Return to putchar.c CVS log

Up to [GnuMach] / Gnu-Mach / i386 / pc

Annotation of Gnu-Mach/i386/pc/putchar.c, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Copyright (c) 1995-1994 The University of Utah and
        !             3:  * the Computer Systems Laboratory at the University of Utah (CSL).
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Permission to use, copy, modify and distribute this software is hereby
        !             7:  * granted provided that (1) source code retains these copyright, permission,
        !             8:  * and disclaimer notices, and (2) redistributions including binaries
        !             9:  * reproduce the notices in supporting documentation, and (3) all advertising
        !            10:  * materials mentioning features or use of this software display the following
        !            11:  * acknowledgement: ``This product includes software developed by the
        !            12:  * Computer Systems Laboratory at the University of Utah.''
        !            13:  *
        !            14:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
        !            15:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
        !            16:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            17:  *
        !            18:  * CSL requests users of this software to return to [email protected] any
        !            19:  * improvements that they make and grant CSL redistribution rights.
        !            20:  *
        !            21:  *      Author: Bryan Ford, University of Utah CSL
        !            22:  */
        !            23: 
        !            24: #include <mach/machine/eflags.h>
        !            25: 
        !            26: #include "real.h"
        !            27: 
        !            28: #ifndef ENABLE_IMMCONSOLE
        !            29: 
        !            30: #include <rc.h>
        !            31: int putchar(int c)
        !            32: {
        !            33: 
        !            34:        if (c == '\n')
        !            35:                putchar('\r');
        !            36: 
        !            37:        {
        !            38: #if RCLINE >= 0
        !            39:                static int serial_inited = 0;
        !            40:                if (! serial_inited) {
        !            41:                        init_serial();
        !            42:                        serial_inited = 1;
        !            43:                }
        !            44:                serial_putc(c);
        !            45: #else
        !            46:                struct real_call_data rcd;
        !            47:                rcd.eax = 0x0e00 | (c & 0xff);
        !            48:                rcd.ebx = 0x07;
        !            49:                rcd.flags = 0;
        !            50:                real_int(0x10, &rcd);
        !            51: #endif
        !            52:        }
        !            53: 
        !            54:        return 0;
        !            55: }
        !            56: 
        !            57: #else ENABLE_IMMCONSOLE
        !            58: 
        !            59: void
        !            60: putchar(unsigned char c)
        !            61: {
        !            62:        static int ofs = -1;
        !            63: 
        !            64:        if (ofs < 0)
        !            65:        {
        !            66:                ofs = 0;
        !            67:                putchar('\n');
        !            68:        }
        !            69:        if (c == '\r')
        !            70:        {
        !            71:                ofs = 0;
        !            72:        }
        !            73:        else if (c == '\n')
        !            74:        {
        !            75:                bcopy(0xb8000+80*2, 0xb8000, 80*2*24);
        !            76:                bzero(0xb8000+80*2*24, 80*2);
        !            77:                ofs = 0;
        !            78:        }
        !            79:        else
        !            80:        {
        !            81:                volatile unsigned char *p;
        !            82: 
        !            83:                if (ofs >= 80)
        !            84:                {
        !            85:                        putchar('\r');
        !            86:                        putchar('\n');
        !            87:                }
        !            88: 
        !            89:                p = (void*)0xb8000 + 80*2*24 + ofs*2;
        !            90:                p[0] = c;
        !            91:                p[1] = 0x0f;
        !            92:                ofs++;
        !            93:        }
        !            94: }
        !            95: 
        !            96: #endif ENABLE_IMMCONSOLE

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.