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#include "instr.h"
#include <functional>
#include <map>
#include <unordered_map>
// clang-format off
#define INIT_INSTRUCTION(mnemonic, body) \
{mnemonic, [](signed int &s1, signed int &s2, signed int &s3) { \
body; \
}}
// clang-format on
namespace instr
{
// clang-format off
const std::unordered_map<Mnemonic, std::function<void(signed int &s1, signed int &s2, signed int &s3)>>
// clang-format on
instr_map = {
/* R type instructions */
// TODO these need to be WRAPPED with a function that sets overflow.
// future note to self, if these are more than 2 lines each, you're
// doing it wrong
INIT_INSTRUCTION(ADD, s3 = s1 + s2;),
INIT_INSTRUCTION(SUB, s3 = s1 - s2;),
/* I type instructions */
/* J type instructions */
/* NOP */
INIT_INSTRUCTION(NOP, (void)s3; (void)s2; (void)s1;),
};
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}, {0b0011101, SFTLI}, {0b0100001, ANDI},
{0b0100101, ORI}, {0b0101001, XORI}, {0b0101101, STORE},
{0b0110001, STOREV}, {0b0000101, CEV}, {0b0000101, LOAD},
{0b0001001, LOADV}, {0b0001001, LOADV}, {0b0000110, JMP},
{0b0001010, JRL}, {0b0001110, JAL}, {0b0010010, BEQ},
{0b0010110, BGT}, {0b0011010, BUF}, {0b0011110, BOF},
{0b0100010, PUSH}, {0b0100110, POP},
};
} // namespace instr
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