215 lines
6.5 KiB
Lua
215 lines
6.5 KiB
Lua
local MEMSIZE=16
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local SHUTUP = false
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if not digiline then
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print("Digilines not found.")
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return
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end
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local path = minetest.get_modpath(minetest.get_current_modname())
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local oldprint=print
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local function print(...)
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if SHUTUP then return end
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for k,v in ipairs({...}) do
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oldprint("[Test3D:T400] "..tostring(v))
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end
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end
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print("Loading.")
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local function pos2string(pos)
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return tostring(pos.x)..","..tostring(pos.y)..","..tostring(pos.z)
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end
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local function push(pos,val)
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local meta = minetest.get_meta(pos)
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local sstring = ""
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local sstab = string.split(meta:get_string("stack"),"\n")
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sstab[#sstab+1] = tostring(tonumber(val) % 4096)
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if #sstab > MEMSIZE then
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table.remove(sstab,1)
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end
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for k,v in ipairs(sstab) do
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sstring = sstring .. v .. "\n"
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end
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meta:set_string("stack",sstring)
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end
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local function pop(pos)
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local meta = minetest.get_meta(pos)
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local sstring = ""
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local sstab = string.split(meta:get_string("stack"),"\n")
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local sval = table.remove(sstab,#sstab)
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for k,v in ipairs(sstab) do
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sstring = sstring .. v .. "\n"
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end
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meta:set_string("stack",sstring)
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if not sval then sval = 0 end
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return tonumber(sval) % 4096
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end
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local function t400_digiline_receive(pos, node, channel, msg)
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print("Digiline: "..tostring(pos.x)..","..tostring(pos.y)..","..tostring(pos.z).."; Channel: "..tostring(channel).."; Message: "..tostring(msg))
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local meta = minetest.get_meta(pos)
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print(meta:get_string("state").." "..meta:get_string("waitingfor"))
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if meta:get_string("state") == "waitingdat" and meta:get_string("waitingfor") == channel then
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print("got data")
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push(pos,tonumber(msg))
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meta:set_int("pc",meta:get_int("pc")+1)
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meta:set_string("state","running")
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print("finished getting data")
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elseif meta:get_string("state") == "waitingins" and meta:get_string("waitingfor") == channel then
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meta:set_int("ci",tonumber(msg))
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meta:set_string("state","running")
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end
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end
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print("Created T400 digiline function")
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local function t400_set_meta(pos)
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local meta = minetest.get_meta(pos)
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local ms = ""
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for i = 1, MEMSIZE do
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ms = ms .. "0\n"
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end
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meta:set_string("stack",ms)
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meta:set_string("retstack",ms)
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meta:set_string("channel","Default")
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meta:set_string("state","running")
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meta:set_string("waitingfor","")
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meta:set_int("pc",0)
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meta:set_int("ci",0)
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meta:set_string("formspec","size[5,5]\nlabel[0.4,0.5;T400 Execution Node]\nfield[0.5,2;4,1;channel;Channel prefix;${channel}]\nfield[0.5,3;4,1;pc;Program Counter;${pc}]field[0.5,4;4,1;state;State;${state}]")
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end
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minetest.register_node("test3d_t400:t400", {
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description = "T400 Execution Node",
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tiles = {
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{
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image="t400.png",
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animation={
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type = "vertical_frames",
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aspect_w=16,
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aspect_h=16,
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length=18,
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length=1.8,
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},
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},
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},
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on_construct = t400_set_meta,
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groups = {snappy=1,choppy=2,oddly_breakable_by_hand=2,flammable=3},
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digiline = {
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receptor = {},
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effector = {
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action = t400_digiline_receive
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}
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},
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on_receive_fields = function(pos,_,fields,sender)
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if fields.channel == nil then return end
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local meta = minetest.get_meta(pos)
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fields.channel = fields.channel or ""
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meta:set_string("channel",fields.channel)
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meta:set_string("pc",fields.pc)
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meta:set_string("state",fields.state)
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end
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})
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print("T400 node registered")
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minetest.register_abm({
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nodenames={"test3d_t400:t400"},
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interval=0.1,
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chance=1,
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action = function(pos)
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local meta = minetest.get_meta(pos)
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local nins = 1
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if meta:get_string("state") == "running" then
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local skipnext = false
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print("Attempting to run T400 node at "..pos2string(pos))
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local ci = meta:get_int("ci")
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if ci == 4095 then -- ppc
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push(pos,meta:get_int("pc"))
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elseif ci == 4094 then -- swp - why do I have this?
