Renamed lib to deps so github will ignore it for language stats

1 files changed, 0 insertions, 2360 deletions

diff --git a/lib/LuaJIT/dynasm/dasm_x86.lua b/lib/LuaJIT/dynasm/dasm_x86.lua
deleted file mode 100644
index 7f536af..0000000
--- a/lib/LuaJIT/dynasm/dasm_x86.lua
+++ /dev/null
@@ -1,2360 +0,0 @@
-------------------------------------------------------------------------------
--- DynASM x86/x64 module.
---
--- Copyright (C) 2005-2017 Mike Pall. All rights reserved.
--- See dynasm.lua for full copyright notice.
-------------------------------------------------------------------------------
-
-local x64 = x64
-
--- Module information:
-local _info = {
-  arch =	x64 and "x64" or "x86",
-  description =	"DynASM x86/x64 module",
-  version =	"1.4.0",
-  vernum =	 10400,
-  release =	"2015-10-18",
-  author =	"Mike Pall",
-  license =	"MIT",
-}
-
--- Exported glue functions for the arch-specific module.
-local _M = { _info = _info }
-
--- Cache library functions.
-local type, tonumber, pairs, ipairs = type, tonumber, pairs, ipairs
-local assert, unpack, setmetatable = assert, unpack or table.unpack, setmetatable
-local _s = string
-local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
-local find, match, gmatch, gsub = _s.find, _s.match, _s.gmatch, _s.gsub
-local concat, sort, remove = table.concat, table.sort, table.remove
-local bit = bit or require("bit")
-local band, bxor, shl, shr = bit.band, bit.bxor, bit.lshift, bit.rshift
-
--- Inherited tables and callbacks.
-local g_opt, g_arch
-local wline, werror, wfatal, wwarn
-
--- Action name list.
--- CHECK: Keep this in sync with the C code!
-local action_names = {
-  -- int arg, 1 buffer pos:
-  "DISP",  "IMM_S", "IMM_B", "IMM_W", "IMM_D",  "IMM_WB", "IMM_DB",
-  -- action arg (1 byte), int arg, 1 buffer pos (reg/num):
-  "VREG", "SPACE",
-  -- ptrdiff_t arg, 1 buffer pos (address): !x64
-  "SETLABEL", "REL_A",
-  -- action arg (1 byte) or int arg, 2 buffer pos (link, offset):
-  "REL_LG", "REL_PC",
-  -- action arg (1 byte) or int arg, 1 buffer pos (link):
-  "IMM_LG", "IMM_PC",
-  -- action arg (1 byte) or int arg, 1 buffer pos (offset):
-  "LABEL_LG", "LABEL_PC",
-  -- action arg (1 byte), 1 buffer pos (offset):
-  "ALIGN",
-  -- action args (2 bytes), no buffer pos.
-  "EXTERN",
-  -- action arg (1 byte), no buffer pos.
-  "ESC",
-  -- no action arg, no buffer pos.
-  "MARK",
-  -- action arg (1 byte), no buffer pos, terminal action:
-  "SECTION",
-  -- no args, no buffer pos, terminal action:
-  "STOP"
-}
-
--- Maximum number of section buffer positions for dasm_put().
--- CHECK: Keep this in sync with the C code!
-local maxsecpos = 25 -- Keep this low, to avoid excessively long C lines.
-
--- Action name -> action number (dynamically generated below).
-local map_action = {}
--- First action number. Everything below does not need to be escaped.
-local actfirst = 256-#action_names
-
--- Action list buffer and string (only used to remove dupes).
-local actlist = {}
-local actstr = ""
-
--- Argument list for next dasm_put(). Start with offset 0 into action list.
-local actargs = { 0 }
-
--- Current number of section buffer positions for dasm_put().
-local secpos = 1
-
--- VREG kind encodings, pre-shifted by 5 bits.
-local map_vreg = {
-  ["modrm.rm.m"] = 0x00,
-  ["modrm.rm.r"] = 0x20,
-  ["opcode"] =     0x20,
-  ["sib.base"] =   0x20,
-  ["sib.index"] =  0x40,
-  ["modrm.reg"] =  0x80,
-  ["vex.v"] =      0xa0,
-  ["imm.hi"] =     0xc0,
-}
-
--- Current number of VREG actions contributing to REX/VEX shrinkage.
-local vreg_shrink_count = 0
-
-------------------------------------------------------------------------------
-
--- Compute action numbers for action names.
-for n,name in ipairs(action_names) do
-  local num = actfirst + n - 1
-  map_action[name] = num
-end
-
--- Dump action names and numbers.
-local function dumpactions(out)
-  out:write("DynASM encoding engine action codes:\n")
-  for n,name in ipairs(action_names) do
-    local num = map_action[name]
-    out:write(format("  %-10s %02X  %d\n", name, num, num))
-  end
-  out:write("\n")
-end
-
--- Write action list buffer as a huge static C array.
-local function writeactions(out, name)
-  local nn = #actlist
-  local last = actlist[nn] or 255
-  actlist[nn] = nil -- Remove last byte.
-  if nn == 0 then nn = 1 end
-  out:write("static const unsigned char ", name, "[", nn, "] = {\n")
-  local s = "  "
-  for n,b in ipairs(actlist) do
-    s = s..b..","
-    if #s >= 75 then
-      assert(out:write(s, "\n"))
-      s = "  "
-    end
-  end
-  out:write(s, last, "\n};\n\n") -- Add last byte back.
-end
-
-------------------------------------------------------------------------------
-
--- Add byte to action list.
-local function wputxb(n)
-  assert(n >= 0 and n <= 255 and n % 1 == 0, "byte out of range")
-  actlist[#actlist+1] = n
-end
-
--- Add action to list with optional arg. Advance buffer pos, too.
-local function waction(action, a, num)
-  wputxb(assert(map_action[action], "bad action name `"..action.."'"))
-  if a then actargs[#actargs+1] = a end
-  if a or num then secpos = secpos + (num or 1) end
-end
-
--- Optionally add a VREG action.
-local function wvreg(kind, vreg, psz, sk, defer)
-  if not vreg then return end
-  waction("VREG", vreg)
-  local b = assert(map_vreg[kind], "bad vreg kind `"..vreg.."'")
-  if b < (sk or 0) then
-    vreg_shrink_count = vreg_shrink_count + 1
-  end
-  if not defer then
-    b = b + vreg_shrink_count * 8
-    vreg_shrink_count = 0
-  end
-  wputxb(b + (psz or 0))
-end
-
--- Add call to embedded DynASM C code.
-local function wcall(func, args)
-  wline(format("dasm_%s(Dst, %s);", func, concat(args, ", ")), true)
-end
-
--- Delete duplicate action list chunks. A tad slow, but so what.
-local function dedupechunk(offset)
-  local al, as = actlist, actstr
-  local chunk = char(unpack(al, offset+1, #al))
-  local orig = find(as, chunk, 1, true)
-  if orig then
-    actargs[1] = orig-1 -- Replace with original offset.
-    for i=offset+1,#al do al[i] = nil end -- Kill dupe.
-  else
-    actstr = as..chunk
-  end
-end
-
--- Flush action list (intervening C code or buffer pos overflow).
-local function wflush(term)
-  local offset = actargs[1]
-  if #actlist == offset then return end -- Nothing to flush.
-  if not term then waction("STOP") end -- Terminate action list.
-  dedupechunk(offset)
-  wcall("put", actargs) -- Add call to dasm_put().
-  actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
-  secpos = 1 -- The actionlist offset occupies a buffer position, too.
-end
-
--- Put escaped byte.
-local function wputb(n)
-  if n >= actfirst then waction("ESC") end -- Need to escape byte.
-  wputxb(n)
-end
-
-------------------------------------------------------------------------------
-
--- Global label name -> global label number. With auto assignment on 1st use.
-local next_global = 10
-local map_global = setmetatable({}, { __index = function(t, name)
-  if not match(name, "^[%a_][%w_@]*$") then werror("bad global label") end
-  local n = next_global
-  if n > 246 then werror("too many global labels") end
-  next_global = n + 1
-  t[name] = n
-  return n
-end})
-
--- Dump global labels.
-local function dumpglobals(out, lvl)
-  local t = {}
-  for name, n in pairs(map_global) do t[n] = name end
-  out:write("Global labels:\n")
-  for i=10,next_global-1 do
-    out:write(format("  %s\n", t[i]))
-  end
-  out:write("\n")
-end
-
--- Write global label enum.
-local function writeglobals(out, prefix)
-  local t = {}
-  for name, n in pairs(map_global) do t[n] = name end
-  out:write("enum {\n")
-  for i=10,next_global-1 do
-    out:write("  ", prefix, gsub(t[i], "@.*", ""), ",\n")
-  end
-  out:write("  ", prefix, "_MAX\n};\n")
-end
-
--- Write global label names.
-local function writeglobalnames(out, name)
-  local t = {}
-  for name, n in pairs(map_global) do t[n] = name end
-  out:write("static const char *const ", name, "[] = {\n")
-  for i=10,next_global-1 do
-    out:write("  \"", t[i], "\",\n")
-  end
-  out:write("  (const char *)0\n};\n")
-end
-
-------------------------------------------------------------------------------
-
--- Extern label name -> extern label number. With auto assignment on 1st use.
-local next_extern = -1
-local map_extern = setmetatable({}, { __index = function(t, name)
-  -- No restrictions on the name for now.
-  local n = next_extern
-  if n < -256 then werror("too many extern labels") end
-  next_extern = n - 1
-  t[name] = n
-  return n
-end})
-
--- Dump extern labels.
-local function dumpexterns(out, lvl)
-  local t = {}
-  for name, n in pairs(map_extern) do t[-n] = name end
-  out:write("Extern labels:\n")
-  for i=1,-next_extern-1 do
-    out:write(format("  %s\n", t[i]))
-  end
-  out:write("\n")
-end
-
--- Write extern label names.
-local function writeexternnames(out, name)
-  local t = {}
-  for name, n in pairs(map_extern) do t[-n] = name end
-  out:write("static const char *const ", name, "[] = {\n")
-  for i=1,-next_extern-1 do
-    out:write("  \"", t[i], "\",\n")
-  end
-  out:write("  (const char *)0\n};\n")
-end
-
-------------------------------------------------------------------------------
-
--- Arch-specific maps.
-local map_archdef = {}		-- Ext. register name -> int. name.
-local map_reg_rev = {}		-- Int. register name -> ext. name.
-local map_reg_num = {}		-- Int. register name -> register number.
-local map_reg_opsize = {}	-- Int. register name -> operand size.
-local map_reg_valid_base = {}	-- Int. register name -> valid base register?
-local map_reg_valid_index = {}	-- Int. register name -> valid index register?
-local map_reg_needrex = {}	-- Int. register name -> need rex vs. no rex.
-local reg_list = {}		-- Canonical list of int. register names.
-
-local map_type = {}		-- Type name -> { ctype, reg }
-local ctypenum = 0		-- Type number (for _PTx macros).
-
-local addrsize = x64 and "q" or "d"	-- Size for address operands.
-
--- Helper functions to fill register maps.
-local function mkrmap(sz, cl, names)
-  local cname = format("@%s", sz)
-  reg_list[#reg_list+1] = cname
-  map_archdef[cl] = cname
-  map_reg_rev[cname] = cl
-  map_reg_num[cname] = -1
-  map_reg_opsize[cname] = sz
-  if sz == addrsize or sz == "d" then
-    map_reg_valid_base[cname] = true
-    map_reg_valid_index[cname] = true
-  end
-  if names then
-    for n,name in ipairs(names) do
-      local iname = format("@%s%x", sz, n-1)
-      reg_list[#reg_list+1] = iname
-      map_archdef[name] = iname
-      map_reg_rev[iname] = name
-      map_reg_num[iname] = n-1
-      map_reg_opsize[iname] = sz
-      if sz == "b" and n > 4 then map_reg_needrex[iname] = false end
-      if sz == addrsize or sz == "d" then
-	map_reg_valid_base[iname] = true
-	map_reg_valid_index[iname] = true
-      end
-    end
-  end
-  for i=0,(x64 and sz ~= "f") and 15 or 7 do
-    local needrex = sz == "b" and i > 3
-    local iname = format("@%s%x%s", sz, i, needrex and "R" or "")
-    if needrex then map_reg_needrex[iname] = true end
-    local name
-    if sz == "o" or sz == "y" then name = format("%s%d", cl, i)
-    elseif sz == "f" then name = format("st%d", i)
-    else name = format("r%d%s", i, sz == addrsize and "" or sz) end
-    map_archdef[name] = iname
-    if not map_reg_rev[iname] then
-      reg_list[#reg_list+1] = iname
-      map_reg_rev[iname] = name
-      map_reg_num[iname] = i
-      map_reg_opsize[iname] = sz
-      if sz == addrsize or sz == "d" then
-	map_reg_valid_base[iname] = true
-	map_reg_valid_index[iname] = true
-      end
-    end
-  end
-  reg_list[#reg_list+1] = ""
-end
-
--- Integer registers (qword, dword, word and byte sized).
-if x64 then
-  mkrmap("q", "Rq", {"rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi"})
-end
-mkrmap("d", "Rd", {"eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi"})
-mkrmap("w", "Rw", {"ax", "cx", "dx", "bx", "sp", "bp", "si", "di"})
-mkrmap("b", "Rb", {"al", "cl", "dl", "bl", "ah", "ch", "dh", "bh"})
-map_reg_valid_index[map_archdef.esp] = false
-if x64 then map_reg_valid_index[map_archdef.rsp] = false end
-if x64 then map_reg_needrex[map_archdef.Rb] = true end
-map_archdef["Ra"] = "@"..addrsize
-
--- FP registers (internally tword sized, but use "f" as operand size).
-mkrmap("f", "Rf")
-
--- SSE registers (oword sized, but qword and dword accessible).
-mkrmap("o", "xmm")
-
--- AVX registers (yword sized, but oword, qword and dword accessible).
