Mercurial > hg > boxv9x
view boxv_io.h @ 2:13322eadf475 default tip
Do not set C1_SLOW_CARD and get visual effects back.
author | Michal Necasek <mnecasek@yahoo.com> |
---|---|
date | Thu, 07 Jul 2022 18:00:44 +0200 |
parents | 20b4ed4eebe3 |
children |
line wrap: on
line source
/***************************************************************************** Copyright (c) 2012-2022 Michal Necasek Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *****************************************************************************/ #include <conio.h> /* For port I/O prototypes. */ /* The 16-bit compiler does not do inpd(). We have to do it ourselves. * NB: It might be OK to trash the high bits of EAX but better be safe. */ /* Warning: Destroys high bits of EAX. */ unsigned long inpd( unsigned port ); #pragma aux inpd = \ ".386" \ "push eax" \ "in eax, dx" \ "mov dx, ax" \ "shr eax, 16" \ "xchg bx, ax" \ "pop eax" \ "xchg bx, ax" \ "xchg ax, dx" \ parm [dx] value [dx ax] modify [bx] nomemory; static void vid_outb( void *cx, unsigned port, unsigned val ) { outp( port, val ); } static void vid_outw( void *cx, unsigned port, unsigned val ) { outpw( port, val ); } static unsigned vid_inb( void *cx, unsigned port ) { return( inp( port ) ); } static unsigned vid_inw( void *cx, unsigned port ) { return( inpw( port ) ); } static unsigned long vid_ind( void *cx, unsigned port ) { return( inpd( port ) ); }