diff options
Diffstat (limited to 'usr.bin/doscmd/int2f.c')
| -rw-r--r-- | usr.bin/doscmd/int2f.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/usr.bin/doscmd/int2f.c b/usr.bin/doscmd/int2f.c deleted file mode 100644 index 4ac5349..0000000 --- a/usr.bin/doscmd/int2f.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * Copyright (c) 1992, 1993, 1996 - * Berkeley Software Design, Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Berkeley Software - * Design, Inc. - * - * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * BSDI int2f.c,v 2.2 1996/04/08 19:32:53 bostic Exp - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "doscmd.h" -#include "dispatch.h" -#include "tty.h" - -/* -** Multiplex interrupt. -** -** subfunctions 0-0x7f reserved for DOS, some are implemented here. -** -*/ - -/* -** 2f:00 2f:01 2f:02 2f:03 -** -** Various PRINT.COM functions -*/ -static int -int2f_printer(regcontext_t *REGS) -{ - debug (D_FILE_OPS, "Called printer function 0x%02x", R_AH); - R_AL = FUNC_NUM_IVALID; - return(0); -} - -/* -** 2f:12 -** -** DOS internal functions. Only one we support is 0x2e, and then only to -** complain about it. -*/ -static int -int2f_dosinternal(regcontext_t *REGS) -{ - switch (R_AL) { - case 0x2e: /* XXX - GET/SET ERROR TABLE ADDRESSES */ - switch (R_DL) { - case 0x00: - case 0x02: - case 0x04: - case 0x06: - debug(D_ALWAYS,"DOS program attempted to get internal error table.\n"); - break; - - case 0x01: - case 0x03: - case 0x05: - case 0x07: - case 0x09: - debug(D_ALWAYS,"DOS program attempted to set error table.\n"); - break; - } - - default: - unknown_int4(0x2f, 0x12, R_AL, R_DL, REGS); - break; - } - R_AL = FUNC_NUM_IVALID; - return(0); -} - -/* -** 2f:16 -** -** Windows Enhanced Mode functions. Aigh! -*/ -static int -int2f_windows(regcontext_t *REGS) -{ - switch (R_AL) { - case 0x00: - R_AL = 0x00; /* Neither Win 3.x nor 2.x running */ - return(0); - - case 0x80: /* installation check */ - tty_pause(); - R_AL = 0x00; - return(0); - - default: - unknown_int3(0x2f, 0x16, R_AL, REGS); - break; - } - R_AL = FUNC_NUM_IVALID; - return(0); -} - -/* -** 2f:43 -** -** XMS interface -*/ -static int -int2f_xms(regcontext_t *REGS) -{ - switch(R_AL) { - case 0: /* installation check */ - return(0); /* %al = 0 */ - default: - R_AL = FUNC_NUM_IVALID; - return(0); - } -} - - -static struct intfunc_table int2f_table[] = { - - { 0x00, IFT_NOSUBFUNC, int2f_printer, "printer"}, - { 0x01, IFT_NOSUBFUNC, int2f_printer, "printer"}, - { 0x02, IFT_NOSUBFUNC, int2f_printer, "printer"}, - { 0x03, IFT_NOSUBFUNC, int2f_printer, "printer"}, - { 0x12, IFT_NOSUBFUNC, int2f_dosinternal, "DOS internal function"}, - { 0x16, IFT_NOSUBFUNC, int2f_windows, "Windows detect"}, - { 0x43, IFT_NOSUBFUNC, int2f_xms, "XMS"}, - { -1, 0, NULL, NULL} -}; - -/* -** int2f (multiplex) handler. -** -** Note that due to the widely varied and inconsistent conventions, handlers -** called from here are expected to manage their own return values. -*/ -void -int2f(regcontext_t *REGS) -{ - int idx; - - /* look up the handler for the current function */ - idx = intfunc_search(int2f_table, R_AH, R_AL); - - if (idx >= 0) { /* respond on multiplex chain */ - int2f_table[idx].handler(REGS); - } else { - unknown_int2(0x2f, R_AH, REGS); - } -} - - - |
