Return to alloca.s CVS log

Up to [CSRG BSD Unix] / 41BSD / libc / sys

Annotation of 41BSD/libc/sys/alloca.s, revision 1.1.1.1

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

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.