mods that hopefully work for a TechAge-based pack
This commit is contained in:
tangent committed
1 parent
4e6b08d194
commit
c27db2a537
6234 files changed
+375578
No files matched your search
@@ -0,0 +1,222 @@
|
||||
|
||||
local lg = {}
|
||||
|
||||
local operations = {
|
||||
-- table index: Index in the formspec dropdown
|
||||
-- gate: Internal name
|
||||
-- short: Serialized form, single character
|
||||
-- fs_name: Display name, padded to 4 characters
|
||||
-- func: Function that applies the operation
|
||||
-- unary: Whether this gate only has one input
|
||||
{ gate = "and", short = "&", fs_name = " AND", func = function(a, b) return a and b end },
|
||||
{ gate = "or", short = "|", fs_name = " OR", func = function(a, b) return a or b end },
|
||||
{ gate = "not", short = "~", fs_name = " NOT", func = function(_, b) return not b end, unary = true },
|
||||
{ gate = "xor", short = "^", fs_name = " XOR", func = function(a, b) return a ~= b end },
|
||||
{ gate = "nand", short = "?", fs_name = "NAND", func = function(a, b) return not (a and b) end },
|
||||
{ gate = "buf", short = "_", fs_name = " =", func = function(_, b) return b end, unary = true },
|
||||
{ gate = "xnor", short = "=", fs_name = "XNOR", func = function(a, b) return a == b end },
|
||||
{ gate = "nor", short = "!", fs_name = " NOR", func = function(a, b) return not (a or b) end },
|
||||
}
|
||||
|
||||
lg.get_operations = function()
|
||||
return operations
|
||||
end
|
||||
|
||||
-- (de)serialize
|
||||
lg.serialize = function(t)
|
||||
local function _op(t)
|
||||
if t == nil then
|
||||
return " "
|
||||
elseif t.type == "io" then
|
||||
return t.port
|
||||
else -- t.type == "reg"
|
||||
return tostring(t.n)
|
||||
end
|
||||
end
|
||||
-- Serialize actions (gates) from eg. "and" to "&"
|
||||
local function _action(action)
|
||||
for i, data in ipairs(operations) do
|
||||
if data.gate == action then
|
||||
return data.short
|
||||
end
|
||||
end
|
||||
return " "
|
||||
end
|
||||
|
||||
local s = ""
|
||||
for i = 1, 14 do
|
||||
local cur = t[i]
|
||||
if next(cur) ~= nil then
|
||||
s = s .. _op(cur.op1) .. _action(cur.action) .. _op(cur.op2) .. _op(cur.dst)
|
||||
end
|
||||
s = s .. "/"
|
||||
end
|
||||
return s
|
||||
end
|
||||
|
||||
lg.deserialize = function(s)
|
||||
local function _op(c)
|
||||
if c == "A" or c == "B" or c == "C" or c == "D" then
|
||||
return {type = "io", port = c}
|
||||
elseif c == " " then
|
||||
return nil
|
||||
else
|
||||
return {type = "reg", n = tonumber(c)}
|
||||
end
|
||||
end
|
||||
-- Deserialize actions (gates) from eg. "&" to "and"
|
||||
local function _action(action)
|
||||
for i, data in ipairs(operations) do
|
||||
if data.short == action then
|
||||
return data.gate
|
||||
end
|
||||
end
|
||||
-- nil
|
||||
end
|
||||
|
||||
local ret = {}
|
||||
for part in s:gmatch("(.-)/") do
|
||||
local parsed
|
||||
if part == "" then
|
||||
parsed = {}
|
||||
else
|
||||
parsed = {
|
||||
action = _action( part:sub(2,2) ),
|
||||
op1 = _op( part:sub(1,1) ),
|
||||
op2 = _op( part:sub(3,3) ),
|
||||
dst = _op( part:sub(4,4) ),
|
||||
}
|
||||
end
|
||||
ret[#ret + 1] = parsed
|
||||
end
|
||||
-- More than 14 instructions (write to all 10 regs + 4 outputs)
|
||||
-- will not pass the write-once requirement of the validator
|
||||
assert(#ret == 14)
|
||||
return ret
|
||||
end
|
||||
|
||||
-- validation
|
||||
lg.validate_single = function(t, i)
|
||||
local function is_reg_written_to(t, n, max)
|
||||
for i = 1, max-1 do
|
||||
if next(t[i]) ~= nil
|
||||
and t[i].dst and t[i].dst.type == "reg"
