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Diffstat (limited to 'system/mmx/pixel_ca_s1.s')
| -rw-r--r-- | system/mmx/pixel_ca_s1.s | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/system/mmx/pixel_ca_s1.s b/system/mmx/pixel_ca_s1.s deleted file mode 100644 index d9c730f..0000000 --- a/system/mmx/pixel_ca_s1.s +++ /dev/null @@ -1,189 +0,0 @@ -# Pure Data Packet mmx routine. -# Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# - - # this file contains assembler routines for 2D 1 bit cellular automata - # processing. it is organized around a feeder kernel and a - # stack based bit processor (virtual forth machine) - # - # the feeder kernel is responsable for loading/storing CA cells - # from/to memory. data in memory is organized as a scanline - # encoded toroidial bitplane (lsb = left). to simplify the kernel, the top - # left corner of the rectangular grid of pixels will shift down - # every processing step. - # - # the stack machine has the following architecture: - # CA stack: %esi, TOS: %mm0 (32x2 pixels. lsw = top row) - # CA horizon: %mm4-%mm7 (64x4 pixels. %mm4 = top row) - # - # the stack size / organization is not known to the stack machine. - # it can be thought of as operating on a 3x3 cell neightbourhood. - # the only purpose of forth program is to determine the CA local update rule. - # - # the machine is supposed to be very minimal. no looping control. - # no adressing modes. no conditional code (hey, this is an experiment!) - # so recursion is not allowed (no way to stop it) - # there are 9 words to load the cell neigbourhood on the stack. - # the rest is just logic and stack manips. - - - # this file contains pure asm macros. it is to be included before assembly - # after scaforth.pl has processed the .scaf file - - - # *************************** CA CELL ACCESS MACROS ***************************** - # fetchTL - fetchBR - - # shift / load rectangle macros: - - # shift rectangle horizontal - # result is in reg1 - .macro shift reg1 reg2 count - psllq $(32+\count), \reg1 - psrlq $(32-\count), \reg2 - psrlq $32, \reg1 - psllq $32, \reg2 - por \reg2, \reg1 - .endm - - .macro ldtop reg1 reg2 - movq %mm4, \reg1 - movq %mm5, \reg2 - .endm - - .macro ldcenter reg1 reg2 - movq %mm5, \reg1 - movq %mm6, \reg2 - .endm - - .macro ldbottom reg1 reg2 - movq %mm6, \reg1 - movq %mm7, \reg2 - .endm - - - # fetch from top row - - # fetch the top left square - .macro fetchTL - ldtop %mm0, %mm1 - shift %mm0, %mm1, -1 - .endm - - # fetch the top mid square - .macro fetchTM - ldtop %mm0, %mm1 - shift %mm0, %mm1, 0 - .endm - - # fetch the top right square - .macro fetchTR - ldtop %mm0, %mm1 - shift %mm0, %mm1, 1 - .endm - - - - # fetch from center row - - # fetch the mid left square - .macro fetchML - ldcenter %mm0, %mm1 - shift %mm0, %mm1, -1 - .endm - - # fetch the mid mid square - .macro fetchMM - ldcenter %mm0, %mm1 - shift %mm0, %mm1, 0 - .endm - - # fetch the mid right square - .macro fetchMR - ldcenter %mm0, %mm1 - shift %mm0, %mm1, 1 - .endm - - - - - - # fetch from bottom row - - # fetch the bottom left square - .macro fetchBL - ldbottom %mm0, %mm1 - shift %mm0, %mm1, -1 - .endm - - # fetch the bottom mid square - .macro fetchBM - ldbottom %mm0, %mm1 - shift %mm0, %mm1, 0 - .endm - - # fetch the bottom right square - .macro fetchBR - ldbottom %mm0, %mm1 - shift %mm0, %mm1, 1 - .endm - - - - # *************************** CA STACK MANIP MACROS ***************************** - # dup drop dropdup swap nip dropover - - .macro dup - lea -8(%esi), %esi - movq %mm0, (%esi) - .endm - - .macro drop - movq (%esi), %mm0 - lea 8(%esi), %esi - .endm - - .macro dropdup - movq (%esi), %mm0 - .endm - - .macro swap - movq (%esi), %mm1 - movq %mm0, (%esi) - movq %mm1, %mm0 - .endm - - .macro nip - lea 8(%esi), %esi - .endm - - .macro dropover - movq 8(%esi), %mm0 - .endm - - - # *************************** CA BOOLEAN LOGIC MACROS ***************************** - # overxor - - .macro overxor - pxor (%esi), %mm0 - .endm - - - - - |