From e1051b8c95059c28d8215b84dcbe4f41b326cb56 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 11 Nov 2010 09:27:41 +0100 Subject: Baisc instruction handling --- nios2.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 nios2.h (limited to 'nios2.h') diff --git a/nios2.h b/nios2.h new file mode 100644 index 0000000..a299bc3 --- /dev/null +++ b/nios2.h @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2010 Tobias Klauser + * Copyright (C) 2010 chysun2000@gmail.com + * + * This file is part of nios2sim-ng. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef _NIOS2_H_ +#define _NIOS2_H_ + +#include "instruction.h" + +#define NIOS2_GP_REG_COUNT 32 +/* there are really 32, but 16-31 are reserved for future use */ +#define NIOS2_CTRL_REG_COUNT 16 + +struct nios2 { + /* General-Purpose Registers */ + uint32_t gp_regs[NIOS2_GP_REG_COUNT]; + /* Control Registers */ + uint32_t ctrl_regs[NIOS2_CTRL_REG_COUNT]; + /* Program counter */ + uint32_t pc; +}; + +#define PC_INC_NORMAL 0 +#define PC_INC_BY_INSTR 1 + +#endif /* _NIOS2_H_ */ -- cgit v1.2.3-54-g00ecf