From 57186c3c14664c133d8a9f86e9a852729451e59f Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Tue, 19 Jul 2022 16:37:13 -0400
Subject: [PATCH] Don't limit sprite fetch area; add further commentary.

---
 Machines/Amiga/Chipset.cpp | 2 +-
 Machines/Amiga/Sprites.cpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Machines/Amiga/Chipset.cpp b/Machines/Amiga/Chipset.cpp
index 6592469b1..46abacfab 100644
--- a/Machines/Amiga/Chipset.cpp
+++ b/Machines/Amiga/Chipset.cpp
@@ -610,7 +610,7 @@ template <int cycle, bool stop_if_cpu> bool Chipset::perform_cycle() {
 		}
 
 		if constexpr (cycle >= 0x16 && cycle < 0x36) {
-			if((dma_control_ & SpritesFlag) == SpritesFlag && y_ >= vertical_blank_height_) {
+			if((dma_control_ & SpritesFlag) == SpritesFlag) {
 				constexpr auto sprite_id = (cycle - 0x16) >> 2;
 				static_assert(sprite_id >= 0 && sprite_id < std::tuple_size<decltype(sprites_)>::value);
 
diff --git a/Machines/Amiga/Sprites.cpp b/Machines/Amiga/Sprites.cpp
index d908c6b6f..8d3a16afc 100644
--- a/Machines/Amiga/Sprites.cpp
+++ b/Machines/Amiga/Sprites.cpp
@@ -83,7 +83,7 @@ bool Sprite::advance_dma(int offset, int y) {
 		}
 	} else {
 		visible |= y == v_start_;
-		if(!visible) return false;
+		if(!visible) return false;	// Act as if there wasn't a fetch.
 
 		// Write colour word 1, then colour word 0; 0 is the word that 'arms'
 		// the sprite (i.e. makes it visible).