|
||||
and t[i].dst.n == n then
|
||||
return true
|
||||
end
|
||||
end
|
||||
return false
|
||||
end
|
||||
local function compare_op(t1, t2, allow_same_io)
|
||||
if t1 == nil or t2 == nil then
|
||||
return false
|
||||
elseif t1.type ~= t2.type then
|
||||
return false
|
||||
end
|
||||
if t1.type == "reg" and t1.n == t2.n then
|
||||
return true
|
||||
elseif t1.type == "io" and t1.port == t2.port then
|
||||
return not allow_same_io
|
||||
end
|
||||
return false
|
||||
end
|
||||
local elem = t[i]
|
||||
|
||||
local gate_data
|
||||
for j, data in ipairs(operations) do
|
||||
if data.gate == elem.action then
|
||||
gate_data = data
|
||||
break
|
||||
end
|
||||
end
|
||||
|
||||
-- check for completeness
|
||||
if not gate_data then
|
||||
return {i = i, msg = "Gate type is required"}
|
||||
elseif gate_data.unary then
|
||||
if elem.op1 ~= nil or elem.op2 == nil or elem.dst == nil then
|
||||
return {i = i, msg = "Second operand (only) and destination are required"}
|
||||
end
|
||||
else
|
||||
if elem.op1 == nil or elem.op2 == nil or elem.dst == nil then
|
||||
return {i = i, msg = "Operands and destination are required"}
|
||||
end
|
||||
end
|
||||
-- check whether operands/destination are identical
|
||||
if compare_op(elem.op1, elem.op2) then
|
||||
return {i = i, msg = "Operands cannot be identical"}
|
||||
end
|
||||
if compare_op(elem.op1, elem.dst, true) or compare_op(elem.op2, elem.dst, true) then
|
||||
return {i = i, msg = "Destination and operands must be different"}
|
||||
end
|
||||
-- check whether operands point to defined registers
|
||||
if elem.op1 ~= nil and elem.op1.type == "reg"
|
||||
and not is_reg_written_to(t, elem.op1.n, i) then
|
||||
return {i = i, msg = "First operand is undefined register"}
|
||||
end
|
||||
if elem.op2.type == "reg" and not is_reg_written_to(t, elem.op2.n, i) then
|
||||
return {i = i, msg = "Second operand is undefined register"}
|
||||
end
|
||||
-- check whether destination points to undefined register
|
||||
if elem.dst.type == "reg" and is_reg_written_to(t, elem.dst.n, i) then
|
||||
return {i = i, msg = "Destination is already used register"}
|
||||
end
|
||||
|
||||
return nil
|
||||
end
|
||||
|
||||
lg.validate = function(t)
|
||||
for i = 1, 14 do
|
||||
if next(t[i]) ~= nil then
|
||||
local r = lg.validate_single(t, i)
|
||||
if r ~= nil then
|
||||
return r
|
||||
end
|
||||
end
|
||||
end
|
||||
return nil
|
||||
end
|
||||
|
||||
-- interpreter
|
||||
lg.interpret = function(t, a, b, c, d)
|
||||
local function _action(s, v1, v2)
|
||||
for i, data in ipairs(operations) do
|
||||
if data.gate == s then
|
||||
return data.func(v1, v2)
|
||||
end
|
||||
end
|
||||
return false -- unknown gate
|
||||
end
|
||||
local function _op(t, regs, io_in)
|
||||
if t.type == "reg" then
|
||||
return regs[t.n]
|
||||
else -- t.type == "io"
|
||||
return io_in[t.port]
|
||||
end
|
||||
end
|
||||
|
||||
local io_in = {A=a, B=b, C=c, D=d}
|
||||
local regs = {}
|
||||
local io_out = {}
|
||||
for i = 1, 14 do
|
||||
local cur = t[i]
|
||||
if next(cur) ~= nil then
|
||||
local v1, v2
|
||||
if cur.op1 ~= nil then
|
||||
v1 = _op(cur.op1, regs, io_in)
|
||||
end
|
||||
v2 = _op(cur.op2, regs, io_in)
|
||||
|
||||
local result = _action(cur.action, v1, v2)
|
||||
|
||||
if cur.dst.type == "reg" then
|
||||
regs[cur.dst.n] = result
|
||||
else -- cur.dst.type == "io"
|
||||
io_out[cur.dst.port] = result
|
||||
end
|
||||
end
|
||||
end
|
||||
return io_out.A, io_out.B, io_out.C, io_out.D
|
||||
end
|
||||
|
||||
return lg
|
||||
Reference in new issue
Block a user