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protobuf/third_party/dynasm/dasm_ppc.lua

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------------------------------------------------------------------------------
-- DynASM PPC module.
--
-- Copyright (C) 2005-2012 Mike Pall. All rights reserved.
-- See dynasm.lua for full copyright notice.
------------------------------------------------------------------------------
-- Module information:
local _info = {
arch = "ppc",
description = "DynASM PPC module",
version = "1.3.0",
vernum = 10300,
release = "2011-05-05",
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 = assert, setmetatable
local _s = string
local sub, format, byte, char = _s.sub, _s.format, _s.byte, _s.char
local match, gmatch = _s.match, _s.gmatch
local concat, sort = table.concat, table.sort
-- 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", "IMM",
}
-- 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 = {}
for n,name in ipairs(action_names) do
map_action[name] = n-1
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
------------------------------------------------------------------------------
-- Return 8 digit hex number.
local function tohex(x)
return sub(format("%08x", x), -8) -- Avoid 64 bit portability problem in Lua.
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
if nn == 0 then nn = 1; actlist[0] = map_action.STOP end
out:write("static const unsigned int ", name, "[", nn, "] = {\n")
for i = 1,nn-1 do
assert(out:write("0x", tohex(actlist[i]), ",\n"))
end
assert(out:write("0x", tohex(actlist[nn]), "\n};\n\n"))
end
------------------------------------------------------------------------------
-- Add word to action list.
local function wputxw(n)
assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word 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.."'")
wputxw(w * 0x10000 + (val or 0))
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 word.
local function wputw(n)
if n <= 0xffffff then waction("ESC") end
wputxw(n)
end
-- Reserve position for word.
local function wpos()
local pos = #actlist+1
actlist[pos] = ""
return pos
end
-- Store word to reserved position.
local function wputpos(pos, n)
assert(n >= 0 and n <= 0xffffffff and n % 1 == 0, "word out of range")
actlist[pos] = n
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.
local map_archdef = { sp = "r1" } -- Ext. register name -> int. name.
local map_type = {} -- Type name -> { ctype, reg }
local ctypenum = 0 -- Type number (for Dt... macros).
-- Reverse defines for registers.
function _M.revdef(s)
if s == "r1" then return "sp" end
return s
end
local map_cond = {
lt = 0, gt = 1, eq = 2, so = 3,
ge = 4, le = 5, ne = 6, ns = 7,
}
------------------------------------------------------------------------------
-- Template strings for PPC instructions.
local map_op = {
tdi_3 = "08000000ARI",
twi_3 = "0c000000ARI",
mulli_3 = "1c000000RRI",
subfic_3 = "20000000RRI",
cmplwi_3 = "28000000XRU",
cmplwi_2 = "28000000-RU",
cmpldi_3 = "28200000XRU",
cmpldi_2 = "28200000-RU",
cmpwi_3 = "2c000000XRI",
cmpwi_2 = "2c000000-RI",
cmpdi_3 = "2c200000XRI",
cmpdi_2 = "2c200000-RI",
addic_3 = "30000000RRI",
["addic._3"] = "34000000RRI",
addi_3 = "38000000RR0I",
li_2 = "38000000RI",
la_2 = "38000000RD",
addis_3 = "3c000000RR0I",
lis_2 = "3c000000RI",
lus_2 = "3c000000RU",
bc_3 = "40000000AAK",
bcl_3 = "40000001AAK",
bdnz_1 = "42000000K",
bdz_1 = "42400000K",
sc_0 = "44000000",
b_1 = "48000000J",
bl_1 = "48000001J",
rlwimi_5 = "50000000RR~AAA.",
rlwinm_5 = "54000000RR~AAA.",
rlwnm_5 = "5c000000RR~RAA.",
ori_3 = "60000000RR~U",
nop_0 = "60000000",
oris_3 = "64000000RR~U",
xori_3 = "68000000RR~U",
xoris_3 = "6c000000RR~U",
["andi._3"] = "70000000RR~U",
["andis._3"] = "74000000RR~U",
lwz_2 = "80000000RD",
lwzu_2 = "84000000RD",
lbz_2 = "88000000RD",
lbzu_2 = "8c000000RD",
stw_2 = "90000000RD",
stwu_2 = "94000000RD",
stb_2 = "98000000RD",
stbu_2 = "9c000000RD",
lhz_2 = "a0000000RD",
lhzu_2 = "a4000000RD",
lha_2 = "a8000000RD",
lhau_2 = "ac000000RD",
sth_2 = "b0000000RD",
sthu_2 = "b4000000RD",
lmw_2 = "b8000000RD",
stmw_2 = "bc000000RD",
lfs_2 = "c0000000FD",
lfsu_2 = "c4000000FD",
lfd_2 = "c8000000FD",
lfdu_2 = "cc000000FD",
stfs_2 = "d0000000FD",
stfsu_2 = "d4000000FD",
stfd_2 = "d8000000FD",
stfdu_2 = "dc000000FD",
ld_2 = "e8000000RD", -- NYI: displacement must be divisible by 4.
