From a7f2940351751ccd6d7e15b7b52a47450ce8af16 Mon Sep 17 00:00:00 2001
From: Kyle Isom <kyle@imap.cc>
Date: Mon, 7 Apr 2025 21:41:44 +0000
Subject: [PATCH] symbol-def (#1)

Started branch to add `pform`, ended up pulling in `symbol-def` from the forums. Also adds the editor code from the T-Deck.

Reviewed-on: https://git.wntrmute.dev/kyle/ulisp-picocalc/pulls/1
Co-authored-by: Kyle Isom <kyle@imap.cc>
Co-committed-by: Kyle Isom <kyle@imap.cc>
---
 .gitignore             |  3 ++-
 lisp/bels.lsp          | 38 ++++++++++++++++++++++++++++
 lisp/rtc.lsp           | 57 ++++++++++++++++++++++++++++++++++++++++++
 lisp/sync.sh           | 22 ++++++++++++++++
 lisp/tools.lsp         | 30 ++++++++++++++++++++++
 picocalc/ulisp-arm.ino |  1 +
 6 files changed, 150 insertions(+), 1 deletion(-)
 create mode 100644 lisp/bels.lsp
 create mode 100644 lisp/rtc.lsp
 create mode 100755 lisp/sync.sh
 create mode 100644 lisp/tools.lsp

diff --git a/.gitignore b/.gitignore
index 1aa93c7..e79ee4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 secrets.lsp
 */build
-**/.uf2
+**/*.uf2
+*/*.patch
diff --git a/lisp/bels.lsp b/lisp/bels.lsp
new file mode 100644
index 0000000..b5f7e60
--- /dev/null
+++ b/lisp/bels.lsp
@@ -0,0 +1,38 @@
+;
+; Ringing the changes
+; see http://www.ulisp.com/show?1G42
+;
+
+(defvar *bell-pin* 3)
+
+(defun fnd (x lst)
+  (cond
+   ((null lst) nil)
+   ((< x (car lst)) (car lst))
+   (t (fnd x (cdr lst)))))
+   
+(defun sub (new old lst)
+  (cond
+   ((null lst) nil)
+   ((eq old (car lst)) (cons new (cdr lst)))
+   (t (cons (car lst) (sub new old (cdr lst))))))
+
+(defun nxt (lst)
+  (cond
+   ((not (apply > (cdr lst))) (cons (car lst) (nxt (cdr lst))))
+   ((> (car lst) (cadr lst)) nil)
+   (t (let* ((rest (reverse (cdr lst)))
+             (old (fnd (car lst) rest)))
+        (cons old (sub (car lst) old rest))))))
+
+(defun all (fun lst)
+  (when lst
+    (funcall fun lst)
+    (all fun (nxt lst))))
+
+(defun bel (lis)
+  (mapc 
+   (lambda (x) (note *bell-pin* x 4) (delay 500) (note) (delay 125))
+   lis)
+  (delay 500))
+
diff --git a/lisp/rtc.lsp b/lisp/rtc.lsp
new file mode 100644
index 0000000..3f4d7a5
--- /dev/null
+++ b/lisp/rtc.lsp
@@ -0,0 +1,57 @@
+(defvar *rtc-port* 0)
+
+(defun bcd-to-dec (x)
+   "(bcd-to-dec x)
+Convert the BCD-encoded number x to a decimal value."
+   (+
+      (* 10 (ash x -4))
+      (logand x #xf)))
+
+(defun dec-to-bcd (x)
+  "(dec-to-bcd x)
+Converts the decimal value to a BCD-encoded number.
+Number must be in the range 0 to 99."
+  (+
+    (ash (floor x 10) 4)
+    (logand (rem x 10) #xf)))
+
+(defun rtc-p ()
+  "(rtc-p)
+Returns t if the RTC is connected."
+  (with-i2c (str *rtc-port* #x68)
+	    (streamp str)))
+
+(defun rtc-set (h m s)
+ "(rtc-set hr min sec)
+Set the time on a DS3231 RTC. Times are in BCD, so use
+the appropriate reader macro, e.g. (rtc-set #x12 #x34 #x00)
+for 12:34:00."
+  (let ((h (dec-to-bcd h))
+	(m (dec-to-bcd m))
+	(s (dec-to-bcd s)))
+    (with-i2c (str *rtc-port* #x68)
+	      (write-byte 0 str)
+	      (write-byte s str)
+	      (write-byte m str)
+	      (write-byte h str))))
+
+(defun rtc-get ()
+  (with-i2c (str *rtc-port* #x68)
+    (write-byte 0 str)
+    (restart-i2c str 3)
+    (mapcar bcd-to-dec
+      (reverse
+        (list
+          (read-byte str)
+          (read-byte str)
+          (read-byte str))))))
+
+(defun rtc-now ()
+ "(rtc-now)
+Set the time using the RTC."
+  (apply now (rtc-get)))
+
+(defun now-rtc ()
+  "(now-rtc)
+Sets the RTC time using the now function."
+  (apply rtc-set (now)))
diff --git a/lisp/sync.sh b/lisp/sync.sh
new file mode 100755
index 0000000..dee2379
--- /dev/null
+++ b/lisp/sync.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+if [ "$(uname -s)" = "Linux" ]
+then
+	DEFAULT_MOUNT="/media/kyle/ULISP"
+else
+	DEFAULT_MOUNT="/Volumes/ULISP"
+fi
+
+MEDIA="${1:-${DEFAULT_MOUNT}}"
+
+if [ ! -d "${MEDIA}" ]
+then
+	echo "[!] ${MEDIA} isn't mounted!"
+	exit 1
+fi
+
+echo "[+] transferring lisp files to ${MEDIA}..."
+cp *.lsp "$MEDIA"
+echo "[+] unmounting ${MEDIA}"
+umount "$MEDIA"
+echo "[+] transfer complete"
diff --git a/lisp/tools.lsp b/lisp/tools.lsp
new file mode 100644
index 0000000..c5132f6
--- /dev/null
+++ b/lisp/tools.lsp
@@ -0,0 +1,30 @@
+(defun pprintf (sym str)
+  "(pprintf sym str)
+Pretty-print the function pointed to by sym to
+the stream, which follows the 'format directives."
+  (let ((form (eval sym)))
+    (format str "(defun ~a ~a~%~{  ~a~^~%~})"
+       (string sym)
+       (cadr form)
+       (cddr form))))
+
+(defun copy-file (source dest)
+  (with-sd-card (writer dest 2)
+    (with-sd-card (reader source)
+      (loop
+	(let ((data (read-byte reader)))
+	  (when (null data)
+	    (return))
+	  (write-byte data writer))))))
+
+(defun i2c-scan (port) 
+  (dotimes (addr 127)
+    (with-i2c (str port addr)
+      (when str (print addr)))))
+
+(defun i2c-scan2 (port) 
+  (dotimes (addr 127)
+    (with-i2c (str port addr)
+      (format t "~2,0'x: " addr)
+      (if str (print t)
+	(print nil)))))
diff --git a/picocalc/ulisp-arm.ino b/picocalc/ulisp-arm.ino
index 0607a67..32ab147 100644
--- a/picocalc/ulisp-arm.ino
+++ b/picocalc/ulisp-arm.ino
@@ -10498,6 +10498,7 @@ void setup () {
   initkybd();
 #endif
   pfstring(PSTR("uLisp 4.7b "), pserial); pln(pserial);
+  loadimage(NULL);
 }
 
 // Read/Evaluate/Print loop