mikepaul-LuaJIT/dynasm/dasm_s390x.lua
Michael Munday 77f283c328 Allow symbols to be used for 12-bit displacements.
The parse_mem_bx function now returns a function to call to add an
action to the action list to handle the evaluation of the
displacement. This allows us to delay adding said action until
after we have emitted the actions for the instruction encodings
themselves.

Code like this should now work:

int x = 24
| st r1, x(sp)
2016-12-01 17:09:45 -05:00

1209 lines
44 KiB
Lua

------------------------------------------------------------------------------
-- DynASM s390x module.
--
-- Copyright (C) 2005-2016 Mike Pall. All rights reserved.
-- See dynasm.lua for full copyright notice.
------------------------------------------------------------------------------
-- Module information:
local _info = {
arch = "s390x",
description = "DynASM s390x 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, setmetatable, rawget = assert, setmetatable, rawget
local _s = string
local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
local match, gmatch, gsub = _s.match, _s.gmatch, _s.gsub
local concat, sort, insert = table.concat, table.sort, table.insert
local bit = bit or require("bit")
local band, shl, shr, sar = bit.band, bit.lshift, bit.rshift, bit.arshift
local ror, tohex = bit.ror, bit.tohex
-- 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 = {
"STOP", "SECTION", "ESC", "REL_EXT",
"ALIGN", "REL_LG", "LABEL_LG",
"REL_PC", "LABEL_PC", "DISP12", "DISP20", "IMM16", "IMM32",
}
-- 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.
local map_action = {}
local max_action = 0
for n,name in ipairs(action_names) do
map_action[name] = n-1
max_action = n
end
-- Action list buffer.
local actlist = {}
-- 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
------------------------------------------------------------------------------
-- 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
if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
out:write("static const unsigned short ", name, "[", nn, "] = {")
local esc = false -- also need to escape for action arguments
for i = 1,nn do
assert(out:write("\n 0x", sub(tohex(actlist[i]), 5, 8)))
if i ~= nn then assert(out:write(",")) end
local name = action_names[actlist[i]+1]
if not esc and name then
assert(out:write(" /* ", name, " */"))
esc = name == "ESC" or name == "SECTION"
else
esc = false
end
end
assert(out:write("\n};\n\n"))
end
------------------------------------------------------------------------------
-- Add halfword to action list.
local function wputxhw(n)
assert(n >= 0 and n <= 0xffff, "halfword out of range")
actlist[#actlist+1] = n
end
-- Add action to list with optional arg. Advance buffer pos, too.
local function waction(action, val, a, num)
local w = assert(map_action[action], "bad action name `"..action.."'")
wputxhw(w)
if val then wputxhw(val) end -- Not sure about this, do we always have one arg?
if a then actargs[#actargs+1] = a end
if a or num then secpos = secpos + (num or 1) end
end
-- Flush action list (intervening C code or buffer pos overflow).
local function wflush(term)
if #actlist == actargs[1] then return end -- Nothing to flush.
if not term then waction("STOP") end -- Terminate action list.
wline(format("dasm_put(Dst, %s);", concat(actargs, ", ")), true)
actargs = { #actlist } -- Actionlist offset is 1st arg to next dasm_put().
secpos = 1 -- The actionlist offset occupies a buffer position, too.
end
-- Put escaped halfword.
local function wputhw(n)
if n <= max_action then waction("ESC") end
wputxhw(n)
end
-- Reserve position for halfword.
local function wpos()
local pos = #actlist+1
actlist[pos] = ""
return pos
end
------------------------------------------------------------------------------
-- Global label name -> global label number. With auto assignment on 1st use.
local next_global = 20
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 > 2047 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=20,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=20,next_global-1 do
out:write(" ", prefix, 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=20,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 = 0
local map_extern_ = {}
local map_extern = setmetatable({}, { __index = function(t, name)
-- No restrictions on the name for now.
local n = next_extern
if n > 2047 then werror("too many extern labels") end
next_extern = n + 1
t[name] = n
map_extern_[n] = name
return n
end})
-- Dump extern labels.
local function dumpexterns(out, lvl)
out:write("Extern labels:\n")
for i=0,next_extern-1 do
out:write(format(" %s\n", map_extern_[i]))
end
out:write("\n")
end
-- Write extern label names.
local function writeexternnames(out, name)
out:write("static const char *const ", name, "[] = {\n")
for i=0,next_extern-1 do
out:write(" \"", map_extern_[i], "\",\n")
end
out:write(" (const char *)0\n};\n")
end
------------------------------------------------------------------------------
-- Arch-specific maps.
-- Ext. register name -> int. name.
local map_archdef = { sp = "r15" }
-- Int. register name -> ext. name.
local map_reg_rev = { r15 = "sp" }
local map_type = {} -- Type name -> { ctype, reg }
local ctypenum = 0 -- Type number (for Dt... macros).
