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diff vdp.h @ 980:928442068afe

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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
author Michael Pavone <pavone@retrodev.com>
date Sun, 24 Apr 2016 01:24:38 -0700
parents 08346262990b
children bf63cbf1d7bb
line wrap: on
line diff
--- a/vdp.h	Sun Apr 24 00:22:38 2016 -0700
+++ b/vdp.h	Sun Apr 24 01:24:38 2016 -0700
@@ -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 @@
 	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;