From 3e8b9e6d1051c1d8d7ce13137ffbe51f4f7f53c5 Mon Sep 17 00:00:00 2001
From: grischka <grischka>
Date: Fri, 23 Nov 2007 00:03:03 +0000
Subject: [PATCH] New files: alloca86.S alloca86-bt.S

---
 alloca86-bt.S | 42 ++++++++++++++++++++++++++++++++++++++++++
 alloca86.S    | 27 +++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 alloca86-bt.S
 create mode 100644 alloca86.S

diff --git a/alloca86-bt.S b/alloca86-bt.S
new file mode 100644
index 00000000..50a671ef
--- /dev/null
+++ b/alloca86-bt.S
@@ -0,0 +1,42 @@
+/* ---------------------------------------------- */
+/* alloca86b.S */
+
+.globl __bound___alloca
+
+__bound___alloca:
+    pop     %edx
+    pop     %eax
+    mov     %eax, %ecx
+    add     $3,%eax
+    and     $-4,%eax
+    jz      p6
+
+p4:
+    cmp     $4096,%eax
+    jle     p5
+    sub     $4096,%esp
+    sub     $4096,%eax
+    test    %eax,(%esp)
+    jmp p4
+
+p5:
+    sub     %eax,%esp
+    mov     %esp,%eax
+
+    push    %edx
+    push    %eax
+
+    push    %ecx
+    push    %eax
+    call   __bound_new_region
+    add    $8, %esp
+
+    pop     %eax
+    pop     %edx
+
+p6:
+    push    %edx
+    push    %edx
+    ret
+
+/* ---------------------------------------------- */
diff --git a/alloca86.S b/alloca86.S
new file mode 100644
index 00000000..c8f0c252
--- /dev/null
+++ b/alloca86.S
@@ -0,0 +1,27 @@
+/* ---------------------------------------------- */
+/* alloca86.S */
+
+.globl _alloca
+
+_alloca:
+    pop     %edx
+    pop     %eax
+    add     $3,%eax
+    and     $-4,%eax
+    jz      p3
+p1:
+    cmp     $4096,%eax
+    jle     p2
+    sub     $4096,%esp
+    sub     $4096,%eax
+    test    %eax,(%esp)
+    jmp p1
+p2:
+    sub     %eax,%esp
+    mov     %esp,%eax
+p3:
+    push    %edx
+    push    %edx
+    ret
+
+/* ---------------------------------------------- */