|
DataMuseum.dkPresents historical artifacts from the history of: DKUUG/EUUG Conference tapes |
This is an automatic "excavation" of a thematic subset of
See our Wiki for more about DKUUG/EUUG Conference tapes Excavated with: AutoArchaeologist - Free & Open Source Software. |
top - metrics - downloadIndex: T a
Length: 1800 (0x708)
Types: TextFile
Names: »apa8.c«
└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
└─⟦526ad3590⟧ »EUUGD11/gnu-31mar87/X.V10.R4.tar.Z«
└─⟦2109abc41⟧
└─⟦this⟧ »./X.V10R4/libibm/libsrc/apa8.c«
#ifndef lint
static char *rcsid_apa8_c = "$Header: apa8.c,v 10.1 86/11/19 10:39:37 jg Exp $";
#endif lint
/*
* apa8.c device initialization
*
* apa8_init apa8 initialization routine
*
* Author:
* Scott Bates
* Brown University
* IRIS, Box 1946
* Providence, RI 02912
*
*
* Copyright (c) 1986 Brown University
*
* Permission to use, copy, modify and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies, and that both
* that copyright notice and this permission notice appear in supporting
* documentation, and that the name of Brown University not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. Brown University makes no
* representations about the suitability of this software for any purpose.
* It is provided "as-is" without express or implied warranty.
*/
#include "private.h"
#include "bitblt.h"
#include "apa8.h"
apa8_init()
{
u_char tmp;
#ifdef TRACE_X
fprintf (stderr, "In apa8_init\n");
fflush (stderr);
#endif TRACE_X
/*
* Initialize (reset) the APA-8 screen
*/
/*
* Set up the write and data mask.
*/
SET_WRITEMASK(NOMASK);
SET_DATAMASK(HIDDEN_DM);
/*
* Set up the APA8 control register to use its system read/write
* calls in the X direction.
*/
SET_FC(DCR_VEN | DCR_SEN | DCR_SWR | DCR_X | HIDDEN_FUNC);
/*
* Test for the APA8 screen.
*/
tmp = *(u_char *)SCREEN_BASE;
*(u_char *)SCREEN_BASE = 0x0F;
if (*(u_char *)SCREEN_BASE != 0x0F) {
DeviceError("apa8 not found !!");
exit(2);
}
*(u_char *)SCREEN_BASE = tmp;
}