717 lines
25 KiB
Lua
717 lines
25 KiB
Lua
|
|
local function loadutf8table(fn)
|
|
local tt = {}
|
|
for l in io.lines(fn) do if l~="" then
|
|
local c, d = l:match("^([^ ]+) (.+)$")
|
|
local t = {}; for v in d:gmatch("[^ ]+") do table.insert(t, tonumber(v, 16)) end;
|
|
tt[c] = t
|
|
end end
|
|
return tt
|
|
end
|
|
local utf8table = loadutf8table((RelPath or "./").."utf8table.txt")
|
|
|
|
local function trim(s) return s:gsub("^ +", ""):gsub(" +$", "").."" end
|
|
local function getutf8len(c)
|
|
local d = c:byte()
|
|
if bit.band(d, 0xE0)==0xC0 then return 2
|
|
elseif bit.band(d, 0xF0)==0xE0 then return 3
|
|
elseif bit.band(d, 0xF8)==0xF0 then return 4
|
|
else error("invalid utf8 first byte: "..string.format("%02X", d)) end
|
|
end
|
|
local function validWordsFromInstrs(instrs)
|
|
local words = {}
|
|
for mnem, _ in pairs(instrs) do
|
|
for word in mnem:gmatch("[^ ]+") do
|
|
words[word] = true
|
|
end
|
|
end
|
|
return words
|
|
end
|
|
local function lobyte(n) return n%256 end
|
|
local function hibyte(n) return math.floor(n/256) end
|
|
local function decodeNumber(n)
|
|
n = trim(n)
|
|
local sign = 1; if n:sub(1, 1)=="-" then sign = -1; n = n:sub(2, #n); end;
|
|
if n:sub(1, 1)=="$" then return sign*(tonumber(n:sub(2, #n ), 16) or error("invalid hex number "..n)), math.ceil((#n-1)/2)
|
|
elseif n:sub(1, 2)=="0x" then return sign*(tonumber(n:sub(3, #n ), 16) or error("invalid hex number "..n)), math.ceil((#n-2)/2)
|
|
elseif n:sub(#n, #n)=="h" and n:find("^[0-9a-fA-F]+h$") then return sign*(tonumber(n:sub(1, #n-1), 16) or error("invalid hex number "..n)), math.ceil((#n-1)/2)
|
|
elseif n:sub(1, 2)=="0b" then return sign*(tonumber(n:sub(3, #n ), 2) or error("invalid binary number "..n)), math.ceil((#n-2)/8)
|
|
elseif n:sub(#n, #n)=="b" and n:find("^[01]+b$") then return sign*(tonumber(n:sub(1, #n-1), 2) or error("invalid binary number "..n)), math.ceil((#n-1)/8)
|
|
elseif n:sub(1, 3)=="lo(" and n:sub(#n, #n)==")" then return lobyte(decodeNumber(n:sub(4, #n-1))), 1
|
|
elseif n:sub(1, 3)=="hi(" and n:sub(#n, #n)==")" then return hibyte(decodeNumber(n:sub(4, #n-1))), 1
|
|
elseif n:find("^[0-9]+$") then
|
|
local v = sign*(tonumber(n) or error("invalid decimal number "..n))
|
|
if v>=-128 and v<=255 then return v, 1
|
|
elseif v>=-32768 and v<=65535 then return v, 2
|
|
else error("out-of-range number "..v) end
|
|
else
|
|
return nil
|
|
end
|
|
end
|
|
local function mnemFromLine(line, instrs, validWords)
|
|
local imms = {}
|
|
local function addNum(n)
|
|
n = trim(n)
|
|
local val, len = decodeNumber(n)
|
|
assert(val and len, "invalid number "..n)
|
|
local linei8 = line:gsub(n, "imm8", 1, true):lower()
|
|
local linei16 = line:gsub(n, "imm16", 1, true):lower()
|
|
if len==1 and (not instrs[linei8]) and instrs[linei16] then len = 2 end
|
|
table.insert(imms, { val = val, len = len } )
|
|
return " imm"..(len*8).." "
|
|
end
|
|
local function addLabel(n)
|
|
n = trim(n)
|
|
local len = 2
|
|
local linei8 = line:gsub(n, "imm8", 1, true):lower()
|
|
if instrs[linei8] then len = 1 end
|
|
table.insert(imms, { label = n, len = len } )
|
|
return " imm"..(len*8).." "
|
|
end
|
|
|
|
local mnem = " "..line:gsub(" ", " ").." "
|
|
mnem = mnem:gsub("%- *", " %+%-")
|
|
mnem = mnem:gsub("([%*%+])", " %1 ")
|
|
mnem = mnem:gsub(" %-?%$[0-9a-fA-F]+ " , function(n) return addNum (n) end)
