From 99364fff03268f3a5b9257430369003c7d91cbfb Mon Sep 17 00:00:00 2001 From: Pavel Pisa Date: Fri, 8 Feb 2019 21:54:50 +0100 Subject: Initial attempt to as operating system syscall handler. Signed-off-by: Pavel Pisa --- qtmips_osemu/ossyscall.h | 67 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 qtmips_osemu/ossyscall.h (limited to 'qtmips_osemu/ossyscall.h') diff --git a/qtmips_osemu/ossyscall.h b/qtmips_osemu/ossyscall.h new file mode 100644 index 0000000..f2c8137 --- /dev/null +++ b/qtmips_osemu/ossyscall.h @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0+ +/******************************************************************************* + * QtMips - MIPS 32-bit Architecture Subset Simulator + * + * Implemented to support following courses: + * + * B35APO - Computer Architectures + * https://cw.fel.cvut.cz/wiki/courses/b35apo + * + * B4M35PAP - Advanced Computer Architectures + * https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start + * + * Copyright (c) 2017-2019 Karel Koci + * Copyright (c) 2019 Pavel Pisa + * + * Faculty of Electrical Engineering (http://www.fel.cvut.cz) + * Czech Technical University (http://www.cvut.cz/) + * + * 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + ******************************************************************************/ + +#ifndef OSSYCALL_H +#define OSSYCALL_H + +#include +#include +#include +#include +#include +#include +#include +#include + +namespace osemu { + +class OsSyscallExceptionHandler : public machine::ExceptionHandler { + Q_OBJECT +public: + bool handle_exception(machine::Core *core, machine::Registers *regs, + machine::ExceptionCause excause, std::uint32_t inst_addr, + std::uint32_t next_addr, std::uint32_t jump_branch_pc, + bool in_delay_slot, std::uint32_t mem_ref_addr); + int syscall_default_handler(std::uint32_t &result, machine::Core *core, + std::uint32_t syscall_num, + std::uint32_t a1, std::uint32_t a2, std::uint32_t a3, + std::uint32_t a4, std::uint32_t a5, std::uint32_t a6, + std::uint32_t a7, std::uint32_t a8); + +}; + +} + +#endif // OSSYCALL_H -- cgit v1.2.3