update PSEMU/CPU.cpp

Cherrytree56567 · Oct 17, 2023 · bae0dbb · bae0dbb
1 parent a4f9c8a
commit bae0dbb
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/PSEMU/CPU.cpp b/PSEMU/CPU.cpp
@@ -173,6 +173,11 @@ void CPU::decode_execute(Instruction instruction) {
             std::cout << "[CPU] INFO: LBU (I-Type)\n";
             break;
 
+        case (0b001010):
+            op_slti(instruction);
+            std::cout << "[CPU] INFO: SLTI (I-Type)\n";
+            break;
+
         default:
             std::cout << "[CPU] ERROR: Unhandled Instruction \n";
             exit(0);
@@ -633,4 +638,14 @@ void CPU::op_bxx(Instruction instruction) {
     if (test != 0) {
         branch(i);
     }
+}
+
+fn op_slti(&mut self, instruction: Instruction) {
+    uint32_t i = instruction.imm_s();
+    uint32_t s = instruction.rs();
+    uint32_t t = instruction.rt();
+
+    uint32_t v = (regs[s]) < i;
+
+    set_reg(t, v);
 }