all dir commands

libsrc/rp6502/f_getcwd.c

@@ -0,0 +1,14 @@
+#include <rp6502.h>
+#include <errno.h>
+#include <string.h>
+
+int __fastcall__ f_getcwd (char* name, unsigned len)
+{
+    int i, ax;
+    ria_set_ax (len);
+    ax = ria_call_int (RIA_OP_GETCWD);
+    for (i = 0; i < ax; i++) {
+        name[i] = ria_pop_char ();
+    }
+    return ax;
+}

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;
+}

libsrc/rp6502/f_getlabel.c

@@ -0,0 +1,21 @@
+#include <rp6502.h>
+#include <errno.h>
+#include <string.h>
+
+int __fastcall__ f_getlabel (const char* path, char* label)
+{
+    int i, ax;
+    size_t pathlen = strlen (path);
+    if (pathlen > 255) {
+        errno = EINVAL;
+        return -1;
+    }
+    while (pathlen) {
+        ria_push_char (path[--pathlen]);
+    }
+    ax = ria_call_int (RIA_OP_GETLABEL);
+    for (i = 0; i < ax; i++) {
+        label[i] = ria_pop_char ();
+    }
+    return ax;
+}

libsrc/rp6502/f_setlabel.c

@@ -0,0 +1,16 @@
+#include <rp6502.h>
+#include <errno.h>
+#include <string.h>
+
+int __fastcall__ f_setlabel (const char* name)
+{
+    size_t namelen = strlen (name);
+    if (namelen > 255) {
+        errno = EINVAL;
+        return -1;
+    }
+    while (namelen) {
+        ria_push_char (name[--namelen]);
+    }
+    return ria_call_int (RIA_OP_SETLABEL);
+}