-mkrmap("y", "ymm")
-
--- Operand size prefixes to codes.
-local map_opsize = {
-  byte = "b", word = "w", dword = "d", qword = "q", oword = "o", yword = "y",
-  tword = "t", aword = addrsize,
-}
-
--- Operand size code to number.
-local map_opsizenum = {
-  b = 1, w = 2, d = 4, q = 8, o = 16, y = 32, t = 10,
-}
-
--- Operand size code to name.
-local map_opsizename = {
-  b = "byte", w = "word", d = "dword", q = "qword", o = "oword", y = "yword",
-  t = "tword", f = "fpword",
-}
-
--- Valid index register scale factors.
-local map_xsc = {
-  ["1"] = 0, ["2"] = 1, ["4"] = 2, ["8"] = 3,
-}
-
--- Condition codes.
-local map_cc = {
-  o = 0, no = 1, b = 2, nb = 3, e = 4, ne = 5, be = 6, nbe = 7,
-  s = 8, ns = 9, p = 10, np = 11, l = 12, nl = 13, le = 14, nle = 15,
-  c = 2, nae = 2, nc = 3, ae = 3, z = 4, nz = 5, na = 6, a = 7,
-  pe = 10, po = 11, nge = 12, ge = 13, ng = 14, g = 15,
-}
-
-
--- Reverse defines for registers.
-function _M.revdef(s)
-  return gsub(s, "@%w+", map_reg_rev)
-end
-
--- Dump register names and numbers
-local function dumpregs(out)
-  out:write("Register names, sizes and internal numbers:\n")
-  for _,reg in ipairs(reg_list) do
-    if reg == "" then
-      out:write("\n")
-    else
-      local name = map_reg_rev[reg]
-      local num = map_reg_num[reg]
-      local opsize = map_opsizename[map_reg_opsize[reg]]
-      out:write(format("  %-5s %-8s %s\n", name, opsize,
-		       num < 0 and "(variable)" or num))
-    end
-  end
-end
-
-------------------------------------------------------------------------------
-
--- Put action for label arg (IMM_LG, IMM_PC, REL_LG, REL_PC).
-local function wputlabel(aprefix, imm, num)
-  if type(imm) == "number" then
-    if imm < 0 then
-      waction("EXTERN")
-      wputxb(aprefix == "IMM_" and 0 or 1)
-      imm = -imm-1
-    else
-      waction(aprefix.."LG", nil, num);
-    end
-    wputxb(imm)
-  else
-    waction(aprefix.."PC", imm, num)
-  end
-end
-
--- Put signed byte or arg.
-local function wputsbarg(n)
-  if type(n) == "number" then
-    if n < -128 or n > 127 then
-      werror("signed immediate byte out of range")
-    end
-    if n < 0 then n = n + 256 end
-    wputb(n)
-  else waction("IMM_S", n) end
-end
-
--- Put unsigned byte or arg.
-local function wputbarg(n)
-  if type(n) == "number" then
-    if n < 0 or n > 255 then
-      werror("unsigned immediate byte out of range")
-    end
-    wputb(n)
-  else waction("IMM_B", n) end
-end
-
--- Put unsigned word or arg.
-local function wputwarg(n)
-  if type(n) == "number" then
-    if shr(n, 16) ~= 0 then
-      werror("unsigned immediate word out of range")
-    end
-    wputb(band(n, 255)); wputb(shr(n, 8));
-  else waction("IMM_W", n) end
-end
-
--- Put signed or unsigned dword or arg.
-local function wputdarg(n)
-  local tn = type(n)
-  if tn == "number" then
-    wputb(band(n, 255))
-    wputb(band(shr(n, 8), 255))
-    wputb(band(shr(n, 16), 255))
-    wputb(shr(n, 24))
-  elseif tn == "table" then
-    wputlabel("IMM_", n[1], 1)
-  else
-    waction("IMM_D", n)
-  end
-end
-
--- Put operand-size dependent number or arg (defaults to dword).
-local function wputszarg(sz, n)
-  if not sz or sz == "d" or sz == "q" then wputdarg(n)
-  elseif sz == "w" then wputwarg(n)
-  elseif sz == "b" then wputbarg(n)
-  elseif sz == "s" then wputsbarg(n)
-  else werror("bad operand size") end
-end
-
--- Put multi-byte opcode with operand-size dependent modifications.
-local function wputop(sz, op, rex, vex, vregr, vregxb)
-  local psz, sk = 0, nil
-  if vex then
-    local tail
-    if vex.m == 1 and band(rex, 11) == 0 then
-      if x64 and vregxb then
-	sk = map_vreg["modrm.reg"]
-      else
-	wputb(0xc5)
-      tail = shl(bxor(band(rex, 4), 4), 5)
-      psz = 3
-      end
-    end
-    if not tail then
-      wputb(0xc4)
-      wputb(shl(bxor(band(rex, 7), 7), 5) + vex.m)
-      tail = shl(band(rex, 8), 4)
-      psz = 4
-    end
-    local reg, vreg = 0, nil
-    if vex.v then
-      reg = vex.v.reg
-      if not reg then werror("bad vex operand") end
-      if reg < 0 then reg = 0; vreg = vex.v.vreg end
-    end
-    if sz == "y" or vex.l then tail = tail + 4 end
-    wputb(tail + shl(bxor(reg, 15), 3) + vex.p)
-    wvreg("vex.v", vreg)
-    rex = 0
-    if op >= 256 then werror("bad vex opcode") end
-  else
-    if rex ~= 0 then
-      if not x64 then werror("bad operand size") end
-    elseif (vregr or vregxb) and x64 then
-      rex = 0x10
-      sk = map_vreg["vex.v"]
-    end
-  end
-  local r
-  if sz == "w" then wputb(102) end
-  -- Needs >32 bit numbers, but only for crc32 eax, word [ebx]
-  if op >= 4294967296 then r = op%4294967296 wputb((op-r)/4294967296) op = r end
-  if op >= 16777216 then wputb(shr(op, 24)); op = band(op, 0xffffff) end
-  if op >= 65536 then
-    if rex ~= 0 then
-      local opc3 = band(op, 0xffff00)
-      if opc3 == 0x0f3a00 or opc3 == 0x0f3800 then
-	wputb(64 + band(rex, 15)); rex = 0; psz = 2
-      end
-    end
-    wputb(shr(op, 16)); op = band(op, 0xffff); psz = psz + 1
-  end
-  if op >= 256 then
-    local b = shr(op, 8)
-    if b == 15 and rex ~= 0 then wputb(64 + band(rex, 15)); rex = 0; psz = 2 end
-    wputb(b); op = band(op, 255); psz = psz + 1
-  end
-  if rex ~= 0 then wputb(64 + band(rex, 15)); psz = 2 end
-  if sz == "b" then op = op - 1 end
-  wputb(op)
-  return psz, sk
-end
-
--- Put ModRM or SIB formatted byte.
-local function wputmodrm(m, s, rm, vs, vrm)
-  assert(m < 4 and s < 16 and rm < 16, "bad modrm operands")
-  wputb(shl(m, 6) + shl(band(s, 7), 3) + band(rm, 7))
-end
-
--- Put ModRM/SIB plus optional displacement.
-local function wputmrmsib(t, imark, s, vsreg, psz, sk)
-  local vreg, vxreg
-  local reg, xreg = t.reg, t.xreg
-  if reg and reg < 0 then reg = 0; vreg = t.vreg end
-  if xreg and xreg < 0 then xreg = 0; vxreg = t.vxreg end
-  if s < 0 then s = 0 end
-
-  -- Register mode.
-  if sub(t.mode, 1, 1) == "r" then
-    wputmodrm(3, s, reg)
-    wvreg("modrm.reg", vsreg, psz+1, sk, vreg)
-    wvreg("modrm.rm.r", vreg, psz+1, sk)
-    return
-  end
-
-  local disp = t.disp
-  local tdisp = type(disp)
-  -- No base register?
-  if not reg then
-    local riprel = false
-    if xreg then
-      -- Indexed mode with index register only.
-      -- [xreg*xsc+disp] -> (0, s, esp) (xsc, xreg, ebp)
-      wputmodrm(0, s, 4)
-      if imark == "I" then waction("MARK") end
-      wvreg("modrm.reg", vsreg, psz+1, sk, vxreg)
-      wputmodrm(t.xsc, xreg, 5)
-      wvreg("sib.index", vxreg, psz+2, sk)
-    else
-      -- Pure 32 bit displacement.
-      if x64 and tdisp ~= "table" then
-	wputmodrm(0, s, 4) -- [disp] -> (0, s, esp) (0, esp, ebp)
-	wvreg("modrm.reg", vsreg, psz+1, sk)
-	if imark == "I" then waction("MARK") end
-	wputmodrm(0, 4, 5)
-      else
-	riprel = x64
-	wputmodrm(0, s, 5) -- [disp|rip-label] -> (0, s, ebp)
-	wvreg("modrm.reg", vsreg, psz+1, sk)
-	if imark == "I" then waction("MARK") end
-      end
-    end
-    if riprel then -- Emit rip-relative displacement.
-      if match("UWSiI", imark) then
-	werror("NYI: rip-relative displacement followed by immediate")
-      end
-      -- The previous byte in the action buffer cannot be 0xe9 or 0x80-0x8f.
-      wputlabel("REL_", disp[1], 2)
-    else
-      wputdarg(disp)
-    end
-    return
-  end
-
-  local m
-  if tdisp == "number" then -- Check displacement size at assembly time.
-    if disp == 0 and band(reg, 7) ~= 5 then -- [ebp] -> [ebp+0] (in SIB, too)
-      if not vreg then m = 0 end -- Force DISP to allow [Rd(5)] -> [ebp+0]
-    elseif disp >= -128 and disp <= 127 then m = 1
-    else m = 2 end
-  elseif tdisp == "table" then
-    m = 2
-  end
-
-  -- Index register present or esp as base register: need SIB encoding.
-  if xreg or band(reg, 7) == 4 then
-    wputmodrm(m or 2, s, 4) -- ModRM.
-    if m == nil or imark == "I" then waction("MARK") end
-    wvreg("modrm.reg", vsreg, psz+1, sk, vxreg or vreg)
-    wputmodrm(t.xsc or 0, xreg or 4, reg) -- SIB.
-    wvreg("sib.index", vxreg, psz+2, sk, vreg)
-    wvreg("sib.base", vreg, psz+2, sk)
-  else
-    wputmodrm(m or 2, s, reg) -- ModRM.
-    if (imark == "I" and (m == 1 or m == 2)) or
-       (m == nil and (vsreg or vreg)) then waction("MARK") end
-    wvreg("modrm.reg", vsreg, psz+1, sk, vreg)
-    wvreg("modrm.rm.m", vreg, psz+1, sk)
-  end
-
-  -- Put displacement.
-  if m == 1 then wputsbarg(disp)
-  elseif m == 2 then wputdarg(disp)
-  elseif m == nil then waction("DISP", disp) end
-end
-
-------------------------------------------------------------------------------
-
--- Return human-readable operand mode string.
-local function opmodestr(op, args)
-  local m = {}
-  for i=1,#args do
-    local a = args[i]
-    m[#m+1] = sub(a.mode, 1, 1)..(a.opsize or "?")
-  end
-  return op.." "..concat(m, ",")
-end
-
--- Convert number to valid integer or nil.
-local function toint(expr)
-  local n = tonumber(expr)
-  if n then
-    if n % 1 ~= 0 or n < -2147483648 or n > 4294967295 then
-      werror("bad integer number `"..expr.."'")
-    end
-    return n
-  end
-end
-
--- Parse immediate expression.
-local function immexpr(expr)
-  -- &expr (pointer)
-  if sub(expr, 1, 1) == "&" then
-    return "iPJ", format("(ptrdiff_t)(%s)", sub(expr,2))
-  end
-
-  local prefix = sub(expr, 1, 2)
-  -- =>expr (pc label reference)
-  if prefix == "=>" then
-    return "iJ", sub(expr, 3)
-  end
-  -- ->name (global label reference)
-  if prefix == "->" then
-    return "iJ", map_global[sub(expr, 3)]
-  end
-
-  -- [<>][1-9] (local label reference)
-  local dir, lnum = match(expr, "^([<>])([1-9])$")
-  if dir then -- Fwd: 247-255, Bkwd: 1-9.
-    return "iJ", lnum + (dir == ">" and 246 or 0)
-  end
-
-  local extname = match(expr, "^extern%s+(%S+)$")
-  if extname then
-    return "iJ", map_extern[extname]
-  end
-
-  -- expr (interpreted as immediate)
-  return "iI", expr
-end
-
--- Parse displacement expression: +-num, +-expr, +-opsize*num
-local function dispexpr(expr)
-  local disp = expr == "" and 0 or toint(expr)
-  if disp then return disp end
-  local c, dispt = match(expr, "^([+-])%s*(.+)$")
-  if c == "+" then
-    expr = dispt
-  elseif not c then
-    werror("bad displacement expression `"..expr.."'")
-  end
-  local opsize, tailops = match(dispt, "^(%w+)%s*%*%s*(.+)$")
-  local ops, imm = map_opsize[opsize], toint(tailops)
-  if ops and imm then
-    if c == "-" then imm = -imm end
-    return imm*map_opsizenum[ops]
-  end
-  local mode, iexpr = immexpr(dispt)
-  if mode == "iJ" then
-    if c == "-" then werror("cannot invert label reference") end
-    return { iexpr }
-  end
-  return expr -- Need to return original signed expression.
-end
-
--- Parse register or type expression.
-local function rtexpr(expr)
-  if not expr then return end
-  local tname, ovreg = match(expr, "^([%w_]+):(@[%w_]+)$")
-  local tp = map_type[tname or expr]
-  if tp then
-    local reg = ovreg or tp.reg
-    local rnum = map_reg_num[reg]
-    if not rnum then
-      werror("type `"..(tname or expr).."' needs a register override")
-    end
-    if not map_reg_valid_base[reg] then
-      werror("bad base register override `"..(map_reg_rev[reg] or reg).."'")