ldu_2 = "e8000001RD",
lwa_2 = "e8000002RD",
std_2 = "f8000000RD",
stdu_2 = "f8000001RD",
-- Primary opcode 19:
mcrf_2 = "4c000000XX",
isync_0 = "4c00012c",
crnor_3 = "4c000042CCC",
crnot_2 = "4c000042CC=",
crandc_3 = "4c000102CCC",
crxor_3 = "4c000182CCC",
crclr_1 = "4c000182C==",
crnand_3 = "4c0001c2CCC",
crand_3 = "4c000202CCC",
creqv_3 = "4c000242CCC",
crset_1 = "4c000242C==",
crorc_3 = "4c000342CCC",
cror_3 = "4c000382CCC",
crmove_2 = "4c000382CC=",
bclr_2 = "4c000020AA",
bclrl_2 = "4c000021AA",
bcctr_2 = "4c000420AA",
bcctrl_2 = "4c000421AA",
blr_0 = "4e800020",
blrl_0 = "4e800021",
bctr_0 = "4e800420",
bctrl_0 = "4e800421",
-- Primary opcode 31:
cmpw_3 = "7c000000XRR",
cmpw_2 = "7c000000-RR",
cmpd_3 = "7c200000XRR",
cmpd_2 = "7c200000-RR",
tw_3 = "7c000008ARR",
subfc_3 = "7c000010RRR.",
subc_3 = "7c000010RRR~.",
mulhdu_3 = "7c000012RRR.",
addc_3 = "7c000014RRR.",
mulhwu_3 = "7c000016RRR.",
isel_4 = "7c00001eRRRC",
isellt_3 = "7c00001eRRR",
iselgt_3 = "7c00005eRRR",
iseleq_3 = "7c00009eRRR",
mfcr_1 = "7c000026R",
mtcrf_2 = "7c000120GR",
-- NYI: mtocrf, mfocrf
lwarx_3 = "7c000028RR0R",
ldx_3 = "7c00002aRR0R",
lwzx_3 = "7c00002eRR0R",
slw_3 = "7c000030RR~R.",
cntlzw_2 = "7c000034RR~",
sld_3 = "7c000036RR~R.",
and_3 = "7c000038RR~R.",
cmplw_3 = "7c000040XRR",
cmplw_2 = "7c000040-RR",
cmpld_3 = "7c200040XRR",
cmpld_2 = "7c200040-RR",
subf_3 = "7c000050RRR.",
sub_3 = "7c000050RRR~.",
ldux_3 = "7c00006aRR0R",
dcbst_2 = "7c00006c-RR",
lwzux_3 = "7c00006eRR0R",
cntlzd_2 = "7c000074RR~",
andc_3 = "7c000078RR~R.",
td_3 = "7c000088ARR",
mulhd_3 = "7c000092RRR.",
mulhw_3 = "7c000096RRR.",
ldarx_3 = "7c0000a8RR0R",
dcbf_2 = "7c0000ac-RR",
lbzx_3 = "7c0000aeRR0R",
neg_2 = "7c0000d0RR.",
lbzux_3 = "7c0000eeRR0R",
popcntb_2 = "7c0000f4RR~",
not_2 = "7c0000f8RR~%.",
nor_3 = "7c0000f8RR~R.",
subfe_3 = "7c000110RRR.",
sube_3 = "7c000110RRR~.",
adde_3 = "7c000114RRR.",
stdx_3 = "7c00012aRR0R",
stwcx_3 = "7c00012cRR0R.",
stwx_3 = "7c00012eRR0R",
prtyw_2 = "7c000134RR~",
stdux_3 = "7c00016aRR0R",
stwux_3 = "7c00016eRR0R",
prtyd_2 = "7c000174RR~",
subfze_2 = "7c000190RR.",
addze_2 = "7c000194RR.",
stdcx_3 = "7c0001acRR0R.",
stbx_3 = "7c0001aeRR0R",
subfme_2 = "7c0001d0RR.",
mulld_3 = "7c0001d2RRR.",
addme_2 = "7c0001d4RR.",
mullw_3 = "7c0001d6RRR.",
dcbtst_2 = "7c0001ec-RR",
stbux_3 = "7c0001eeRR0R",
add_3 = "7c000214RRR.",
dcbt_2 = "7c00022c-RR",
lhzx_3 = "7c00022eRR0R",
eqv_3 = "7c000238RR~R.",
eciwx_3 = "7c00026cRR0R",
lhzux_3 = "7c00026eRR0R",
xor_3 = "7c000278RR~R.",
mfspefscr_1 = "7c0082a6R",
mfxer_1 = "7c0102a6R",
mflr_1 = "7c0802a6R",
mfctr_1 = "7c0902a6R",
lwax_3 = "7c0002aaRR0R",
lhax_3 = "7c0002aeRR0R",
mftb_1 = "7c0c42e6R",
mftbu_1 = "7c0d42e6R",
lwaux_3 = "7c0002eaRR0R",
lhaux_3 = "7c0002eeRR0R",
sthx_3 = "7c00032eRR0R",
orc_3 = "7c000338RR~R.",