-- Reverse defines for registers.
function _M.revdef(s)
return map_reg_rev[s] or s
end
local map_cond = {
o = 1, h = 2, hle = 3, l = 4,
nhe = 5, lh = 6, ne = 7, e = 8,
nlh = 9, he = 10, nl = 11, le = 12,
nh = 13, no = 14, [""] = 15,
}
------------------------------------------------------------------------------
local parse_reg_type
local function parse_gpr(expr)
local r = match(expr, "^r(1?[0-9])$")
if r then
r = tonumber(r)
if r <= 15 then return r, tp end
end
werror("bad register name `"..expr.."'")
end
local function parse_fpr(expr)
local r = match(expr, "^f(1?[0-9])$")
if r then
r = tonumber(r)
if r <= 15 then return r end
end
werror("bad register name `"..expr.."'")
end
local parse_ctx = {}
local loadenv = setfenv and function(s)
local code = loadstring(s, "")
if code then setfenv(code, parse_ctx) end
return code
end or function(s)
return load(s, "", nil, parse_ctx)
end
-- Try to parse simple arithmetic, too, since some basic ops are aliases.
local function parse_number(n)
local x = tonumber(n)
if x then return x end
local code = loadenv("return "..n)
if code then
local ok, y = pcall(code)
if ok then return y end
end
return nil
end
local function is_uint12(num)
return 0 <= num and num < 4096
end
local function is_int20(num)
return -shl(1, 19) <= num and num < shl(1, 19)
end
-- Split a memory operand of the form d(b) or d(x,b) into d, x and b.
-- If x is not specified then it is 0.
local function split_memop(arg)
local reg = "r1?[0-9]"
local d, x, b = match(arg, "^(.*)%(("..reg.."), ("..reg..")%)$")
if d then
return d, parse_gpr(x), parse_gpr(b)
end
local d, b = match(arg, "^(.*)%(("..reg..")%)$")
if d then
return d, 0, parse_gpr(b)
end
-- TODO: handle values without registers?
-- TODO: handle registers without a displacement?
werror("bad memory operand: "..arg)
return nil
end
-- Parse memory operand of the form d(b) where 0 <= d < 4096 and b is a GPR.
-- Encoded as: bddd
local function parse_mem_b(arg)
werror("parse_mem_b: not implemented")
return nil
end
-- Parse memory operand of the form d(x, b) where 0 <= d < 4096 and b and x
-- are GPRs.
-- If the fourth return value is not-nil then it needs to be called to
-- insert an action.
-- Encoded as: xbddd
local function parse_mem_bx(arg)
local d, x, b = split_memop(arg)
local dval = tonumber(d)
if dval then
if not is_uint12(dval) then
werror("displacement out of range: ", dval)
end
return dval, x, b, nil
end
if match(d, "^[rf]1?[0-9]?") then
werror("expected immediate operand, got register")
end
return 0, x, b, function() waction("DISP12", nil, d) end
end
-- Parse memory operand of the form d(b) where -(2^20)/2 <= d < (2^20)/2 and
-- b is a GPR.
-- Encoded as: blllhh (ls are the low-bits of d, and hs are the high bits).
local function parse_mem_by(arg)
werror("parse_mem_by: not implemented")
return nil
end
-- Parse memory operand of the form d(x, b) where -(2^20)/2 <= d < (2^20)/2
-- and b and x are GPRs.
-- Encoded as: xblllhh (ls are the low-bits of d, and hs are the high bits).
local function parse_mem_bxy(arg)
werror("parse_mem_bxy: not implemented")
return nil
end
local function parse_label(label, def)
local prefix = sub(label, 1, 2)
-- =>label (pc label reference)
if prefix == "=>" then
return "PC", 0, sub(label, 3)
end
-- ->name (global label reference)
if prefix == "->" then
return "LG", map_global[sub(label, 3)]
end
if def then
-- [1-9] (local label definition)
if match(label, "^[1-9]$") then
return "LG", 10+tonumber(label)
end
else
-- [<>][1-9] (local label reference)
local dir, lnum = match(label, "^([<>])([1-9])$")
if dir then -- Fwd: 1-9, Bkwd: 11-19.
return "LG", lnum + (dir == ">" and 0 or 10)
end
-- extern label (extern label reference)
local extname = match(label, "^extern%s+(%S+)$")
if extname then
return "EXT", map_extern[extname]
end
end
werror("bad label `"..label.."'")
end
local function branch_type(op)
if band(op, 0x7c000000) == 0x14000000 then return 0 -- B, BL
elseif shr(op, 24) == 0x54 or band(op, 0x7e000000) == 0x34000000 or
band(op, 0x3b000000) == 0x18000000 then
return 0x800 -- B.cond, CBZ, CBNZ, LDR* literal
elseif band(op, 0x7e000000) == 0x36000000 then return 0x1000 -- TBZ, TBNZ
elseif band(op, 0x9f000000) == 0x10000000 then return 0x2000 -- ADR
elseif band(op, 0x9f000000) == band(0x90000000) then return 0x3000 -- ADRP
else
assert(false, "unknown branch type")
end
end
------------------------------------------------------------------------------
local map_op, op_template
local function op_alias(opname, f)
return function(params, nparams)
if not params then return "-> "..opname:sub(1, -3) end
f(params, nparams)
op_template(params, map_op[opname], nparams)
end
end
-- Template strings for s390x instructions.
