aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S')
-rw-r--r--xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S153
1 files changed, 0 insertions, 153 deletions
diff --git a/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S b/xorg-server/hw/xfree86/os-support/misc/BUSmemcpy.S
deleted file mode 100644
index 373723c7d..000000000
--- a/xorg-server/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
-