#include "Registers.h" Registers::Registers() { memset(register_bank, 0, sizeof(int32_t)*32); // 32 registers of 32 bits each perf = Performance::getInstance(); register_bank[sp] = 1024-1; // SP points to end of memory register_PC = 0x10000; // default _start address } void Registers::dump(void) { cout << "************************************" << endl; cout << "Registers dump" << dec << endl; #if 0 cout << "x0 (zero): " << register_bank[0] << "\t"; cout << "x1 (ra): " << register_bank[1] << "\t"; cout << "x2 (sp): " << register_bank[2] << "\t"; cout << "x3 (gp): " << register_bank[3] << "\t" << endl; cout << "x4 (tp): " << register_bank[4] << "\t"; cout << "x5 (t0): " << register_bank[5] << "\t"; cout << "x6 (t1): " << register_bank[6] << "\t"; cout << "x7 (t2): " << register_bank[7] << "\t" << endl; cout << "x8 (s0/fp): " << register_bank[8] << "\t"; cout << "x9 (s1): " << register_bank[9] << "\t"; cout << "x10 (a0): " << register_bank[10] << "\t"; cout << "x11 (a1): " << register_bank[11] << "\t" << endl; cout << "x12 (a2): " << register_bank[12] << "\t"; cout << "x13 (a3): " << register_bank[13] << "\t"; cout << "x14 (a4): " << register_bank[14] << "\t"; cout << "x15 (a5): " << register_bank[15] << "\t" << endl; cout << "x16 (a6): " << register_bank[16] << "\t"; cout << "x17 (a7): " << register_bank[17] << "\t"; cout << "x18 (s2): " << register_bank[18] << "\t"; cout << "x19 (s3): " << register_bank[19] << "\t" << endl; #else for(int i=0;i<32;i++) { cout << "R" << dec << i << ": " << register_bank[i] << "\t"; if (i % 4 == 3) { cout << endl; } } #endif cout << "PC: 0x" << hex << register_PC << endl; cout << "************************************" << endl; } void Registers::setValue(int reg_num, int32_t value) { if ((reg_num != 0) && (reg_num < 32)) { register_bank[reg_num] = value; perf->registerWrite(); } } int32_t Registers::getValue(int reg_num) { if ((reg_num >= 0) && (reg_num < 32)){ perf->registerRead(); return register_bank[reg_num]; } else { return 0xFFFFFFFF; } } uint32_t Registers::getPC() { return register_PC; } void Registers::setPC(uint32_t new_pc) { register_PC = new_pc; }