diff --git a/src/crab/thumb/move_compare_add_subtract.cr b/src/crab/thumb/move_compare_add_subtract.cr
index 9924cff..e943d60 100644
--- a/src/crab/thumb/move_compare_add_subtract.cr
+++ b/src/crab/thumb/move_compare_add_subtract.cr
@@ -7,7 +7,7 @@ module THUMB
     case op
     when 0b00 then res = @r[rd] = offset
     when 0b01 then res = sub(@r[rd], offset, true)
-    when 0b10 then res = add(@r[rd], offset, true)
+    when 0b10 then res = @r[rd] = add(@r[rd], offset, true)
     when 0b11 then res = @r[rd] = sub(@r[rd], offset, true)
     else           raise "Invalid move/compare/add/subtract op: #{op}"
     end
diff --git a/src/crab/thumb/multiple_load_store.cr b/src/crab/thumb/multiple_load_store.cr
index fa14e44..5657521 100644
--- a/src/crab/thumb/multiple_load_store.cr
+++ b/src/crab/thumb/multiple_load_store.cr
@@ -1,10 +1,10 @@
 module THUMB
   def thumb_multiple_load_store(instr : Word) : Nil
-    load_from_memory = bit?(instr, 11)
+    load = bit?(instr, 11)
     rb = bits(instr, 8..10)
     list = bits(instr, 0..7)
     address = @r[rb]
-    if load_from_memory # ldmia
+    if load # ldmia
       8.times do |idx|
         if bit?(list, idx)
           @r[idx] = @gba.bus.read_word(address)