From afcb3330709e357970a908e3396fe377f28a7222 Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sun, 21 Nov 2021 15:56:53 -0800
Subject: Interrupt-driven keyboard input.

---
 PLAN | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'PLAN')

diff --git a/PLAN b/PLAN
index 562c8ab..2283c2f 100644
--- a/PLAN
+++ b/PLAN
@@ -6,15 +6,6 @@ Implement switch features:
     Examine - needs a state machine
         led_memdata = [pc++]
 
-Don't ignore 6000 and 6001
-
-Add "interrupts enabled" flag
-    switch_start clears this
-6000, 6001, 6002 should properly handle it
-    6000 - skip next instruction if interrupts are enabled; disable interrupts (we should probably do this immediately)
-    6001 - enable interrupts (after next instruction)
-    6002 - disable interrupts (we should probably do this immediately)
-
 Implement remaining TTY output instructions
 
 Jules thinks clock is most likely interrupt source
-- 
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