diff options
Diffstat (limited to 'src/sim/ex.cc')
| -rw-r--r-- | src/sim/ex.cc | 197 |
1 files changed, 195 insertions, 2 deletions
diff --git a/src/sim/ex.cc b/src/sim/ex.cc index 3a1e92c..50882d2 100644 --- a/src/sim/ex.cc +++ b/src/sim/ex.cc @@ -1,9 +1,202 @@ #include "ex.h" #include "accessor.h" +#include "definitions.h" #include "instrDTO.h" #include "response.h" #include "stage.h" +#include <unordered_map> -EX::EX(Stage *stage) : Stage(stage) { this->id = EXEC; } +// clang-format off +#define INIT_INSTRUCTION(mnemonic, body) \ + {mnemonic, [this](signed int &s1, signed int s2) { \ + body; \ + }} +// clang-format on -InstrDTO *EX::advance(Response p) { return nullptr; } +EX::EX(Stage *stage) : Stage(stage) +{ + this->id = EXEC; + instr_map = { + + /* R type instructions */ + INIT_INSTRUCTION( + ADD, + { + s1 = s1 + s2; + (void)this; + }), + + INIT_INSTRUCTION( + SUB, + { + s1 = s1 - s2; + (void)this; + }), + + INIT_INSTRUCTION( + MUL, + { + s1 = s1 * s2; + (void)this; + }), + + INIT_INSTRUCTION( + QUOT, + { + s1 = s1 / s2; + (void)this; + }), + + INIT_INSTRUCTION( + REM, + { + s1 = s1 % s2; + (void)this; + }), + + INIT_INSTRUCTION( + SFTR, + { + s1 = s1 >> s2; + (void)this; + }), + + INIT_INSTRUCTION( + SFTL, + { + s1 = s1 << s2; + (void)this; + }), + + INIT_INSTRUCTION( + AND, + { + s1 = s1 & s2; + (void)this; + }), + + INIT_INSTRUCTION( + OR, + { + s1 = s1 | s2; + (void)this; + }), + + INIT_INSTRUCTION( + NOT, + { + s1 = ~s1; + (void)s2; + (void)this; + }), + + INIT_INSTRUCTION( + XOR, + { + s1 = s1 ^ s2; + (void)this; + }), + + INIT_INSTRUCTION( + ADDV, + { + (void)s2; + (void)s1; + (void)this; + }), + + INIT_INSTRUCTION( + SUBV, + { + (void)s2; + (void)s1; + (void)this; + }), + + INIT_INSTRUCTION( + MULV, + { + (void)s2; + (void)s1; + (void)this; + }), + + INIT_INSTRUCTION( + DIVV, + { + (void)s2; + (void)s1; + (void)this; + }), + + INIT_INSTRUCTION( + CMP, + { + (s1 > s2) ? this->set_condition(GT, true) + : this->set_condition(GT, false); + (s1 == s2) ? this->set_condition(EQ, true) + : this->set_condition(EQ, false); + }), + + INIT_INSTRUCTION( + CEV, + { + (void)s2; + (void)s1; + (void)this; + }), + + /* I type instructions */ + INIT_INSTRUCTION(LOAD, {}), + + INIT_INSTRUCTION(LOADV, {}), + + INIT_INSTRUCTION(ADDI, {}), + + INIT_INSTRUCTION(SUBI, {}), + + INIT_INSTRUCTION(SFTRI, {}), + + INIT_INSTRUCTION(SFTL, {}), + + INIT_INSTRUCTION(ANDI, {}), + + INIT_INSTRUCTION(ORI, {}), + + INIT_INSTRUCTION(XORI, {}), + + INIT_INSTRUCTION(STORE, {}), + + INIT_INSTRUCTION(STOREV, {}), + + /* J type instructions */ + INIT_INSTRUCTION(JMP, {}), + + INIT_INSTRUCTION(JRL, {}), + + INIT_INSTRUCTION(JAL, {}), + + INIT_INSTRUCTION(BEQ, {}), + + INIT_INSTRUCTION(BGT, {}), + + INIT_INSTRUCTION(BUF, {}), + + INIT_INSTRUCTION(BOF, {}), + + INIT_INSTRUCTION(PUSH, {}), + + INIT_INSTRUCTION(POP, {}), + + /* NOP */ + INIT_INSTRUCTION( + NOP, + { + (void)s2; + (void)s1; + (void)this; + }), + }; +} + +void EX::advance_helper() {} |