#ifndef GRAPHICS_COPPER_H
#define GRAPHICS_COPPER_H
/*
/*	$Header: /home/amiga/V36/src/kickstart/graphics/RCS/copper.h,v 36.6 90/03/28 09:37:41 bart Exp $   
/*	$Filename: graphics/copper.h $
/*	$Release: 1.4 $
/*	$Revision: 36.6 $
/*	$Date: 90/03/28 09:37:41 $
/*
/*	graphics copper list intstruction definintions
/*
/*	(C) Copyright 1985,1986,1987,1988,1989 Commodore-Amiga, Inc.
/*	    All Rights Reserved
*/

#define COPPER_MOVE 0       /* pseude opcode for move #XXXX,dir */
#define COPPER_WAIT 1       /* pseudo opcode for wait y,x */
#define CPRNXTBUF   2       /* continue processing with next buffer */
#define CPR_NT_LOF  0x8000  /* copper instruction only for short frames */
#define CPR_NT_SHT  0x4000  /* copper instruction only for long frames */
struct CopIns
{
    short   OpCode; /* 0 = move, 1 = wait */
    union
    {
    struct CopList *nxtlist;
    struct 
    {
   union
   {
   SHORT   VWaitPos;        /* vertical beam wait */
   SHORT   DestAddr;        /* destination address of copper move */
   } u1;
   union
   {
   SHORT   HWaitPos;        /* horizontal beam wait position */
   SHORT   DestData;        /* destination immediate data to send */
   } u2;
    } u4;
    } u3;
};
/* shorthand for above */
#define NXTLIST     u3.nxtlist
#define VWAITPOS    u3.u4.u1.VWaitPos
#define DESTADDR    u3.u4.u1.DestAddr
#define HWAITPOS    u3.u4.u2.HWaitPos
#define DESTDATA    u3.u4.u2.DestData


/* structure of cprlist that points to list that hardware actually executes */
struct cprlist
{
    struct cprlist *Next;
    UWORD   *start;         /* start of copper list */
    SHORT   MaxCount;       /* number of long instructions */
};

struct CopList
{
    struct  CopList *Next;  /* next block for this copper list */
    struct  CopList *_CopList;  /* system use */
    struct  ViewPort *_ViewPort;    /* system use */
    struct  CopIns *CopIns; /* start of this block */
    struct  CopIns *CopPtr; /* intermediate ptr */
    UWORD   *CopLStart;     /* mrgcop fills this in for Long Frame*/
    UWORD   *CopSStart;     /* mrgcop fills this in for Short Frame*/
    SHORT   Count;          /* intermediate counter */
    SHORT   MaxCount;       /* max # of copins for this block */
    SHORT   DyOffset;       /* offset this copper list vertical waits */
#ifdef V1_3
    UWORD   *Cop2Start;
    UWORD   *Cop3Start;
    UWORD   *Cop4Start;
    UWORD   *Cop5Start;
#endif
};

struct UCopList
{
    struct UCopList *Next;
    struct CopList  *FirstCopList; /* head node of this copper list */
    struct CopList  *CopList;      /* node in use */
};

struct copinit
{
    UWORD vsync_hblank[2];
    UWORD diwstart[4];
    UWORD diagstrt[4];      /* copper list for first bitplane */
    UWORD sprstrtup[(2*8*2)];
    UWORD wait14[2];
    UWORD norm_hblank[2];
    UWORD genloc[4];
    UWORD jump[(2*2)];
    UWORD wait_forever[2];
    UWORD   sprstop[4];
};

#endif