diff -r db5ece2206cf -r 6d54ccb29de4 draft/a-bit-of-risc.org
--- a/draft/a-bit-of-risc.org	Mon Aug 12 18:31:37 2024 -0400
+++ b/draft/a-bit-of-risc.org	Sun Aug 18 22:16:12 2024 -0400
@@ -1,6 +1,7 @@
 #+title: A Bit of RISC
 #+date: [2024-03-11 Mon]
 #+setupfile: ../../clean.theme
+#+property: header-args :eval no-export
 I recently picked up [[https://dl.acm.org/doi/10.5555/2462741][Hacker's Delight]] and having a lot of fun with
 it. It's a collection of bit-manipulation tricks collected by hackers
 over many years. You can flip open pretty much anywhere in the book
@@ -21,7 +22,13 @@
 You can find most of the code from the book [[https://github.com/hcs0/Hackers-Delight][here]].
 
 * Design
+:PROPERTIES:
+:ID:       c030566f-1ede-4edc-b393-d2c6c1c2d19f
+:END:
 ** Data Representation
+:PROPERTIES:
+:ID:       6d93e084-1047-4a33-adb3-5c90af96ead0
+:END:
 We'll be sticking with a 32-bit word length as recommended in the
 Preface. We will also represent registers as integers whenever
 possible, instead of say a bit-vector. Without going into too much
@@ -36,6 +43,9 @@
 Floating-point support and special purpose registers are not required.
 
 ** Instructions
+:PROPERTIES:
+:ID:       fb86a212-b49a-44ff-b30b-32c789ca55e2
+:END:
 The Hacker's Delight RISC architecture is described in two tables,
 denoted =basic RISC= and =full RISC= respectively.
 
@@ -103,6 +113,9 @@
 instructions directly to Lisp functions using macros.
 
 ** Execution Model
+:PROPERTIES:
+:ID:       f84fcd3d-86ad-4b9b-a330-4572d6120559
+:END:
 We'll build this machine in Lisp and use plenty intrinsics from
 SBCL. As a starting point I followed Paul Khuong's excellent blog
 post: [[https://pvk.ca/Blog/2014/03/15/sbcl-the-ultimate-assembly-code-breadboard/][SBCL: The ultimate assembly code breadboard]].
@@ -116,6 +129,7 @@
 * The HAKMEM VM
 :properties:
 :header-args: :session t :results none :noeval t
+:ID:       43484c58-ab29-481c-b2b9-17ab4d91e22f
 :end:
 #+name: defpackage
 #+begin_src lisp