/* ---------------------------------------------- */
/* alloca86.S */

#ifdef __leading_underscore
# define _(s) _##s
#else
# define _(s) s
#endif

.globl _(alloca)
_(alloca):
    pop     %edx
    pop     %eax
    add     $3,%eax
    and     $-4,%eax
    jz      p3

#ifdef _WIN32
p1:
    cmp     $4096,%eax
    jbe     p2
    test    %eax,-4096(%esp)
    sub     $4096,%esp
    sub     $4096,%eax
    jmp p1
p2:
#endif

    sub     %eax,%esp
    mov     %esp,%eax
p3:
    push    %edx
    push    %edx
    ret

/* ---------------------------------------------- */