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Annotation of 43BSDTahoe/new/X/libibm/libsrc/apa16.c, revision 1.1.1.1

1.1       root        1: #ifndef lint
                      2: static char *rcsid_apa16_c = "$Header: apa16.c,v 10.1 86/11/19 10:39:18 jg Exp $";
                      3: #endif lint
                      4: /* apa16.c - APA16 controller initialization
                      5:  *
                      6:  *     apa16_init      APA16 initialization routine
                      7:  *
                      8:  *     Author:
                      9:  *             Scott Bates
                     10:  *             Brown University
                     11:  *             IRIS, Box 1946
                     12:  *             Providence, RI 02912
                     13:  *
                     14:  *
                     15:  *             Copyright (c) 1986 Brown University
                     16:  *
                     17:  * Permission to use, copy, modify and distribute this software and its
                     18:  * documentation for any purpose and without fee is hereby granted, provided
                     19:  * that the above copyright notice appear in all copies, and that both
                     20:  * that copyright notice and this permission notice appear in supporting
                     21:  * documentation, and that the name of Brown University not be used in
                     22:  * advertising or publicity pertaining to distribution of the software
                     23:  * without specific, written prior permission. Brown University makes no
                     24:  * representations about the suitability of this software for any purpose.
                     25:  * It is provided "as-is" without express or implied warranty.
                     26:  */
                     27: 
                     28: #include "private.h"
                     29: #include "bitblt.h"
                     30: #include "apa16.h"
                     31: 
                     32: /*
                     33:  * Initialize APA16
                     34:  */
                     35: 
                     36: apa16_init()
                     37: {
                     38: 
                     39: #ifdef TRACE_X
                     40:         fprintf (stderr, "In apa16_init\n");
                     41:         fflush (stderr);
                     42: #endif TRACE_X
                     43: 
                     44:         /*
                     45:          * Initialize (reset) the APA16 screen
                     46:          */
                     47: 
                     48:         RESET_APA16();
                     49:         *(short *)MR = MR_DEFAULT;
                     50:         *(short *)CSR = WHITE_ON_BLACK;
                     51:         ENABLE_VD_OUT();
                     52:  
                     53:         /*
                     54:          * Test for the APA16 screen.
                     55:          */
                     56: 
                     57:         *(char *)SCREEN_BASE = 0x0F;
                     58:         if (*(char *)SCREEN_BASE != 0x0F) {
                     59:                /*
                     60:                 * Log error and exit
                     61:                 */
                     62: 
                     63:                 DeviceError("apa16 not found !!");
                     64:                exit(2);
                     65:         }
                     66: }

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