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-rw-r--r--externals/gridflow/cpu/mmx.rb225
1 files changed, 0 insertions, 225 deletions
diff --git a/externals/gridflow/cpu/mmx.rb b/externals/gridflow/cpu/mmx.rb
deleted file mode 100644
index 1a3b15d3..00000000
--- a/externals/gridflow/cpu/mmx.rb
+++ /dev/null
@@ -1,225 +0,0 @@
-=begin
- $Id: mmx.rb,v 1.1 2005-10-04 02:02:14 matju Exp $
-
- GridFlow
- Copyright (c) 2001,2002,2003,2004 by Mathieu Bouchard
-
- 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.
-
- See file ../COPYING for further informations on licensing terms.
-
- 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-=end
-
-STDOUT.reopen ARGV[0], "w"
-$loader = File.open ARGV[1], "w"
-$count = 0
-$lines = 0
-
-puts "; generated by/for GridFlow 0.8.0"
-$loader.puts "#include \"../base/grid.h.fcs\"\nextern \"C\" {"
-
-# this class is not really used yet (only self.make)
-class AsmFunction
- def initialize(name)
- @name = name
- @label_count = 1
- end
- def self.make(name)
- puts "", "GLOBAL #{name}", "#{name}:"
- puts "push ebp", "mov ebp,esp", "push esi", "push edi"
- yield AsmFunction.new(name)
- puts "pop edi", "pop esi", "leave", "ret", ""
- end
- def make_until(*ops)
- a = @label_count
- b = @label_count+1
- @label_count+=2
- ops[-1]<<" #{@name}_#{b}"
- puts "#{@name}_#{a}: ", *ops
- yield
- puts "jmp #{@name}_#{a}"
- puts "#{@name}_#{b}:"
- end
-end
-
-$sizeof = {
- :uint8 => 1,
- :int16 => 2,
- :int32 => 4,
- :int64 => 8,
- :float32 => 4,
- :float64 => 8,
-}
-
-$accum = {
- :uint8 => "al",
- :int16 => "ax",
- :int32 => "eax",
-}
-
-$asm_type = {
- :uint8 => "byte",
- :int16 => "word",
- :int32 => "dword",
- :int64 => "qword",
-}
-
-# in the following, the opcode "_" means no such thing seems available.
-# also >> for x86 ought to be shr in the uint8 case.
-# btw, i got all of the MMX information from the NASM manual, Appendix B.
-$opcodes = {
-# [--GF--|--x86--|--mmx-et-al----------------------------------------]
-# [ | |-uint8-|-int16-|-int32-|-int64-|-float32-|-float64-]
- :add => %w[ + add paddb paddw paddd paddq ],
- :sub => %w[ - sub psubb psubw psubd psubq ],
- :and => %w[ & and pand pand pand pand ],
- :xor => %w[ ^ xor pxor pxor pxor pxor ],
- :or => %w[ | or por por por por ],
-# :max => %w[ max _ pmaxub pmaxsw _ _ ], # not plain MMX !!! (req.Katmai)
-# :min => %w[ min _ pminub pminsw _ _ ], # not plain MMX !!! (req.Katmai)
-# :eq => %w[ == _ pcmpeqb pcmpeqw pcmpeqd _ ],
-# :gt => %w[ > _ pcmpgtb pcmpgtw pcmpgtd _ ],
-# :shl => %w[ << shl _ psllw pslld psllq ], # noncommutative
-# :shr => %w[ >> sar _ psraw psrad _ ], # noncommutative
-# :clipadd => %w[ clip+ _ paddusb paddsw _ _ ], # future use
-# :clipsub => %w[ clip- _ psubusb psubsw _ _ ], # future use
-# :andnot => %w[ &not _ pandn pandn pandn pandn ], # not planned
-}
-
-$opcodes.each {|k,op|
- op.map! {|x| if x=="_" then nil else x end }
- STDERR.puts op.inspect
-}
-
-$decls = ""
-$install = ""
-
-def make_fun_map(op,type)
- s="mmx_#{type}_map_#{op}"
- size = $sizeof[type]
- accum = $accum[type]
- sym = $opcodes[op][0]
- opcode = $opcodes[op][1]
- mopcode = $opcodes[op][size+(size<4 ? 1 : 0)]
- return if not mopcode
- AsmFunction.make(s) {|a|
- puts "mov ecx,[ebp+8]", "mov esi,[ebp+12]", "mov eax,[ebp+16]"
