1 files changed, 0 insertions, 84 deletions
diff --git a/prototypes/tile/9.mu b/prototypes/tile/9.mu
index e7289fc2..69360b2e 100644
--- a/prototypes/tile/9.mu
+++ b/prototypes/tile/9.mu
@@ -304,87 +304,3 @@ fn draw-vertical-line row1: int, row2: int, col: int {
     loop
   }
 }
-
-# slow, iterative divide instruction
-# preconditions: _nr >= 0, _dr > 0
-fn try-divide _nr: int, _dr: int -> result/eax: int {
-  # x = next power-of-2 multiple of _dr after _nr
-  var x/ecx: int <- copy 1
-  {
-#?     print-int32-hex 0, x
-#?     print-string 0, "\n"
-    var tmp/edx: int <- copy _dr
-    tmp <- multiply x
-    compare tmp, _nr
-    break-if->
-    x <- shift-left 1
-    loop
-  }
-#?   print-string 0, "--\n"
-  # min, max = x/2, x
-  var max/ecx: int <- copy x
-  var min/edx: int <- copy max
-  min <- shift-right 1
-  # narrow down result between min and max
-  var i/eax: int <- copy min
-  {
-#?     print-int32-hex 0, i
-#?     print-string 0, "\n"
-    var foo/ebx: int <- copy _dr
-    foo <- multiply i
-    compare foo, _nr
-    break-if->
-    i <- increment
-    loop
-  }
-  result <- copy i
-  result <- decrement
-#?   print-string 0, "=> "
-#?   print-int32-hex 0, result
-#?   print-string 0, "\n"
-}
-
-fn test-try-divide-1 {
-  var result/eax: int <- try-divide 0, 2
-  check-ints-equal result, 0, "F - try-divide-1\n"
-}
-
-fn test-try-divide-2 {
-  var result/eax: int <- try-divide 1, 2
-  check-ints-equal result, 0, "F - try-divide-2\n"
-}
-
-fn test-try-divide-3 {
-  var result/eax: int <- try-divide 2, 2
-  check-ints-equal result, 1, "F - try-divide-3\n"
-}
-
-fn test-try-divide-4 {
-  var result/eax: int <- try-divide 4, 2
-  check-ints-equal result, 2, "F - try-divide-4\n"
-}
-
-fn test-try-divide-5 {
-  var result/eax: int <- try-divide 6, 2
-  check-ints-equal result, 3, "F - try-divide-5\n"
-}
-
-fn test-try-divide-6 {
-  var result/eax: int <- try-divide 9, 3
-  check-ints-equal result, 3, "F - try-divide-6\n"
-}
-
-fn test-try-divide-7 {
-  var result/eax: int <- try-divide 0xc, 4
-  check-ints-equal result, 3, "F - try-divide-7\n"
-}
-
-fn test-try-divide-8 {
-  var result/eax: int <- try-divide 0x1b, 3  # 27/3
-  check-ints-equal result, 9, "F - try-divide-8\n"
-}
-
-fn test-try-divide-9 {
-  var result/eax: int <- try-divide 0x1c, 3  # 28/3
-  check-ints-equal result, 9, "F - try-divide-9\n"
-}