From ea5e81bd6a3376232bf4747b2fa2e0a91c19b337 Mon Sep 17 00:00:00 2001
From: grischka <grischka>
Date: Sat, 18 Apr 2009 14:28:45 +0200
Subject: new subdirs: include, lib, tests

---
 lib/alloca86.S | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 lib/alloca86.S

(limited to 'lib/alloca86.S')

diff --git a/lib/alloca86.S b/lib/alloca86.S
new file mode 100644
index 0000000..a60b140
--- /dev/null
+++ b/lib/alloca86.S
@@ -0,0 +1,33 @@
+/* ---------------------------------------------- */
+/* alloca86.S */
+
+#include "config.h"
+
+.globl _alloca
+
+_alloca:
+    pop     %edx
+    pop     %eax
+    add     $3,%eax
+    and     $-4,%eax
+    jz      p3
+
+#ifdef TCC_TARGET_PE
+p1:
+    cmp     $4096,%eax
+    jle     p2
+    sub     $4096,%esp
+    sub     $4096,%eax
+    test    %eax,(%esp)
+    jmp p1
+p2:
+#endif
+
+    sub     %eax,%esp
+    mov     %esp,%eax
+p3:
+    push    %edx
+    push    %edx
+    ret
+
+/* ---------------------------------------------- */
-- 
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