Implement JALR, fix JAL, change how some stuff in instructions.rs is expressed

1 files changed, 3 insertions, 6 deletions

diff --git a/src/instructions.rs b/src/instructions.rs
index bf942ee..e72dfb5 100644
--- a/src/instructions.rs
+++ b/src/instructions.rs
@@ -16,11 +16,7 @@ pub(crate) fn find_and_exec(instr: Instruction, core: &mut Core) -> Option<Instr
         0b00100 => match instr.funct3() {
             // OP_IMM
             0b000 => Some(rvi::addi(core, instr)),
-            0b001 => match instr.funct6() {
-                // left-shift immediate
-                0b000000 => Some(rvi::slli(core, instr)),
-                _ => None,
-            },
+            0b001 => (instr.funct6() == 0).then(|| rvi::slli(core, instr)),
             0b111 => Some(rvi::andi(core, instr)),
             _ => None,
         },
@@ -47,8 +43,9 @@ pub(crate) fn find_and_exec(instr: Instruction, core: &mut Core) -> Option<Instr
             _ => None,
         },
         0b01101 => Some(rvi::lui(core, instr)),
-        0b11011 => Some(rvi::jal(core, instr)),
         0b00101 => Some(rvi::auipc(core, instr)),
+        0b11011 => Some(rvi::jal(core, instr)),
+        0b11001 => (instr.funct3() == 0).then(|| rvi::jalr(core, instr)),
         _ => None,
     }
 }