|
|
mnem = mnem:gsub(" %-?0x[0-9a-fA-F]+ " , function(n) return addNum (n) end)
|
|
mnem = mnem:gsub(" %-?0b[01]+ " , function(n) return addNum (n) end)
|
|
mnem = mnem:gsub(" %-?[0-9a-fA-F]+h " , function(n) if not validWords[trim(n)] then return addNum (n) end end)
|
|
mnem = mnem:gsub(" %-?[01]+b " , function(n) if not validWords[trim(n)] then return addNum (n) end end)
|
|
mnem = mnem:gsub(" %-?[0-9]+ " , function(n) if not validWords[trim(n)] then return addNum (n) end end)
|
|
mnem = mnem:gsub(" [a-zA-Z_][a-zA-Z0-9_%.]* ", function(n) if not validWords[trim(n)] then return addLabel(n) end end)
|
|
mnem = trim(mnem):gsub(" +", " "):lower()
|
|
|
|
if not instrs[mnem] then mnem = mnem:gsub("%+ imm", "imm") end
|
|
|
|
return mnem, imms
|
|
end
|
|
local function addByte(state, val, code)
|
|
assert(val>=-128 and val<=255, "invalid byte "..val)
|
|
assert(state.memory[state.curAddr]==nil, "overwriting memory at $"..string.format("%04X", state.curAddr))
|
|
state.memory[state.curAddr] = val%256
|
|
if code then state.codeMap[state.curAddr] = true end
|
|
state.curAddr = state.curAddr + 1
|
|
end
|
|
local function addWord(state, val, code)
|
|
assert(val>=0 and val<=65535, "invalid word "..val)
|
|
addByte(state, math.floor(val/256), code)
|
|
addByte(state, val%256, code)
|
|
end
|
|
local function addSpace(state, len)
|
|
for i = 1, len do
|
|
assert(state.memory[state.curAddr]==nil, "overwriting memory at $"..string.format("%04X", state.curAddr))
|
|
state.memory[state.curAddr] = false
|
|
state.curAddr = state.curAddr + 1
|
|
end
|
|
end
|
|
local function assembleInstruction(line, state, instrs, validWords)
|
|
local mnem, imms = mnemFromLine(line, instrs, validWords)
|
|
local opcode = instrs[mnem] or error("invalid instruction \""..line.."\" (mnem \""..mnem.."\")")
|
|
local writeimms = true
|
|
local padlen = 0
|
|
local isInstr
|
|
if type(opcode)=="function" then
|
|
padlen, writeimms = opcode(imms)
|
|
addSpace(state, padlen)
|
|
elseif opcode>=0 then
|
|
isInstr = true
|
|
addByte(state, opcode, isInstr)
|
|
end
|
|
if writeimms then
|
|
for _, imm in ipairs(imms) do
|
|
if imm.val then
|
|
if imm.len==1 then addByte(state, imm.val, isInstr)
|
|
elseif imm.len==2 then addWord(state, imm.val, isInstr)
|
|
else error("invalid imm len") end
|
|
elseif imm.label then
|
|
table.insert(state.labelReplacements, {
|
|
name = imm.label,
|
|
addr = state.curAddr,
|
|
len = imm.len,
|
|
rel = imm.len==1,
|
|
isCode = isInstr,
|
|
})
|
|
state.curAddr = state.curAddr + imm.len
|
|
else error("invalid imm") end
|
|
end
|
|
end
|
|
end
|
|
local directiveFunctions = {
|
|
fn = function(state, fn) state.fileName = fn end,
|
|
ln = function(state, ln) state.lineNum = tonumber(ln) end,
|
|
org = function(state, addr) state.curAddr = decodeNumber(addr) or error("Invalid origin \""..addr.."\"") end,
|
|
align = function(state, alns) local aln = decodeNumber(alns); if state.curAddr % aln ~= 0 then state.curAddr = state.curAddr + (aln - state.curAddr%aln) end end,
|
|
define = true,
|
|
space = function(state, amts) local amt = decodeNumber(amts); state.curAddr = state.curAddr + amt; end,
|
|
}
|
|
local function postEvaluateExpression(expr, labels)
|
|
|
|
end
|
|
local function assembleCode(code, instrs, uexprs)
|
|
local validWords = validWordsFromInstrs(instrs)