-    end
-    return reg, rnum, tp
-  end
-  return expr, map_reg_num[expr]
-end
-
--- Parse operand and return { mode, opsize, reg, xreg, xsc, disp, imm }.
-local function parseoperand(param)
-  local t = {}
-
-  local expr = param
-  local opsize, tailops = match(param, "^(%w+)%s*(.+)$")
-  if opsize then
-    t.opsize = map_opsize[opsize]
-    if t.opsize then expr = tailops end
-  end
-
-  local br = match(expr, "^%[%s*(.-)%s*%]$")
-  repeat
-    if br then
-      t.mode = "xm"
-
-      -- [disp]
-      t.disp = toint(br)
-      if t.disp then
-	t.mode = x64 and "xm" or "xmO"
-	break
-      end
-
-      -- [reg...]
-      local tp
-      local reg, tailr = match(br, "^([@%w_:]+)%s*(.*)$")
-      reg, t.reg, tp = rtexpr(reg)
-      if not t.reg then
-	-- [expr]
-	t.mode = x64 and "xm" or "xmO"
-	t.disp = dispexpr("+"..br)
-	break
-      end
-
-      if t.reg == -1 then
-	t.vreg, tailr = match(tailr, "^(%b())(.*)$")
-	if not t.vreg then werror("bad variable register expression") end
-      end
-
-      -- [xreg*xsc] or [xreg*xsc+-disp] or [xreg*xsc+-expr]
-      local xsc, tailsc = match(tailr, "^%*%s*([1248])%s*(.*)$")
-      if xsc then
-	if not map_reg_valid_index[reg] then
-	  werror("bad index register `"..map_reg_rev[reg].."'")
-	end
-	t.xsc = map_xsc[xsc]
-	t.xreg = t.reg
-	t.vxreg = t.vreg
-	t.reg = nil
-	t.vreg = nil
-	t.disp = dispexpr(tailsc)
-	break
-      end
-      if not map_reg_valid_base[reg] then
-	werror("bad base register `"..map_reg_rev[reg].."'")
-      end
-
-      -- [reg] or [reg+-disp]
-      t.disp = toint(tailr) or (tailr == "" and 0)
-      if t.disp then break end
-
-      -- [reg+xreg...]
-      local xreg, tailx = match(tailr, "^+%s*([@%w_:]+)%s*(.*)$")
-      xreg, t.xreg, tp = rtexpr(xreg)
-      if not t.xreg then
-	-- [reg+-expr]
-	t.disp = dispexpr(tailr)
-	break
-      end
-      if not map_reg_valid_index[xreg] then
-	werror("bad index register `"..map_reg_rev[xreg].."'")
-      end
-
-      if t.xreg == -1 then
-	t.vxreg, tailx = match(tailx, "^(%b())(.*)$")
-	if not t.vxreg then werror("bad variable register expression") end
-      end
-
-      -- [reg+xreg*xsc...]
-      local xsc, tailsc = match(tailx, "^%*%s*([1248])%s*(.*)$")
-      if xsc then
-	t.xsc = map_xsc[xsc]
-	tailx = tailsc
-      end
-
-      -- [...] or [...+-disp] or [...+-expr]
-      t.disp = dispexpr(tailx)
-    else
-      -- imm or opsize*imm
-      local imm = toint(expr)
-      if not imm and sub(expr, 1, 1) == "*" and t.opsize then
-	imm = toint(sub(expr, 2))
-	if imm then
-	  imm = imm * map_opsizenum[t.opsize]
-	  t.opsize = nil
-	end
-      end
-      if imm then
-	if t.opsize then werror("bad operand size override") end
-	local m = "i"
-	if imm == 1 then m = m.."1" end
-	if imm >= 4294967168 and imm <= 4294967295 then imm = imm-4294967296 end
-	if imm >= -128 and imm <= 127 then m = m.."S" end
-	t.imm = imm
-	t.mode = m
-	break
-      end
-
-      local tp
-      local reg, tailr = match(expr, "^([@%w_:]+)%s*(.*)$")
-      reg, t.reg, tp = rtexpr(reg)
-      if t.reg then
-	if t.reg == -1 then
-	  t.vreg, tailr = match(tailr, "^(%b())(.*)$")
-	  if not t.vreg then werror("bad variable register expression") end
-	end
-	-- reg
-	if tailr == "" then
-	  if t.opsize then werror("bad operand size override") end
-	  t.opsize = map_reg_opsize[reg]
-	  if t.opsize == "f" then
-	    t.mode = t.reg == 0 and "fF" or "f"
-	  else
-	    if reg == "@w4" or (x64 and reg == "@d4") then
-	      wwarn("bad idea, try again with `"..(x64 and "rsp'" or "esp'"))
-	    end
-	    t.mode = t.reg == 0 and "rmR" or (reg == "@b1" and "rmC" or "rm")
-	  end
-	  t.needrex = map_reg_needrex[reg]
-	  break
-	end
-
-	-- type[idx], type[idx].field, type->field -> [reg+offset_expr]
-	if not tp then werror("bad operand `"..param.."'") end
-	t.mode = "xm"
-	t.disp = format(tp.ctypefmt, tailr)
-      else
-	t.mode, t.imm = immexpr(expr)
-	if sub(t.mode, -1) == "J" then
-	  if t.opsize and t.opsize ~= addrsize then
-	    werror("bad operand size override")
-	  end
-	  t.opsize = addrsize
-	end
-      end
-    end
-  until true
-  return t
-end
-
-------------------------------------------------------------------------------
--- x86 Template String Description
--- ===============================
---
--- Each template string is a list of [match:]pattern pairs,
--- separated by "|". The first match wins. No match means a
--- bad or unsupported combination of operand modes or sizes.
---
--- The match part and the ":" is omitted if the operation has
--- no operands. Otherwise the first N characters are matched
--- against the mode strings of each of the N operands.
---
--- The mode string for each operand type is (see parseoperand()):
---   Integer register: "rm", +"R" for eax, ax, al, +"C" for cl
---   FP register:      "f",  +"F" for st0
---   Index operand:    "xm", +"O" for [disp] (pure offset)
---   Immediate:        "i",  +"S" for signed 8 bit, +"1" for 1,
---                     +"I" for arg, +"P" for pointer
---   Any:              +"J" for valid jump targets
---
--- So a match character "m" (mixed) matches both an integer register
--- and an index operand (to be encoded with the ModRM/SIB scheme).
--- But "r" matches only a register and "x" only an index operand
--- (e.g. for FP memory access operations).
---
--- The operand size match string starts right after the mode match
--- characters and ends before the ":". "dwb" or "qdwb" is assumed, if empty.
--- The effective data size of the operation is matched against this list.
---
--- If only the regular "b", "w", "d", "q", "t" operand sizes are
--- present, then all operands must be the same size. Unspecified sizes
--- are ignored, but at least one operand must have a size or the pattern
--- won't match (use the "byte", "word", "dword", "qword", "tword"
--- operand size overrides. E.g.: mov dword [eax], 1).
---
--- If the list has a "1" or "2" prefix, the operand size is taken
--- from the respective operand and any other operand sizes are ignored.
--- If the list contains only ".", all operand sizes are ignored.
--- If the list has a "/" prefix, the concatenated (mixed) operand sizes
--- are compared to the match.
---
--- E.g. "rrdw" matches for either two dword registers or two word
--- registers. "Fx2dq" matches an st0 operand plus an index operand
--- pointing to a dword (float) or qword (double).
---
--- Every character after the ":" is part of the pattern string:
---   Hex chars are accumulated to form the opcode (left to right).
---   "n"       disables the standard opcode mods
---             (otherwise: -1 for "b", o16 prefix for "w", rex.w for "q")
---   "X"       Force REX.W.
---   "r"/"R"   adds the reg. number from the 1st/2nd operand to the opcode.
---   "m"/"M"   generates ModRM/SIB from the 1st/2nd operand.
---             The spare 3 bits are either filled with the last hex digit or
---             the result from a previous "r"/"R". The opcode is restored.
---   "u"       Use VEX encoding, vvvv unused.
---   "v"/"V"   Use VEX encoding, vvvv from 1st/2nd operand (the operand is
---             removed from the list used by future characters).
---   "w"       Use VEX encoding, vvvv from 3rd operand.
---   "L"       Force VEX.L
---
--- All of the following characters force a flush of the opcode:
---   "o"/"O"   stores a pure 32 bit disp (offset) from the 1st/2nd operand.
---   "s"       stores a 4 bit immediate from the last register operand,
---             followed by 4 zero bits.
---   "S"       stores a signed 8 bit immediate from the last operand.
---   "U"       stores an unsigned 8 bit immediate from the last operand.
---   "W"       stores an unsigned 16 bit immediate from the last operand.
---   "i"       stores an operand sized immediate from the last operand.
---   "I"       dito, but generates an action code to optionally modify
---             the opcode (+2) for a signed 8 bit immediate.
---   "J"       generates one of the REL action codes from the last operand.
---
-------------------------------------------------------------------------------
-
--- Template strings for x86 instructions. Ordered by first opcode byte.
--- Unimplemented opcodes (deliberate omissions) are marked with *.
-local map_op = {
-  -- 00-05: add...
-  -- 06: *push es
-  -- 07: *pop es
-  -- 08-0D: or...
-  -- 0E: *push cs
-  -- 0F: two byte opcode prefix
-  -- 10-15: adc...
-  -- 16: *push ss
-  -- 17: *pop ss
-  -- 18-1D: sbb...
-  -- 1E: *push ds
-  -- 1F: *pop ds
-  -- 20-25: and...
-  es_0 =	"26",
-  -- 27: *daa
-  -- 28-2D: sub...
-  cs_0 =	"2E",
-  -- 2F: *das
-  -- 30-35: xor...
-  ss_0 =	"36",
-  -- 37: *aaa
-  -- 38-3D: cmp...