map_op = {
a_2 = "000000005a000000j",
ar_2 = "0000000000001a00g",
ay_2 = "0000e3000000005al",
ag_2 = "0000e30000000008l",
agr_2 = "00000000b9080000h",
agf_2 = "0000e30000000018l",
agfr_2 = "00000000b9180000h",
axbr_2 = "00000000b34a0000h",
adbr_2 = "00000000b31a0000h",
aebr_2 = "00000000b30a0000h",
ah_2 = "000000004a000000j",
ahy_2 = "0000e3000000007al",
afi_2 = "0000c20900000000n",
agfi_2 = "0000c20800000000n",
aih_2 = "0000cc0800000000n",
al_2 = "000000005e000000j",
alr_2 = "0000000000001e00g",
aly_2 = "0000e3000000005el",
alg_2 = "0000e3000000000al",
algr_2 = "00000000b90a0000h",
algf_2 = "0000e3000000001al",
algfr_2 = "00000000b91a0000h",
alfi_2 = "0000c20b00000000n",
algfi_2 = "0000c20a00000000n",
alc_2 = "0000e30000000098l",
alcr_2 = "00000000b9980000h",
alcg_2 = "0000e30000000088l",
alcgr_2 = "00000000b9880000h",
alsih_2 = "0000cc0a00000000n",
alsihn_2 = "0000cc0b00000000n",
axr_2 = "0000000000003600g",
ad_2 = "000000006a000000j",
adr_2 = "0000000000002a00g",
ae_2 = "000000007a000000j",
aer_2 = "0000000000003a00g",
aw_2 = "000000006e000000j",
awr_2 = "0000000000002e00g",
au_2 = "000000007e000000j",
aur_2 = "0000000000003e00g",
n_2 = "0000000054000000j",
nr_2 = "0000000000001400g",
ny_2 = "0000e30000000054l",
ng_2 = "0000e30000000080l",
ngr_2 = "00000000b9800000h",
nihf_2 = "0000c00a00000000n",
nilf_2 = "0000c00b00000000n",
bal_2 = "0000000045000000j",
balr_2 = "000000000000500g",
bas_2 = "000000004d000000j",
basr_2 = "0000000000000d00g",
bassm_2 = "0000000000000c00g",
bsa_2 = "00000000b25a0000h",
bsm_2 = "0000000000000b00g",
bakr_2 = "00000000b2400000h",
bsg_2 = "00000000b2580000h",
bc_2 = "0000000047000000k",
bcr_2 = "000000000000700g",
bct_2 = "0000000046000000j",
bctr_2 = "000000000000600g",
bctg_2 = "0000e30000000046l",
bctgr_2 = "00000000b9460000h",
bxh_3 = "0000000086000000q",
bxhg_3 = "0000eb0000000044s",
bxle_3 = "0000000087000000q",
bxleg_3 = "0000eb0000000045s",
brasl_2 = "0000c00500000000o",
brcl_2 = "0000c00400000000p",
brcth_2 = "0000cc0600000000o",
cksm_2 = "00000000b2410000h",
km_2 = "00000000b92e0000h",
kmf_2 = "00000000b92a0000h",
kmc_2 = "00000000b92f0000h",
kmo_2 = "00000000b92b0000h",
c_2 = "0000000059000000j",
cr_2 = "0000000000001900g",
cy_2 = "0000e30000000059l",
cg_2 = "0000e30000000020l",
cgr_2 = "00000000b9200000h",
cgf_2 = "0000e30000000030l",
cgfr_2 = "00000000b9300000h",
cxbr_2 = "00000000b3490000h",
cxtr_2 = "00000000b3ec0000h",
cxr_2 = "00000000b3690000h",
cdbr_2 = "00000000b3190000h",
cdtr_2 = "00000000b3e40000h",
cd_2 = "0000000069000000j",
cdr_2 = "0000000000002900g",
cebr_2 = "00000000b3090000h",
ce_2 = "0000000079000000j",
cer_2 = "0000000000003900g",
kxbr_2 = "00000000b3480000h",
kxtr_2 = "00000000b3e80000h",
kdbr_2 = "00000000b3180000h",
kdtr_2 = "00000000b3e00000h",
kebr_2 = "00000000b3080000h",
cs_3 = "00000000ba000000q",
csy_3 = "0000eb0000000014s",
csg_3 = "0000eb0000000030s",
csp_2 = "00000000b2500000h",
cspg_2 = "00000000b98a0000h",
cextr_2 = "00000000b3fc0000h",
cedtr_2 = "00000000b3f40000h",
cds_3 = "00000000bb000000q",
cdsy_3 = "0000eb0000000031s",
cdsg_3 = "0000eb000000003es",
ch_2 = "0000000049000000j",
chy_2 = "0000e30000000079l",
cgh_2 = "0000e30000000034l",
chrl_2 = "0000c60500000000o",
cghrl_2 = "0000c60400000000o",
chf_2 = "0000e300000000cdl",
chhr_2 = "00000000b9cd0000h",
chlr_2 = "00000000b9dd0000h",
