122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
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/*
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*
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Copyright 1990, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*
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* Author: Keith Packard, MIT X Consortium
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*/
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/*
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* Stipple stack macro for 68k GCC
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*/
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#define STIPPLE(addr,stipple,value,width,count,shift) \
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__asm volatile ( \
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"lea 5f,%/a1\n\
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moveq #28,%/d2\n\
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addl %2,%/d2\n\
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moveq #28,%/d3\n\
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subql #4,%2\n\
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negl %2\n\
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1:\n\
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movel %0,%/a0\n\
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addl %6,%0\n\
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movel %3@+,%/d1\n\
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jeq 3f\n\
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movel %/d1,%/d0\n\
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lsrl %/d2,%/d0\n\
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lsll #5,%/d0\n\
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lsll %2,%/d1\n\
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jmp %/a1@(%/d0:l)\n\
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2:\n\
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addl #4,%/a0\n\
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movel %/d1,%/d0\n\
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lsrl %/d3,%/d0\n\
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lsll #5,%/d0\n\
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lsll #4,%/d1\n\
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jmp %/a1@(%/d0:l)\n\
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5:\n\
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jne 2b ; dbra %1,1b ; jra 4f\n\
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. = 5b + 0x20\n\
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moveb %5,%/a0@(3)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f\n\
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. = 5b + 0x40\n\
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moveb %5,%/a0@(2)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f\n\
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. = 5b + 0x60\n\
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movew %5,%/a0@(2)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f\n\
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. = 5b + 0x80\n\
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moveb %5,%/a0@(1)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0xa0\n\
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moveb %5,%/a0@(3) ; moveb %5,%/a0@(1)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0xc0\n\
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movew %5,%/a0@(1)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0xe0\n\
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movew %5,%/a0@(2) ; moveb %5,%/a0@(1)\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x100\n\
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moveb %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x120\n\
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moveb %5,%/a0@(3) ; moveb %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x140\n\
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moveb %5,%/a0@(2) ; moveb %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x160\n\
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movew %5,%/a0@(2) ; moveb %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x180\n\
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movew %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x1a0\n\
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moveb %5,%/a0@(3) ; movew %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x1c0\n\
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moveb %5,%/a0@(2) ; movew %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; dbra %1,1b ; jra 4f ;\n\
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. = 5b + 0x1e0\n\
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movel %5,%/a0@\n\
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andl %/d1,%/d1 ; jne 2b ; \n\
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3: dbra %1,1b ; \n\
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4:\n"\
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: "=a" (addr), /* %0 */ \
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"=d" (count), /* %1 */ \
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"=d" (shift), /* %2 */ \
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"=a" (stipple) /* %3 */ \
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: "0" (addr), /* %4 */ \
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"d" (value), /* %5 */ \
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"a" (width), /* %6 */ \
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"1" (count-1), /* %7 */ \
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"2" (shift), /* %8 */ \
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"3" (stipple) /* %9 */ \
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: /* ctemp */ "d0", \
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/* c */ "d1", \
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/* lshift */ "d2", \
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/* rshift */ "d3", \
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/* atemp */ "a0", \
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/* case */ "a1")
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