-  ds_0 =	"3E",
-  -- 3F: *aas
-  inc_1 =	x64 and "m:FF0m" or "rdw:40r|m:FF0m",
-  dec_1 =	x64 and "m:FF1m" or "rdw:48r|m:FF1m",
-  push_1 =	(x64 and "rq:n50r|rw:50r|mq:nFF6m|mw:FF6m" or
-			 "rdw:50r|mdw:FF6m").."|S.:6AS|ib:n6Ai|i.:68i",
-  pop_1 =	x64 and "rq:n58r|rw:58r|mq:n8F0m|mw:8F0m" or "rdw:58r|mdw:8F0m",
-  -- 60: *pusha, *pushad, *pushaw
-  -- 61: *popa, *popad, *popaw
-  -- 62: *bound rdw,x
-  -- 63: x86: *arpl mw,rw
-  movsxd_2 =	x64 and "rm/qd:63rM",
-  fs_0 =	"64",
-  gs_0 =	"65",
-  o16_0 =	"66",
-  a16_0 =	not x64 and "67" or nil,
-  a32_0 =	x64 and "67",
-  -- 68: push idw
-  -- 69: imul rdw,mdw,idw
-  -- 6A: push ib
-  -- 6B: imul rdw,mdw,S
-  -- 6C: *insb
-  -- 6D: *insd, *insw
-  -- 6E: *outsb
-  -- 6F: *outsd, *outsw
-  -- 70-7F: jcc lb
-  -- 80: add... mb,i
-  -- 81: add... mdw,i
-  -- 82: *undefined
-  -- 83: add... mdw,S
-  test_2 =	"mr:85Rm|rm:85rM|Ri:A9ri|mi:F70mi",
-  -- 86: xchg rb,mb
-  -- 87: xchg rdw,mdw
-  -- 88: mov mb,r
-  -- 89: mov mdw,r
-  -- 8A: mov r,mb
-  -- 8B: mov r,mdw
-  -- 8C: *mov mdw,seg
-  lea_2 =	"rx1dq:8DrM",
-  -- 8E: *mov seg,mdw
-  -- 8F: pop mdw
-  nop_0 =	"90",
-  xchg_2 =	"Rrqdw:90R|rRqdw:90r|rm:87rM|mr:87Rm",
-  cbw_0 =	"6698",
-  cwde_0 =	"98",
-  cdqe_0 =	"4898",
-  cwd_0 =	"6699",
-  cdq_0 =	"99",
-  cqo_0 =	"4899",
-  -- 9A: *call iw:idw
-  wait_0 =	"9B",
-  fwait_0 =	"9B",
-  pushf_0 =	"9C",
-  pushfd_0 =	not x64 and "9C",
-  pushfq_0 =	x64 and "9C",
-  popf_0 =	"9D",
-  popfd_0 =	not x64 and "9D",
-  popfq_0 =	x64 and "9D",
-  sahf_0 =	"9E",
-  lahf_0 =	"9F",
-  mov_2 =	"OR:A3o|RO:A1O|mr:89Rm|rm:8BrM|rib:nB0ri|ridw:B8ri|mi:C70mi",
-  movsb_0 =	"A4",
-  movsw_0 =	"66A5",
-  movsd_0 =	"A5",
-  cmpsb_0 =	"A6",
-  cmpsw_0 =	"66A7",
-  cmpsd_0 =	"A7",
-  -- A8: test Rb,i
-  -- A9: test Rdw,i
-  stosb_0 =	"AA",
-  stosw_0 =	"66AB",
-  stosd_0 =	"AB",
-  lodsb_0 =	"AC",
-  lodsw_0 =	"66AD",
-  lodsd_0 =	"AD",
-  scasb_0 =	"AE",
-  scasw_0 =	"66AF",
-  scasd_0 =	"AF",
-  -- B0-B7: mov rb,i
-  -- B8-BF: mov rdw,i
-  -- C0: rol... mb,i
-  -- C1: rol... mdw,i
-  ret_1 =	"i.:nC2W",
-  ret_0 =	"C3",
-  -- C4: *les rdw,mq
-  -- C5: *lds rdw,mq
-  -- C6: mov mb,i
-  -- C7: mov mdw,i
-  -- C8: *enter iw,ib
-  leave_0 =	"C9",
-  -- CA: *retf iw
-  -- CB: *retf
-  int3_0 =	"CC",
-  int_1 =	"i.:nCDU",
-  into_0 =	"CE",
-  -- CF: *iret
-  -- D0: rol... mb,1
-  -- D1: rol... mdw,1
-  -- D2: rol... mb,cl
-  -- D3: rol... mb,cl
-  -- D4: *aam ib
-  -- D5: *aad ib
-  -- D6: *salc
-  -- D7: *xlat
-  -- D8-DF: floating point ops
-  -- E0: *loopne
-  -- E1: *loope
-  -- E2: *loop
-  -- E3: *jcxz, *jecxz
-  -- E4: *in Rb,ib
-  -- E5: *in Rdw,ib
-  -- E6: *out ib,Rb
-  -- E7: *out ib,Rdw
-  call_1 =	x64 and "mq:nFF2m|J.:E8nJ" or "md:FF2m|J.:E8J",
-  jmp_1 =	x64 and "mq:nFF4m|J.:E9nJ" or "md:FF4m|J.:E9J", -- short: EB
-  -- EA: *jmp iw:idw
-  -- EB: jmp ib
-  -- EC: *in Rb,dx
-  -- ED: *in Rdw,dx
-  -- EE: *out dx,Rb
-  -- EF: *out dx,Rdw
-  lock_0 =	"F0",
-  int1_0 =	"F1",
-  repne_0 =	"F2",
-  repnz_0 =	"F2",
-  rep_0 =	"F3",
-  repe_0 =	"F3",
-  repz_0 =	"F3",
-  -- F4: *hlt
-  cmc_0 =	"F5",
-  -- F6: test... mb,i; div... mb
-  -- F7: test... mdw,i; div... mdw
-  clc_0 =	"F8",
-  stc_0 =	"F9",
-  -- FA: *cli
-  cld_0 =	"FC",
-  std_0 =	"FD",
-  -- FE: inc... mb
-  -- FF: inc... mdw
-
-  -- misc ops
-  not_1 =	"m:F72m",
-  neg_1 =	"m:F73m",
-  mul_1 =	"m:F74m",
-  imul_1 =	"m:F75m",
-  div_1 =	"m:F76m",
-  idiv_1 =	"m:F77m",
-
-  imul_2 =	"rmqdw:0FAFrM|rIqdw:69rmI|rSqdw:6BrmS|riqdw:69rmi",
-  imul_3 =	"rmIqdw:69rMI|rmSqdw:6BrMS|rmiqdw:69rMi",
-
-  movzx_2 =	"rm/db:0FB6rM|rm/qb:|rm/wb:0FB6rM|rm/dw:0FB7rM|rm/qw:",
-  movsx_2 =	"rm/db:0FBErM|rm/qb:|rm/wb:0FBErM|rm/dw:0FBFrM|rm/qw:",
-
-  bswap_1 =	"rqd:0FC8r",
-  bsf_2 =	"rmqdw:0FBCrM",
-  bsr_2 =	"rmqdw:0FBDrM",
-  bt_2 =	"mrqdw:0FA3Rm|miqdw:0FBA4mU",
-  btc_2 =	"mrqdw:0FBBRm|miqdw:0FBA7mU",
-  btr_2 =	"mrqdw:0FB3Rm|miqdw:0FBA6mU",
-  bts_2 =	"mrqdw:0FABRm|miqdw:0FBA5mU",
-
-  shld_3 =	"mriqdw:0FA4RmU|mrC/qq:0FA5Rm|mrC/dd:|mrC/ww:",
-  shrd_3 =	"mriqdw:0FACRmU|mrC/qq:0FADRm|mrC/dd:|mrC/ww:",
-
-  rdtsc_0 =	"0F31", -- P1+
-  rdpmc_0 =	"0F33", -- P6+
-  cpuid_0 =	"0FA2", -- P1+
-
-  -- floating point ops
-  fst_1 =	"ff:DDD0r|xd:D92m|xq:nDD2m",
-  fstp_1 =	"ff:DDD8r|xd:D93m|xq:nDD3m|xt:DB7m",
-  fld_1 =	"ff:D9C0r|xd:D90m|xq:nDD0m|xt:DB5m",
-
-  fpop_0 =	"DDD8", -- Alias for fstp st0.
-
-  fist_1 =	"xw:nDF2m|xd:DB2m",
-  fistp_1 =	"xw:nDF3m|xd:DB3m|xq:nDF7m",
-  fild_1 =	"xw:nDF0m|xd:DB0m|xq:nDF5m",
-
-  fxch_0 =	"D9C9",
-  fxch_1 =	"ff:D9C8r",
-  fxch_2 =	"fFf:D9C8r|Fff:D9C8R",
-
-  fucom_1 =	"ff:DDE0r",
-  fucom_2 =	"Fff:DDE0R",
-  fucomp_1 =	"ff:DDE8r",
-  fucomp_2 =	"Fff:DDE8R",
-  fucomi_1 =	"ff:DBE8r", -- P6+
-  fucomi_2 =	"Fff:DBE8R", -- P6+
-  fucomip_1 =	"ff:DFE8r", -- P6+
-  fucomip_2 =	"Fff:DFE8R", -- P6+
-  fcomi_1 =	"ff:DBF0r", -- P6+
-  fcomi_2 =	"Fff:DBF0R", -- P6+
-  fcomip_1 =	"ff:DFF0r", -- P6+
-  fcomip_2 =	"Fff:DFF0R", -- P6+
-  fucompp_0 =	"DAE9",
-  fcompp_0 =	"DED9",
-
-  fldenv_1 =	"x.:D94m",
-  fnstenv_1 =	"x.:D96m",
-  fstenv_1 =	"x.:9BD96m",
-  fldcw_1 =	"xw:nD95m",
-  fstcw_1 =	"xw:n9BD97m",
-  fnstcw_1 =	"xw:nD97m",
-  fstsw_1 =	"Rw:n9BDFE0|xw:n9BDD7m",
-  fnstsw_1 =	"Rw:nDFE0|xw:nDD7m",
-  fclex_0 =	"9BDBE2",
-  fnclex_0 =	"DBE2",
-
-  fnop_0 =	"D9D0",
-  -- D9D1-D9DF: unassigned
-
-  fchs_0 =	"D9E0",
-  fabs_0 =	"D9E1",
-  -- D9E2: unassigned
-  -- D9E3: unassigned
-  ftst_0 =	"D9E4",
-  fxam_0 =	"D9E5",
-  -- D9E6: unassigned
-  -- D9E7: unassigned
-  fld1_0 =	"D9E8",
-  fldl2t_0 =	"D9E9",
-  fldl2e_0 =	"D9EA",
-  fldpi_0 =	"D9EB",
-  fldlg2_0 =	"D9EC",
-  fldln2_0 =	"D9ED",
-  fldz_0 =	"D9EE",
-  -- D9EF: unassigned
-
-  f2xm1_0 =	"D9F0",
-  fyl2x_0 =	"D9F1",
-  fptan_0 =	"D9F2",
-  fpatan_0 =	"D9F3",
-  fxtract_0 =	"D9F4",
-  fprem1_0 =	"D9F5",
-  fdecstp_0 =	"D9F6",
-  fincstp_0 =	"D9F7",
-  fprem_0 =	"D9F8",
-  fyl2xp1_0 =	"D9F9",
-  fsqrt_0 =	"D9FA",
-  fsincos_0 =	"D9FB",
-  frndint_0 =	"D9FC",
-  fscale_0 =	"D9FD",
-  fsin_0 =	"D9FE",
-  fcos_0 =	"D9FF",
-
-  -- SSE, SSE2
-  andnpd_2 =	"rmo:660F55rM",
-  andnps_2 =	"rmo:0F55rM",
-  andpd_2 =	"rmo:660F54rM",
-  andps_2 =	"rmo:0F54rM",
-  clflush_1 =	"x.:0FAE7m",
-  cmppd_3 =	"rmio:660FC2rMU",
-  cmpps_3 =	"rmio:0FC2rMU",
-  cmpsd_3 =	"rrio:F20FC2rMU|rxi/oq:",
-  cmpss_3 =	"rrio:F30FC2rMU|rxi/od:",
-  comisd_2 =	"rro:660F2FrM|rx/oq:",
-  comiss_2 =	"rro:0F2FrM|rx/od:",
-  cvtdq2pd_2 =	"rro:F30FE6rM|rx/oq:",
-  cvtdq2ps_2 =	"rmo:0F5BrM",
-  cvtpd2dq_2 =	"rmo:F20FE6rM",
-  cvtpd2ps_2 =	"rmo:660F5ArM",
-  cvtpi2pd_2 =	"rx/oq:660F2ArM",
-  cvtpi2ps_2 =	"rx/oq:0F2ArM",
-  cvtps2dq_2 =	"rmo:660F5BrM",
-  cvtps2pd_2 =	"rro:0F5ArM|rx/oq:",
-  cvtsd2si_2 =	"rr/do:F20F2DrM|rr/qo:|rx/dq:|rxq:",
-  cvtsd2ss_2 =	"rro:F20F5ArM|rx/oq:",
-  cvtsi2sd_2 =	"rm/od:F20F2ArM|rm/oq:F20F2ArXM",
-  cvtsi2ss_2 =	"rm/od:F30F2ArM|rm/oq:F30F2ArXM",
-  cvtss2sd_2 =	"rro:F30F5ArM|rx/od:",
-  cvtss2si_2 =	"rr/do:F30F2DrM|rr/qo:|rxd:|rx/qd:",
-  cvttpd2dq_2 =	"rmo:660FE6rM",
-  cvttps2dq_2 =	"rmo:F30F5BrM",
-  cvttsd2si_2 =	"rr/do:F20F2CrM|rr/qo:|rx/dq:|rxq:",
-  cvttss2si_2 =	"rr/do:F30F2CrM|rr/qo:|rxd:|rx/qd:",
-  fxsave_1 =	"x.:0FAE0m",
-  fxrstor_1 =	"x.:0FAE1m",
-  ldmxcsr_1 =	"xd:0FAE2m",
-  lfence_0 =	"0FAEE8",
-  maskmovdqu_2 = "rro:660FF7rM",
-  mfence_0 =	"0FAEF0",
-  movapd_2 =	"rmo:660F28rM|mro:660F29Rm",
-  movaps_2 =	"rmo:0F28rM|mro:0F29Rm",
-  movd_2 =	"rm/od:660F6ErM|rm/oq:660F6ErXM|mr/do:660F7ERm|mr/qo:",
-  movdqa_2 =	"rmo:660F6FrM|mro:660F7FRm",
-  movdqu_2 =	"rmo:F30F6FrM|mro:F30F7FRm",
-  movhlps_2 =	"rro:0F12rM",
-  movhpd_2 =	"rx/oq:660F16rM|xr/qo:n660F17Rm",
-  movhps_2 =	"rx/oq:0F16rM|xr/qo:n0F17Rm",
-  movlhps_2 =	"rro:0F16rM",
-  movlpd_2 =	"rx/oq:660F12rM|xr/qo:n660F13Rm",
-  movlps_2 =	"rx/oq:0F12rM|xr/qo:n0F13Rm",
-  movmskpd_2 =	"rr/do:660F50rM",
-  movmskps_2 =	"rr/do:0F50rM",
-  movntdq_2 =	"xro:660FE7Rm",
-  movnti_2 =	"xrqd:0FC3Rm",
-  movntpd_2 =	"xro:660F2BRm",
-  movntps_2 =	"xro:0F2BRm",
-  movq_2 =	"rro:F30F7ErM|rx/oq:|xr/qo:n660FD6Rm",
-  movsd_2 =	"rro:F20F10rM|rx/oq:|xr/qo:nF20F11Rm",
-  movss_2 =	"rro:F30F10rM|rx/od:|xr/do:F30F11Rm",
-  movupd_2 =	"rmo:660F10rM|mro:660F11Rm",
-  movups_2 =	"rmo:0F10rM|mro:0F11Rm",
-  orpd_2 =	"rmo:660F56rM",
-  orps_2 =	"rmo:0F56rM",
-  pause_0 =	"F390",
-  pextrw_3 =	"rri/do:660FC5rMU|xri/wo:660F3A15nRmU", -- Mem op: SSE4.1 only.
