/* $OpenBSD: omrasops.h,v 1.7 2021/09/25 21:34:21 aoyama Exp $ */

/*
 * Copyright (c) 2013 Kenji Aoyama
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Helper macros
 */
#define W(addr)  ((u_int32_t *)(addr))
#define P0(addr) ((u_int32_t *)((u_int8_t *)(addr) +  0x40000))
#define P1(addr) ((u_int32_t *)((u_int8_t *)(addr) +  0x80000))
#define P2(addr) ((u_int32_t *)((u_int8_t *)(addr) +  0xC0000))
#define P3(addr) ((u_int32_t *)((u_int8_t *)(addr) + 0x100000))

/*
 * Replacement Rules (rops) (derived from hp300)
 */
#define RR_CLEAR        0x0
#define RR_COPY         0x3

/*
 * ROP function
 *
 * LUNA's frame buffer uses Hitachi HM53462 video RAM, which has raster
 * (logic) operation, or ROP, function.  To use ROP function on LUNA, write
 * a 32bit `mask' value to the specified address corresponding to each ROP
 * logic.
 *
 * D: the data writing to the video RAM
 * M: the data already stored on the video RAM
 */

/* operation            index   the video RAM contents will be */
#define ROP_ZERO         0      /* all 0        */
#define ROP_AND1         1      /* D & M        */ 
#define ROP_AND2         2      /* ~D & M       */
/* Not used on LUNA      3                      */
#define ROP_AND3         4      /* D & ~M       */
#define ROP_THROUGH      5      /* D            */
#define ROP_EOR          6      /* (~D & M) | (D & ~M)  */
#define ROP_OR1          7      /* D | M        */
#define ROP_NOR          8      /* ~D | ~M      */
#define ROP_ENOR         9      /* (D & M) | (~D & ~M)  */
#define ROP_INV1        10      /* ~D           */
#define ROP_OR2         11      /* ~D | M       */
#define ROP_INV2        12      /* ~M           */
#define ROP_OR3         13      /* D | ~M       */
#define ROP_NAND        14      /* ~D | ~M      */
#define ROP_ONE         15      /* all 1        */