Update with notes on 3.31

2022-09-23 22:13:55 +01:00 · 2022-09-23 22:13:55 +01:00 · e506508c07
parent 26bddde526
commit e506508c07
1 changed files with 3 additions and 1 deletions
--- a/circuit-simulator.rkt
+++ b/circuit-simulator.rkt
@ -435,5 +435,7 @@
 ;; EXERCISE 3.31
 ;: (define (accept-action-procedure! proc)
 ;:   (set! action-procedures (cons proc action-procedures)))
-
+;; If the definition above is used, all wires are left at their starting values.
+;; In particular, for the half adder, the wire after the inverter remains at
+;; 0 despite its input being 0.  As a result, the sum is not set correctly.