X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=retrocrawl;a=blobdiff_plain;f=src%2Famiga%2Fcopper.h;fp=src%2Famiga%2Fcopper.h;h=3e6431509f2fbfa007465e4d4353db20262675f2;hp=0000000000000000000000000000000000000000;hb=cab072d239d772d1c3445612d2599da36b087b25;hpb=03ec5d69f5f53b61e8b6aefbcd23b0b258c6b60a

diff --git a/src/amiga/copper.h b/src/amiga/copper.h
new file mode 100644
index 0000000..3e64315
--- /dev/null
+++ b/src/amiga/copper.h
@@ -0,0 +1,39 @@
+#ifndef COPPER_H_
+#define COPPER_H_
+
+#include "inttypes.h"
+
+#define COPPER_MOVE(reg, data)	(((uint32_t)(reg) << 16) | ((uint32_t)(data) & 0xffff))
+#define COPPER_WAIT(x, y) \
+	(0x0001fffe | ((uint32_t)((x) + 0x81) << 16) | ((uint32_t)((y) + 0x2c) << 24))
+#define COPPER_WAIT_OVERSCAN(x, y) \
+	(0x0001fffe | ((uint32_t)(x) << 16) | ((uint32_t)(y) << 24))
+#define COPPER_VWAIT(s)			(0x0001ff00 | ((uint32_t)((s) + 0x2c) << 24))
+#define COPPER_VWAIT_OVERSCAN(s) \
+	(0x0001ff00 | ((uint32_t)(s) << 24))
+#define COPPER_OVERFLOW			0xffdffffe
+#define COPPER_END				0xfffffffe
+
+extern uint32_t *copperlist, *copperlist_end;
+
+enum {
+	COPPER_SINGLE = 1,
+	COPPER_DOUBLE = 2
+};
+
+int init_copper(int maxlist, int nlists);
+void cleanup_copper(void);
+
+/* enables copper DMA */
+void enable_copper(void);
+/* disables copper DMA */
+void disable_copper(void);
+
+void clear_copper(void);
+void add_copper(uint32_t cmd);
+void sort_copper(void);	/* TODO */
+
+void swap_copper(void);
+
+
+#endif	/* COPPER_H_ */