////////////////////////////////////////////////////////////////////////
00033 
00034 #pragma once
00035 
00036 typedef signed char sbyte;
00037 typedef unsigned char byte;
00038 //typedef unsigned char bool;
00039 typedef unsigned short ushort;
00040 #define false 0
00041 #define true 1
00042 
00043 extern byte A;
00044 extern byte X;
00045 extern byte Y;
00046 extern byte S;
00047 extern bool N;
00048 extern bool V;
00049 extern bool B;
00050 extern bool D;
00051 extern bool I;
00052 extern bool Z;
00053 extern bool C;
00054 extern ushort PC;
00055 
00056 extern bool trace;
00057 extern bool step;
00058 
00059 extern void ResetRun(bool (*ExecutePatch)(void));
00060 extern void Execute(ushort addr, bool (*ExecutePatch)(void));
00061 extern void Push(int value);
00062 extern byte Pop(void);
00063 extern void PHP();
00064 extern void DisassembleLong(ushort addr, bool *p_conditional, byte *p_bytes, ushort *p_addr2, char *dis, int dis_size, char *line, int line_size);
00065 extern void DisassembleShort(ushort addr, bool *p_conditional, byte *p_bytes, ushort *p_addr2, char *dis, int dis_size);
00066 extern byte LO(ushort value);
00067 extern byte HI(ushort value);
00068 
00069 extern void SetMemory(ushort addr, byte value);
00070 extern byte GetMemory(ushort addr);
00071 extern bool ExecutePatch(void);
00072