ecowx_3 = "7c00036cRR0R",
sthux_3 = "7c00036eRR0R",
or_3 = "7c000378RR~R.",
mr_2 = "7c000378RR~%.",
divdu_3 = "7c000392RRR.",
divwu_3 = "7c000396RRR.",
mtspefscr_1 = "7c0083a6R",
mtxer_1 = "7c0103a6R",
mtlr_1 = "7c0803a6R",
mtctr_1 = "7c0903a6R",
dcbi_2 = "7c0003ac-RR",
nand_3 = "7c0003b8RR~R.",
divd_3 = "7c0003d2RRR.",
divw_3 = "7c0003d6RRR.",
cmpb_3 = "7c0003f8RR~R.",
mcrxr_1 = "7c000400X",
subfco_3 = "7c000410RRR.",
subco_3 = "7c000410RRR~.",
addco_3 = "7c000414RRR.",
ldbrx_3 = "7c000428RR0R",
lswx_3 = "7c00042aRR0R",
lwbrx_3 = "7c00042cRR0R",
lfsx_3 = "7c00042eFR0R",
srw_3 = "7c000430RR~R.",
srd_3 = "7c000436RR~R.",
subfo_3 = "7c000450RRR.",
subo_3 = "7c000450RRR~.",
lfsux_3 = "7c00046eFR0R",
lswi_3 = "7c0004aaRR0A",
sync_0 = "7c0004ac",
lwsync_0 = "7c2004ac",
ptesync_0 = "7c4004ac",
lfdx_3 = "7c0004aeFR0R",
nego_2 = "7c0004d0RR.",
lfdux_3 = "7c0004eeFR0R",
subfeo_3 = "7c000510RRR.",
subeo_3 = "7c000510RRR~.",
addeo_3 = "7c000514RRR.",
stdbrx_3 = "7c000528RR0R",
stswx_3 = "7c00052aRR0R",
stwbrx_3 = "7c00052cRR0R",
stfsx_3 = "7c00052eFR0R",
stfsux_3 = "7c00056eFR0R",
subfzeo_2 = "7c000590RR.",
addzeo_2 = "7c000594RR.",
stswi_3 = "7c0005aaRR0A",
stfdx_3 = "7c0005aeFR0R",
subfmeo_2 = "7c0005d0RR.",
mulldo_3 = "7c0005d2RRR.",
addmeo_2 = "7c0005d4RR.",
mullwo_3 = "7c0005d6RRR.",
dcba_2 = "7c0005ec-RR",
stfdux_3 = "7c0005eeFR0R",
addo_3 = "7c000614RRR.",
lhbrx_3 = "7c00062cRR0R",
sraw_3 = "7c000630RR~R.",
srad_3 = "7c000634RR~R.",
srawi_3 = "7c000670RR~A.",
eieio_0 = "7c0006ac",
lfiwax_3 = "7c0006aeFR0R",
sthbrx_3 = "7c00072cRR0R",
extsh_2 = "7c000734RR~.",
extsb_2 = "7c000774RR~.",
divduo_3 = "7c000792RRR.",
divwou_3 = "7c000796RRR.",
icbi_2 = "7c0007ac-RR",
stfiwx_3 = "7c0007aeFR0R",
extsw_2 = "7c0007b4RR~.",
divdo_3 = "7c0007d2RRR.",
divwo_3 = "7c0007d6RRR.",
dcbz_2 = "7c0007ec-RR",
-- Primary opcode 59:
fdivs_3 = "ec000024FFF.",
fsubs_3 = "ec000028FFF.",
fadds_3 = "ec00002aFFF.",
fsqrts_2 = "ec00002cF-F.",
fres_2 = "ec000030F-F.",
fmuls_3 = "ec000032FF-F.",
frsqrtes_2 = "ec000034F-F.",
fmsubs_4 = "ec000038FFFF~.",
fmadds_4 = "ec00003aFFFF~.",
fnmsubs_4 = "ec00003cFFFF~.",
fnmadds_4 = "ec00003eFFFF~.",
-- Primary opcode 63:
fdiv_3 = "fc000024FFF.",
fsub_3 = "fc000028FFF.",
fadd_3 = "fc00002aFFF.",
fsqrt_2 = "fc00002cF-F.",
fsel_4 = "fc00002eFFFF~.",
fre_2 = "fc000030F-F.",
fmul_3 = "fc000032FF-F.",
frsqrte_2 = "fc000034F-F.",
fmsub_4 = "fc000038FFFF~.",
fmadd_4 = "fc00003aFFFF~.",
fnmsub_4 = "fc00003cFFFF~.",
fnmadd_4 = "fc00003eFFFF~.",
fcmpu_3 = "fc000000XFF",
fcpsgn_3 = "fc000010FFF.",
fcmpo_3 = "fc000040XFF",
mtfsb1_1 = "fc00004cA",
fneg_2 = "fc000050F-F.",
mcrfs_2 = "fc000080XX",
mtfsb0_1 = "fc00008cA",
fmr_2 = "fc000090F-F.",
frsp_2 = "fc000018F-F.",
fctiw_2 = "fc00001cF-F.",
fctiwz_2 = "fc00001eF-F.",
mtfsfi_2 = "fc00010cAA", -- NYI: upshift.
