// Simulator for the RISC-V[ECTOR] mini-ISA
// Copyright (C) 2025 Siddarth Suresh
// Copyright (C) 2025 bdunahu

// 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 3 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, see <https://www.gnu.org/licenses/>.

#include "instr.h"
#include <functional>
#include <map>
#include <unordered_map>

namespace instr
{
const std::unordered_map<unsigned int, Mnemonic> mnemonic_map = {
	{0b0000100, ADD},	 {0b0001000, SUB},	 {0b0001100, MUL},
	{0b0010000, QUOT},	 {0b0010100, REM},	 {0b0011000, SFTR},
	{0b0011100, SFTL},	 {0b0100000, AND},	 {0b0100100, OR},
	{0b0101000, NOT},	 {0b0101100, XOR},	 {0b0110000, ADDV},
	{0b0110100, SUBV},	 {0b0111000, MULV},	 {0b0111100, DIVV},
	{0b1000000, CMP},	 {0b1000100, CEV},	 {0b000101, LOAD},
	{0b001001, LOADV},	 {0b0001101, ADDI},	 {0b0010001, SUBI},
	{0b0010101, SFTRI},	 {0b0011001, SFTLI}, {0b0011101, ANDI},
	{0b0100001, ORI},	 {0b0100101, XORI},	 {0b0101001, STORE},
	{0b0101101, STOREV}, {0b0000110, JMP},	 {0b0001010, JRL},
	{0b0001110, JAL},	 {0b0010010, BEQ},	 {0b0010110, BGT},
	{0b0011010, BUF},	 {0b0011110, BOF},	 {0b0100010, PUSH},
	{0b0100110, POP},	 {0b0101010, RET},
};

FieldType get_field_types(Mnemonic m)
{
	if (m == ADDV || m == SUBV || m == MULV || m == DIVV || m == CEV) {
		return R_VECT;
	} else if (m == STOREV || m == LOADV) {
		return I_VECT;
	} else {
		return SI_INT;
	}
}
} // namespace instr