From 950fddebf954086c25bd02cd4490662deee99bfe Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Wed, 20 Apr 2022 08:30:16 -0400
Subject: [PATCH] Preserve MOVE USP.

---
 Processors/68000/Implementation/68000Storage.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Processors/68000/Implementation/68000Storage.cpp b/Processors/68000/Implementation/68000Storage.cpp
index e2a134971..8cfa8ab9d 100644
--- a/Processors/68000/Implementation/68000Storage.cpp
+++ b/Processors/68000/Implementation/68000Storage.cpp
@@ -898,8 +898,14 @@ struct ProcessorStorageConstructor {
 
 							case Operation::MOVEAw:	opname = "MOVEA.w";	break;
 							case Operation::MOVEAl:
+								// A bunch of things are multiplexed onto MOVEA.l;
+								// disambiguate here.
 								if((opcode_ & 0xf1c0) == 0x41c0) {
 									opname = "LEA";
+								} else if ((opcode_ & 0xff8) == 0xe68) {
+									opname = "MOVEfromUSP";
+								} else if ((opcode_ & 0xff8) == 0xe60) {
+									opname = "MOVEtoUSP";
 								} else {
 									opname = "MOVEA.l";
 								}