fnabs_2 = "fc000110F-F.",
fabs_2 = "fc000210F-F.",
frin_2 = "fc000310F-F.",
friz_2 = "fc000350F-F.",
frip_2 = "fc000390F-F.",
frim_2 = "fc0003d0F-F.",
mffs_1 = "fc00048eF.",
-- NYI: mtfsf, mtfsb0, mtfsb1.
fctid_2 = "fc00065cF-F.",
fctidz_2 = "fc00065eF-F.",
fcfid_2 = "fc00069cF-F.",
-- Primary opcode 4, SPE APU extension:
evaddw_3 = "10000200RRR",
evaddiw_3 = "10000202RAR~",
evsubw_3 = "10000204RRR~",
evsubiw_3 = "10000206RAR~",
evabs_2 = "10000208RR",
evneg_2 = "10000209RR",
evextsb_2 = "1000020aRR",
evextsh_2 = "1000020bRR",
evrndw_2 = "1000020cRR",
evcntlzw_2 = "1000020dRR",
evcntlsw_2 = "1000020eRR",
brinc_3 = "1000020fRRR",
evand_3 = "10000211RRR",
evandc_3 = "10000212RRR",
evxor_3 = "10000216RRR",
evor_3 = "10000217RRR",
evmr_2 = "10000217RR=",
evnor_3 = "10000218RRR",
evnot_2 = "10000218RR=",
eveqv_3 = "10000219RRR",
evorc_3 = "1000021bRRR",
evnand_3 = "1000021eRRR",
evsrwu_3 = "10000220RRR",
evsrws_3 = "10000221RRR",
evsrwiu_3 = "10000222RRA",
evsrwis_3 = "10000223RRA",
evslw_3 = "10000224RRR",
evslwi_3 = "10000226RRA",
evrlw_3 = "10000228RRR",
evsplati_2 = "10000229RS",
evrlwi_3 = "1000022aRRA",
evsplatfi_2 = "1000022bRS",
evmergehi_3 = "1000022cRRR",
evmergelo_3 = "1000022dRRR",
evcmpgtu_3 = "10000230XRR",
evcmpgtu_2 = "10000230-RR",
evcmpgts_3 = "10000231XRR",
evcmpgts_2 = "10000231-RR",
evcmpltu_3 = "10000232XRR",
evcmpltu_2 = "10000232-RR",
evcmplts_3 = "10000233XRR",
evcmplts_2 = "10000233-RR",
evcmpeq_3 = "10000234XRR",
evcmpeq_2 = "10000234-RR",
evsel_4 = "10000278RRRW",
evsel_3 = "10000278RRR",
evfsadd_3 = "10000280RRR",
evfssub_3 = "10000281RRR",
evfsabs_2 = "10000284RR",
evfsnabs_2 = "10000285RR",
evfsneg_2 = "10000286RR",
evfsmul_3 = "10000288RRR",
evfsdiv_3 = "10000289RRR",
evfscmpgt_3 = "1000028cXRR",
evfscmpgt_2 = "1000028c-RR",
evfscmplt_3 = "1000028dXRR",
evfscmplt_2 = "1000028d-RR",
evfscmpeq_3 = "1000028eXRR",
evfscmpeq_2 = "1000028e-RR",
evfscfui_2 = "10000290R-R",
evfscfsi_2 = "10000291R-R",
evfscfuf_2 = "10000292R-R",
evfscfsf_2 = "10000293R-R",
evfsctui_2 = "10000294R-R",
evfsctsi_2 = "10000295R-R",
evfsctuf_2 = "10000296R-R",
evfsctsf_2 = "10000297R-R",
evfsctuiz_2 = "10000298R-R",
evfsctsiz_2 = "1000029aR-R",
evfststgt_3 = "1000029cXRR",
evfststgt_2 = "1000029c-RR",
evfststlt_3 = "1000029dXRR",
evfststlt_2 = "1000029d-RR",
evfststeq_3 = "1000029eXRR",
evfststeq_2 = "1000029e-RR",
efsadd_3 = "100002c0RRR",
efssub_3 = "100002c1RRR",
efsabs_2 = "100002c4RR",
efsnabs_2 = "100002c5RR",
efsneg_2 = "100002c6RR",
efsmul_3 = "100002c8RRR",
efsdiv_3 = "100002c9RRR",
efscmpgt_3 = "100002ccXRR",
efscmpgt_2 = "100002cc-RR",
efscmplt_3 = "100002cdXRR",
efscmplt_2 = "100002cd-RR",
efscmpeq_3 = "100002ceXRR",
efscmpeq_2 = "100002ce-RR",
efscfd_2 = "100002cfR-R",
efscfui_2 = "100002d0R-R",
