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/ According to the iBCS2 book, signal() has 0x30 in %eax, and the address
/ of a function in %edx.  This function is where a signal handler will
/ return to; it should just adjust the stack pointer, and call $f,$0.
/ Strange but true.
        .globl  signal

sigret:
        addl    $4, %esp
        lcall   $0xf, $0
signal:
        movl    $0x30, %eax
        movl    sigret, %edx
        lcall   $7,$0
        jb      _cerror
/ The iBCS2 book also clears out %eax here, which seems to be broken.
        ret