===============================
Single Linked Lists and Quiz 15						[TOC]
===============================

Implement the following C program in assembly:

---- CODE (file=session15/list/list.c, fold) -----------------------------------
#include <stdio.h>

struct ListNode
{
    struct ListNode *next;
    char	    id;
};

struct ListNode c, a, b;

int printList(const struct ListNode *listNode);

int
main(void)
{
    a.id = 'a';
    a.next = &b;

    b.id = 'b';
    b.next = &c;

    c.id = 'c';
    c.next = 0;

    printList(&a);

    putchar('\n');
}

int
printList(const struct ListNode *listNode)
{
    for (; listNode; listNode = listNode->next) {
	putchar(listNode->id);
    }

    return 1;	// because we need to return something
}

--------------------------------------------------------------------------------

Of course the function call _putchar()_ can be realized with a _putc_
instruction.

You program should generate the same output as the assmbler program created by
gcc:

---- SHELL (path=session15/list) -----------------------------------------------
gcc list.c
./a.out
--------------------------------------------------------------------------------

Or ucc:

---- SHELL (path=session15/list) -----------------------------------------------
ucc list.c
./a.out
--------------------------------------------------------------------------------

Submit your assembly program _list.s- with:

---- CODE (type=sh) -----------------------
submit hpc quiz15 isa.txt list.s
-------------------------------------------

There are no automatic tests (no message/email means your submit succeeded).


Provided Material: Skeleton
===========================
You can use the instruction set from Session 14 and this skeleton:

:import: session15/list/list_quiz15.s [fold]

In _list_quiz15.s_ the definition

---- CODE (type=c) -------------------------------------------------------------
struct ListNode c, a, b;
--------------------------------------------------------------------------------

of the uninitialized global variables _a_, _b_ and _c_ in the BSS segment is
already realized. Also the statement

---- CODE (type=s) -------------------------------------------------------------
a.id = 'a';
--------------------------------------------------------------------------------

is already implemented.