efscfsi_2 = "100002d1R-R",
efscfuf_2 = "100002d2R-R",
efscfsf_2 = "100002d3R-R",
efsctui_2 = "100002d4R-R",
efsctsi_2 = "100002d5R-R",
efsctuf_2 = "100002d6R-R",
efsctsf_2 = "100002d7R-R",
efsctuiz_2 = "100002d8R-R",
efsctsiz_2 = "100002daR-R",
efststgt_3 = "100002dcXRR",
efststgt_2 = "100002dc-RR",
efststlt_3 = "100002ddXRR",
efststlt_2 = "100002dd-RR",
efststeq_3 = "100002deXRR",
efststeq_2 = "100002de-RR",
efdadd_3 = "100002e0RRR",
efdsub_3 = "100002e1RRR",
efdcfuid_2 = "100002e2R-R",
efdcfsid_2 = "100002e3R-R",
efdabs_2 = "100002e4RR",
efdnabs_2 = "100002e5RR",
efdneg_2 = "100002e6RR",
efdmul_3 = "100002e8RRR",
efddiv_3 = "100002e9RRR",
efdctuidz_2 = "100002eaR-R",
efdctsidz_2 = "100002ebR-R",
efdcmpgt_3 = "100002ecXRR",
efdcmpgt_2 = "100002ec-RR",
efdcmplt_3 = "100002edXRR",
efdcmplt_2 = "100002ed-RR",
efdcmpeq_3 = "100002eeXRR",
efdcmpeq_2 = "100002ee-RR",
efdcfs_2 = "100002efR-R",
efdcfui_2 = "100002f0R-R",
efdcfsi_2 = "100002f1R-R",
efdcfuf_2 = "100002f2R-R",
efdcfsf_2 = "100002f3R-R",
efdctui_2 = "100002f4R-R",
efdctsi_2 = "100002f5R-R",
efdctuf_2 = "100002f6R-R",
efdctsf_2 = "100002f7R-R",
efdctuiz_2 = "100002f8R-R",
efdctsiz_2 = "100002faR-R",
efdtstgt_3 = "100002fcXRR",
efdtstgt_2 = "100002fc-RR",
efdtstlt_3 = "100002fdXRR",
efdtstlt_2 = "100002fd-RR",
efdtsteq_3 = "100002feXRR",
efdtsteq_2 = "100002fe-RR",
evlddx_3 = "10000300RR0R",
evldd_2 = "10000301R8",
evldwx_3 = "10000302RR0R",
evldw_2 = "10000303R8",
evldhx_3 = "10000304RR0R",
evldh_2 = "10000305R8",
evlwhex_3 = "10000310RR0R",
evlwhe_2 = "10000311R4",
evlwhoux_3 = "10000314RR0R",
evlwhou_2 = "10000315R4",
evlwhosx_3 = "10000316RR0R",
evlwhos_2 = "10000317R4",
evstddx_3 = "10000320RR0R",
evstdd_2 = "10000321R8",
evstdwx_3 = "10000322RR0R",
evstdw_2 = "10000323R8",
evstdhx_3 = "10000324RR0R",
evstdh_2 = "10000325R8",
evstwhex_3 = "10000330RR0R",
evstwhe_2 = "10000331R4",
evstwhox_3 = "10000334RR0R",
evstwho_2 = "10000335R4",
evstwwex_3 = "10000338RR0R",
evstwwe_2 = "10000339R4",
evstwwox_3 = "1000033cRR0R",
evstwwo_2 = "1000033dR4",
evmhessf_3 = "10000403RRR",
evmhossf_3 = "10000407RRR",
evmheumi_3 = "10000408RRR",
evmhesmi_3 = "10000409RRR",
evmhesmf_3 = "1000040bRRR",
evmhoumi_3 = "1000040cRRR",
evmhosmi_3 = "1000040dRRR",
evmhosmf_3 = "1000040fRRR",
evmhessfa_3 = "10000423RRR",
evmhossfa_3 = "10000427RRR",
evmheumia_3 = "10000428RRR",
evmhesmia_3 = "10000429RRR",
evmhesmfa_3 = "1000042bRRR",
evmhoumia_3 = "1000042cRRR",
evmhosmia_3 = "1000042dRRR",
evmhosmfa_3 = "1000042fRRR",
evmwhssf_3 = "10000447RRR",
evmwlumi_3 = "10000448RRR",
evmwhumi_3 = "1000044cRRR",
evmwhsmi_3 = "1000044dRRR",
evmwhsmf_3 = "1000044fRRR",
evmwssf_3 = "10000453RRR",
evmwumi_3 = "10000458RRR",
evmwsmi_3 = "10000459RRR",
evmwsmf_3 = "1000045bRRR",
evmwhssfa_3 = "10000467RRR",
