Implement and test ADD

1 files changed, 5 insertions, 4 deletions

diff --git a/qtmips_machine/core.h b/qtmips_machine/core.h
index d4523c3..5dd5726 100644
--- a/qtmips_machine/core.h
+++ b/qtmips_machine/core.h
@@ -25,6 +25,7 @@ protected:
         Instruction inst; // Loaded instruction
     };
     struct dtDecode {
+        Instruction inst;
         bool mem2reg; // Write memory output to register (instead alu output)
         bool memwrite; // If memory should write input
         bool alubimm; // If b value to alu is immediate value (rt used otherwise)
@@ -34,18 +35,18 @@ protected:
         enum AluOp aluop; // Decoded ALU operation
         std::uint32_t val_rs; // Value from register rs
         std::uint32_t val_rt; // Value from register rt
-        std::uint8_t val_sa; // Value of sa in instruction it self
-        std::uint16_t val_immediate; // Value of immediate in instruction it self
     };
     struct dtExecute {
         bool mem2reg;
-        std::uint32_t val;
+        std::uint8_t rwrite; // Writeback register (multiplexed between rt and rd according to regd)
+        std::uint32_t alu_val; // Result of ALU execution
         // TODO
     };
     struct dtMemory {
         bool mem2reg;
+        std::uint8_t rwrite;
+        std::uint32_t alu_val;
         // TODO
-        std::uint32_t val;
     };
 
     struct dtFetch fetch();