From baf35c20e22d80332567f3a7136d1dcec8a627fd Mon Sep 17 00:00:00 2001
From: kitty <nepeta@canaglie.net>
Date: Tue, 20 Jan 2026 19:11:47 +1100
Subject: decision on forth registers

---
 readme.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'readme.md')

diff --git a/readme.md b/readme.md
index 5710886..82550b7 100644
--- a/readme.md
+++ b/readme.md
@@ -4,3 +4,13 @@ its a forth for linux x86\_64. mostly made for personal stuff.
 if you use it and it breaks, too bad
 
 public domain
+
+## forth registers
+there are a set of 'virtual registers' (see moving forth part 1)
+
+W, the working register, is r11.
+X, the secondary working register, is r12.
+IP, the instruction pointer, is r13.
+SP, the working stack pointer, is r14.
+RSP, the return stack pointer, is rsp.
+TOS, the top of the stack, is r15.
-- 
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