|
|
|
|
local state = {
|
|
lineNum = 0,
|
|
fileName = "",
|
|
curAddr = 0,
|
|
memory = {},
|
|
codeMap = {},
|
|
labelReplacements = {},
|
|
labelAddrs = {},
|
|
}
|
|
|
|
for line in code:gmatch("[^\n]+") do
|
|
line = trim(line)
|
|
if line:sub(1, 1)=="." then -- directive
|
|
local dir, rest = line:match("^%.([^ ]+) *(.*)$")
|
|
assert(dir and rest, "no directive on line "..line)
|
|
local dirf = directiveFunctions[dir] or error("invalid directive "..dir)
|
|
dirf(state, rest)
|
|
elseif line:sub(#line, #line)==":" then -- label
|
|
local name = line:sub(1, #line-1)
|
|
assert(not state.labelAddrs[name], "redefinition of label "..name)
|
|
state.labelAddrs[name] = state.curAddr
|
|
elseif line:find("[^ ]") then
|
|
assembleInstruction(line, state, instrs, validWords)
|
|
end
|
|
end
|
|
|
|
for _, rep in ipairs(state.labelReplacements) do
|
|
local expr = uexprs[rep.name]
|
|
if expr then
|
|
local val = postEvaluateExpression(expr, state.labelAddrs)
|
|
if rep.len==1 then addByte(state, val, rep.isCode)
|
|
elseif rep.len==2 then addWord(state, val, rep.isCode)
|
|
else error("invalid expr replace len "..rep.len) end
|
|
else
|
|
local labelAddr = state.labelAddrs[rep.name] or error("no label named "..rep.name)
|
|
state.curAddr = rep.addr
|
|
if rep.len==1 then addByte(state, labelAddr-(rep.addr+1), rep.isCode)
|
|
elseif rep.len==2 then addWord(state, labelAddr , rep.isCode)
|
|
else error("invalid labelreplace len "..rep.len) end
|
|
end
|
|
end
|
|
|
|
return state.memory, state.codeMap
|
|
end
|
|
|
|
local function readFile(fn)
|
|
local fi, err = io.open(fn, "r")
|
|
if not fi then error("could not open file "..fn..": "..err) end
|
|
local text = fi:read("*a")
|
|
fi:close()
|
|
return text
|
|
end
|
|
|
|
local function separateCommas(l)
|
|
local c = {}; for a in l:gmatch("[^,]+") do table.insert(c, trim(a)) end; return c;
|
|
end
|
|
local function evaluateExpression(expr, uexprs)
|
|
expr = expr:gsub("[^%+%-%*%/]+", function(word)
|
|
local val = decodeNumber(word) or error("invalid number in expression: "..word)
|
|
return val
|
|
end)
|
|
assert(not expr:find("[^a-zA-Z0-9_%(%)%+%-%*%/ \t\r\n]"), "invalid char in expression: "..expr)
|
|
local exprf = loadstring("return "..expr)
|
|
local eval = exprf() or error("invalid expr: "..expr)
|
|
return eval
|
|
end
|
|
local function preprocessCode(code)
|
|
code = "\n"..code.."\n"
|
|
|
|
local curscope = ""
|
|
local codet = {}
|
|
local wordt = {}
|
|
local lastword = ""
|
|
local function addword(word)
|
|
lastword = word
|
|
if word:sub(1, 1)=="." and not directiveFunctions[word:sub(2, #word)] then word = curscope..word end
|
|
table.insert(codet, word)
|
|
end
|
|
for i = 1, #code do
|
|
local c = code:sub(i, i)
|
|
if c:find("[%.a-zA-Z0-9_]") then table.insert(wordt, c)
|
|
else
|
|
if #wordt>0 then
|
|
addword(table.concat(wordt))
|
|
wordt = {}
|
|
end
|
|
if c==":" and lastword:sub(1, 1)~="." and not lastword:find("_BRACE_") then
|
|
curscope = lastword
|
|
end
|
|
table.insert(codet, c)
|
|
end
|
|
end
|
|
|
|
code = "\n"..table.concat(codet).."\n"
|
|
|
|
local funcmacros = {}
|
|
code = code:gsub(".define ([%.a-zA-Z0-9_]+)%(([^%)]+)%) ([^\n]+)", function(name, args, repl)
|
|
local argt = separateCommas(args)
|
|
for argidx, arg in ipairs(argt) do assert(not arg:find("[^a-zA-Z0-9_]"), "invalid character in macro arg name: "..name.." "..arg) end
