File: frame.c

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/*
\funcref{fun\_frame}{void fun\_frame ()}
    {}
    {}
    {push(), newvar(), getopcode()}
    {fun\_ret()}
    {funframe.c}
    {

        This function is executed when an {\em op\_frame} opcode is
        encountered. Following this opcode, the number of local variables is
        expected. When room for local variables should be made, a series of
        variable types is expected.

        The function imitates the assembler opcodes {\em push bp; mov bp, sp}
        by pushing an {\em e\_int} variable with the value of {\em bp} as {\em
        vu.intval} field. If local variables should be created, then {\em
        newvar()} is called to create a variable (the variable type is read
        from the binary makefile) and {\em push()} is called to make room for
        the variable.

    }
*/

#include "opcodefun.ih"

void fun_frame()
{
    size_t nlocals = getopcode(infile);
    size_t idx;

    for (idx = 0; idx < nlocals; ++idx)
    {
        VAR_ varFrame = *constructor((E_TYPE_)getopcode(infile));
        push(&varFrame);
        destructor(&varFrame);
    }
}