7297 - tile: use floats everywhere

1 files changed, 63 insertions, 0 deletions

diff --git a/apps/tile/float-stack.mu b/apps/tile/float-stack.mu
new file mode 100644
index 00000000..b6585192
--- /dev/null
+++ b/apps/tile/float-stack.mu
@@ -0,0 +1,63 @@
+type float-stack {
+  data: (handle array float)
+  top: int
+}
+
+fn initialize-float-stack _self: (addr float-stack), n: int {
+  var self/esi: (addr float-stack) <- copy _self
+  var d/edi: (addr handle array float) <- get self, data
+  populate d, n
+  var top/eax: (addr int) <- get self, top
+  copy-to *top, 0
+}
+
+fn clear-float-stack _self: (addr float-stack) {
+  var self/esi: (addr float-stack) <- copy _self
+  var top/eax: (addr int) <- get self, top
+  copy-to *top, 0
+}
+
+fn push-float-stack _self: (addr float-stack), _val: float {
+  var self/esi: (addr float-stack) <- copy _self
+  var top-addr/ecx: (addr int) <- get self, top
+  var data-ah/edx: (addr handle array float) <- get self, data
+  var data/eax: (addr array float) <- lookup *data-ah
+  var top/edx: int <- copy *top-addr
+  var dest-addr/edx: (addr float) <- index data, top
+  var val/xmm0: float <- copy _val
+  copy-to *dest-addr, val
+  add-to *top-addr, 1
+}
+
+fn pop-float-stack _self: (addr float-stack) -> _/xmm0: float {
+  var self/esi: (addr float-stack) <- copy _self
+  var top-addr/ecx: (addr int) <- get self, top
+  {
+    compare *top-addr, 0
+    break-if->
+    return 0
+  }
+  subtract-from *top-addr, 1
+  var data-ah/edx: (addr handle array float) <- get self, data
+  var data/eax: (addr array float) <- lookup *data-ah
+  var top/edx: int <- copy *top-addr
+  var result-addr/eax: (addr float) <- index data, top
+  return *result-addr
+}
+
+fn float-stack-empty? _self: (addr float-stack) -> _/eax: boolean {
+  var self/esi: (addr float-stack) <- copy _self
+  var top-addr/eax: (addr int) <- get self, top
+  compare *top-addr, 0
+  {
+    break-if-!=
+    return 1  # true
+  }
+  return 0  # false
+}
+
+fn float-stack-length _self: (addr float-stack) -> _/eax: int {
+  var self/esi: (addr float-stack) <- copy _self
+  var top-addr/eax: (addr int) <- get self, top
+  return *top-addr
+}