e

AceVM/computers/0/bios.lua

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+local computer = component.getFirst("computer")
+local screen=component.getFirst("screen")
+
+if not screen then
+    local function e(...)end
+    screen = {
+        print=e,
+        printInline=e,
+        clear=e
+    }
+end
+
+local ok,err = xpcall(function()
+    -- Init components
+    _G._DEVELOPMENT=true
+    _G.component=component
+
+    local printed=""
+    local print=function(text)
+        printed=printed..text.."\n"
+        screen.print(text)
+    end
+
+    -- Get CFG
+    local biosCfg = {}
+    local i=1
+    while i<=256 do
+        biosCfg[i]=computer.getData(i) or ""
+        i=i+1
+    end
+    computer.beep(800,0.2)
+    -- Difine functions
+    local function copy(tabl)
+        local out = {}
+        for i,v in pairs(tabl) do
+            local t=type(v)
+            if t=="table" then
+                if i == "_G" then
+                    out._G=out
+                else
+                    out[i]=copy(v)
+                end
+            else
+                out[i]=v
+            end
+        end
+        return out
+    end
+
+    local function save(table)
+        while i<=256 do
+            computer.setData(i, table[i] or nil)
+            i=i+1
+        end
+    end
+
+    local function hasKey(tabl, query)
+        for i,v in pairs(tabl) do
+            if i==query then
+                return true
+            end
+        end
+        return false
+    end
+
+    -- Start boot seq
+    local disks={}
+    for i,v in component.list() do
+        if i=="disk" then
+            disks[v.id]=v
+        end
+    end
+
+    local idx = 1
+    local bootOption=1
+    while true do
+        if biosCfg[idx]=="$EOF" then break end
+        print("Atempting boot option "..tostring(bootOption).." labled \""..biosCfg[idx].."\".")
+        bootOption=bootOption+1
+        local drive={}
+        idx=idx+1
+        if not hasKey(disks,biosCfg[idx]) then
+            print("└─ Drive not found.")
+            print(" ")
+            idx=idx+3
+            goto invalid_boot
+        else
+            drive=disks[biosCfg[idx] ]
+            print("├─ Drive found with id of \""..drive.id.."\"")
+        end
+        idx=idx+1
+        local path
+        local code
+        if drive.type=="udd" then
+            print("├─ Drive is Unmanaged, looking for MBR...")
+            sleep(0.02)
+            print("├─ Reading MBR...")
+            local tmp = drive.readBytes(0,512)
+            print("├─ MBR found, compiling bootloader...")
+            code = table.concat(tmp)
+        else
+            if not drive:fileExists(biosCfg[idx]) then
+                print("└─ Path not found.")
+                print(" ")
+                idx=idx+2
+                goto invalid_boot
+            else
+                print("├─ Kernel exists at path \""..biosCfg[idx].."\"")
+                path=biosCfg[idx]
+            end
+            code = drive:open(path).read()
+        end
+        idx=idx+1
+        local _VG=copy(_G)
+        _VG._G=_VG
+        print("├─ Created virtual ENV.")
+        local _,func = pcall(load,code,drive.id.." | "..path,nil,_VG)
+        if not func then
+            print("└─ Compilation failure.")
+            print(" ")
+            idx=idx+1
+            goto invalid_boot
+        else
+            print("├─ Executing.")
+        end
+        local cmd=biosCfg[idx] or ""
+        idx=idx+1
+        local biosData = {}
+        biosData.bootDrive=drive
+        biosData.term=screen
+        screen.clear()
+        local ok, err = xpcall(func, debug.traceback, biosData, cmd)
+        screen.clear()
+        screen.print(printed)
+        if not ok then
+            print("└─ OS exited with error: "..err)
+            print(" ")
+        else
+            print("└─ OS exited.")
+            print(" ")
+        end
+        screen.print("Press enter to continue...")
+        while true do
+            local event = {computer.getMachineEvent()}
+            if event[1] == "keyTyped" then
+                if event[3] == "\n" then
+                    break
+                end
+            end
+        end
+        ::invalid_boot::
+    end
+    computer.beep(400,0.4)
+    print("No boot options available")
+    screen.print("Press enter to continue...")
+    while true do
+        local event = {computer.getMachineEvent()}
+        if event[1] == "keyTyped" then
+            if event[3] == "\n" then
+                computer.shutdown()
+            end
+        end
+    end
+end, debug.traceback)
+if not ok then
+    screen.clear()
+    screen.print("BIOS PANIC: "..err)
+    computer.beep(800,0.2)
+    sleep(0.02)
+    computer.beep(800,0.2)
+    sleep(0.02)
+    computer.beep(800,0.2)
+    sleep(0.02)
+    screen.print("Press enter to continue...")
+    while true do
+        local event = {computer.getMachineEvent()}
+        if event[1] == "keyTyped" then
+            if event[3] == "\n" then
+                computer.shutdown()
+            end
+        end
+    end
+end

AceVM/computers/0/nvram.dat

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+HyperionOS
+disk_1
+/boot/Hyprkrnl.sys
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