-  pinsrw_3 =	"rri/od:660FC4rMU|rxi/ow:",
-  pmovmskb_2 =	"rr/do:660FD7rM",
-  prefetchnta_1 = "xb:n0F180m",
-  prefetcht0_1 = "xb:n0F181m",
-  prefetcht1_1 = "xb:n0F182m",
-  prefetcht2_1 = "xb:n0F183m",
-  pshufd_3 =	"rmio:660F70rMU",
-  pshufhw_3 =	"rmio:F30F70rMU",
-  pshuflw_3 =	"rmio:F20F70rMU",
-  pslld_2 =	"rmo:660FF2rM|rio:660F726mU",
-  pslldq_2 =	"rio:660F737mU",
-  psllq_2 =	"rmo:660FF3rM|rio:660F736mU",
-  psllw_2 =	"rmo:660FF1rM|rio:660F716mU",
-  psrad_2 =	"rmo:660FE2rM|rio:660F724mU",
-  psraw_2 =	"rmo:660FE1rM|rio:660F714mU",
-  psrld_2 =	"rmo:660FD2rM|rio:660F722mU",
-  psrldq_2 =	"rio:660F733mU",
-  psrlq_2 =	"rmo:660FD3rM|rio:660F732mU",
-  psrlw_2 =	"rmo:660FD1rM|rio:660F712mU",
-  rcpps_2 =	"rmo:0F53rM",
-  rcpss_2 =	"rro:F30F53rM|rx/od:",
-  rsqrtps_2 =	"rmo:0F52rM",
-  rsqrtss_2 =	"rmo:F30F52rM",
-  sfence_0 =	"0FAEF8",
-  shufpd_3 =	"rmio:660FC6rMU",
-  shufps_3 =	"rmio:0FC6rMU",
-  stmxcsr_1 =   "xd:0FAE3m",
-  ucomisd_2 =	"rro:660F2ErM|rx/oq:",
-  ucomiss_2 =	"rro:0F2ErM|rx/od:",
-  unpckhpd_2 =	"rmo:660F15rM",
-  unpckhps_2 =	"rmo:0F15rM",
-  unpcklpd_2 =	"rmo:660F14rM",
-  unpcklps_2 =	"rmo:0F14rM",
-  xorpd_2 =	"rmo:660F57rM",
-  xorps_2 =	"rmo:0F57rM",
-
-  -- SSE3 ops
-  fisttp_1 =	"xw:nDF1m|xd:DB1m|xq:nDD1m",
-  addsubpd_2 =	"rmo:660FD0rM",
-  addsubps_2 =	"rmo:F20FD0rM",
-  haddpd_2 =	"rmo:660F7CrM",
-  haddps_2 =	"rmo:F20F7CrM",
-  hsubpd_2 =	"rmo:660F7DrM",
-  hsubps_2 =	"rmo:F20F7DrM",
-  lddqu_2 =	"rxo:F20FF0rM",
-  movddup_2 =	"rmo:F20F12rM",
-  movshdup_2 =	"rmo:F30F16rM",
-  movsldup_2 =	"rmo:F30F12rM",
-
-  -- SSSE3 ops
-  pabsb_2 =	"rmo:660F381CrM",
-  pabsd_2 =	"rmo:660F381ErM",
-  pabsw_2 =	"rmo:660F381DrM",
-  palignr_3 =	"rmio:660F3A0FrMU",
-  phaddd_2 =	"rmo:660F3802rM",
-  phaddsw_2 =	"rmo:660F3803rM",
-  phaddw_2 =	"rmo:660F3801rM",
-  phsubd_2 =	"rmo:660F3806rM",
-  phsubsw_2 =	"rmo:660F3807rM",
-  phsubw_2 =	"rmo:660F3805rM",
-  pmaddubsw_2 =	"rmo:660F3804rM",
-  pmulhrsw_2 =	"rmo:660F380BrM",
-  pshufb_2 =	"rmo:660F3800rM",
-  psignb_2 =	"rmo:660F3808rM",
-  psignd_2 =	"rmo:660F380ArM",
-  psignw_2 =	"rmo:660F3809rM",
-
-  -- SSE4.1 ops
-  blendpd_3 =	"rmio:660F3A0DrMU",
-  blendps_3 =	"rmio:660F3A0CrMU",
-  blendvpd_3 =	"rmRo:660F3815rM",
-  blendvps_3 =	"rmRo:660F3814rM",
-  dppd_3 =	"rmio:660F3A41rMU",
-  dpps_3 =	"rmio:660F3A40rMU",
-  extractps_3 =	"mri/do:660F3A17RmU|rri/qo:660F3A17RXmU",
-  insertps_3 =	"rrio:660F3A41rMU|rxi/od:",
-  movntdqa_2 =	"rxo:660F382ArM",
-  mpsadbw_3 =	"rmio:660F3A42rMU",
-  packusdw_2 =	"rmo:660F382BrM",
-  pblendvb_3 =	"rmRo:660F3810rM",
-  pblendw_3 =	"rmio:660F3A0ErMU",
-  pcmpeqq_2 =	"rmo:660F3829rM",
-  pextrb_3 =	"rri/do:660F3A14nRmU|rri/qo:|xri/bo:",
-  pextrd_3 =	"mri/do:660F3A16RmU",
-  pextrq_3 =	"mri/qo:660F3A16RmU",
-  -- pextrw is SSE2, mem operand is SSE4.1 only
-  phminposuw_2 = "rmo:660F3841rM",
-  pinsrb_3 =	"rri/od:660F3A20nrMU|rxi/ob:",
-  pinsrd_3 =	"rmi/od:660F3A22rMU",
-  pinsrq_3 =	"rmi/oq:660F3A22rXMU",
-  pmaxsb_2 =	"rmo:660F383CrM",
-  pmaxsd_2 =	"rmo:660F383DrM",
-  pmaxud_2 =	"rmo:660F383FrM",
-  pmaxuw_2 =	"rmo:660F383ErM",
-  pminsb_2 =	"rmo:660F3838rM",
-  pminsd_2 =	"rmo:660F3839rM",
-  pminud_2 =	"rmo:660F383BrM",
-  pminuw_2 =	"rmo:660F383ArM",
-  pmovsxbd_2 =	"rro:660F3821rM|rx/od:",
-  pmovsxbq_2 =	"rro:660F3822rM|rx/ow:",
-  pmovsxbw_2 =	"rro:660F3820rM|rx/oq:",
-  pmovsxdq_2 =	"rro:660F3825rM|rx/oq:",
-  pmovsxwd_2 =	"rro:660F3823rM|rx/oq:",
-  pmovsxwq_2 =	"rro:660F3824rM|rx/od:",
-  pmovzxbd_2 =	"rro:660F3831rM|rx/od:",
-  pmovzxbq_2 =	"rro:660F3832rM|rx/ow:",
-  pmovzxbw_2 =	"rro:660F3830rM|rx/oq:",
-  pmovzxdq_2 =	"rro:660F3835rM|rx/oq:",
-  pmovzxwd_2 =	"rro:660F3833rM|rx/oq:",
-  pmovzxwq_2 =	"rro:660F3834rM|rx/od:",
-  pmuldq_2 =	"rmo:660F3828rM",
-  pmulld_2 =	"rmo:660F3840rM",
-  ptest_2 =	"rmo:660F3817rM",
-  roundpd_3 =	"rmio:660F3A09rMU",
-  roundps_3 =	"rmio:660F3A08rMU",
-  roundsd_3 =	"rrio:660F3A0BrMU|rxi/oq:",
-  roundss_3 =	"rrio:660F3A0ArMU|rxi/od:",
-
-  -- SSE4.2 ops
-  crc32_2 =	"rmqd:F20F38F1rM|rm/dw:66F20F38F1rM|rm/db:F20F38F0rM|rm/qb:",
-  pcmpestri_3 =	"rmio:660F3A61rMU",
-  pcmpestrm_3 =	"rmio:660F3A60rMU",
-  pcmpgtq_2 =	"rmo:660F3837rM",
-  pcmpistri_3 =	"rmio:660F3A63rMU",
-  pcmpistrm_3 =	"rmio:660F3A62rMU",
-  popcnt_2 =	"rmqdw:F30FB8rM",
-
-  -- SSE4a
-  extrq_2 =	"rro:660F79rM",
-  extrq_3 =	"riio:660F780mUU",
-  insertq_2 =	"rro:F20F79rM",
-  insertq_4 =	"rriio:F20F78rMUU",
-  lzcnt_2 =	"rmqdw:F30FBDrM",
-  movntsd_2 =	"xr/qo:nF20F2BRm",
-  movntss_2 =	"xr/do:F30F2BRm",
-  -- popcnt is also in SSE4.2
-
-  -- AES-NI
-  aesdec_2 =	"rmo:660F38DErM",
-  aesdeclast_2 = "rmo:660F38DFrM",
-  aesenc_2 =	"rmo:660F38DCrM",
-  aesenclast_2 = "rmo:660F38DDrM",
-  aesimc_2 =	"rmo:660F38DBrM",
-  aeskeygenassist_3 = "rmio:660F3ADFrMU",
-  pclmulqdq_3 =	"rmio:660F3A44rMU",
-
-   -- AVX FP ops
-  vaddsubpd_3 =	"rrmoy:660FVD0rM",
-  vaddsubps_3 =	"rrmoy:F20FVD0rM",
-  vandpd_3 =	"rrmoy:660FV54rM",
-  vandps_3 =	"rrmoy:0FV54rM",
-  vandnpd_3 =	"rrmoy:660FV55rM",
-  vandnps_3 =	"rrmoy:0FV55rM",
-  vblendpd_4 =	"rrmioy:660F3AV0DrMU",
-  vblendps_4 =	"rrmioy:660F3AV0CrMU",
-  vblendvpd_4 =	"rrmroy:660F3AV4BrMs",
-  vblendvps_4 =	"rrmroy:660F3AV4ArMs",
-  vbroadcastf128_2 = "rx/yo:660F38u1ArM",
-  vcmppd_4 =	"rrmioy:660FVC2rMU",
-  vcmpps_4 =	"rrmioy:0FVC2rMU",
-  vcmpsd_4 =	"rrrio:F20FVC2rMU|rrxi/ooq:",
-  vcmpss_4 =	"rrrio:F30FVC2rMU|rrxi/ood:",
-  vcomisd_2 =	"rro:660Fu2FrM|rx/oq:",
-  vcomiss_2 =	"rro:0Fu2FrM|rx/od:",
-  vcvtdq2pd_2 =	"rro:F30FuE6rM|rx/oq:|rm/yo:",
-  vcvtdq2ps_2 =	"rmoy:0Fu5BrM",
-  vcvtpd2dq_2 =	"rmoy:F20FuE6rM",
-  vcvtpd2ps_2 =	"rmoy:660Fu5ArM",
-  vcvtps2dq_2 =	"rmoy:660Fu5BrM",
-  vcvtps2pd_2 =	"rro:0Fu5ArM|rx/oq:|rm/yo:",
-  vcvtsd2si_2 =	"rr/do:F20Fu2DrM|rx/dq:|rr/qo:|rxq:",
-  vcvtsd2ss_3 =	"rrro:F20FV5ArM|rrx/ooq:",
-  vcvtsi2sd_3 =	"rrm/ood:F20FV2ArM|rrm/ooq:F20FVX2ArM",
-  vcvtsi2ss_3 =	"rrm/ood:F30FV2ArM|rrm/ooq:F30FVX2ArM",
-  vcvtss2sd_3 =	"rrro:F30FV5ArM|rrx/ood:",
-  vcvtss2si_2 =	"rr/do:F30Fu2DrM|rxd:|rr/qo:|rx/qd:",
-  vcvttpd2dq_2 = "rmo:660FuE6rM|rm/oy:660FuLE6rM",
-  vcvttps2dq_2 = "rmoy:F30Fu5BrM",
-  vcvttsd2si_2 = "rr/do:F20Fu2CrM|rx/dq:|rr/qo:|rxq:",
-  vcvttss2si_2 = "rr/do:F30Fu2CrM|rxd:|rr/qo:|rx/qd:",
-  vdppd_4 =	"rrmio:660F3AV41rMU",
-  vdpps_4 =	"rrmioy:660F3AV40rMU",
-  vextractf128_3 = "mri/oy:660F3AuL19RmU",
-  vextractps_3 = "mri/do:660F3Au17RmU",
-  vhaddpd_3 =	"rrmoy:660FV7CrM",
-  vhaddps_3 =	"rrmoy:F20FV7CrM",
-  vhsubpd_3 =	"rrmoy:660FV7DrM",
-  vhsubps_3 =	"rrmoy:F20FV7DrM",
-  vinsertf128_4 = "rrmi/yyo:660F3AV18rMU",
-  vinsertps_4 =	"rrrio:660F3AV21rMU|rrxi/ood:",
-  vldmxcsr_1 =	"xd:0FuAE2m",
-  vmaskmovps_3 = "rrxoy:660F38V2CrM|xrroy:660F38V2ERm",
-  vmaskmovpd_3 = "rrxoy:660F38V2DrM|xrroy:660F38V2FRm",
-  vmovapd_2 =	"rmoy:660Fu28rM|mroy:660Fu29Rm",
-  vmovaps_2 =	"rmoy:0Fu28rM|mroy:0Fu29Rm",
-  vmovd_2 =	"rm/od:660Fu6ErM|rm/oq:660FuX6ErM|mr/do:660Fu7ERm|mr/qo:",
-  vmovq_2 =	"rro:F30Fu7ErM|rx/oq:|xr/qo:660FuD6Rm",
-  vmovddup_2 =	"rmy:F20Fu12rM|rro:|rx/oq:",
-  vmovhlps_3 =	"rrro:0FV12rM",
-  vmovhpd_2 =	"xr/qo:660Fu17Rm",
-  vmovhpd_3 =	"rrx/ooq:660FV16rM",
-  vmovhps_2 =	"xr/qo:0Fu17Rm",
-  vmovhps_3 =	"rrx/ooq:0FV16rM",
-  vmovlhps_3 =	"rrro:0FV16rM",
-  vmovlpd_2 =	"xr/qo:660Fu13Rm",
-  vmovlpd_3 =	"rrx/ooq:660FV12rM",
-  vmovlps_2 =	"xr/qo:0Fu13Rm",
-  vmovlps_3 =	"rrx/ooq:0FV12rM",
-  vmovmskpd_2 =	"rr/do:660Fu50rM|rr/dy:660FuL50rM",
-  vmovmskps_2 =	"rr/do:0Fu50rM|rr/dy:0FuL50rM",
-  vmovntpd_2 =	"xroy:660Fu2BRm",
-  vmovntps_2 =	"xroy:0Fu2BRm",
-  vmovsd_2 =	"rx/oq:F20Fu10rM|xr/qo:F20Fu11Rm",
-  vmovsd_3 =	"rrro:F20FV10rM",
-  vmovshdup_2 =	"rmoy:F30Fu16rM",
-  vmovsldup_2 =	"rmoy:F30Fu12rM",
-  vmovss_2 =	"rx/od:F30Fu10rM|xr/do:F30Fu11Rm",
-  vmovss_3 =	"rrro:F30FV10rM",
-  vmovupd_2 =	"rmoy:660Fu10rM|mroy:660Fu11Rm",
-  vmovups_2 =	"rmoy:0Fu10rM|mroy:0Fu11Rm",
-  vorpd_3 =	"rrmoy:660FV56rM",
-  vorps_3 =	"rrmoy:0FV56rM",
-  vpermilpd_3 =	"rrmoy:660F38V0DrM|rmioy:660F3Au05rMU",
-  vpermilps_3 =	"rrmoy:660F38V0CrM|rmioy:660F3Au04rMU",
-  vperm2f128_4 = "rrmiy:660F3AV06rMU",
-  vptestpd_2 =	"rmoy:660F38u0FrM",
-  vptestps_2 =	"rmoy:660F38u0ErM",
-  vrcpps_2 =	"rmoy:0Fu53rM",
-  vrcpss_3 =	"rrro:F30FV53rM|rrx/ood:",
-  vrsqrtps_2 =	"rmoy:0Fu52rM",
-  vrsqrtss_3 =	"rrro:F30FV52rM|rrx/ood:",
-  vroundpd_3 =	"rmioy:660F3Au09rMU",
-  vroundps_3 =	"rmioy:660F3Au08rMU",
-  vroundsd_4 =	"rrrio:660F3AV0BrMU|rrxi/ooq:",
-  vroundss_4 =	"rrrio:660F3AV0ArMU|rrxi/ood:",
-  vshufpd_4 =	"rrmioy:660FVC6rMU",
-  vshufps_4 =	"rrmioy:0FVC6rMU",
-  vsqrtps_2 =	"rmoy:0Fu51rM",
-  vsqrtss_2 =	"rro:F30Fu51rM|rx/od:",
-  vsqrtpd_2 =	"rmoy:660Fu51rM",
-  vsqrtsd_2 =	"rro:F20Fu51rM|rx/oq:",
-  vstmxcsr_1 =	"xd:0FuAE3m",
-  vucomisd_2 =	"rro:660Fu2ErM|rx/oq:",
-  vucomiss_2 =	"rro:0Fu2ErM|rx/od:",
-  vunpckhpd_3 =	"rrmoy:660FV15rM",
-  vunpckhps_3 =	"rrmoy:0FV15rM",
-  vunpcklpd_3 =	"rrmoy:660FV14rM",
-  vunpcklps_3 =	"rrmoy:0FV14rM",
-  vxorpd_3 =	"rrmoy:660FV57rM",
-  vxorps_3 =	"rrmoy:0FV57rM",
-  vzeroall_0 =	"0FuL77",
-  vzeroupper_0 = "0Fu77",
-
-  -- AVX2 FP ops
-  vbroadcastss_2 = "rx/od:660F38u18rM|rx/yd:|rro:|rr/yo:",
-  vbroadcastsd_2 = "rx/yq:660F38u19rM|rr/yo:",
-  -- *vgather* (!vsib)
-  vpermpd_3 =	"rmiy:660F3AuX01rMU",
-  vpermps_3 =	"rrmy:660F38V16rM",
-
-  -- AVX, AVX2 integer ops
-  -- In general, xmm requires AVX, ymm requires AVX2.
