Subversion Repositories riscv_vhdl

/**
 * @file
 * @copyright  Copyright 2016 GNSS Sensor Ltd. All right reserved.
 * @author     Sergey Khabarov - sergeykhbr@gmail.com
 * @brief      RISC-V extension-A (Atomic Instructions).
 */
 
#include "api_utils.h"
#include "riscv-isa.h"
#include "cpu_riscv_func.h"
 
namespace debugger {
 
void CpuRiver_Functional::addIsaExtensionA() {
    // TODO
    /*
    addInstr("AMOADD_W",           "00000????????????010?????0101111", NULL, out);
    addInstr("AMOXOR_W",           "00100????????????010?????0101111", NULL, out);
    addInstr("AMOOR_W",            "01000????????????010?????0101111", NULL, out);
    addInstr("AMOAND_W",           "01100????????????010?????0101111", NULL, out);
    addInstr("AMOMIN_W",           "10000????????????010?????0101111", NULL, out);
    addInstr("AMOMAX_W",           "10100????????????010?????0101111", NULL, out);
    addInstr("AMOMINU_W",          "11000????????????010?????0101111", NULL, out);
    addInstr("AMOMAXU_W",          "11100????????????010?????0101111", NULL, out);
    addInstr("AMOSWAP_W",          "00001????????????010?????0101111", NULL, out);
    addInstr("LR_W",               "00010??00000?????010?????0101111", NULL, out);
    addInstr("SC_W",               "00011????????????010?????0101111", NULL, out);
    addInstr("AMOADD_D",           "00000????????????011?????0101111", NULL, out);
    addInstr("AMOXOR_D",           "00100????????????011?????0101111", NULL, out);
    addInstr("AMOOR_D",            "01000????????????011?????0101111", NULL, out);
    addInstr("AMOAND_D",           "01100????????????011?????0101111", NULL, out);
    addInstr("AMOMIN_D",           "10000????????????011?????0101111", NULL, out);
    addInstr("AMOMAX_D",           "10100????????????011?????0101111", NULL, out);
    addInstr("AMOMINU_D",          "11000????????????011?????0101111", NULL, out);
    addInstr("AMOMAXU_D",          "11100????????????011?????0101111", NULL, out);
    addInstr("AMOSWAP_D",          "00001????????????011?????0101111", NULL, out);
    addInstr("LR_D",               "00010??00000?????011?????0101111", NULL, out);
    addInstr("SC_D",               "00011????????????011?????0101111", NULL, out);
    */
    uint64_t isa = portCSR_.read(CSR_misa).val;
    portCSR_.write(CSR_misa, isa | (1LL << ('A' - 'A')));
}
 
}  // namespace debugger