From 7083e7a70419c245eb472958ef547b3fc0c5f19c Mon Sep 17 00:00:00 2001
From: ry755 <ryanst755@gmail.com>
Date: Wed, 2 Feb 2022 04:43:23 -0800
Subject: [PATCH] fox32+fox32asm: Make ImmediatePtr encoding consistent for src
 and dest

---
 src/cpu.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cpu.rs b/src/cpu.rs
index 801980b..66070bf 100644
--- a/src/cpu.rs
+++ b/src/cpu.rs
@@ -2785,7 +2785,8 @@ impl Instruction {
         let destination = match (((half & 0x000F) >> 2) as u8) & 0b00000011 {
             0x00 => Operand::Register,
             0x01 => Operand::RegisterPtr,
-            0x02 => Operand::ImmediatePtr(size),
+            // 0x02 is invalid, can't use an immediate value as a destination
+            0x03 => Operand::ImmediatePtr(size),
             _ => return None,
         };
         let condition = match (half & 0x00F0) as u8 {