From abad1c81839420fa60d8923d2332ea003cd73a06 Mon Sep 17 00:00:00 2001 From: Ian C Date: Fri, 25 Jun 2021 19:38:44 +0000 Subject: Added files and got initial support working. ZX81 display needed. --- include/zx81.h | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 include/zx81.h (limited to 'include/zx81.h') diff --git a/include/zx81.h b/include/zx81.h new file mode 100644 index 0000000..770a132 --- /dev/null +++ b/include/zx81.h @@ -0,0 +1,82 @@ +/* + + 3ds81 - Nintendo 3DS ZX81 emulator + + Copyright (C) 2021 Ian Cowburn (ianc@noddybox.co.uk) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see + + ------------------------------------------------------------------------- + + Provides the emulation for the ZX81 + +*/ + +#ifndef DS81_ZX81_H +#define DS81_ZX81_H + +#include + +#include "framebuffer.h" +#include "z80.h" +#include "keyboard.h" + + +/* Initialise the ZX81 +*/ +void ZX81Init(Z80 *z80); + +/* Render the display +*/ +void ZX81RenderDisplay(Framebuffer *fb); + +/* Handle keypresses +*/ +void ZX81HandleKey(SoftKey k, int is_pressed); + +/* Enable fopen() loading of tape files +*/ +void ZX81EnableFileSystem(int enable); + +/* Set a file to load from tape +*/ +void ZX81SetTape(const Z80Byte *image, int len); + +/* Reset the 81 +*/ +void ZX81Reset(Z80 *z80); + +/* Tell the 81 that config may have changed. +*/ +void ZX81Reconfigure(void); + +/* Interfaces for the Z80 +*/ +Z80Byte ZX81ReadMem(Z80 *z80, Z80Word addr); +void ZX81WriteMem(Z80 *z80, Z80Word addr, Z80Byte val); +Z80Byte ZX81ReadPort(Z80 *z80, Z80Word port); +void ZX81WritePort(Z80 *z80, Z80Word port, Z80Byte val); + +#define ZX81ReadDisassem ZX81ReadMem + +/* Interfaces to allows the ZX81 to save/load itself as a snapshot to/from + a stream. +*/ +void ZX81SaveSnapshot(FILE *fp); +void ZX81LoadSnapshot(FILE *fp); + +#endif + + +/* END OF FILE */ -- cgit v1.2.3