-  vaesdec_3 =  "rrmo:660F38VDErM",
-  vaesdeclast_3 = "rrmo:660F38VDFrM",
-  vaesenc_3 =  "rrmo:660F38VDCrM",
-  vaesenclast_3 = "rrmo:660F38VDDrM",
-  vaesimc_2 =  "rmo:660F38uDBrM",
-  vaeskeygenassist_3 = "rmio:660F3AuDFrMU",
-  vlddqu_2 =	"rxoy:F20FuF0rM",
-  vmaskmovdqu_2 = "rro:660FuF7rM",
-  vmovdqa_2 =	"rmoy:660Fu6FrM|mroy:660Fu7FRm",
-  vmovdqu_2 =	"rmoy:F30Fu6FrM|mroy:F30Fu7FRm",
-  vmovntdq_2 =	"xroy:660FuE7Rm",
-  vmovntdqa_2 =	"rxoy:660F38u2ArM",
-  vmpsadbw_4 =	"rrmioy:660F3AV42rMU",
-  vpabsb_2 =	"rmoy:660F38u1CrM",
-  vpabsd_2 =	"rmoy:660F38u1ErM",
-  vpabsw_2 =	"rmoy:660F38u1DrM",
-  vpackusdw_3 =	"rrmoy:660F38V2BrM",
-  vpalignr_4 =	"rrmioy:660F3AV0FrMU",
-  vpblendvb_4 =	"rrmroy:660F3AV4CrMs",
-  vpblendw_4 =	"rrmioy:660F3AV0ErMU",
-  vpclmulqdq_4 = "rrmio:660F3AV44rMU",
-  vpcmpeqq_3 =	"rrmoy:660F38V29rM",
-  vpcmpestri_3 = "rmio:660F3Au61rMU",
-  vpcmpestrm_3 = "rmio:660F3Au60rMU",
-  vpcmpgtq_3 =	"rrmoy:660F38V37rM",
-  vpcmpistri_3 = "rmio:660F3Au63rMU",
-  vpcmpistrm_3 = "rmio:660F3Au62rMU",
-  vpextrb_3 =	"rri/do:660F3Au14nRmU|rri/qo:|xri/bo:",
-  vpextrw_3 =	"rri/do:660FuC5rMU|xri/wo:660F3Au15nRmU",
-  vpextrd_3 =	"mri/do:660F3Au16RmU",
-  vpextrq_3 =	"mri/qo:660F3Au16RmU",
-  vphaddw_3 =	"rrmoy:660F38V01rM",
-  vphaddd_3 =	"rrmoy:660F38V02rM",
-  vphaddsw_3 =	"rrmoy:660F38V03rM",
-  vphminposuw_2 = "rmo:660F38u41rM",
-  vphsubw_3 =	"rrmoy:660F38V05rM",
-  vphsubd_3 =	"rrmoy:660F38V06rM",
-  vphsubsw_3 =	"rrmoy:660F38V07rM",
-  vpinsrb_4 =	"rrri/ood:660F3AV20rMU|rrxi/oob:",
-  vpinsrw_4 =	"rrri/ood:660FVC4rMU|rrxi/oow:",
-  vpinsrd_4 =	"rrmi/ood:660F3AV22rMU",
-  vpinsrq_4 =	"rrmi/ooq:660F3AVX22rMU",
-  vpmaddubsw_3 = "rrmoy:660F38V04rM",
-  vpmaxsb_3 =	"rrmoy:660F38V3CrM",
-  vpmaxsd_3 =	"rrmoy:660F38V3DrM",
-  vpmaxuw_3 =	"rrmoy:660F38V3ErM",
-  vpmaxud_3 =	"rrmoy:660F38V3FrM",
-  vpminsb_3 =	"rrmoy:660F38V38rM",
-  vpminsd_3 =	"rrmoy:660F38V39rM",
-  vpminuw_3 =	"rrmoy:660F38V3ArM",
-  vpminud_3 =	"rrmoy:660F38V3BrM",
-  vpmovmskb_2 =	"rr/do:660FuD7rM|rr/dy:660FuLD7rM",
-  vpmovsxbw_2 =	"rroy:660F38u20rM|rx/oq:|rx/yo:",
-  vpmovsxbd_2 =	"rroy:660F38u21rM|rx/od:|rx/yq:",
-  vpmovsxbq_2 =	"rroy:660F38u22rM|rx/ow:|rx/yd:",
-  vpmovsxwd_2 =	"rroy:660F38u23rM|rx/oq:|rx/yo:",
-  vpmovsxwq_2 =	"rroy:660F38u24rM|rx/od:|rx/yq:",
-  vpmovsxdq_2 =	"rroy:660F38u25rM|rx/oq:|rx/yo:",
-  vpmovzxbw_2 =	"rroy:660F38u30rM|rx/oq:|rx/yo:",
-  vpmovzxbd_2 =	"rroy:660F38u31rM|rx/od:|rx/yq:",
-  vpmovzxbq_2 =	"rroy:660F38u32rM|rx/ow:|rx/yd:",
-  vpmovzxwd_2 =	"rroy:660F38u33rM|rx/oq:|rx/yo:",
-  vpmovzxwq_2 =	"rroy:660F38u34rM|rx/od:|rx/yq:",
-  vpmovzxdq_2 =	"rroy:660F38u35rM|rx/oq:|rx/yo:",
-  vpmuldq_3 =	"rrmoy:660F38V28rM",
-  vpmulhrsw_3 =	"rrmoy:660F38V0BrM",
-  vpmulld_3 =	"rrmoy:660F38V40rM",
-  vpshufb_3 =	"rrmoy:660F38V00rM",
-  vpshufd_3 =	"rmioy:660Fu70rMU",
-  vpshufhw_3 =	"rmioy:F30Fu70rMU",
-  vpshuflw_3 =	"rmioy:F20Fu70rMU",
-  vpsignb_3 =	"rrmoy:660F38V08rM",
-  vpsignw_3 =	"rrmoy:660F38V09rM",
-  vpsignd_3 =	"rrmoy:660F38V0ArM",
-  vpslldq_3 =	"rrioy:660Fv737mU",
-  vpsllw_3 =	"rrmoy:660FVF1rM|rrioy:660Fv716mU",
-  vpslld_3 =	"rrmoy:660FVF2rM|rrioy:660Fv726mU",
-  vpsllq_3 =	"rrmoy:660FVF3rM|rrioy:660Fv736mU",
-  vpsraw_3 =	"rrmoy:660FVE1rM|rrioy:660Fv714mU",
-  vpsrad_3 =	"rrmoy:660FVE2rM|rrioy:660Fv724mU",
-  vpsrldq_3 =	"rrioy:660Fv733mU",
-  vpsrlw_3 =	"rrmoy:660FVD1rM|rrioy:660Fv712mU",
-  vpsrld_3 =	"rrmoy:660FVD2rM|rrioy:660Fv722mU",
-  vpsrlq_3 =	"rrmoy:660FVD3rM|rrioy:660Fv732mU",
-  vptest_2 =	"rmoy:660F38u17rM",
-
-  -- AVX2 integer ops
-  vbroadcasti128_2 = "rx/yo:660F38u5ArM",
-  vinserti128_4 = "rrmi/yyo:660F3AV38rMU",
-  vextracti128_3 = "mri/oy:660F3AuL39RmU",
-  vpblendd_4 =	"rrmioy:660F3AV02rMU",
-  vpbroadcastb_2 = "rro:660F38u78rM|rx/ob:|rr/yo:|rx/yb:",
-  vpbroadcastw_2 = "rro:660F38u79rM|rx/ow:|rr/yo:|rx/yw:",
-  vpbroadcastd_2 = "rro:660F38u58rM|rx/od:|rr/yo:|rx/yd:",
-  vpbroadcastq_2 = "rro:660F38u59rM|rx/oq:|rr/yo:|rx/yq:",
-  vpermd_3 =	"rrmy:660F38V36rM",
-  vpermq_3 =	"rmiy:660F3AuX00rMU",
-  -- *vpgather* (!vsib)
-  vperm2i128_4 = "rrmiy:660F3AV46rMU",
-  vpmaskmovd_3 = "rrxoy:660F38V8CrM|xrroy:660F38V8ERm",
-  vpmaskmovq_3 = "rrxoy:660F38VX8CrM|xrroy:660F38VX8ERm",
-  vpsllvd_3 =	"rrmoy:660F38V47rM",
-  vpsllvq_3 =	"rrmoy:660F38VX47rM",
-  vpsravd_3 =	"rrmoy:660F38V46rM",
-  vpsrlvd_3 =	"rrmoy:660F38V45rM",
-  vpsrlvq_3 =	"rrmoy:660F38VX45rM",
-
-  -- Intel ADX
-  adcx_2 =	"rmqd:660F38F6rM",
-  adox_2 =	"rmqd:F30F38F6rM",
-
-  -- BMI1
-  andn_3 =	"rrmqd:0F38VF2rM",
-  bextr_3 =	"rmrqd:0F38wF7rM",
-  blsi_2 =	"rmqd:0F38vF33m",
-  blsmsk_2 =	"rmqd:0F38vF32m",
-  blsr_2 =	"rmqd:0F38vF31m",
-  tzcnt_2 =	"rmqdw:F30FBCrM",
-
-  -- BMI2
-  bzhi_3 =	"rmrqd:0F38wF5rM",
-  mulx_3 =	"rrmqd:F20F38VF6rM",
-  pdep_3 =	"rrmqd:F20F38VF5rM",
-  pext_3 =	"rrmqd:F30F38VF5rM",
-  rorx_3 =	"rmSqd:F20F3AuF0rMS",
-  sarx_3 =	"rmrqd:F30F38wF7rM",
-  shrx_3 =	"rmrqd:F20F38wF7rM",
-  shlx_3 =	"rmrqd:660F38wF7rM",
-
-  -- FMA3
-  vfmaddsub132pd_3 = "rrmoy:660F38VX96rM",
-  vfmaddsub132ps_3 = "rrmoy:660F38V96rM",
-  vfmaddsub213pd_3 = "rrmoy:660F38VXA6rM",
-  vfmaddsub213ps_3 = "rrmoy:660F38VA6rM",
-  vfmaddsub231pd_3 = "rrmoy:660F38VXB6rM",
-  vfmaddsub231ps_3 = "rrmoy:660F38VB6rM",
-
-  vfmsubadd132pd_3 = "rrmoy:660F38VX97rM",
-  vfmsubadd132ps_3 = "rrmoy:660F38V97rM",
-  vfmsubadd213pd_3 = "rrmoy:660F38VXA7rM",
-  vfmsubadd213ps_3 = "rrmoy:660F38VA7rM",
-  vfmsubadd231pd_3 = "rrmoy:660F38VXB7rM",
-  vfmsubadd231ps_3 = "rrmoy:660F38VB7rM",
-
-  vfmadd132pd_3 = "rrmoy:660F38VX98rM",
-  vfmadd132ps_3 = "rrmoy:660F38V98rM",
-  vfmadd132sd_3 = "rrro:660F38VX99rM|rrx/ooq:",
-  vfmadd132ss_3 = "rrro:660F38V99rM|rrx/ood:",
-  vfmadd213pd_3 = "rrmoy:660F38VXA8rM",
-  vfmadd213ps_3 = "rrmoy:660F38VA8rM",
-  vfmadd213sd_3 = "rrro:660F38VXA9rM|rrx/ooq:",
-  vfmadd213ss_3 = "rrro:660F38VA9rM|rrx/ood:",
-  vfmadd231pd_3 = "rrmoy:660F38VXB8rM",
-  vfmadd231ps_3 = "rrmoy:660F38VB8rM",
-  vfmadd231sd_3 = "rrro:660F38VXB9rM|rrx/ooq:",
-  vfmadd231ss_3 = "rrro:660F38VB9rM|rrx/ood:",
-
-  vfmsub132pd_3 = "rrmoy:660F38VX9ArM",
-  vfmsub132ps_3 = "rrmoy:660F38V9ArM",
-  vfmsub132sd_3 = "rrro:660F38VX9BrM|rrx/ooq:",
-  vfmsub132ss_3 = "rrro:660F38V9BrM|rrx/ood:",
-  vfmsub213pd_3 = "rrmoy:660F38VXAArM",
-  vfmsub213ps_3 = "rrmoy:660F38VAArM",
-  vfmsub213sd_3 = "rrro:660F38VXABrM|rrx/ooq:",
-  vfmsub213ss_3 = "rrro:660F38VABrM|rrx/ood:",
-  vfmsub231pd_3 = "rrmoy:660F38VXBArM",
-  vfmsub231ps_3 = "rrmoy:660F38VBArM",
-  vfmsub231sd_3 = "rrro:660F38VXBBrM|rrx/ooq:",
-  vfmsub231ss_3 = "rrro:660F38VBBrM|rrx/ood:",
-
-  vfnmadd132pd_3 = "rrmoy:660F38VX9CrM",
-  vfnmadd132ps_3 = "rrmoy:660F38V9CrM",
-  vfnmadd132sd_3 = "rrro:660F38VX9DrM|rrx/ooq:",
-  vfnmadd132ss_3 = "rrro:660F38V9DrM|rrx/ood:",
-  vfnmadd213pd_3 = "rrmoy:660F38VXACrM",
-  vfnmadd213ps_3 = "rrmoy:660F38VACrM",
-  vfnmadd213sd_3 = "rrro:660F38VXADrM|rrx/ooq:",
-  vfnmadd213ss_3 = "rrro:660F38VADrM|rrx/ood:",
-  vfnmadd231pd_3 = "rrmoy:660F38VXBCrM",
-  vfnmadd231ps_3 = "rrmoy:660F38VBCrM",
-  vfnmadd231sd_3 = "rrro:660F38VXBDrM|rrx/ooq:",
-  vfnmadd231ss_3 = "rrro:660F38VBDrM|rrx/ood:",
-
-  vfnmsub132pd_3 = "rrmoy:660F38VX9ErM",
-  vfnmsub132ps_3 = "rrmoy:660F38V9ErM",
-  vfnmsub132sd_3 = "rrro:660F38VX9FrM|rrx/ooq:",
-  vfnmsub132ss_3 = "rrro:660F38V9FrM|rrx/ood:",
-  vfnmsub213pd_3 = "rrmoy:660F38VXAErM",
-  vfnmsub213ps_3 = "rrmoy:660F38VAErM",
-  vfnmsub213sd_3 = "rrro:660F38VXAFrM|rrx/ooq:",
-  vfnmsub213ss_3 = "rrro:660F38VAFrM|rrx/ood:",
-  vfnmsub231pd_3 = "rrmoy:660F38VXBErM",
-  vfnmsub231ps_3 = "rrmoy:660F38VBErM",
-  vfnmsub231sd_3 = "rrro:660F38VXBFrM|rrx/ooq:",
-  vfnmsub231ss_3 = "rrro:660F38VBFrM|rrx/ood:",
-}
-
-------------------------------------------------------------------------------
-
--- Arithmetic ops.