cfi_2 = "0000c20d00000000n",
cgfi_2 = "0000c20c00000000n",
cih_2 = "0000cc0d00000000n",
cl_2 = "0000000055000000j",
clr_2 = "0000000000001500g",
cly_2 = "0000e30000000055l",
clg_2 = "0000e30000000021l",
clgr_2 = "00000000b9210000h",
clgf_2 = "0000e30000000031l",
clgfr_2 = "00000000b9310000h",
clmh_3 = "0000eb0000000020t",
clm_3 = "00000000bd000000r",
clmy_3 = "0000eb0000000021t",
clhf_2 = "0000e300000000cfl",
clhhr_2 = "00000000b9cf0000h",
clhlr_2 = "00000000b9df0000h",
clfi_2 = "0000c20f00000000n",
clgfi_2 = "0000c20e00000000n",
clih_2 = "0000cc0f00000000n",
clcl_2 = "0000000000000f00g",
clcle_3 = "00000000a9000000q",
clclu_3 = "0000eb000000008fs",
clrl_2 = "0000c60f00000000o",
clhrl_2 = "0000c60700000000o",
clgrl_2 = "0000c60a00000000o",
clghrl_2 = "0000c60600000000o",
clgfrl_2 = "0000c60e00000000o",
clst_2 = "00000000b25d0000h",
crl_2 = "0000c60d00000000o",
cgrl_2 = "0000c60800000000o",
cgfrl_2 = "0000c60c00000000o",
cuse_2 = "00000000b2570000h",
cmpsc_2 = "00000000b2630000h",
kimd_2 = "00000000b93e0000h",
klmd_2 = "00000000b93f0000h",
kmac_2 = "00000000b91e0000h",
thdr_2 = "00000000b3590000h",
thder_2 = "00000000b3580000h",
cxfbr_2 = "00000000b3960000h",
cxftr_2 = "00000000b9590000h",
cxfr_2 = "00000000b3b60000h",
cdfbr_2 = "00000000b3950000h",
cdftr_2 = "00000000b9510000h",
cdfr_2 = "00000000b3b50000h",
cefbr_2 = "00000000b3940000h",
cefr_2 = "00000000b3b40000h",
cxgbr_2 = "00000000b3a60000h",
cxgtr_2 = "00000000b3f90000h",
cxgr_2 = "00000000b3c60000h",
cdgbr_2 = "00000000b3a50000h",
cdgtr_2 = "00000000b3f10000h",
cdgr_2 = "00000000b3c50000h",
cegbr_2 = "00000000b3a40000h",
cegr_2 = "00000000b3c40000h",
cxstr_2 = "00000000b3fb0000h",
cdstr_2 = "00000000b3f30000h",
cxutr_2 = "00000000b3fa0000h",
cdutr_2 = "00000000b3f20000h",
cvb_2 = "000000004f000000j",
cvby_2 = "0000e30000000006l",
cvbg_2 = "0000e3000000000el",
cvd_2 = "000000004e000000j",
cvdy_2 = "0000e30000000026l",
cvdg_2 = "0000e3000000002el",
cuxtr_2 = "00000000b3ea0000h",
cudtr_2 = "00000000b3e20000h",
cu42_2 = "00000000b9b30000h",
cu41_2 = "00000000b9b20000h",
cpya_2 = "00000000b24d0000h",
d_2 = "000000005d000000j",
dr_2 = "0000000000001d00g",
dxbr_2 = "00000000b34d0000h",
dxr_2 = "00000000b22d0000h",
ddbr_2 = "00000000b31d0000h",
dd_2 = "000000006d000000j",
ddr_2 = "0000000000002d00g",
debr_2 = "00000000b30d0000h",
de_2 = "000000007d000000j",
der_2 = "0000000000003d00g",
dl_2 = "0000e30000000097l",
dlr_2 = "00000000b9970000h",
dlg_2 = "0000e30000000087l",
dlgr_2 = "00000000b9870000h",
dsg_2 = "0000e3000000000dl",
dsgr_2 = "00000000b90d0000h",
dsgf_2 = "0000e3000000001dl",
dsgfr_2 = "00000000b91d0000h",
x_2 = "0000000057000000j",
xr_2 = "0000000000001700g",
xy_2 = "0000e30000000057l",
xg_2 = "0000e30000000082l",
xgr_2 = "00000000b9820000h",
xihf_2 = "0000c00600000000n",
xilf_2 = "0000c00700000000n",
ex_2 = "0000000044000000j",
exrl_2 = "0000c60000000000o",
ear_2 = "00000000b24f0000h",
esea_2 = "00000000b99d0000h",
eextr_2 = "00000000b3ed0000h",
eedtr_2 = "00000000b3e50000h",
ecag_3 = "0000eb000000004cs",
efpc_2 = "00000000b38c0000h",
epar_2 = "00000000b2260000h",
epair_2 = "00000000b99a0000h",
epsw_2 = "00000000b98d0000h",
esar_2 = "00000000b2270000h",
esair_2 = "00000000b99b0000h",
esxtr_2 = "00000000b3ef0000h",
esdtr_2 = "00000000b3e70000h",
ereg_2 = "00000000b2490000h",
eregg_2 = "00000000b90e0000h",
esta_2 = "00000000b24a0000h",
