From 6c2b3708efcbd900c29422510cfdc62787d3c32d Mon Sep 17 00:00:00 2001
From: Michael Pavone <pavone@retrodev.com>
Date: Sun, 24 Apr 2016 01:24:38 -0700
Subject: Implemented VDP read prefetch and made DMA copy not use the FIFO any
 more. Now up to 114 out of 122 passing on VDP FIFO Test ROM

---
 vdp.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'vdp.h')

diff --git a/vdp.h b/vdp.h
index ea01b3d..a69cc90 100644
--- a/vdp.h
+++ b/vdp.h
@@ -41,7 +41,7 @@
 #define FLAG_MASKED        0x04
 #define FLAG_WINDOW        0x08
 #define FLAG_PENDING       0x10
-#define FLAG_UNUSED_SLOT   0x20
+#define FLAG_READ_FETCHED  0x20
 #define FLAG_DMA_RUN       0x40
 #define FLAG_DMA_PROG      0x80
 
@@ -161,6 +161,7 @@ typedef struct {
 	uint16_t    col_1;
 	uint16_t    col_2;
 	uint16_t    hv_latch;
+	uint16_t    prefetch;
 	uint8_t     v_offset;
 	uint8_t     dma_cd;
 	uint8_t     hint_counter;
-- 
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