diff options
| author | bd <bdunahu@operationnull.com> | 2025-03-30 19:55:57 -0400 |
|---|---|---|
| committer | bd <bdunahu@operationnull.com> | 2025-03-30 19:55:57 -0400 |
| commit | ea5ce07be45c1a2d953e44ac122fbc96d18fc658 (patch) | |
| tree | cf9833dbdcb5c50d72076cb6f8e4a9bdb3994c83 /src/sim/ex.cc | |
| parent | ebeb29d1b87c533c1e80e86ceed9ddc40e4d2cb2 (diff) | |
All I-type instructions
Diffstat (limited to 'src/sim/ex.cc')
| -rw-r--r-- | src/sim/ex.cc | 84 |
1 files changed, 71 insertions, 13 deletions
diff --git a/src/sim/ex.cc b/src/sim/ex.cc index d177bc9..b4e86ac 100644 --- a/src/sim/ex.cc +++ b/src/sim/ex.cc @@ -147,27 +147,84 @@ EX::EX(Stage *stage) : Stage(stage) }), /* I type instructions */ - INIT_INSTRUCTION(LOAD, {}), + INIT_INSTRUCTION( + LOAD, + { + s1 = s1 + s2; + (void)this; + }), - INIT_INSTRUCTION(LOADV, {}), + INIT_INSTRUCTION( + LOADV, + { + (void)s2; + (void)s1; + (void)this; + }), - INIT_INSTRUCTION(ADDI, {}), + INIT_INSTRUCTION( + ADDI, + { + s1 = s1 + s2; + (void)this; + }), - INIT_INSTRUCTION(SUBI, {}), + INIT_INSTRUCTION( + SUBI, + { + s1 = s1 - s2; + (void)this; + }), - INIT_INSTRUCTION(SFTRI, {}), + INIT_INSTRUCTION( + SFTRI, + { + s1 = s1 >> s2; + (void)this; + }), - INIT_INSTRUCTION(SFTL, {}), + INIT_INSTRUCTION( + SFTLI, + { + s1 = s1 << s2; + (void)this; + }), - INIT_INSTRUCTION(ANDI, {}), + INIT_INSTRUCTION( + ANDI, + { + s1 = s1 & s2; + (void)this; + }), - INIT_INSTRUCTION(ORI, {}), + INIT_INSTRUCTION( + ORI, + { + s1 = s1 | s2; + (void)this; + }), - INIT_INSTRUCTION(XORI, {}), + INIT_INSTRUCTION( + XORI, + { + s1 = s1 ^ s2; + (void)this; + }), - INIT_INSTRUCTION(STORE, {}), + INIT_INSTRUCTION( + STORE, + { + s1 = s1 + s2; + (void)this; + }), - INIT_INSTRUCTION(STOREV, {}), + INIT_INSTRUCTION( + STOREV, + { + (void)s2; + (void)s1; + (void)this; + }), /* J type instructions */ INIT_INSTRUCTION(JMP, {}), @@ -199,10 +256,11 @@ EX::EX(Stage *stage) : Stage(stage) }; } -void EX::advance_helper() { +void EX::advance_helper() +{ signed int s1, s2; Mnemonic m; - + // it may be good to ensure we are not doing // work that has already been done if (this->curr_instr) { |