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Annotation of 40BSD/libc/sys/alloca.s, revision 1.1

1.1     ! root        1: # like alloc, but automatic
        !             2: # automatic free in return
        !             3: 
        !             4: .globl _alloca
        !             5: _alloca:
        !             6:        .word   0x0000
        !             7:        subl2   4(ap),sp        # crude allocation
        !             8:        movl    16(fp),r1       # pc
        !             9:        movq    8(fp),ap        # new (old) ap and fp
        !            10:        bicl2   $3,sp           # 4-byte align
        !            11:        addl2   $7*4,sp         # reuse space of mscp
        !            12:        movl    sp,r0           # return value
        !            13:        jmp     (r1)            # funny return

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