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libsrc/rp6502/f_getfree.c

@@ -0,0 +1,22 @@
+#include <rp6502.h>
+#include <errno.h>
+#include <string.h>
+
+int __fastcall__ f_getfree (const char* name, unsigned long* free, unsigned long* total)
+{
+    int ax;
+    size_t namelen = strlen (name);
+    if (namelen > 255) {
+        errno = EINVAL;
+        return -1;
+    }
+    while (namelen) {
+        ria_push_char (name[--namelen]);
+    }
+    ax = ria_call_int (RIA_OP_GETFREE);
+    if (ax >= 0) {
+        *free = ria_pop_long ();
+        *total = ria_pop_long ();
+    }
+    return ax;
+}