-for name,n in pairs{ add = 0, ["or"] = 1, adc = 2, sbb = 3,
-		     ["and"] = 4, sub = 5, xor = 6, cmp = 7 } do
-  local n8 = shl(n, 3)
-  map_op[name.."_2"] = format(
-    "mr:%02XRm|rm:%02XrM|mI1qdw:81%XmI|mS1qdw:83%XmS|Ri1qdwb:%02Xri|mi1qdwb:81%Xmi",
-    1+n8, 3+n8, n, n, 5+n8, n)
-end
-
--- Shift ops.
-for name,n in pairs{ rol = 0, ror = 1, rcl = 2, rcr = 3,
-		     shl = 4, shr = 5,          sar = 7, sal = 4 } do
-  map_op[name.."_2"] = format("m1:D1%Xm|mC1qdwb:D3%Xm|mi:C1%XmU", n, n, n)
-end
-
--- Conditional ops.
-for cc,n in pairs(map_cc) do
-  map_op["j"..cc.."_1"] = format("J.:n0F8%XJ", n) -- short: 7%X
-  map_op["set"..cc.."_1"] = format("mb:n0F9%X2m", n)
-  map_op["cmov"..cc.."_2"] = format("rmqdw:0F4%XrM", n) -- P6+
-end
-
--- FP arithmetic ops.
-for name,n in pairs{ add = 0, mul = 1, com = 2, comp = 3,
-		     sub = 4, subr = 5, div = 6, divr = 7 } do
-  local nc = 0xc0 + shl(n, 3)
-  local nr = nc + (n < 4 and 0 or (n % 2 == 0 and 8 or -8))
-  local fn = "f"..name
-  map_op[fn.."_1"] = format("ff:D8%02Xr|xd:D8%Xm|xq:nDC%Xm", nc, n, n)
-  if n == 2 or n == 3 then
-    map_op[fn.."_2"] = format("Fff:D8%02XR|Fx2d:D8%XM|Fx2q:nDC%XM", nc, n, n)
-  else
-    map_op[fn.."_2"] = format("Fff:D8%02XR|fFf:DC%02Xr|Fx2d:D8%XM|Fx2q:nDC%XM", nc, nr, n, n)
-    map_op[fn.."p_1"] = format("ff:DE%02Xr", nr)
-    map_op[fn.."p_2"] = format("fFf:DE%02Xr", nr)
-  end
-  map_op["fi"..name.."_1"] = format("xd:DA%Xm|xw:nDE%Xm", n, n)
-end
-
--- FP conditional moves.
-for cc,n in pairs{ b=0, e=1, be=2, u=3, nb=4, ne=5, nbe=6, nu=7 } do
-  local nc = 0xdac0 + shl(band(n, 3), 3) + shl(band(n, 4), 6)
-  map_op["fcmov"..cc.."_1"] = format("ff:%04Xr", nc) -- P6+
-  map_op["fcmov"..cc.."_2"] = format("Fff:%04XR", nc) -- P6+
-end
-
--- SSE / AVX FP arithmetic ops.
-for name,n in pairs{ sqrt = 1, add = 8, mul = 9,
-		     sub = 12, min = 13, div = 14, max = 15 } do
-  map_op[name.."ps_2"] = format("rmo:0F5%XrM", n)
-  map_op[name.."ss_2"] = format("rro:F30F5%XrM|rx/od:", n)
-  map_op[name.."pd_2"] = format("rmo:660F5%XrM", n)
-  map_op[name.."sd_2"] = format("rro:F20F5%XrM|rx/oq:", n)
-  if n ~= 1 then
-    map_op["v"..name.."ps_3"] = format("rrmoy:0FV5%XrM", n)
-    map_op["v"..name.."ss_3"] = format("rrro:F30FV5%XrM|rrx/ood:", n)
-    map_op["v"..name.."pd_3"] = format("rrmoy:660FV5%XrM", n)
-    map_op["v"..name.."sd_3"] = format("rrro:F20FV5%XrM|rrx/ooq:", n)
-  end
-end
-
--- SSE2 / AVX / AVX2 integer arithmetic ops (66 0F leaf).
-for name,n in pairs{
-  paddb = 0xFC, paddw = 0xFD, paddd = 0xFE, paddq = 0xD4,
-  paddsb = 0xEC, paddsw = 0xED, packssdw = 0x6B,
-  packsswb = 0x63, packuswb = 0x67, paddusb = 0xDC,
-  paddusw = 0xDD, pand = 0xDB, pandn = 0xDF, pavgb = 0xE0,
-  pavgw = 0xE3, pcmpeqb = 0x74, pcmpeqd = 0x76,
-  pcmpeqw = 0x75, pcmpgtb = 0x64, pcmpgtd = 0x66,
-  pcmpgtw = 0x65, pmaddwd = 0xF5, pmaxsw = 0xEE,
-  pmaxub = 0xDE, pminsw = 0xEA, pminub = 0xDA,
-  pmulhuw = 0xE4, pmulhw = 0xE5, pmullw = 0xD5,
-  pmuludq = 0xF4, por = 0xEB, psadbw = 0xF6, psubb = 0xF8,
-  psubw = 0xF9, psubd = 0xFA, psubq = 0xFB, psubsb = 0xE8,
-  psubsw = 0xE9, psubusb = 0xD8, psubusw = 0xD9,
-  punpckhbw = 0x68, punpckhwd = 0x69, punpckhdq = 0x6A,
-  punpckhqdq = 0x6D, punpcklbw = 0x60, punpcklwd = 0x61,
-  punpckldq = 0x62, punpcklqdq = 0x6C, pxor = 0xEF
-} do
-  map_op[name.."_2"] = format("rmo:660F%02XrM", n)
-  map_op["v"..name.."_3"] = format("rrmoy:660FV%02XrM", n)
-end
-
-------------------------------------------------------------------------------
-
-local map_vexarg = { u = false, v = 1, V = 2 }
-
--- Process pattern string.
-local function dopattern(pat, args, sz, op, needrex)
-  local digit, addin, vex
-  local opcode = 0
-  local szov = sz
-  local narg = 1
-  local rex = 0
-
-  -- Limit number of section buffer positions used by a single dasm_put().
-  -- A single opcode needs a maximum of 6 positions.
-  if secpos+6 > maxsecpos then wflush() end
-
-  -- Process each character.
-  for c in gmatch(pat.."|", ".") do
-    if match(c, "%x") then	-- Hex digit.
-      digit = byte(c) - 48
-      if digit > 48 then digit = digit - 39
-      elseif digit > 16 then digit = digit - 7 end
-      opcode = opcode*16 + digit
-      addin = nil
-    elseif c == "n" then	-- Disable operand size mods for opcode.
-      szov = nil
-    elseif c == "X" then	-- Force REX.W.
-      rex = 8
-    elseif c == "L" then	-- Force VEX.L.
-      vex.l = true
-    elseif c == "r" then	-- Merge 1st operand regno. into opcode.
-      addin = args[1]; opcode = opcode + (addin.reg % 8)
-      if narg < 2 then narg = 2 end
-    elseif c == "R" then	-- Merge 2nd operand regno. into opcode.
-      addin = args[2]; opcode = opcode + (addin.reg % 8)
-      narg = 3
-    elseif c == "m" or c == "M" then	-- Encode ModRM/SIB.
-      local s
-      if addin then
-	s = addin.reg
-	opcode = opcode - band(s, 7)	-- Undo regno opcode merge.
-      else
-	s = band(opcode, 15)	-- Undo last digit.
-	opcode = shr(opcode, 4)
-      end
-      local nn = c == "m" and 1 or 2
-      local t = args[nn]
-      if narg <= nn then narg = nn + 1 end
-      if szov == "q" and rex == 0 then rex = rex + 8 end
-      if t.reg and t.reg > 7 then rex = rex + 1 end
-      if t.xreg and t.xreg > 7 then rex = rex + 2 end
-      if s > 7 then rex = rex + 4 end
-      if needrex then rex = rex + 16 end
-      local psz, sk = wputop(szov, opcode, rex, vex, s < 0, t.vreg or t.vxreg)
-      opcode = nil
-      local imark = sub(pat, -1) -- Force a mark (ugly).
-      -- Put ModRM/SIB with regno/last digit as spare.
-      wputmrmsib(t, imark, s, addin and addin.vreg, psz, sk)
-      addin = nil
-    elseif map_vexarg[c] ~= nil then -- Encode using VEX prefix
-      local b = band(opcode, 255); opcode = shr(opcode, 8)
-      local m = 1
-      if b == 0x38 then m = 2
-      elseif b == 0x3a then m = 3 end
-      if m ~= 1 then b = band(opcode, 255); opcode = shr(opcode, 8) end
-      if b ~= 0x0f then
-	werror("expected `0F', `0F38', or `0F3A' to precede `"..c..
-	  "' in pattern `"..pat.."' for `"..op.."'")
-      end
-      local v = map_vexarg[c]
-      if v then v = remove(args, v) end
-      b = band(opcode, 255)
-      local p = 0
-      if b == 0x66 then p = 1
-      elseif b == 0xf3 then p = 2
-      elseif b == 0xf2 then p = 3 end
-      if p ~= 0 then opcode = shr(opcode, 8) end
-      if opcode ~= 0 then wputop(nil, opcode, 0); opcode = 0 end
-      vex = { m = m, p = p, v = v }
-    else
-      if opcode then -- Flush opcode.
-	if szov == "q" and rex == 0 then rex = rex + 8 end
-	if needrex then rex = rex + 16 end
-	if addin and addin.reg == -1 then
-	  local psz, sk = wputop(szov, opcode - 7, rex, vex, true)
-	  wvreg("opcode", addin.vreg, psz, sk)
-	else
-	  if addin and addin.reg > 7 then rex = rex + 1 end
-	  wputop(szov, opcode, rex, vex)
-	end
-	opcode = nil
-      end
-      if c == "|" then break end
-      if c == "o" then -- Offset (pure 32 bit displacement).
-	wputdarg(args[1].disp); if narg < 2 then narg = 2 end
-      elseif c == "O" then
-	wputdarg(args[2].disp); narg = 3
-      else
-	-- Anything else is an immediate operand.