|
|
repl = " "..repl.." "
|
|
local invoc = 0
|
|
funcmacros[name] = function(b, callargs)
|
|
invoc = invoc + 1
|
|
local callargt = separateCommas(callargs)
|
|
local callrepl = repl
|
|
for argidx, arg in ipairs(argt) do
|
|
local callarg = callargt[argidx]
|
|
callrepl = callrepl:gsub("([^a-zA-Z0-9_])"..arg.."([^a-zA-Z0-9_])", "%1"..callarg.."%2")
|
|
end
|
|
callrepl = callrepl:gsub("(_BRACE_[0-9]+_)", "%1"..invoc.."_")
|
|
return b..callrepl
|
|
end
|
|
return ""
|
|
end)
|
|
for name, replf in pairs(funcmacros) do code = code:gsub("([^a-zA-Z0-9_])"..name.." *%(([^%)]+)%)", replf) end
|
|
|
|
local simplemacros = {}
|
|
code = code:gsub("%.define +([%.a-zA-Z0-9_]+) +([^\n]+)", function(name, repl)
|
|
assert(not simplemacros[name], "Redefinition of macro "..name)
|
|
simplemacros[name] = repl
|
|
return ""
|
|
end)
|
|
--for name, repl in pairs(simplemacros) do code = code:gsub(name, repl, 1, true) end
|
|
for name, repl in pairs(simplemacros) do
|
|
local invoc = 0
|
|
code = code:gsub("([^a-zA-Z0-9_])"..name.."([^a-zA-Z0-9_])", function(b, a)
|
|
invoc = invoc+1
|
|
return b..(repl:gsub("(_BRACE_[0-9]+_)", "%1"..invoc.."_"))..a
|
|
end)
|
|
end
|
|
|
|
code = code:gsub("\\", "\n")
|
|
|
|
local uexprs = {}
|
|
|
|
local codet = {}
|
|
local exprt = {}
|
|
local parenLevel = 0
|
|
for i = 1, #code do
|
|
local c = code:sub(i, i)
|
|
if c=="(" then
|
|
if parenLevel>0 then table.insert(exprt, c) end
|
|
parenLevel = parenLevel+1
|
|
elseif c==")" then
|
|
parenLevel = parenLevel-1
|
|
if parenLevel==0 then
|
|
table.insert(codet, evaluateExpression(table.concat(exprt), uexprs))
|
|
exprt = {}
|
|
else
|
|
table.insert(exprt, c)
|
|
end
|
|
else
|
|
if parenLevel==0 then table.insert(codet, c)
|
|
else table.insert(exprt, c) end
|
|
end
|
|
end
|
|
code = table.concat(codet)
|
|
|
|
return code, uexprs
|
|
end
|
|
local function fixCode(code)
|
|
code = code:gsub(",", " ")
|
|
code = code:gsub(":([^\\/])", ":\n%1")
|
|
code = code:gsub("[ \t]+:", ":")
|
|
code = code:gsub("%]", " %] ")
|
|
code = code:gsub("%[", " %[ ")
|
|
code = code:gsub("%*", " %* ")
|
|
code = code:gsub("\n[ \t\r\n]*", "\n")
|
|
code = code:gsub(" +", " ")
|
|
|
|
return code
|
|
end
|
|
local stringEscapes = { ["\\"] = "\\", ["n"] = "\n", ["r"] = "\r", ["t"] = "\t", ["0"] = "\0", ["\""] = "\"", ["\'"] = "\'", }
|
|
local prefixIdx = 0
|
|
local function prefixCode(code, fn) -- fix strings, add line numbers
|
|
prefixIdx = prefixIdx + 1
|
|
|
|
local outt = {}
|
|
local outnextnl = {}
|
|
local linenum = 1
|
|
local skipnl = false
|
|
local function last() return outt[#outt] end
|
|
local function out(c) assert(type(c)=="string"); table.insert(outt, c); end
|
|
local function outn(n) out("$"..string.format("%02X", n)) out("\\") end
|
|
local function outnext(c) assert(type(c)=="string"); table.insert(outnextnl, c); end
|
|
local state = "code" -- code, comment, string, stringesc, commentml
|
|
|
|
local lastbracelabel = 0
|
|
local function bracelabel() lastbracelabel = lastbracelabel+1; return "_BRACE_"..string.format("%02d", prefixIdx)..lastbracelabel.."_"; end
|
|
local bracestack = {}
|
|
local bracehasmid = {}
|
|
local lastnl = false
|
|
|
|
local utf8str = ""
|
|
local utf8len = 0
|
|
|
|
local function newline()
|
|
