diff --git a/src/machine.rs b/src/machine.rs
index 7cf6fe8..bc53171 100644
--- a/src/machine.rs
+++ b/src/machine.rs
@@ -41,6 +41,6 @@ impl Machine {
 
 #[cfg(test)]
  mod test {
- 	use crate::{_init_machine};
+ 	use super::Machine;
  
  }
diff --git a/src/print.rs b/src/print.rs
index 2435951..3e4eb00 100644
--- a/src/print.rs
+++ b/src/print.rs
@@ -131,7 +131,7 @@ const RISCV_FP_FMVW: u8 = 0x78;
 
 
 const names_op: [&str; 8] = ["add", "sll", "slt", "sltu", "xor", "sr", "or", "and"];
-const names_opi: [&str; 8]  = ["addi", "slli", "slti", "cmpltuii", "xori", "slri", "ori", "andi"];
+const names_opi: [&str; 8]  = ["addi", "slli", "slti", "sltiu", "xori", "slri", "ori", "andi"];
 const names_mul: [&str; 8] = ["mpylo", "mpyhi", "mpyhi", "mpyhi", "divhi", "divhi", "divlo", "divlo"];
 const names_br: [&str; 8] = ["beq", "bne", "", "", "blt", "bge", "bltu", "bgeu"];
 const names_st: [&str; 4] = ["sb", "sh", "sw", "sd"];
@@ -184,7 +184,7 @@ pub fn print(ins: Instruction, pc: i32) -> String { //TODO pc should be u64
             }
         },
         RISCV_LUI => {
-            format!("lui x{}, {:X}", ins.rd.to_string(), ins.imm31_12)
+            format!("lui x{}, 0x{:X}", ins.rd.to_string(), ins.imm31_12)
         },
         RISCV_AUIPC => {
             format!("auipc x{}, {:X}", ins.rd.to_string(), ins.imm31_12)
@@ -261,6 +261,7 @@ pub fn print(ins: Instruction, pc: i32) -> String { //TODO pc should be u64
 
 #[cfg(test)]
 mod test {
+
     use crate::{print, decode};
 
     #[test]
@@ -282,7 +283,43 @@ mod test {
     #[test]
     fn test_opi() {
         let addi = decode::decode(0b0000000000_10001_000_11100_0010011);
+        let slli = decode::decode(0b0000000000_10001_001_11100_0010011);
+        let slti = decode::decode(0b0000000000_10001_010_11100_0010011);
+        let sltiu = decode::decode(0b0000000000_10001_011_11100_0010011);
+        let xori = decode::decode(0b_0000000000010001_100_11100_0010011);
+        let ori = decode::decode(0b00000000000_10001_110_11100_0010011);
         assert_eq!("addi x28, x17, 0", print::print(addi, 0));
+        assert_eq!("slli x28, x17, 0", print::print(slli, 0));
+        assert_eq!("slti x28, x17, 0", print::print(slti, 0));
+        assert_eq!("sltiu x28, x17, 0", print::print(sltiu, 0));
+        assert_eq!("xori x28, x17, 0", print::print(xori, 0));
+        assert_eq!("ori x28, x17, 0", print::print(ori, 0));
+    }
+
+    #[test]
+    fn test_lui() {
+        let lui = decode::decode(0b01110001000011111000_11100_0110111);
+        assert_eq!("lui x28, 0x710F8000", print::print(lui, 0));
+    }
+
+    #[test]
+    fn test_ld() {
+        //                      imm            rs1   f3    rd    opcode
+        let lb = decode::decode(0b010111110000_10001_000_11100_0000011);
+        let lh = decode::decode(0b010111110000_10001_001_11100_0000011);
+        let lw = decode::decode(0b010111110000_10001_010_11100_0000011);
+        let lbu = decode::decode(0b010111110000_10001_100_11100_0000011);
+        let lhu = decode::decode(0b010111110000_10001_101_11100_0000011);
+        let ld = decode::decode(0b010111110000_10001_011_11100_0000011);
+        let lwu = decode::decode(0b010111110000_10001_110_11100_0000011);
+        // TODO: imm négatif produit une erreur
+        assert_eq!("lb x28, 1520(x17)", print::print(lb, 0));
+        assert_eq!("lh x28, 1520(x17)", print::print(lh, 0));
+        assert_eq!("lw x28, 1520(x17)", print::print(lw, 0));
+        assert_eq!("lbu x28, 1520(x17)", print::print(lbu, 0));
+        assert_eq!("lhu x28, 1520(x17)", print::print(lhu, 0));
+        assert_eq!("ld x28, 1520(x17)", print::print(ld, 0));
+        assert_eq!("lwu x28, 1520(x17)", print::print(lwu, 0));
     }
 
 }
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