Implement ADD

src/instructions.rs

@@ -13,6 +13,11 @@ use crate::{
 
 pub(crate) fn find_and_exec(instr: Instruction, core: &mut Core) -> Option<InstructionResult> {
     match instr.opcode_noncompressed() {
+        0b01100 => match (instr.funct7(), instr.funct3()) {
+            // OP
+            (0b0000000, 0b000) => Some(rvi::add(core, instr)),
+            _ => None,
+        },
         0b00100 => match instr.funct3() {
             // OP_IMM
             0b000 => Some(rvi::addi(core, instr)),