-	local a = args[narg]
-	narg = narg + 1
-	local mode, imm = a.mode, a.imm
-	if mode == "iJ" and not match("iIJ", c) then
-	  werror("bad operand size for label")
-	end
-	if c == "S" then
-	  wputsbarg(imm)
-	elseif c == "U" then
-	  wputbarg(imm)
-	elseif c == "W" then
-	  wputwarg(imm)
-	elseif c == "i" or c == "I" then
-	  if mode == "iJ" then
-	    wputlabel("IMM_", imm, 1)
-	  elseif mode == "iI" and c == "I" then
-	    waction(sz == "w" and "IMM_WB" or "IMM_DB", imm)
-	  else
-	    wputszarg(sz, imm)
-	  end
-	elseif c == "J" then
-	  if mode == "iPJ" then
-	    waction("REL_A", imm) -- !x64 (secpos)
-	  else
-	    wputlabel("REL_", imm, 2)
-	  end
-	elseif c == "s" then
-	  local reg = a.reg
-	  if reg < 0 then
-	    wputb(0)
-	    wvreg("imm.hi", a.vreg)
-	  else
-	    wputb(shl(reg, 4))
-	  end
-	else
-	  werror("bad char `"..c.."' in pattern `"..pat.."' for `"..op.."'")
-	end
-      end
-    end
-  end
-end
-
-------------------------------------------------------------------------------
-
--- Mapping of operand modes to short names. Suppress output with '#'.
-local map_modename = {
-  r = "reg", R = "eax", C = "cl", x = "mem", m = "mrm", i = "imm",
-  f = "stx", F = "st0", J = "lbl", ["1"] = "1",
-  I = "#", S = "#", O = "#",
-}
-
--- Return a table/string showing all possible operand modes.
-local function templatehelp(template, nparams)
-  if nparams == 0 then return "" end
-  local t = {}
-  for tm in gmatch(template, "[^%|]+") do
-    local s = map_modename[sub(tm, 1, 1)]
-    s = s..gsub(sub(tm, 2, nparams), ".", function(c)
-      return ", "..map_modename[c]
-    end)
-    if not match(s, "#") then t[#t+1] = s end
-  end
-  return t
-end
-
--- Match operand modes against mode match part of template.
-local function matchtm(tm, args)
-  for i=1,#args do
-    if not match(args[i].mode, sub(tm, i, i)) then return end
-  end
-  return true
-end
-
--- Handle opcodes defined with template strings.
-map_op[".template__"] = function(params, template, nparams)
-  if not params then return templatehelp(template, nparams) end
-  local args = {}
-
-  -- Zero-operand opcodes have no match part.
-  if #params == 0 then
-    dopattern(template, args, "d", params.op, nil)
-    return
-  end
-
-  -- Determine common operand size (coerce undefined size) or flag as mixed.
-  local sz, szmix, needrex
-  for i,p in ipairs(params) do
-    args[i] = parseoperand(p)
-    local nsz = args[i].opsize
-    if nsz then
-      if sz and sz ~= nsz then szmix = true else sz = nsz end
-    end
-    local nrex = args[i].needrex
-    if nrex ~= nil then
-      if needrex == nil then
-	needrex = nrex
-      elseif needrex ~= nrex then
-	werror("bad mix of byte-addressable registers")
-      end
-    end
-  end
-
-  -- Try all match:pattern pairs (separated by '|').
-  local gotmatch, lastpat
-  for tm in gmatch(template, "[^%|]+") do
-    -- Split off size match (starts after mode match) and pattern string.
-    local szm, pat = match(tm, "^(.-):(.*)$", #args+1)
-    if pat == "" then pat = lastpat else lastpat = pat end
-    if matchtm(tm, args) then
-      local prefix = sub(szm, 1, 1)
-      if prefix == "/" then -- Exactly match leading operand sizes.
-	for i = #szm,1,-1 do
-	  if i == 1 then
-	    dopattern(pat, args, sz, params.op, needrex) -- Process pattern.
-	    return
-	  elseif args[i-1].opsize ~= sub(szm, i, i) then
-	    break
-	  end
-	end
-      else -- Match common operand size.
-	local szp = sz
-	if szm == "" then szm = x64 and "qdwb" or "dwb" end -- Default sizes.
-	if prefix == "1" then szp = args[1].opsize; szmix = nil
-	elseif prefix == "2" then szp = args[2].opsize; szmix = nil end
-	if not szmix and (prefix == "." or match(szm, szp or "#")) then
-	  dopattern(pat, args, szp, params.op, needrex) -- Process pattern.
-	  return
-	end
-      end
-      gotmatch = true
-    end
-  end
-
-  local msg = "bad operand mode"
-  if gotmatch then
-    if szmix then
-      msg = "mixed operand size"
-    else
-      msg = sz and "bad operand size" or "missing operand size"
-    end
-  end
-
-  werror(msg.." in `"..opmodestr(params.op, args).."'")
-end
-
-------------------------------------------------------------------------------
-
--- x64-specific opcode for 64 bit immediates and displacements.
-if x64 then
-  function map_op.mov64_2(params)
-    if not params then return { "reg, imm", "reg, [disp]", "[disp], reg" } end
-    if secpos+2 > maxsecpos then wflush() end
-    local opcode, op64, sz, rex, vreg
-    local op64 = match(params[1], "^%[%s*(.-)%s*%]$")
-    if op64 then
-      local a = parseoperand(params[2])
-      if a.mode ~= "rmR" then werror("bad operand mode") end
-      sz = a.opsize
-      rex = sz == "q" and 8 or 0
-      opcode = 0xa3
-    else
-      op64 = match(params[2], "^%[%s*(.-)%s*%]$")
-      local a = parseoperand(params[1])
-      if op64 then
-	if a.mode ~= "rmR" then werror("bad operand mode") end
-	sz = a.opsize
-	rex = sz == "q" and 8 or 0
-	opcode = 0xa1
-      else
-	if sub(a.mode, 1, 1) ~= "r" or a.opsize ~= "q" then
-	  werror("bad operand mode")
-	end
-	op64 = params[2]
-	if a.reg == -1 then
-	  vreg = a.vreg
-	  opcode = 0xb8
-	else
-	  opcode = 0xb8 + band(a.reg, 7)
-	end
-	rex = a.reg > 7 and 9 or 8
-      end
-    end
-    local psz, sk = wputop(sz, opcode, rex, nil, vreg)
-    wvreg("opcode", vreg, psz, sk)
-    waction("IMM_D", format("(unsigned int)(%s)", op64))
-    waction("IMM_D", format("(unsigned int)((%s)>>32)", op64))
-  end
-end
-
-------------------------------------------------------------------------------
-
--- Pseudo-opcodes for data storage.
-local function op_data(params)
-  if not params then return "imm..." end
-  local sz = sub(params.op, 2, 2)
-  if sz == "a" then sz = addrsize end
-  for _,p in ipairs(params) do
-    local a = parseoperand(p)
-    if sub(a.mode, 1, 1) ~= "i" or (a.opsize and a.opsize ~= sz) then
-      werror("bad mode or size in `"..p.."'")
-    end
-    if a.mode == "iJ" then
-      wputlabel("IMM_", a.imm, 1)
-    else
-      wputszarg(sz, a.imm)
-    end
-    if secpos+2 > maxsecpos then wflush() end
-  end
-end
-
-map_op[".byte_*"] = op_data
-map_op[".sbyte_*"] = op_data
-map_op[".word_*"] = op_data
-map_op[".dword_*"] = op_data
-map_op[".aword_*"] = op_data
-
-------------------------------------------------------------------------------
-
--- Pseudo-opcode to mark the position where the action list is to be emitted.
-map_op[".actionlist_1"] = function(params)
-  if not params then return "cvar" end
-  local name = params[1] -- No syntax check. You get to keep the pieces.
-  wline(function(out) writeactions(out, name) end)
-end
-
--- Pseudo-opcode to mark the position where the global enum is to be emitted.
-map_op[".globals_1"] = function(params)
-  if not params then return "prefix" end
-  local prefix = params[1] -- No syntax check. You get to keep the pieces.
-  wline(function(out) writeglobals(out, prefix) end)
-end
-
--- Pseudo-opcode to mark the position where the global names are to be emitted.
-map_op[".globalnames_1"] = function(params)
-  if not params then return "cvar" end
-  local name = params[1] -- No syntax check. You get to keep the pieces.
-  wline(function(out) writeglobalnames(out, name) end)
-end
-
--- Pseudo-opcode to mark the position where the extern names are to be emitted.
-map_op[".externnames_1"] = function(params)
-  if not params then return "cvar" end
-  local name = params[1] -- No syntax check. You get to keep the pieces.
-  wline(function(out) writeexternnames(out, name) end)
-end
-
-------------------------------------------------------------------------------
-
--- Label pseudo-opcode (converted from trailing colon form).
-map_op[".label_2"] = function(params)
-  if not params then return "[1-9] | ->global | =>pcexpr  [, addr]" end
-  if secpos+2 > maxsecpos then wflush() end
-  local a = parseoperand(params[1])
-  local mode, imm = a.mode, a.imm
-  if type(imm) == "number" and (mode == "iJ" or (imm >= 1 and imm <= 9)) then
-    -- Local label (1: ... 9:) or global label (->global:).
-    waction("LABEL_LG", nil, 1)
-    wputxb(imm)
-  elseif mode == "iJ" then
-    -- PC label (=>pcexpr:).
-    waction("LABEL_PC", imm)
-  else
-    werror("bad label definition")
-  end
-  -- SETLABEL must immediately follow LABEL_LG/LABEL_PC.
-  local addr = params[2]
-  if addr then
-    local a = parseoperand(addr)
-    if a.mode == "iPJ" then
-      waction("SETLABEL", a.imm)
-    else
-      werror("bad label assignment")
-    end
-  end
-end
-map_op[".label_1"] = map_op[".label_2"]
-
-------------------------------------------------------------------------------
-
--- Alignment pseudo-opcode.
-map_op[".align_1"] = function(params)
-  if not params then return "numpow2" end
-  if secpos+1 > maxsecpos then wflush() end
-  local align = tonumber(params[1]) or map_opsizenum[map_opsize[params[1]]]
-  if align then
-    local x = align
-    -- Must be a power of 2 in the range (2 ... 256).
-    for i=1,8 do
-      x = x / 2
-      if x == 1 then
-	waction("ALIGN", nil, 1)
-	wputxb(align-1) -- Action byte is 2**n-1.
-	return
-      end
-    end
-  end
-  werror("bad alignment")
-end
-
--- Spacing pseudo-opcode.
-map_op[".space_2"] = function(params)
-  if not params then return "num [, filler]" end
-  if secpos+1 > maxsecpos then wflush() end
-  waction("SPACE", params[1])
-  local fill = params[2]
-  if fill then
-    fill = tonumber(fill)
-    if not fill or fill < 0 or fill > 255 then werror("bad filler") end
-  end
-  wputxb(fill or 0)
-end
-map_op[".space_1"] = map_op[".space_2"]
-
-------------------------------------------------------------------------------
-
--- Pseudo-opcode for (primitive) type definitions (map to C types).
-map_op[".type_3"] = function(params, nparams)
-  if not params then
-    return nparams == 2 and "name, ctype" or "name, ctype, reg"
-  end
-  local name, ctype, reg = params[1], params[2], params[3]
-  if not match(name, "^[%a_][%w_]*$") then
-    werror("bad type name `"..name.."'")
-  end
-  local tp = map_type[name]
-  if tp then
-    werror("duplicate type `"..name.."'")
-  end
-  if reg and not map_reg_valid_base[reg] then
-    werror("bad base register `"..(map_reg_rev[reg] or reg).."'")
-  end
-  -- Add #type to defines. A bit unclean to put it in map_archdef.
-  map_archdef["#"..name] = "sizeof("..ctype..")"
-  -- Add new type and emit shortcut define.
-  local num = ctypenum + 1
-  map_type[name] = {
-    ctype = ctype,
-    ctypefmt = format("Dt%X(%%s)", num),
-    reg = reg,
-  }
-  wline(format("#define Dt%X(_V) (int)(ptrdiff_t)&(((%s *)0)_V)", num, ctype))
-  ctypenum = num
-end
-map_op[".type_2"] = map_op[".type_3"]
-
--- Dump type definitions.
-local function dumptypes(out, lvl)
-  local t = {}
-  for name in pairs(map_type) do t[#t+1] = name end
-  sort(t)
-  out:write("Type definitions:\n")
-  for _,name in ipairs(t) do
-    local tp = map_type[name]
-    local reg = tp.reg and map_reg_rev[tp.reg] or ""
-    out:write(format("  %-20s %-20s %s\n", name, tp.ctype, reg))
-  end
-  out:write("\n")
-end
-
-------------------------------------------------------------------------------
-
--- Set the current section.
-function _M.section(num)
-  waction("SECTION")
-  wputxb(num)
-  wflush(true) -- SECTION is a terminal action.
-end
-
-------------------------------------------------------------------------------
-
--- Dump architecture description.
-function _M.dumparch(out)
-  out:write(format("DynASM %s version %s, released %s\n\n",
-    _info.arch, _info.version, _info.release))
-  dumpregs(out)
-  dumpactions(out)
-end
-
--- Dump all user defined elements.
-function _M.dumpdef(out, lvl)
-  dumptypes(out, lvl)
-  dumpglobals(out, lvl)
-  dumpexterns(out, lvl)
-end
-
-------------------------------------------------------------------------------
-
--- Pass callbacks from/to the DynASM core.
-function _M.passcb(wl, we, wf, ww)
-  wline, werror, wfatal, wwarn = wl, we, wf, ww
-  return wflush
-end
-
--- Setup the arch-specific module.
-function _M.setup(arch, opt)
-  g_arch, g_opt = arch, opt
-end
-
--- Merge the core maps and the arch-specific maps.
-function _M.mergemaps(map_coreop, map_def)
-  setmetatable(map_op, { __index = map_coreop })
-  setmetatable(map_def, { __index = map_archdef })
-  return map_op, map_def
-end
-
-return _M
-
-------------------------------------------------------------------------------
-