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[WIP] started to add TinyCC backend

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Eyck Jentzsch
2020-01-09 19:37:17 +01:00
parent 8b9775e06b
commit 116ed9bb5c
20 changed files with 6104 additions and 48 deletions
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src/iss/mnrv32.cpp Normal file
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/*******************************************************************************
* Copyright (C) 2017, 2018 MINRES Technologies GmbH
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*******************************************************************************/
#include "util/ities.h"
#include <util/logging.h>
#include <elfio/elfio.hpp>
#include <iss/arch/mnrv32.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <ihex.h>
#ifdef __cplusplus
}
#endif
#include <cstdio>
#include <cstring>
#include <fstream>
using namespace iss::arch;
constexpr std::array<const char*, 33> iss::arch::traits<iss::arch::mnrv32>::reg_names;
constexpr std::array<const char*, 33> iss::arch::traits<iss::arch::mnrv32>::reg_aliases;
constexpr std::array<const uint32_t, 39> iss::arch::traits<iss::arch::mnrv32>::reg_bit_widths;
constexpr std::array<const uint32_t, 40> iss::arch::traits<iss::arch::mnrv32>::reg_byte_offsets;
mnrv32::mnrv32() {
reg.icount = 0;
}
mnrv32::~mnrv32() = default;
void mnrv32::reset(uint64_t address) {
for(size_t i=0; i<traits<mnrv32>::NUM_REGS; ++i) set_reg(i, std::vector<uint8_t>(sizeof(traits<mnrv32>::reg_t),0));
reg.PC=address;
reg.NEXT_PC=reg.PC;
reg.trap_state=0;
reg.machine_state=0x3;
reg.icount=0;
}
uint8_t *mnrv32::get_regs_base_ptr() {
return reinterpret_cast<uint8_t*>(&reg);
}
mnrv32::phys_addr_t mnrv32::virt2phys(const iss::addr_t &pc) {
return phys_addr_t(pc); // change logical address to physical address
}