evmwlumia_3 = "10000468RRR",
evmwhumia_3 = "1000046cRRR",
evmwhsmia_3 = "1000046dRRR",
evmwhsmfa_3 = "1000046fRRR",
evmwssfa_3 = "10000473RRR",
evmwumia_3 = "10000478RRR",
evmwsmia_3 = "10000479RRR",
evmwsmfa_3 = "1000047bRRR",
evmra_2 = "100004c4RR",
evdivws_3 = "100004c6RRR",
evdivwu_3 = "100004c7RRR",
evmwssfaa_3 = "10000553RRR",
evmwumiaa_3 = "10000558RRR",
evmwsmiaa_3 = "10000559RRR",
evmwsmfaa_3 = "1000055bRRR",
evmwssfan_3 = "100005d3RRR",
evmwumian_3 = "100005d8RRR",
evmwsmian_3 = "100005d9RRR",
evmwsmfan_3 = "100005dbRRR",
evmergehilo_3 = "1000022eRRR",
evmergelohi_3 = "1000022fRRR",
evlhhesplatx_3 = "10000308RR0R",
evlhhesplat_2 = "10000309R2",
evlhhousplatx_3 = "1000030cRR0R",
evlhhousplat_2 = "1000030dR2",
evlhhossplatx_3 = "1000030eRR0R",
evlhhossplat_2 = "1000030fR2",
evlwwsplatx_3 = "10000318RR0R",
evlwwsplat_2 = "10000319R4",
evlwhsplatx_3 = "1000031cRR0R",
evlwhsplat_2 = "1000031dR4",
evaddusiaaw_2 = "100004c0RR",
evaddssiaaw_2 = "100004c1RR",
evsubfusiaaw_2 = "100004c2RR",
evsubfssiaaw_2 = "100004c3RR",
evaddumiaaw_2 = "100004c8RR",
evaddsmiaaw_2 = "100004c9RR",
evsubfumiaaw_2 = "100004caRR",
evsubfsmiaaw_2 = "100004cbRR",
evmheusiaaw_3 = "10000500RRR",
evmhessiaaw_3 = "10000501RRR",
evmhessfaaw_3 = "10000503RRR",
evmhousiaaw_3 = "10000504RRR",
evmhossiaaw_3 = "10000505RRR",
evmhossfaaw_3 = "10000507RRR",
evmheumiaaw_3 = "10000508RRR",
evmhesmiaaw_3 = "10000509RRR",
evmhesmfaaw_3 = "1000050bRRR",
evmhoumiaaw_3 = "1000050cRRR",
evmhosmiaaw_3 = "1000050dRRR",
evmhosmfaaw_3 = "1000050fRRR",
evmhegumiaa_3 = "10000528RRR",
evmhegsmiaa_3 = "10000529RRR",
evmhegsmfaa_3 = "1000052bRRR",
evmhogumiaa_3 = "1000052cRRR",
evmhogsmiaa_3 = "1000052dRRR",
evmhogsmfaa_3 = "1000052fRRR",
evmwlusiaaw_3 = "10000540RRR",
evmwlssiaaw_3 = "10000541RRR",
evmwlumiaaw_3 = "10000548RRR",
evmwlsmiaaw_3 = "10000549RRR",
evmheusianw_3 = "10000580RRR",
evmhessianw_3 = "10000581RRR",
evmhessfanw_3 = "10000583RRR",
evmhousianw_3 = "10000584RRR",
evmhossianw_3 = "10000585RRR",
evmhossfanw_3 = "10000587RRR",
evmheumianw_3 = "10000588RRR",
evmhesmianw_3 = "10000589RRR",
evmhesmfanw_3 = "1000058bRRR",
evmhoumianw_3 = "1000058cRRR",
evmhosmianw_3 = "1000058dRRR",
evmhosmfanw_3 = "1000058fRRR",
evmhegumian_3 = "100005a8RRR",
evmhegsmian_3 = "100005a9RRR",
evmhegsmfan_3 = "100005abRRR",
evmhogumian_3 = "100005acRRR",
evmhogsmian_3 = "100005adRRR",
evmhogsmfan_3 = "100005afRRR",
evmwlusianw_3 = "100005c0RRR",
evmwlssianw_3 = "100005c1RRR",
evmwlumianw_3 = "100005c8RRR",
evmwlsmianw_3 = "100005c9RRR",
-- NYI: some 64 bit PowerPC and Book E instructions:
-- rldicl, rldicr, rldic, rldimi, rldcl, rldcr, sradi, 64 bit ext. add/sub,
-- extended addressing branches, cache management, loads and stores
}
-- Add mnemonics for "." variants.
