+++ /dev/null
-/*
- * $XConsortium: stipple68k.s,v 1.3 94/04/17 20:29:09 keith Exp $
- * $XFree86: xc/programs/Xserver/cfb/stipple68k.s,v 3.0 1996/08/13 11:27:37 dawes Exp $
- *
-Copyright (c) 1990 X Consortium
-
-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
-X CONSORTIUM 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.
-
-Except as contained in this notice, the name of the X Consortium shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from the X Consortium.
- *
- * Author: Keith Packard, MIT X Consortium
- */
-
-/*
- * Stipple code for 68k processors
- */
-
-#ifdef __ELF__
-#ifdef TETEXT
-#define _cfbStippleStack cfbStippleStackTE
-#else
-#define _cfbStippleStack cfbStippleStack
-#endif
-#else
-#ifdef TETEXT
-#define _cfbStippleStack _cfbStippleStackTE
-#endif
-#endif
-
-
-#define atemp a0
-#define addr a1
-#define stipple a2
-#define stride a3
-#define case a4
-
-#define ctemp d0
-#define value d1
-#define count d2
-#define shift d3
-#define c d4
-#define lshift d5
-#define rshift d6
-
-#define PushMask #0x3e38
-#define PopMask #0x1c7c
-#define NumReg 8
-#define arg0 36
-#define arg1 40
-#define arg2 44
-#define arg3 48
-#define arg4 52
-#define arg5 56
-#define arg6 60
-
-#ifdef __ELF__
-#define ForEachLine .L2
-#define ForEachBits .L5
-#define a0 %A0
-#define a1 %A1
-#define a2 %A2
-#define a3 %A3
-#define a4 %A4
-#define a5 %A5
-#define a6 %A6
-#define sp %SP
-#define d0 %D0
-#define d1 %D1
-#define d2 %D2
-#define d3 %D3
-#define d4 %D4
-#define d5 %D5
-#define d6 %D6
-#define d7 %D7
-#else
-#define ForEachLine L2
-#define ForEachBits L5
-#endif
-#define CASE_SIZE 5
-
-.text
- .even
- .globl _cfbStippleStack
-_cfbStippleStack:
- moveml PushMask,sp@-
- movel sp@(arg0),addr
- movel sp@(arg1),stipple
- movel sp@(arg2),value
- movel sp@(arg3),stride
- movew sp@(arg4+2),count
- movel sp@(arg5),shift
- subqw #1,count /* predecrement count */
- lea CaseBegin,case
- movew #28,lshift
- addl shift,lshift
- movew #28,rshift
- subql #4,shift
- negl shift
-ForEachLine:
- movel addr,atemp
- addl stride,addr
- movel stipple@+,c
-#ifdef TETEXT
- jeq NextLine
-#endif
- /* Get first few bits */
- movel c,ctemp
- lsrl lshift,ctemp
- lsll #CASE_SIZE,ctemp
- lsll shift,c /* set up for next bits */
- jmp case@(ctemp:l)
-
-ForEachBits:
- addl #4,atemp
- movel c,ctemp
- lsrl rshift,ctemp /* better than lsrl, andi */
- lsll #CASE_SIZE,ctemp
- lsll #4,c /* set up for next bits */
- jmp case@(ctemp:l)
-
-#define Break \
- andl c,c ; \
- jne ForEachBits ; \
- dbra count,ForEachLine ; \
- moveml sp@+,PopMask ; \
- rts ;
-
-CaseBegin:
- jne ForEachBits /* 0 */
-NextLine:
- dbra count,ForEachLine
- moveml sp@+,PopMask
- rts
-
- . = CaseBegin + 0x20
-
- moveb value,atemp@(3) /* 1 */
- Break
-
- . = CaseBegin + 0x40
-
- moveb value,atemp@(2) /* 2 */
- Break
-
- . = CaseBegin + 0x60
-
- movew value,atemp@(2) /* 3 */
- Break
-
- . = CaseBegin + 0x80
-
- moveb value,atemp@(1) /* 4 */
- Break
-
- . = CaseBegin + 0xa0
-
- moveb value,atemp@(3) /* 5 */
- moveb value,atemp@(1)
- Break
-
- . = CaseBegin + 0xc0
-
- movew value,atemp@(1) /* 6 */
- Break
-
- . = CaseBegin + 0xe0
-
- movew value,atemp@(2) /* 7 */
- moveb value,atemp@(1)
- Break
-
- . = CaseBegin + 0x100
-
- moveb value,atemp@ /* 8 */
- Break
-
- . = CaseBegin + 0x120
-
- moveb value,atemp@(3) /* 9 */
- moveb value,atemp@
- Break
-
- . = CaseBegin + 0x140
-
- moveb value,atemp@(2) /* a */
- moveb value,atemp@
- Break
-
- . = CaseBegin + 0x160
-
- movew value,atemp@(2) /* b */
- moveb value,atemp@
- Break
-
- . = CaseBegin + 0x180
-
- movew value,atemp@ /* c */
- Break
-
- . = CaseBegin + 0x1a0
-
- moveb value,atemp@(3) /* d */
- movew value,atemp@
- Break
-
- . = CaseBegin + 0x1c0
-
- moveb value,atemp@(2) /* e */
- movew value,atemp@
- Break
-
- . = CaseBegin + 0x1e0
-
- movel value,atemp@ /* f */
- Break
projects / rdpsrv / blobdiff