flogr_2 = "00000000b9830000h",
hdr_2 = "0000000000002400g",
her_2 = "0000000000003400g",
iac_2 = "00000000b2240000h",
ic_2 = "0000000043000000j",
icy_2 = "0000e30000000073l",
icmh_3 = "0000eb0000000080t",
icm_3 = "00000000bf000000r",
icmy_3 = "0000eb0000000081t",
iihf_2 = "0000c00800000000n",
iilf_2 = "0000c00900000000n",
ipm_2 = "00000000b2220000h",
iske_2 = "00000000b2290000h",
ivsk_2 = "00000000b2230000h",
l_2 = "0000000058000000j",
lr_2 = "0000000000001800g",
ly_2 = "0000e30000000058l",
lg_2 = "0000e30000000004l",
lgr_2 = "00000000b9040000h",
lgf_2 = "0000e30000000014l",
lgfr_2 = "00000000b9140000h",
lxr_2 = "00000000b3650000h",
ld_2 = "0000000068000000j",
ldr_2 = "0000000000002800g",
ldy_2 = "0000ed0000000065l",
le_2 = "0000000078000000j",
ler_2 = "0000000000003800g",
ley_2 = "0000ed0000000064l",
lam_3 = "000000009a000000q",
lamy_3 = "0000eb000000009as",
la_2 = "0000000041000000j",
lay_2 = "0000e30000000071l",
lae_2 = "0000000051000000j",
laey_2 = "0000e30000000075l",
larl_2 = "0000c00000000000o",
laa_3 = "0000eb00000000f8s",
laag_3 = "0000eb00000000e8s",
laal_3 = "0000eb00000000fas",
laalg_3 = "0000eb00000000eas",
lan_3 = "0000eb00000000f4s",
lang_3 = "0000eb00000000e4s",
lax_3 = "0000eb00000000f7s",
laxg_3 = "0000eb00000000e7s",
lao_3 = "0000eb00000000f6s",
laog_3 = "0000eb00000000e6s",
lt_2 = "0000e30000000012l",
ltr_2 = "0000000000001200g",
ltg_2 = "0000e30000000002l",
ltgr_2 = "00000000b9020000h",
ltgf_2 = "0000e30000000032l",
ltgfr_2 = "00000000b9120000h",
ltxbr_2 = "00000000b3420000h",
ltxtr_2 = "00000000b3de0000h",
ltxr_2 = "00000000b3620000h",
ltdbr_2 = "00000000b3120000h",
ltdtr_2 = "00000000b3d60000h",
ltdr_2 = "0000000000002200g",
ltebr_2 = "00000000b3020000h",
lter_2 = "0000000000003200g",
lb_2 = "0000e30000000076l",
lbr_2 = "00000000b9260000h",
lgb_2 = "0000e30000000077l",
lgbr_2 = "00000000b9060000h",
lbh_2 = "0000e300000000c0l",
lcr_2 = "0000000000001300g",
lcgr_2 = "00000000b9030000h",
lcgfr_2 = "00000000b9130000h",
lcxbr_2 = "00000000b3430000h",
lcxr_2 = "00000000b3630000h",
lcdbr_2 = "00000000b3130000h",
lcdr_2 = "0000000000002300g",
lcdfr_2 = "00000000b3730000h",
lcebr_2 = "00000000b3030000h",
lcer_2 = "0000000000003300g",
lctl_3 = "00000000b7000000q",
lctlg_3 = "0000eb000000002fs",
fixr_2 = "00000000b3670000h",
fidr_2 = "00000000b37f0000h",
fier_2 = "00000000b3770000h",
ldgr_2 = "00000000b3c10000h",
lgdr_2 = "00000000b3cd0000h",
lh_2 = "0000000048000000j",
lhr_2 = "00000000b9270000h",
lhy_2 = "0000e30000000078l",
lgh_2 = "0000e30000000015l",
lghr_2 = "00000000b9070000h",
lhh_2 = "0000e300000000c4l",
lhrl_2 = "0000c40500000000o",
lghrl_2 = "0000c40400000000o",
lfh_2 = "0000e300000000cal",
lgfi_2 = "0000c00100000000n",
lxdbr_2 = "00000000b3050000h",
lxdr_2 = "00000000b3250000h",
lxebr_2 = "00000000b3060000h",
lxer_2 = "00000000b3260000h",
ldebr_2 = "00000000b3040000h",
lder_2 = "00000000b3240000h",
llgf_2 = "0000e30000000016l",
llgfr_2 = "00000000b9160000h",
llc_2 = "0000e30000000094l",
llcr_2 = "00000000b9940000h",
llgc_2 = "0000e30000000090l",
llgcr_2 = "00000000b9840000h",
llch_2 = "0000e300000000c2l",
llh_2 = "0000e30000000095l",
llhr_2 = "00000000b9950000h",
llgh_2 = "0000e30000000091l",
llghr_2 = "00000000b9850000h",
llhh_2 = "0000e300000000c6l",
llhrl_2 = "0000c40200000000o",
llghrl_2 = "0000c40600000000o",
llihf_2 = "0000c00e00000000n",