lastnl = true
|
|
for _, v in ipairs(outnextnl) do
|
|
if v=="\n" and skipnl then out("\\")
|
|
else out(v) end
|
|
end; outnextnl = {};
|
|
end
|
|
|
|
out(".ln 1"); out("\n");
|
|
for i = 1, #code do
|
|
local c = code:sub(i, i)
|
|
local cn = code:sub(i+1, i+1)
|
|
local cp = code:sub(i-1, i-1)
|
|
|
|
if state=="code" then
|
|
if c=="\r" then
|
|
elseif c=="\n" or (c=="/" and cn~="/" and cn~="*") then
|
|
linenum = linenum+1
|
|
if not skipnl then out("\n") out(".ln "..linenum); out("\n"); end
|
|
newline()
|
|
skipnl = false
|
|
elseif c=="#" or c==";" or (c=="/" and cn=="/") then state = "comment"
|
|
elseif c=="/" and cn=="*" then state = "commentml"
|
|
elseif c=="\t" or c==" " then if (not lastnl) then out(" ") end
|
|
elseif c=="\"" then state = "string" lastnl = false
|
|
elseif c=="\\" then skipnl = true; out("\\");
|
|
elseif c==":" then out(c); if skipnl then out("\\") else out("\n") end; lastnl = true;
|
|
elseif c:find("^[a-zA-Z0-9_%.%$%(%)%*,%[%]%+%-%*%/]$") then out(c); lastnl = false
|
|
elseif c=="{" then
|
|
table.insert(bracestack, bracelabel())
|
|
if not lastnl then out(bracestack[#bracestack].."MID") end
|
|
outnext(bracestack[#bracestack].."START:"); outnext("\n");
|
|
elseif c=="}" then
|
|
if not lastnl then out(bracestack[#bracestack].."START") end
|
|
if not bracehasmid[#bracestack] then outnext(bracestack[#bracestack].."MID:"); outnext("\n"); end
|
|
outnext(bracestack[#bracestack].."END:"); outnext("\n");
|
|
bracehasmid[#bracestack] = nil
|
|
bracestack[#bracestack] = nil
|
|
elseif c=="|" then
|
|
if not lastnl then out(bracestack[#bracestack].."END") end
|
|
outnext(bracestack[#bracestack].."MID:"); outnext("\n");
|
|
bracehasmid[#bracestack] = true
|
|
else error("invalid char "..c) end
|
|
elseif state=="comment" then
|
|
if c=="\n" then state = "code" out("\n") newline() end
|
|
elseif state=="commentml" then
|
|
if c=="/" and cp=="*" then state = "code" end
|
|
elseif state=="string" then
|
|
if c=="\\" then state = "stringesc"
|
|
elseif c=="\"" then state = "code"
|
|
elseif c:byte()>=128 then
|
|
utf8str = c
|
|
utf8len = getutf8len(c)
|
|
state = "stringutf8"
|
|
else outn(c:byte()) end
|
|
elseif state=="stringesc" then
|
|
outn(string.byte(stringEscapes[c] or error("invalid escape "..c))); state = "string";
|
|
elseif state=="stringutf8" then
|
|
utf8str = utf8str..c
|
|
if #utf8str == utf8len then
|
|
local valt = utf8table[utf8str]
|
|
if not valt then local datastr = ""; for i = 1, #utf8str do datastr = datastr .. string.format("%02X ", utf8str:sub(i, i):byte()) end;
|
|
error("Unrecognized UTF-8 character: "..datastr); end
|
|
for i, v in ipairs(valt) do outn(v) end
|
|
state = "string"
|
|
end
|
|
end
|
|
end
|
|
assert(#bracestack==0, "unclosed brace")
|
|
local code2 = table.concat(outt)
|
|
|
|
return code2
|
|
end
|
|
local function fixFilename(fn)
|
|
fn = fn:gsub("[^a-zA-Z0-9_]", "_")
|
|
return fn
|
|
end
|
|
local function includeFile(fn)
|
|
local code = readFile(fn)
|
|
code = prefixCode(code, fn)
|
|
local fnf = fixFilename(fn)
|
|
code = ".fn "..fnf.."\n"..code
|
|
code = code:gsub(".include ([^\r\n]+)", function(fn2)
|
|
fn2 = fn:gsub("[^\\/]+$", "")..fn2
|
|
return "\n"..includeFile(fn2).."\n"..".fn "..fnf.."\n"
|
|
end)
|
|
return code
|
|
end
|
|
local function instrsFromArch(arch)
|
|
