File: fungr.c

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/*
\funcref{fun\_gr}{void fun\_gr ()}
    {}
    {}
    {push(), compare(), pop()}
    {}
    {fungr.c}
    {
        Function {\em fun\_gr()} is called when opcode {\em op\_gr} is read.
        This function pops two variables, calls {\em compare()} to compare the
        values, and pushes the result of the comparison. The two compared
        variables are discarded.
    }
*/

#include "icm-exec.h"

void fun_gr ()
{
    VAR_
        lval,
        rval;

    rval = pop ();
    lval = pop ();
    compare (lval, rval);
    stack [sp].vu.intval = (stack [sp].vu.intval > 0);

    discard (lval);
    discard (rval);
}