- puts "mov dx,ax", "shl eax,8", "mov al,dl" if size==1
- puts "mov edx,eax", "shl eax,16", "mov ax,dx" if size<=2
- puts "push eax", "push eax", "movq mm7,[esp]", "add esp,8"
- foo = proc {|n|
- a.make_until("cmp ecx,#{8/size*n}","jb near") {
- 0.step(n,4) {|k|
- nn=[n-k,4].min
- o=(0..3).map{|x| 8*(x+k) }
- for i in 0...nn do puts "movq mm#{i},[esi+#{o[i]}]" end
- for i in 0...nn do puts "#{mopcode} mm#{i},mm7" end
- for i in 0...nn do puts "movq [esi+#{o[i]}],mm#{i}" end
- }
- puts "lea esi,[esi+#{8*n}]", "lea ecx,[ecx-#{8/size*n}]"
- }
- }
- foo.call 4
- foo.call 1
- a.make_until("test ecx,ecx", "jz") {
- puts "#{opcode} #{$asm_type[type]} [esi],#{accum}", "lea esi,[esi+#{size}]"
- puts "dec ecx"
- }
- puts "emms"
- }
- $decls << "void #{s}(int,#{type}*,#{type});\n"
- $install << "FIX2PTR(Numop,rb_hash_aref(op_dict,SYM(#{sym})))"
- $install << "->on_#{type}.op_map = #{s};\n"
- $count += 1
-end
-
-def make_fun_zip(op,type)
-s="mmx_#{type}_zip_#{op}"
- size = $sizeof[type]
- accum = $accum[type]
- sym = $opcodes[op][0]
- opcode = $opcodes[op][1]
- mopcode = $opcodes[op][size+(size<4 ? 1 : 0)]
- return if not mopcode
- AsmFunction.make(s) {|a|
- puts "mov ecx,[ebp+8]", "mov edi,[ebp+12]",
- "mov esi,[ebp+16]"#, "mov ebx,[ebp+20]"
- foo = proc {|n|
- a.make_until("cmp ecx,#{8/size*n}","jb near") {
- 0.step(n,4) {|k|
- nn=[n-k,4].min
- o=(0..3).map{|x| 8*(x+k) }
- for i in 0...nn do puts "movq mm#{i},[edi+#{o[i]}]" end
- for i in 0...nn do puts "movq mm#{i+4},[esi+#{o[i]}]" end
- for i in 0...nn do puts "#{mopcode} mm#{i},mm#{i+4}" end
- for i in 0...nn do puts "movq [edi+#{o[i]}],mm#{i}" end
- }
- #for i in 0...n do puts "movq [ebx+#{8*i}],mm#{i}" end
- puts "lea edi,[edi+#{8*n}]"
- puts "lea esi,[esi+#{8*n}]"
- #puts "lea ebx,[ebx+#{8*n}]"
- puts "lea ecx,[ecx-#{8/size*n}]"
- }
- }
- foo.call 4
- foo.call 1
- a.make_until("test ecx,ecx", "jz") {
- # requires commutativity ??? fails with shl, shr
- puts "mov #{accum},[esi]"
- puts "#{opcode} #{$asm_type[type]} [edi],#{accum}"
- #puts "mov #{accum},[edi]"
- #puts "#{opcode} #{accum},[esi]"
- #puts "mov [ebx],#{accum}"
- puts "lea edi,[edi+#{size}]"
- puts "lea esi,[esi+#{size}]"
- #puts "lea ebx,[ebx+#{size}]"
- puts "dec ecx"
- }
- puts "emms"
- }
- #$decls << "void #{s}(int,#{type}*,#{type}*,#{type}*);\n"
- $decls << "void #{s}(int,#{type}*,#{type}*);\n"
- $install << "FIX2PTR(Numop,rb_hash_aref(op_dict,SYM(#{sym})))"
- $install << "->on_#{type}.op_zip = #{s};\n"
- $count += 1
-end
-
-for op in $opcodes.keys do
- for type in [:uint8, :int16#, :int32
- ] do
- make_fun_map(op,type)
- make_fun_zip(op,type)
- end
-end
-
-$loader.puts $decls
-$loader.puts %`
-}; /* extern */
-#include <stdlib.h>
-void startup_mmx_loader () {/*bogus*/}
-void startup_mmx () {
- if (getenv("NO_MMX")) return;
- if (EVAL(\"GridFlow.bridge_name\")!=Qnil) gfpost(\"startup_cpu: using MMX optimisations\");
- #{$install}
-}`
-
-STDERR.puts "automatically generated #{$count} MMX asm functions"
-
-=begin notes:
-CPUID has a bit for detecting MMX
-PACKSSDW PACKSSWB PACKUSWB = saturation-casting
-PCMPxx: Compare Packed Integers
-PMULHW, PMULLW: Multiply Packed _unsigned_ 16-bit Integers, and Store
-PUNPCKxxx: Unpack and Interleave Data
-=end
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 09:26:42 +0000