local function arraySize(imms) local s = 1; for i = 1, #imms do s = s*(imms[i].val or error("invalid array size")) end; return s; end
|
|
local instrs = {
|
|
imm8 = function() return 0, true end,
|
|
imm16 = function() return 0, true end,
|
|
byte = function() return 1, false end,
|
|
word = function() return 2, false end,
|
|
["byte imm8"] = function() return 0, true end,
|
|
["word imm16"] = function() return 0, true end,
|
|
["byte [ imm8 ]" ] = function(imms) return arraySize(imms) , false end,
|
|
["byte [ imm16 ]"] = function(imms) return arraySize(imms) , false end,
|
|
["word [ imm8 ]" ] = function(imms) return arraySize(imms)*2, false end,
|
|
["word [ imm16 ]"] = function(imms) return arraySize(imms)*2, false end,
|
|
}
|
|
local function addMnem(mnem, opcode)
|
|
instrs[mnem] = opcode
|
|
if mnem:find("%*") then instrs[mnem:gsub("%*", "%[").." ]"] = opcode end
|
|
end
|
|
for _, instr in ipairs(arch.instructions) do
|
|
if instr.mnem then
|
|
local mnem = instr.mnem
|
|
mnem = mnem:gsub("([%*%+%-])", " %1 ")
|
|
mnem = trim(mnem):gsub(" +", " ")
|
|
addMnem(mnem, instr.opcode)
|
|
local alias = arch.aliases[trim(mnem)]
|
|
if alias then for _, v in ipairs(alias) do addMnem(v, instr.opcode) end end
|
|
end
|
|
end
|
|
return instrs
|
|
end
|
|
local function assembleFile(fn, arch)
|
|
local code = includeFile(fn)
|
|
code, uexprs = preprocessCode(code)
|
|
code = fixCode(code)
|
|
local instrs = instrsFromArch(arch)
|
|
local mem, code = assembleCode(code, instrs, uexprs)
|
|
return mem, code
|
|
end
|
|
|
|
local function mnemsFromArch(arch)
|
|
local mnems = {}
|
|
for _, instr in ipairs(arch.instructions) do
|
|
if instr.mnem then
|
|
local len = 1
|
|
for l in instr.mnem:gmatch("imm([0-9]+)") do len = len + tonumber(l)/8 end
|
|
mnems[instr.opcode] = { mnem = instr.mnem, rel = instr.rel, jmp = instr.jmp, len = len, }
|
|
end
|
|
end
|
|
return mnems
|
|
end
|
|
local function toSigned8(x) return x>=128 and x-256 or x end
|
|
local function disassembleMemory(mem, code, arch)
|
|
local mnems = mnemsFromArch(arch)
|
|
|
|
local addr = 0
|
|
local function nextByte(d) local b = mem[addr]; addr = addr+1; return b or d; end
|
|
local lastaddr = 0
|
|
local jmpaddrs = {}
|
|
while addr<=0xFFFF do
|
|
local startaddr = addr
|
|
local opcode = nextByte()
|
|
if opcode and ((not code) or code[startaddr]) then
|
|
local mnem = mnems[opcode]
|
|
if mnem then
|
|
if mnem.jmp then
|
|
local jmpdest
|
|
if mnem.rel then jmpdest = toSigned8(nextByte(0)) + addr
|
|
else jmpdest = nextByte(0)*256 + nextByte(0)
|
|
end
|
|
if jmpdest then
|
|
if not jmpaddrs[jmpdest] then
|
|
jmpaddrs[jmpdest] = { rel = mnem.rel, from = {}, }
|
|
end
|
|
table.insert(jmpaddrs[jmpdest].from, startaddr)
|
|
jmpaddrs[jmpdest].rel = jmpaddrs[jmpdest].rel and mnem.rel
|
|
end
|
|
else
|
|
addr = addr + mnem.len - 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
local labelnum, subnum = 0, 0
|
|
for _, jmp in pairs(jmpaddrs) do
|
|
if jmp.rel then jmp.name = "label_" ..labelnum; labelnum = labelnum+1;
|
|
else jmp.name = "subroutine_"..subnum ; subnum = subnum +1; end
|
|
end
|
|
|
|
local lines = {}
|
|
addr = 0
|
|
while addr<=0xFFFF do
|
|
local startaddr = addr
|
|
local opcode = nextByte()
|
|
if opcode and ((not code) or code[startaddr]) then
|
|
local line = {}
|
|
local mnem = mnems[opcode].mnem or "???"