llilf_2 = "0000c00f00000000n",
llgfrl_2 = "0000c40e00000000o",
llgt_2 = "0000e30000000017l",
llgtr_2 = "00000000b9170000h",
lm_3 = "0000000098000000q",
lmy_3 = "0000eb0000000098s",
lmg_3 = "0000eb0000000004s",
lmh_3 = "0000eb0000000096s",
lnr_2 = "0000000000001100g",
lngr_2 = "00000000b9010000h",
lngfr_2 = "00000000b9110000h",
lnxbr_2 = "00000000b3410000h",
lnxr_2 = "00000000b3610000h",
lndbr_2 = "00000000b3110000h",
lndr_2 = "0000000000002100g",
lndfr_2 = "00000000b3710000h",
lnebr_2 = "00000000b3010000h",
lner_2 = "0000000000003100g",
loc_3 = "0000eb00000000f2t",
locg_3 = "0000eb00000000e2t",
lpq_2 = "0000e3000000008fl",
lpr_2 = "0000000000001000g",
lpgr_2 = "00000000b9000000h",
lpgfr_2 = "00000000b9100000h",
lpxbr_2 = "00000000b3400000h",
lpxr_2 = "00000000b3600000h",
lpdbr_2 = "00000000b3100000h",
lpdr_2 = "0000000000002000g",
lpdfr_2 = "00000000b3700000h",
lpebr_2 = "00000000b3000000h",
lper_2 = "0000000000003000g",
lra_2 = "00000000b1000000j",
lray_2 = "0000e30000000013l",
lrag_2 = "0000e30000000003l",
lrl_2 = "0000c40d00000000o",
lgrl_2 = "0000c40800000000o",
lgfrl_2 = "0000c40c00000000o",
lrvh_2 = "0000e3000000001fl",
lrv_2 = "0000e3000000001el",
lrvr_2 = "00000000b91f0000h",
lrvg_2 = "0000e3000000000fl",
lrvgr_2 = "00000000b90f0000h",
ldxbr_2 = "00000000b3450000h",
ldxr_2 = "0000000000002500g",
lrdr_2 = "0000000000002500g",
lexbr_2 = "00000000b3460000h",
lexr_2 = "00000000b3660000h",
ledbr_2 = "00000000b3440000h",
ledr_2 = "0000000000003500g",
lrer_2 = "0000000000003500g",
lura_2 = "00000000b24b0000h",
lurag_2 = "00000000b9050000h",
lzxr_2 = "00000000b3760000h",
lzdr_2 = "00000000b3750000h",
lzer_2 = "00000000b3740000h",
msta_2 = "00000000b2470000h",
mvcl_2 = "0000000000000e00g",
mvcle_3 = "00000000a8000000q",
mvclu_3 = "0000eb000000008es",
mvpg_2 = "00000000b2540000h",
mvst_2 = "00000000b2550000h",
m_2 = "000000005c000000j",
mfy_2 = "0000e3000000005cl",
mr_2 = "0000000000001c00g",
mxbr_2 = "00000000b34c0000h",
mxr_2 = "0000000000002600g",
mdbr_2 = "00000000b31c0000h",
md_2 = "000000006c000000j",
mdr_2 = "0000000000002c00g",
mxdbr_2 = "00000000b3070000h",
mxd_2 = "0000000067000000j",
mxdr_2 = "0000000000002700g",
meebr_2 = "00000000b3170000h",
meer_2 = "00000000b3370000h",
mdebr_2 = "00000000b30c0000h",
mde_2 = "000000007c000000j",
mder_2 = "0000000000003c00g",
me_2 = "000000007c000000j",
mer_2 = "0000000000003c00g",
mh_2 = "000000004c000000j",
mhy_2 = "0000e3000000007cl",
mlg_2 = "0000e30000000086l",
mlgr_2 = "00000000b9860000h",
ml_2 = "0000e30000000096l",
mlr_2 = "00000000b9960000h",
ms_2 = "0000000071000000j",
msr_2 = "00000000b2520000h",
msy_2 = "0000e30000000051l",
msg_2 = "0000e3000000000cl",
msgr_2 = "00000000b90c0000h",
msgf_2 = "0000e3000000001cl",
msgfr_2 = "00000000b91c0000h",
msfi_2 = "0000c20100000000n",
msgfi_2 = "0000c20000000000n",
o_2 = "0000000056000000j",
or_2 = "0000000000001600g",
oy_2 = "0000e30000000056l",
og_2 = "0000e30000000081l",
ogr_2 = "00000000b9810000h",
oihf_2 = "0000c00c00000000n",
oilf_2 = "0000c00d00000000n",
pgin_2 = "00000000b22e0000h",
pgout_2 = "00000000b22f0000h",
pcc_2 = "00000000b92c0000h",
pckmo_2 = "00000000b9280000h",
pfmf_2 = "00000000b9af0000h",
ptf_2 = "00000000b9a20000h",
popcnt_2 = "00000000b9e10000h",
pfd_2 = "0000e30000000036m",
pfdrl_2 = "0000c60200000000p",
pt_2 = "00000000b2280000h",
pti_2 = "00000000b99e0000h",