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local a = pop(pos)
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local b = pop(pos)
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print("Swapping "..tostring(a).." for "..tostring(b))
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push(pos,b)
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push(pos,a)
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elseif ci == 4093 then -- read
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skipnext = true
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local addr = pop(pos)
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meta:set_string("state","waitingdat")
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meta:set_string("waitingfor",meta:get_string("channel")..string.format("%X",addr))
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meta:set_int("pc",meta:get_int("pc")+nins)
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digiline:receptor_send(pos,digiline.rules.default,meta:get_string("channel")..string.format("%X",addr),"get")
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return
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elseif ci == 4092 then -- write
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local addr = pop(pos)
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local dat = pop(pos)
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print("Writing "..tostring(dat).." to address "..addr)
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digiline:receptor_send(pos,digiline.rules.default,meta:get_string("channel")..string.format("%X",addr),dat)
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elseif ci == 4091 then -- add
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print("Adding stuff")
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push(pos,pop(pos)+pop(pos))
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elseif ci == 4090 then -- sub
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push(pos,pop(pos)-pop(pos))
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elseif ci == 4089 then -- jmp
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local npc = pop(pos)
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print("Jumping to "..tostring(npc))
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meta:set_int("pc",npc)
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nins=0
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elseif ci == 4088 then -- sez
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local val = pop(pos)
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print(val,type(val))
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if val == 0 then
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print("Skipping because "..tostring(val).." = 0")
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nins=nins+1
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end
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elseif ci == 4087 then -- jez
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local addr = pop(pos)
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local val = pop(pos)
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if val == 0 then
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print("Jumping to "..addr.." because "..val.." = 0")
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meta:set_int("pc",addr)
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nins=0
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end
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elseif ci == 4086 then -- jsr
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local sstring = ""
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local sstab = string.split(meta:get_string("retstack"),"\n")
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sstab[#sstab+1] = tostring(tonumber(meta:get_int("pc")) % 4096)
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if #sstab > MEMSIZE then
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table.remove(sstab,1)
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end
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for k,v in ipairs(sstab) do
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sstring = sstring .. v .. "\n"
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end
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meta:set_string("retstack",sstring)
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meta:set_int("pc",pop(pos))
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nins=0
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elseif ci == 4085 then -- ret
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local sstring = ""
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local sstab = string.split(meta:get_string("retstack"),"\n")
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local sval = tonumber(table.remove(sstab,#sstab))
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for k,v in ipairs(sstab) do
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sstring = sstring .. v .. "\n"
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end
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meta:set_string("retstack",sstring)
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if not sval then sval = 0 end
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meta:set_int("pc",sval)
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elseif ci == 4084 then -- dup
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local v = pop(pos)
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push(pos,v)
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push(pos,v)
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print("Duplicating "..v)
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elseif ci == 4083 then -- drop
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print("Dropping stuff")
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pop(pos)
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else
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print("Pushing "..ci.." to "..pos2string(pos))
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push(pos,ci)
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end
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if not skipnext then
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meta:set_int("pc",meta:get_int("pc")+nins)
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meta:set_string("state","waitingins")
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meta:set_string("waitingfor",meta:get_string("channel")..string.format("%X",meta:get_int("pc")))
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digiline:receptor_send(pos, digiline.rules.default, meta:get_string("channel")..string.format("%X",meta:get_int("pc")), "get")
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end
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end
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end
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})
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print("T400 ABM registered")
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print("T400 init finished")
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