|
|
table.insert(line, trim(mnem:gsub("imm[0-9]+", "")))
|
|
local tlen = 1
|
|
for lens in mnem:gmatch("imm([0-9]+)") do local len = tonumber(lens)/8
|
|
if len==1 then
|
|
local data = nextByte(0)
|
|
local jmp
|
|
if mnems[opcode].rel then
|
|
local jmpdest = (addr + toSigned8(data))%65536
|
|
jmp = jmpaddrs[jmpdest]
|
|
if jmp then
|
|
table.insert(line, jmp.name)
|
|
--table.insert(line, ";")
|
|
--table.insert(line, "$"..string.format("%04X", jmpdest)..",")
|
|
end
|
|
end
|
|
if not jmp then table.insert(line, "$"..string.format("%02X", data)) end
|
|
elseif len==2 then
|
|
local data = nextByte(0)*256 + nextByte(0)
|
|
local jmp
|
|
if mnems[opcode].jmp then
|
|
local jmpdest = data
|
|
jmp = jmpaddrs[jmpdest]
|
|
if jmp then
|
|
table.insert(line, jmp.name)
|
|
--table.insert(line, ";")
|
|
end
|
|
end
|
|
if not jmp then table.insert(line, "$"..string.format("%04X", data)) end
|
|
else error("invalid imm len") end
|
|
tlen = tlen + len
|
|
end
|
|
local lineb = {}
|
|
for i = addr-tlen, addr-1 do
|
|
table.insert(lineb, string.format("%02X", mem[i] or 0))
|
|
end
|
|
local label = ""
|
|
local jmp = jmpaddrs[startaddr]
|
|
if jmp then label = jmp.name..":" end
|
|
local lb = table.concat(lineb, " ")
|
|
if lastaddr~=addr-tlen then table.insert(lines, "...") end
|
|
table.insert(lines, string.format("%04X", addr-tlen).." | "..(" "):rep(8-#lb)..lb.." | "..(" "):rep(13-#label)..label.." "..table.concat(line, " "))
|
|
lastaddr = addr
|
|
end
|
|
end
|
|
return table.concat(lines, "\n")
|
|
end
|
|
local function memToHex(hex)
|
|
local mem = {}
|
|
local addr = 0
|
|
for d in hex:gmatch("[0-9a-fA-F][0-9a-fA-F]") do
|
|
mem[addr] = tonumber(d, 16)
|
|
addr = addr+1
|
|
end
|
|
return mem
|
|
end
|
|
local function disassembleHex(hex, arch)
|
|
return disassembleMemory(memToHex(hex), arch)
|
|
end
|
|
|
|
local printableCharsS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789`-=[]\\;\',./~!@#$%^&*()_+{}|:\"<> "
|
|
local printableChars = {}; for i = 1, #printableCharsS do printableChars[printableCharsS:sub(i, i)] = true end;
|
|
local function toPrintableChar(n)
|
|
local c = string.char(n)
|
|
return printableChars[c] and c or "?"
|
|
end
|
|
local function printMemory(mem)
|
|
local anynonempty = false
|
|
local lastbase = -16
|
|
local lastline = ""
|
|
local numreps = 0
|
|
local lines = {}
|
|
local function closereps(base)
|
|
if numreps~=0 then
|
|
table.insert(lines, "(repeated "..numreps.." more times, up to "..string.format("%04X", base+15)..")")