do
local t = {}
for k,v in pairs(map_op) do
if sub(v, -1) == "." then
local v2 = sub(v, 1, 7)..char(byte(v, 8)+1)..sub(v, 9, -2)
t[sub(k, 1, -3).."."..sub(k, -2)] = v2
end
end
for k,v in pairs(t) do
map_op[k] = v
end
end
-- Add more branch mnemonics.
for cond,c in pairs(map_cond) do
local b1 = "b"..cond
local c1 = (c%4)*0x00010000 + (c < 4 and 0x01000000 or 0)
-- bX[l]
map_op[b1.."_1"] = tohex(0x40800000 + c1).."K"
map_op[b1.."y_1"] = tohex(0x40a00000 + c1).."K"
map_op[b1.."l_1"] = tohex(0x40800001 + c1).."K"
map_op[b1.."_2"] = tohex(0x40800000 + c1).."-XK"
map_op[b1.."y_2"] = tohex(0x40a00000 + c1).."-XK"
map_op[b1.."l_2"] = tohex(0x40800001 + c1).."-XK"
-- bXlr[l]
map_op[b1.."lr_0"] = tohex(0x4c800020 + c1)
map_op[b1.."lrl_0"] = tohex(0x4c800021 + c1)
map_op[b1.."ctr_0"] = tohex(0x4c800420 + c1)
map_op[b1.."ctrl_0"] = tohex(0x4c800421 + c1)
-- bXctr[l]
map_op[b1.."lr_1"] = tohex(0x4c800020 + c1).."-X"
map_op[b1.."lrl_1"] = tohex(0x4c800021 + c1).."-X"
map_op[b1.."ctr_1"] = tohex(0x4c800420 + c1).."-X"
map_op[b1.."ctrl_1"] = tohex(0x4c800421 + c1).."-X"
end
------------------------------------------------------------------------------
local function parse_gpr(expr)
local tname, ovreg = match(expr, "^([%w_]+):(r[1-3]?[0-9])$")
local tp = map_type[tname or expr]
if tp then
local reg = ovreg or tp.reg
if not reg then
werror("type `"..(tname or expr).."' needs a register override")
end
expr = reg
end
local r = match(expr, "^r([1-3]?[0-9])$")
if r then
r = tonumber(r)
if r <= 31 then return r, tp end
end
werror("bad register name `"..expr.."'")
end
local function parse_fpr(expr)
local r = match(expr, "^f([1-3]?[0-9])$")
if r then
r = tonumber(r)
if r <= 31 then return r end
end
werror("bad register name `"..expr.."'")
end
local function parse_cr(expr)
local r = match(expr, "^cr([0-7])$")
if r then return tonumber(r) end
werror("bad condition register name `"..expr.."'")
end
local function parse_cond(expr)
local r, cond = match(expr, "^4%*cr([0-7])%+(%w%w)$")
if r then
r = tonumber(r)
local c = map_cond[cond]
if c and c < 4 then return r*4+c end
end
werror("bad condition bit name `"..expr.."'")
end
local function parse_imm(imm, bits, shift, scale, signed)
local n = tonumber(imm)
if n then
if n % 2^scale == 0 then
n = n / 2^scale
if signed then
if n >= 0 then
if n < 2^(bits-1) then return n*2^shift end
else
if n >= -(2^(bits-1))-1 then return (n+2^bits)*2^shift end
end
else
if n >= 0 and n <= 2^bits-1 then return n*2^shift end
end
end
werror("out of range immediate `"..imm.."'")
