diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.S')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.S | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.S b/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.S deleted file mode 100644 index 373723c7d..000000000 --- a/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.S +++ /dev/null @@ -1,153 +0,0 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/misc/BUSmemcpy.s,v 1.2 1998/07/25 16:56:49 dawes Exp $ */ -/****************************************************************************** - Copyright 1993 by Glenn G. Lai - - All Rights Reserved - -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 Glenn G. Lai not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -Glenn G. Lai DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -Glenn G. Lai -P.O. Box 4314 -Austin, Tx 78765 -(glenn@cs.utexas.edu) -8/9/93 -******************************************************************************/ -/* $XConsortium: BUSmemcpy.s /main/4 1996/02/21 17:39:34 kaleb $ */ - -/* - * Modified to use long-alignment of video memory rather than word-alignment - * to improve performance for LocalBus video cards. Function names changed - * from ISAToMem and MemToISA to BusToMem and MemToBus. - * - * David Dawes <dawes@XFree86.org>, 25 August 1993. - */ - - -#include "assyntax.h" - - FILE("BUSmemcpy.s") - - AS_BEGIN - -/* BusToMem copies from video memory to main memory - MemToBus copies from main memory to video memory - - void xf86BusToMem(unsigned char *dst, unsigned char *src, int len); - void xf86MemToBus(unsigned char *dst, unsigned char *src, int len); -*/ - -#define dst REGOFF(4,ESP) -#define src REGOFF(8,ESP) -#define len REGOFF(12,ESP) - - GLOBL GLNAME(xf86BusToMem) - GLOBL GLNAME(xf86MemToBus) - - SEG_DATA -copyright: - STRING("Copyright 8/9/1993 by Glenn G. Lai") - - SEG_TEXT - ALIGNTEXT4 -GLNAME(xf86BusToMem): - CLD - PUSH_L (ESI) - MOV_L (EDI, EDX) - - MOV_L (src, ESI) - MOV_L (dst, EDI) - MOV_L (len, ECX) - - CMP_L (CONST(7), ECX) - JC (quickBM) - - TEST_L (CONST(1), ESI) - JZ (BwM) - - MOVS_B - DEC_L (ECX) - -BwM: - TEST_L (CONST(2), ESI) - JZ (BlM) - - MOVS_W - DEC_L (ECX) - DEC_L (ECX) - -BlM: - MOV_L (ECX, EAX) - AND_L (CONST(3), EAX) - SHR_L (CONST(2), ECX) - REP - MOVS_L - MOV_L (EAX, ECX) -quickBM: - OR_L (ECX, ECX) - JZ (return) - REP - MOVS_B -return: - POP_L (ESI) - MOV_L (EDX, EDI) - RET -/************************/ - - ALIGNTEXT4 -GLNAME(xf86MemToBus): - CLD - PUSH_L (ESI) - MOV_L (EDI, EDX) - - MOV_L (src, ESI) - MOV_L (dst, EDI) - MOV_L (len, ECX) - - CMP_L (CONST(7), ECX) - JC (quickMB) - - TEST_L (CONST(1), EDI) - JZ (MwB) - - MOVS_B - DEC_L (ECX) - -MwB: - TEST_L (CONST(2), EDI) - JZ (MlB) - - MOVS_W - DEC_L (ECX) - DEC_L (ECX) - -MlB: - MOV_L (ECX, EAX) - AND_L (CONST(3), EAX) - SHR_L (CONST(2), ECX) - REP - MOVS_L - MOV_L (EAX, ECX) -quickMB: - OR_L (ECX, ECX) - JZ (return) - REP - MOVS_B - - POP_L (ESI) - MOV_L (EDX, EDI) - RET - |