palb_2 = "00000000b2480000h",
rrbe_2 = "00000000b22a0000h",
rrbm_2 = "00000000b9ae0000h",
rll_3 = "0000eb000000001ds",
rllg_3 = "0000eb000000001cs",
srst_2 = "00000000b25e0000h",
srstu_2 = "00000000b9be0000h",
sar_2 = "00000000b24e0000h",
sfpc_2 = "00000000b3840000h",
sfasr_2 = "00000000b3850000h",
spm_2 = "000000000000400g",
ssar_2 = "00000000b2250000h",
ssair_2 = "00000000b99f0000h",
slda_3 = "000000008f000000q",
sldl_3 = "000000008d000000q",
sla_3 = "000000008b000000q",
slak_3 = "0000eb00000000dds",
slag_3 = "0000eb000000000bs",
sll_3 = "0000000089000000q",
sllk_3 = "0000eb00000000dfs",
sllg_3 = "0000eb000000000ds",
srda_3 = "000000008e000000q",
srdl_3 = "000000008c000000q",
sra_3 = "000000008a000000q",
srak_3 = "0000eb00000000dcs",
srag_3 = "0000eb000000000as",
srl_3 = "0000000088000000q",
srlk_3 = "0000eb00000000des",
srlg_3 = "0000eb000000000cs",
sqxbr_2 = "00000000b3160000h",
sqxr_2 = "00000000b3360000h",
sqdbr_2 = "00000000b3150000h",
sqdr_2 = "00000000b2440000h",
sqebr_2 = "00000000b3140000h",
sqer_2 = "00000000b2450000h",
st_2 = "0000000050000000j",
sty_2 = "0000e30000000050l",
stg_2 = "0000e30000000024l",
std_2 = "0000000060000000j",
stdy_2 = "0000ed0000000067l",
ste_2 = "0000000070000000j",
stey_2 = "0000ed0000000066l",
stam_3 = "000000009b000000q",
stamy_3 = "0000eb000000009bs",
stc_2 = "0000000042000000j",
stcy_2 = "0000e30000000072l",
stch_2 = "0000e300000000c3l",
stcmh_3 = "0000eb000000002ct",
stcm_3 = "00000000be000000r",
stcmy_3 = "0000eb000000002dt",
stctl_3 = "00000000b6000000q",
stctg_3 = "0000eb0000000025s",
sth_2 = "0000000040000000j",
sthy_2 = "0000e30000000070l",
sthh_2 = "0000e300000000c7l",
sthrl_2 = "0000c40700000000o",
stfh_2 = "0000e300000000cbl",
stm_3 = "0000000090000000q",
stmy_3 = "0000eb0000000090s",
stmg_3 = "0000eb0000000024s",
stmh_3 = "0000eb0000000026s",
stoc_3 = "0000eb00000000f3t",
stocg_3 = "0000eb00000000e3t",
stpq_2 = "0000e3000000008el",
strl_2 = "0000c40f00000000o",
stgrl_2 = "0000c40b00000000o",
strvh_2 = "0000e3000000003fl",
strv_2 = "0000e3000000003el",
strvg_2 = "0000e3000000002fl",
stura_2 = "00000000b2460000h",
sturg_2 = "00000000b9250000h",
s_2 = "000000005b000000j",
sr_2 = "0000000000001b00g",
sy_2 = "0000e3000000005bl",
sg_2 = "0000e30000000009l",
sgr_2 = "00000000b9090000h",
sgf_2 = "0000e30000000019l",
sgfr_2 = "00000000b9190000h",
sxbr_2 = "00000000b34b0000h",
sdbr_2 = "00000000b31b0000h",
sebr_2 = "00000000b30b0000h",
sh_2 = "000000004b000000j",
shy_2 = "0000e3000000007bl",
sl_2 = "000000005f000000j",
slr_2 = "0000000000001f00g",
sly_2 = "0000e3000000005fl",
slg_2 = "0000e3000000000bl",
slgr_2 = "00000000b90b0000h",
slgf_2 = "0000e3000000001bl",
slgfr_2 = "00000000b91b0000h",
slfi_2 = "0000c20500000000n",
slgfi_2 = "0000c20400000000n",
slb_2 = "0000e30000000099l",
slbr_2 = "00000000b9990000h",
slbg_2 = "0000e30000000089l",
slbgr_2 = "00000000b9890000h",
sxr_2 = "0000000000003700g",
sd_2 = "000000006b000000j",
sdr_2 = "0000000000002b00g",
se_2 = "000000007b000000j",
ser_2 = "0000000000003b00g",
su_2 = "000000007f000000j",
sur_2 = "0000000000003f00g",
sw_2 = "000000006f000000j",
swr_2 = "0000000000002f00g",
tar_2 = "00000000b24c0000h",
tb_2 = "00000000b22c0000h",
trace_3 = "0000000099000000q",
tracg_3 = "0000eb000000000fs",
tre_2 = "00000000b2a50000h",
}
for cond,c in pairs(map_cond) do
-- Extended mnemonics for branches.