elseif match(imm, "^r([1-3]?[0-9])$") or
match(imm, "^([%w_]+):(r[1-3]?[0-9])$") then
werror("expected immediate operand, got register")
else
waction("IMM", (signed and 32768 or 0)+scale*1024+bits*32+shift, imm)
return 0
end
end
local function parse_disp(disp)
local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
if imm then
local r = parse_gpr(reg)
if r == 0 then werror("cannot use r0 in displacement") end
return r*65536 + parse_imm(imm, 16, 0, 0, true)
end
local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
if reg and tailr ~= "" then
local r, tp = parse_gpr(reg)
if r == 0 then werror("cannot use r0 in displacement") end
if tp then
waction("IMM", 32768+16*32, format(tp.ctypefmt, tailr))
return r*65536
end
end
werror("bad displacement `"..disp.."'")
end
local function parse_u5disp(disp, scale)
local imm, reg = match(disp, "^(.*)%(([%w_:]+)%)$")
if imm then
local r = parse_gpr(reg)
if r == 0 then werror("cannot use r0 in displacement") end
return r*65536 + parse_imm(imm, 5, 11, scale, false)
end
local reg, tailr = match(disp, "^([%w_:]+)%s*(.*)$")
if reg and tailr ~= "" then
local r, tp = parse_gpr(reg)
if r == 0 then werror("cannot use r0 in displacement") end
if tp then
waction("IMM", scale*1024+5*32+11, format(tp.ctypefmt, tailr))
return r*65536
end
end
werror("bad displacement `"..disp.."'")
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
------------------------------------------------------------------------------
-- Handle opcodes defined with template strings.
map_op[".template__"] = function(params, template, nparams)
if not params then return sub(template, 9) end
local op = tonumber(sub(template, 1, 8), 16)
local n, rs = 1, 26
-- Limit number of section buffer positions used by a single dasm_put().
-- A single opcode needs a maximum of 3 positions (rlwinm).
if secpos+3 > maxsecpos then wflush() end
local pos = wpos()
-- Process each character.
for p in gmatch(sub(template, 9), ".") do
if p == "R" then
rs = rs - 5; op = op + parse_gpr(params[n]) * 2^rs; n = n + 1
elseif p == "F" then
rs = rs - 5; op = op + parse_fpr(params[n]) * 2^rs; n = n + 1
elseif p == "A" then
rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, false); n = n + 1
elseif p == "S" then
rs = rs - 5; op = op + parse_imm(params[n], 5, rs, 0, true); n = n + 1
elseif p == "I" then
op = op + parse_imm(params[n], 16, 0, 0, true); n = n + 1
elseif p == "U" then
op = op + parse_imm(params[n], 16, 0, 0, false); n = n + 1
elseif p == "D" then
op = op + parse_disp(params[n]); n = n + 1
elseif p == "2" then
op = op + parse_u5disp(params[n], 1); n = n + 1
elseif p == "4" then
op = op + parse_u5disp(params[n], 2); n = n + 1
elseif p == "8" then
op = op + parse_u5disp(params[n], 3); n = n + 1
elseif p == "C" then
rs = rs - 5; op = op + parse_cond(params[n]) * 2^rs; n = n + 1
elseif p == "X" then
rs = rs - 5; op = op + parse_cr(params[n]) * 2^(rs+2); n = n + 1
elseif p == "W" then
op = op + parse_cr(params[n]); n = n + 1
elseif p == "G" then
op = op + parse_imm(params[n], 8, 12, 0, false); n = n + 1
elseif p == "J" or p == "K" then
local mode, n, s = parse_label(params[n], false)
if p == "K" then n = n + 2048 end
waction("REL_"..mode, n, s, 1)
n = n + 1
elseif p == "0" then
local mm = 2^rs
local t = op % mm
if ((op - t) / mm) % 32 == 0 then werror("cannot use r0") end
elseif p == "=" or p == "%" then
local mm = 2^(rs + (p == "%" and 5 or 0))
local t = ((op - op % mm) / mm) % 32
rs = rs - 5
op = op + t * 2^rs
elseif p == "~" then
local mm = 2^rs
local t1l = op % mm
local t1h = (op - t1l) / mm
local t2l = t1h % 32
local t2h = (t1h - t2l) / 32
local t3l = t2h % 32
op = ((t2h - t3l + t2l)*32 + t3l)*mm + t1l
elseif p == "-" then
rs = rs - 5
elseif p == "." then
-- Ignored.
else
assert(false)
end
end
wputpos(pos, op)
end
------------------------------------------------------------------------------
-- 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
------------------------------------------------------------------------------