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#include <stdio.h>
#include "gen_code.h"
#include "pc.h"
int gen_label(t)
ptree *t;
{
int tmp;
if (!(t->l && t->r))
return 0;
if (t->l) {
tmp = gen_label(t->l);
t->l->label = (!tmp ? 1 : tmp);
} else
yyerror("GEN_LABEL: left child NULL, shouldn't happen!\n");
if (t->r)
t->r->label = gen_label(t->r);
else
t->r->label = 0;
if (t->r->label == t->l->label) {
return 1 + t->l->label;
} else {
return t->r->label > t->l->label ? t->r->label : t->l->label;
}
}
void gen_expr(t)
ptree *t;
{
}
void gen_statement(t)
ptree *t;
{
char buf[100];
if (!t)
return;
switch (t->type){
case ASSIGNOP:
break;
case PCALL:
break;
case LIST:
break;
case IF:
break;
case WHILE:
break;
case FOR:
break;
default:
snprintf(buf, 100, "Unknown statement type: %d\n", t->type);
yyerror(buf);
}
}
void gen_code(t, name)
ptree *t;
char *name;
{
printf("\n.globl %s\n.type %s, @function\n%s:\n", name, name, name);
/*TODO call gen_statement on all statements in LIST t*/
/*Look at set_type for list traverseal code*/
}
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