-- TODO: replace 'B' with correct encoding.
-- brc
map_op["j"..cond.."_1"] = "00000000"..tohex(0xa7040000+shl(c, 20)).."w"
-- brcl
map_op["jg"..cond.."_1"] = tohex(0xc004+shl(c, 4)).."00000000".."x"
-- bc
map_op["b"..cond.."_1"] = "00000000"..tohex(0x47000000+shl(c, 20)).."y"
-- bcr
map_op["b"..cond.."r_1"] = "00000000"..tohex(0x0700+shl(c, 4)).."z"
end
------------------------------------------------------------------------------
-- Handle opcodes defined with template strings.
local function parse_template(params, template, nparams, pos)
-- Read the template in 16-bit chunks.
-- Leading halfword zeroes should not be written out.
local op0 = tonumber(sub(template, 5, 8), 16)
local op1 = tonumber(sub(template, 9, 12), 16)
local op2 = tonumber(sub(template, 13, 16), 16)
local n,rs = 1,26
parse_reg_type = false
-- Process each character.
-- TODO
-- 12-bit displacements (DISP12) and 16-bit immediates (IMM16) can be put at
-- one of two locations relative to the end of the instruction.
-- To make decoding easier we should insert the actions for these immediately
-- after the halfword they modify.
-- For example, take the instruction ahik, which is laid out as follows (each
-- char is 4 bits):
-- o = op code, r = register, i = immediate
-- oorr iiii 00oo
-- This should be emitted as oorr, followed by the immediate action, followed by
-- 00oo.
for p in gmatch(sub(template, 17), ".") do
local pr1,pr2,pr3
if p == "g" then
pr1,pr2=params[n],params[n+1]
op2 = op2 + shl(parse_gpr(pr1),4) + parse_gpr(pr2)
wputhw(op2)
elseif p == "h" then
pr1,pr2=params[n],params[n+1]
op2 = op2 + shl(parse_gpr(pr1),4) + parse_gpr(pr2)
wputhw(op1); wputhw(op2)
elseif p == "j" then
local d, x, b, a = parse_mem_bx(params[2])
op1 = op1 + shl(parse_gpr(params[1]), 4) + x
op2 = op2 + shl(b, 12) + d
wputhw(op1); wputhw(op2);
if a then
a()
end
elseif p == "k" then
elseif p == "l" then
elseif p == "m" then
elseif p == "n" then
elseif p == "y" then
local d, x, b, a = parse_mem_bx(params[1])
op1 = op1 + x
op2 = op2 + shl(b, 12) + d
wputhw(op1); wputhw(op2);
if a then
a()
end
elseif p == "z" then
op2 = op2 + parse_gpr(params[1])
wputhw(op2)
end
end
end
function op_template(params, template, nparams)
if not params then return template:gsub("%x%x%x%x%x%x%x%x", "") end
-- Limit number of section buffer positions used by a single dasm_put().
-- A single opcode needs a maximum of 5 positions.
if secpos+5 > maxsecpos then wflush() end
local lpos, apos, spos = #actlist, #actargs, secpos
local ok, err
for t in gmatch(template, "[^|]+") do
ok, err = pcall(parse_template, params, t, nparams)
if ok then return end
secpos = spos
actlist[lpos+1] = nil
actlist[lpos+2] = nil
actlist[lpos+3] = nil
actargs[apos+1] = nil
actargs[apos+2] = nil
actargs[apos+3] = nil
end
error(err, 0)
end
map_op[".template__"] = op_template
------------------------------------------------------------------------------
-- 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_1"] = function(params)
if not params then return "[1-9] | ->global | =>pcexpr" end
if secpos+1 > maxsecpos then wflush() end
local mode, n, s = parse_label(params[1], true)
if mode == "EXT" then werror("bad label definition") end
waction("LABEL_"..mode, n, s, 1)
end
------------------------------------------------------------------------------
-- Pseudo-opcodes for data storage.
map_op[".long_*"] = function(params)
if not params then return "imm..." end
for _,p in ipairs(params) do
local n = tonumber(p)
if not n then werror("bad immediate `"..p.."'") end
if n < 0 then n = n + 2^32 end
wputw(n)
if secpos+2 > maxsecpos then wflush() end
end
end
-- 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])
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", align-1, nil, 1) -- Action byte is 2**n-1.
return
end
end
end
werror("bad alignment")
end
------------------------------------------------------------------------------
-- 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
-- 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 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", 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))
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
------------------------------------------------------------------------------