Fix some small metamachine issues, and make the virtual EEPROM for metamachine better.

repository/apps/app-metamachine.lua

@@ -201,10 +201,10 @@ local insertionCallbacks = {
    f.close()
    return contents
   end
-  local function setCore(fd, size, contents)
+  local function setCore(fd, size, contents, important)
    checkArg(1, contents, "string")
    if #contents > size then return nil, "too large" end
-   if ro then
+   if ro and important then
     return nil, "storage is readonly"
    end
    local f = icecap.open(fd, true)
@@ -219,7 +219,7 @@ local insertionCallbacks = {
     return getCore(boot)
    end,
    set = function (contents)
-    return setCore(boot, codeSize, contents)
+    return setCore(boot, codeSize, contents, true)
    end,
    makeReadonly = function ()
     ro = true
@@ -237,8 +237,8 @@ local insertionCallbacks = {
    getData = function ()
     return getCore(data)
    end,
-   setData = function ()
+   setData = function (contents)
-    return setCore(data, dataSize, contents)
+    return setCore(data, dataSize, contents, false)
    end
   }
  end,
@@ -304,7 +304,11 @@ vmComputer.energy = os.energy
 vmOs.energy = nil
 vmComputer.maxEnergy = os.maxEnergy
 vmOs.maxEnergy = nil
-vmComputer.uptime = os.uptime
+
+local startupUptime = os.uptime()
+vmComputer.uptime = function ()
+ return os.uptime() - startupUptime
+end
 vmOs.uptime = nil
 vmComputer.address = os.address
 vmOs.address = nil
@@ -319,10 +323,12 @@ vmComputer.tmpAddress = function ()
  return tmpAddress
 end
 
+local eepromAddress = "k-eeprom"
 vmComputer.getBootAddress = function ()
- return "k-eeprom"
+ return eepromAddress
 end
-vmComputer.setBootAddress = function ()
+vmComputer.setBootAddress = function (a)
+ eepromAddress = a
 end
 vmComputer.users = function ()
  return {}
@@ -469,7 +475,7 @@ end
 
 vmBaseCoroutineWrap = coroutine.wrap(function ()
  vmBaseCoroutine = coroutine.running()
- local eepromAddress = vmComponent.list("eeprom")()
+ eepromAddress = vmComponent.list("eeprom")()
  if not eepromAddress then
   error("No EEPROM")
  end

repository/data/app-metamachine/confboot.lua

@@ -1,3 +1,9 @@
+-- This is released into the public domain.
+-- No warranty is provided, implied or otherwise.
+
+-- confboot.lua : VM configuration program
+-- Authors: 20kdc
+
 -- _MMstartVM(name)
 -- _MMcomList(...)
 -- _MMserial(str)
@@ -88,6 +94,24 @@ function genEditor()
    genEditor()
   end})
  end
+ if not currentVM["k-eeprom"] then
+  table.insert(menu, {"+ Virtual EEPROM (R/W, preloaded w/ LUCcABOOT)...", function ()
+   currentVM[currentVMId .. "-eeprom"] = {"eeprom", "/vc-" .. currentVMId .. ".lua", "/vd-" .. currentVMId .. ".bin", "VM BIOS", false}
+   genEditor()
+   -- do file copy now!
+   local handleA = fs.open("/lucaboot.lua", "rb")
+   local handleB = fs.open("/vc-" .. currentVMId .. ".lua", "wb")
+   if not handleA then if handleB then fs.close(handleB) end return end
+   if not handleB then fs.close(handleA) return end
+   while true do
+    local s = fs.read(handleA, 2048)
+    if not s then break end
+    fs.write(handleB, s)
+   end
+   fs.close(handleA)
+   fs.close(handleB)
+  end})
+ end
  table.insert(menu, {"+ Virtual FS (R/W)...", function ()
   genFSSelector(function (fsa)
    if fsa then

