From 3002ac8a4a0f67da22d08a568ffbbfa4d41e845b Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Tue, 17 Sep 2019 21:59:32 -0400
Subject: [PATCH] Adds mapping of READ(8) size 0 to size 256.

---
 Storage/MassStorage/SCSI/Target.cpp | 3 +++
 Storage/MassStorage/SCSI/Target.hpp | 3 +--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Storage/MassStorage/SCSI/Target.cpp b/Storage/MassStorage/SCSI/Target.cpp
index 558d3f331..817a9461e 100644
--- a/Storage/MassStorage/SCSI/Target.cpp
+++ b/Storage/MassStorage/SCSI/Target.cpp
@@ -45,6 +45,9 @@ CommandState::ReadWrite CommandState::read_write_specs() const {
 
 	specs.address = address();
 	specs.number_of_blocks = number_of_blocks();
+	if(!specs.number_of_blocks && (data_.size() == 6)) {
+		specs.number_of_blocks = 256;
+	}
 
 	return specs;
 }
diff --git a/Storage/MassStorage/SCSI/Target.hpp b/Storage/MassStorage/SCSI/Target.hpp
index b5e46e194..9401d61b4 100644
--- a/Storage/MassStorage/SCSI/Target.hpp
+++ b/Storage/MassStorage/SCSI/Target.hpp
@@ -27,8 +27,7 @@ class CommandState {
 
 		// For read and write commands.
 		struct ReadWrite {
-			uint32_t address;
-			uint16_t number_of_blocks;
+			uint32_t address, number_of_blocks;
 		};
 		ReadWrite read_write_specs() const;