Dave Van Wagner / Mbed OS c-simple-emu6502-cbm

6502 emulator for Commodore 64 ROMs, serial terminal edition for MBED. Recommend terminal echo on, line edit on, caps lock, 115200bps, implicit carriage return on newline, currently non-buffered so don't paste lots of stuff

More details at:

[https://github.com/davervw] [https://techwithdave.davevw.com/2020/03/simple-emu-c64.html]

emu6502.h@9:b4293b01083b, 2020-04-17 (annotated)

Committer:
davervw
Date:
Fri Apr 17 09:15:50 2020 +0000
Revision:
9:b4293b01083b
Parent:
7:f49fa56672d8 
comment updates, and implemented optional #define LOCAL_LOAD // for loading from Mbed filesystem

Who changed what in which revision?

UserRevisionLine numberNew contents of line
davervw 0:90de1cbc8a5f 1 // emu6502.h - Emu6502 - MOS6502 Emulator
davervw 0:90de1cbc8a5f 2 //
davervw 0:90de1cbc8a5f 3 ////////////////////////////////////////////////////////////////////////////////
davervw 0:90de1cbc8a5f 4 //
davervw 0:90de1cbc8a5f 5 // c-simple-emu-cbm (C Portable Version)
davervw 7:f49fa56672d8 6 // C64/6502 Emulator for Terminal Console
davervw 0:90de1cbc8a5f 7 //
davervw 0:90de1cbc8a5f 8 // MIT License
davervw 0:90de1cbc8a5f 9 //
davervw 7:f49fa56672d8 10 // Copyright(c) 2020 by David R. Van Wagner
davervw 0:90de1cbc8a5f 11 // davevw.com
davervw 0:90de1cbc8a5f 12 //
davervw 0:90de1cbc8a5f 13 // Permission is hereby granted, free of charge, to any person obtaining a copy
davervw 0:90de1cbc8a5f 14 // of this software and associated documentation files (the "Software"), to deal
davervw 0:90de1cbc8a5f 15 // in the Software without restriction, including without limitation the rights
davervw 0:90de1cbc8a5f 16 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
davervw 0:90de1cbc8a5f 17 // copies of the Software, and to permit persons to whom the Software is
davervw 0:90de1cbc8a5f 18 // furnished to do so, subject to the following conditions:
davervw 0:90de1cbc8a5f 19 //
davervw 0:90de1cbc8a5f 20 // The above copyright notice and this permission notice shall be included in all
davervw 0:90de1cbc8a5f 21 // copies or substantial portions of the Software.
davervw 0:90de1cbc8a5f 22 //
davervw 0:90de1cbc8a5f 23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
davervw 0:90de1cbc8a5f 24 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
davervw 0:90de1cbc8a5f 25 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
davervw 0:90de1cbc8a5f 26 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
davervw 0:90de1cbc8a5f 27 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
davervw 0:90de1cbc8a5f 28 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
davervw 0:90de1cbc8a5f 29 // SOFTWARE.
davervw 0:90de1cbc8a5f 30 //
davervw 0:90de1cbc8a5f 31 ////////////////////////////////////////////////////////////////////////////////
davervw 0:90de1cbc8a5f 32
davervw 0:90de1cbc8a5f 33 #pragma once
davervw 0:90de1cbc8a5f 34
davervw 0:90de1cbc8a5f 35 typedef signed char sbyte;
davervw 0:90de1cbc8a5f 36 typedef unsigned char byte;
davervw 0:90de1cbc8a5f 37 //typedef unsigned char bool;
davervw 0:90de1cbc8a5f 38 typedef unsigned short ushort;
davervw 0:90de1cbc8a5f 39 #define false 0
davervw 0:90de1cbc8a5f 40 #define true 1
davervw 0:90de1cbc8a5f 41
davervw 0:90de1cbc8a5f 42 extern byte A;
davervw 0:90de1cbc8a5f 43 extern byte X;
davervw 0:90de1cbc8a5f 44 extern byte Y;
davervw 0:90de1cbc8a5f 45 extern byte S;
davervw 0:90de1cbc8a5f 46 extern bool N;
davervw 0:90de1cbc8a5f 47 extern bool V;
davervw 0:90de1cbc8a5f 48 extern bool B;
davervw 0:90de1cbc8a5f 49 extern bool D;
davervw 0:90de1cbc8a5f 50 extern bool I;
davervw 0:90de1cbc8a5f 51 extern bool Z;
davervw 0:90de1cbc8a5f 52 extern bool C;
davervw 0:90de1cbc8a5f 53 extern ushort PC;
davervw 0:90de1cbc8a5f 54
davervw 0:90de1cbc8a5f 55 extern bool trace;
davervw 0:90de1cbc8a5f 56 extern bool step;
davervw 0:90de1cbc8a5f 57
davervw 0:90de1cbc8a5f 58 extern void ResetRun(bool (*ExecutePatch)(void));
davervw 0:90de1cbc8a5f 59 extern void Execute(ushort addr, bool (*ExecutePatch)(void));
davervw 0:90de1cbc8a5f 60 extern void Push(int value);
davervw 0:90de1cbc8a5f 61 extern byte Pop(void);
davervw 0:90de1cbc8a5f 62 extern void DisassembleLong(ushort addr, bool *p_conditional, byte *p_bytes, ushort *p_addr2, char *dis, int dis_size, char *line, int line_size);
davervw 0:90de1cbc8a5f 63 extern void DisassembleShort(ushort addr, bool *p_conditional, byte *p_bytes, ushort *p_addr2, char *dis, int dis_size);
davervw 0:90de1cbc8a5f 64 extern byte LO(ushort value);
davervw 0:90de1cbc8a5f 65 extern byte HI(ushort value);
davervw 0:90de1cbc8a5f 66
davervw 0:90de1cbc8a5f 67 extern void SetMemory(ushort addr, byte value);
davervw 0:90de1cbc8a5f 68 extern byte GetMemory(ushort addr);
davervw 0:90de1cbc8a5f 69 extern bool ExecutePatch(void);