repository/data/app-metamachine/lucaboot.lua

@@ -1,7 +1,116 @@
+-- This is released into the public domain.
+-- No warranty is provided, implied or otherwise.
+
+-- lucaboot.lua : Fake EEPROM for VM.
+-- Authors: 20kdc
+
 -- LUCcABOOT v0
-local lr = "(no inits)"
+-- awful name I know
+
+local eprox = component.proxy(component.list("eeprom", true)())
+computer.getBootAddress = eprox.getData
+computer.setBootAddress = eprox.setData
+eprox = nil
+
+local logo = {
+ "               ⣀▄⣀               ",
+ "           ⣀▄⠶▀⠉ ⠉█⠶▄⣀           ",
+ "       ⣀▄⠶▀⠉     ◢◤  ⠉▀⠶▄⣀       ",
+ "   ⣀▄⠶▀⠉        ◢◤       ⠉▀⠶▄⣀   ",
+ " ◢⠿⣭⣀      meta ◯ machine   ⣀⣭⠿◣ ",
+ " █  ⠉▀⠶▄⣀      ◢◤       ⣀▄⠶▀⠉  █ ",
+ " █      ⠉▀⠶▄⣀ ◢◤    ⣀▄⠶▀⠉  ⣀▄⠶ █ ",
+ " █⣀         ⠉▀⠿▄▄▄⠶▀⠉      ⠉  ⣀█ ",
+ "  ⠉▀⠶▄⣀         █         ⣀▄⠶▀⠉  ",
+ "      ⠉▀⠶▄⣀     █     ⣀▄⠶▀⠉      ",
+ "          ⠉▀⠶▄⣀ █ ⣀▄⠶▀⠉          ",
+ "              ⠉▀▀▀⠉              ", -- 12
+ "  metamachine virtual computing  ",
+ " Press F3 to enter boot manager. ",
+ "                                 "
+}
+local gpuA = component.list("gpu", true)()
+local screenA = component.list("screen", true)()
+local bootManager = false
+if gpuA and screenA then
+ local gpuP = component.proxy(gpuA)
+ gpuP.bind(screenA)
+ gpuP.setResolution(33, 15)
+ local targetUptime = computer.uptime()
+ for j = 0, 10 do
+  targetUptime = targetUptime + 0.1
+  local ej = j
+  if j > 5 then
+   -- 5 * 50 = 250
+   ej = 5 - (j - 5)
+   ej = ej * 50
+  elseif j == 5 then
+   targetUptime = targetUptime + 4
+   ej = 255
+  else
+   ej = ej * 50
+  end
+  gpuP.setForeground(ej + (ej * 0x100) + (ej * 0x10000))
+  gpuP.setBackground(0)
+  for i = 1, #logo do
+   gpuP.set(1, i, logo[i])
+  end
+  while true do
+   local tl = targetUptime - computer.uptime()
+   if tl <= 0.01 then break end
+   local v = {computer.pullSignal(tl)}
+   if v[1] == "key_down" then
+    if v[4] == 61 then
+     -- boot manager
+     bootManager = true
+     logo[14] = "  - Entering boot manager now. -  "
+     break
+    end
+   end
+  end
+ end
+ gpuP.setForeground(0xFFFFFF)
+ gpuP.setBackground(0)
+ local selY = 1
+ while bootManager do
+  gpuP.fill(1, 1, 33, 15, " ")
+  local y = 1
+  local mapping = {}
   for a in component.list("filesystem", true) do
- local dat = component.proxy(a)
+   local pfx = " "
+   if selY == y then
+    pfx = ">"
+   end
+   if computer.getBootAddress() == a then
+    pfx = pfx .. "*"
+   else
+    pfx = pfx .. " "
+   end
+   mapping[y] = a
+   gpuP.set(1, y, pfx .. a .. ":" .. (component.invoke(a, "getLabel") or ""))
+   y = y + 1
+  end
+  while true do
+   local v = {computer.pullSignal()}
+   if v[1] == "key_down" then
+    if v[4] == 200 then
+     selY = math.max(1, selY - 1)
+     break
+    elseif v[4] == 208 then
+     selY = math.min(selY + 1, y - 1)
+     break
+    elseif v[3] == 13 then
+     computer.setBootAddress(mapping[selY] or "")
+     bootManager = nil
+     break
+    end
+   end
+  end
+ end
+end
+local lr = "(no inits)"
+local function boot(fsa)
+ local dat = component.proxy(fsa)
  local fh = dat.open("/init.lua", "rb")
  if fh then
   local ttl = ""
@@ -10,17 +119,23 @@ for a in component.list("filesystem", true) do
    if not chk then break end
    ttl = ttl .. chk
   end
-  computer.getBootAddress = function () return a end
-  computer.setBootAddress = function () end
   local fn, r = load(ttl, "=init.lua", "t")
   if not fn then
    lr = r
    dat.close(fh)
   else
    dat.close(fh)
-   return fn()
+   computer.setBootAddress(fsa)
+   fn()
+   error("Returned from init")
   end
  end
 end
+if component.type(computer.getBootAddress()) then
+ boot(computer.getBootAddress())
+end
+for a in component.list("filesystem", true) do
+ boot(a)
+end
 error("No available operating systems. " .. lr)