1 files changed, 95 insertions, 0 deletions
diff --git a/src/prc1/cgen/qbe/print.c b/src/prc1/cgen/qbe/print.c
new file mode 100644
index 0000000..2890eb8
--- /dev/null
+++ b/src/prc1/cgen/qbe/print.c
@@ -0,0 +1,95 @@
+#include "cgen.h"
+#include "cgen/prv.h"
+#include "print.h"
+#include "qbe.h"
+#include <stdio.h>
+
+static int cg_str(const struct prisym *s, struct cgen *c, const char *f)
+{
+    fprintf(stderr, "%s: TODO\n", __func__);
+    return -1;
+}
+
+static int cg_ptr(const struct prisym *s, struct cgen *c, const char *f)
+{
+    const char *tmpf = cgen_tmp2(c), *tmpv = cgen_tmp2(c),
+        *name = s->s->tk->s;
+
+    if (!tmpf || !tmpv)
+        return -1;
+
+    printf("%%%s =l loadl ", tmpv);
+
+    if (cgen_global(c->fn, s->u.e))
+        printf("$%s", name);
+    else
+        printf("%%%s_", name);
+
+    fputc('\n', stdout);
+    printf("%%%s =l loadl $%s\n", tmpf, f);
+    printf("call $fprintf(w %%%s, l $____fmtlx, ..., l %%%s)\n", tmpf, tmpv);
+    return 0;
+}
+
+static int cg_num(const struct prisym *s, struct cgen *c, const char *f)
+{
+    fprintf(stderr, "%s: TODO\n", __func__);
+    return -1;
+}
+
+static int cg_nam(const struct prisym *ps, struct cgen *c, const char *f)
+{
+    const char *tmpf = cgen_tmp2(c), *name = ps->u.name;
+
+    if (!tmpf)
+        return -1;
+
+    printf("%%%s =l loadl $%s\n", tmpf, f);
+    printf("call $fprintf(w %%%s, l $____fmtlx, ..., l $%s)\n", tmpf, name);
+    return 0;
+}
+
+static int cg_lit(const struct prisym *s, struct cgen *c, const char *f)
+{
+    const struct lit *l = s->u.lit;
+    const char *tmp;
+
+    if (!l)
+    {
+        fprintf(stderr, "%s: unexpected null literal\n", __func__);
+        return -1;
+    }
+
+    /* TODO: ask target for sizeof (void *) */
+    tmp = cgen_tmp(sizeof (void *));
+    printf("%%%s =l loadl $%s\n", tmp, f);
+    printf("call $fputs(l $%s, w %%%s)\n", l->name, tmp);
+    return 0;
+}
+
+int qbe_print(const struct print *pr, struct cgen *c, const char *f)
+{
+    for (size_t i = 0; i < pr->nsyms; i++)
+    {
+        const struct prisym *ps = &pr->syms[i];
+        static int (*fn[])(const struct prisym *, struct cgen *, const char *) =
+        {
+            [PRS_LIT] = cg_lit,
+            [PRS_STR] = cg_str,
+            [PRS_NAM] = cg_nam,
+            [PRS_PTR] = cg_ptr,
+            [PRS_NUM] = cg_num
+        };
+
+        if (fn[ps->type](ps, c, f))
+            return -1;
+    }
+
+    if (!pr->skipln)
+    {
+        printf("%%v =l loadl $%s\n", f);
+        puts("call $fputc(l 10 , w %v)");
+    }
+
+    return 0;
+}