|
|
numreps = 0
|
|
end
|
|
end
|
|
for base = 0, 0xFFF0, 16 do
|
|
local line = {}
|
|
local strt = {}
|
|
local nonempty = false
|
|
for addr = base, base+15 do
|
|
if addr%4==0 then table.insert(line, " ") end
|
|
if mem[addr]==false then
|
|
nonempty = true
|
|
table.insert(line, "XX ")
|
|
table.insert(strt, "X")
|
|
elseif mem[addr] then
|
|
nonempty = true
|
|
table.insert(line, string.format("%02X", mem[addr]).." ")
|
|
table.insert(strt, toPrintableChar(mem[addr]))
|
|
else
|
|
table.insert(line, "-- ")
|
|
table.insert(strt, "-")
|
|
end
|
|
end
|
|
if nonempty then
|
|
local l = table.concat(line)
|
|
if l~=lastline or base~=lastbase+16 then
|
|
closereps(base-16)
|
|
if base ~= lastbase+16 then table.insert(lines, "...") end
|
|
table.insert(lines, string.format("%04X", base).." | "..l.." | "..table.concat(strt))
|
|
else
|
|
numreps = numreps+1
|
|
end
|
|
lastline = l
|
|
lastbase = base
|
|
anynonempty = true
|
|
end
|
|
end
|
|
closereps(lastbase)
|
|
if not anynonempty then table.insert(lines, "Empty") end
|
|
|
|
return table.concat(lines, "\n")
|
|
end
|
|
|
|
local HasTs = ts~=nil
|
|
local ts = ts or {
|
|
call = function() end,
|
|
eval = function() end,
|
|
}
|
|
ts.eval [[
|
|
function commandShiftBrick(%x, %y, %z) { commandToServer('shiftBrick', %x, %y, %z); }
|
|
function commandPlantBrick() { commandToServer('plantBrick'); }
|
|
]]
|
|
local function plantBrickAt(brickpos, pos)
|
|
local dx, dy, dz = pos[1]-brickpos[1], pos[2]-brickpos[2], pos[3]-brickpos[3]
|
|
ts.call("commandShiftBrick", dy, -dx, dz)
|
|
ts.call("commandPlantBrick")
|
|
brickpos[1], brickpos[2], brickpos[3] = pos[1], pos[2], pos[3]
|
|
end
|
|
local function buildMemory(mem, romsize, offset, len)
|
|
offset = offset or 0
|
|
|
|
local rombytes = romsize[1]*romsize[2]*romsize[3]/8
|
|
if len and len>rombytes then error("rom not big enough to hold "..len.." bytes (holds "..rombytes..")") end
|
|
if not len then
|
|
for i = 0, 0xFFFF do
|
|
if mem[i] and (i<offset or i>=offset+rombytes) then error("memory does not fit in rom at addr "..string.format("%04X", i)) end
|
|
end
|
|
end
|
|
|
|
local brickpos = {0, 0, 0}
|
|
for x = 0, romsize[1]-1 do
|
|
for y = 0, romsize[2]-1 do
|
|
for z = 0, romsize[3]-1 do
|
|
local addr = offset + ((romsize[3]/8)*(x + y*romsize[1]) + math.floor(z/8))
|
|
local pow = math.pow(2, z%8)
|
|
local data = (addr>=offset and ((not len) or addr<offset+len) and mem[addr]) or 0
|
|
local bit = math.floor(data/pow)%2
|
|
if bit==1 then plantBrickAt(brickpos, {x, -y, z}) end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
local function strtovec(str) local v = {}; for word in str:gmatch("[^ \t\r\n]+") do table.insert(v, tonumber(word)) end; return v; end
|
|
if HasTs or (not AsmIncluded) then
|
|
function AssembleBuildFile(fn, romsizes, offsets, lens) local offset = tonumber(offsets); local len = tonumber(lens); local romsize = strtovec(romsizes);
|
|
local arch = require("rom-8608-defs")
|
|
local mem, code = assembleFile(fn, arch)
|
|
print(""..fn:match("[^/\\]+$").."\n")
|
|
|
|
print("Memory Dump:")
|
|
print(printMemory(mem))
|
|
print()
|
|
print("Disassembly:")
|
|
print(disassembleMemory(mem, code, arch))
|
|
print()
|
|
|
|
assert(#romsize==3, "incorrect rom size")
|
|
buildMemory(mem, romsize, offset, len)
|
|
end
|
|
ts.eval [[
|
|
function AssembleBuildFile(%fn, %romsize, %offset, %len) { luacall("AssembleBuildFile", strReplace(%fn, "$", "Add-ons/_misc/rom/8608programs/"), %romsize, %offset, %len); }
|
|
]]
|
|
if not HasTs then AssembleBuildFile(arg[1] or "../8608programs/test.asm", "16 16 8", "0", "256") end
|
|
end
|
|
|
|
return {
|
|
assembleFile = assembleFile,
|
|
disassembleMemory = disassembleMemory,
|
|
printMemory = printMemory,
|
|
}
|