Crescent

build.lua

@@ -144,6 +144,7 @@ local function struct(tbl)
 	end})
 end
 
+
 local velx_spec = struct {
 	endian = "<",
 	{magic="c5"},
@@ -151,6 +152,7 @@ local velx_spec = struct {
 	{compression="B"},
 	{lver="B"},
 	{os="B"},
+	{arctype="c4"},
 	{psize="I3"},
 	{lsize="I3"},
 	{ssize="I3"},
@@ -160,9 +162,9 @@ local velx_spec = struct {
 -- This builds Tsuki into a VELX executable.
 print("Compiling kernel...")
 local h = io.popen("luacomp ksrc/init.lua", "r")
-os.execute("luacomp ksrc/init.lua -O debug.lua")
 local krnl = h:read("*a")
 h:close()
+os.execute("luacomp ksrc/init.lua -O debug.lua 2>/dev/null")
 print("Generating docs and stripping comments...")
 os.execute("mkdir .docs")
 h = io.popen("lua utils/gendocs.lua .docs 2>.ktmp", "w")
@@ -187,7 +189,8 @@ local header = velx_spec({
 	psize = #data,
 	lsize=0,
 	ssize=0,
-	rsize=#arc
+	rsize=#arc,
+	arctype="tsar"
 })
 h:write(header)
 h:write(data)

extras/crescent/init.lua

@@ -0,0 +1,48 @@
+local version = "1.0"
+
+local gpu = component.list("gpu")()
+local w, h
+local screen = component.list('screen')()
+for address in component.list('screen') do
+    if #component.invoke(address, 'getKeyboards') > 0 then
+        screen = address
+    end
+end
+local cls = function()end
+if gpu and screen then
+    component.invoke(gpu, "bind", screen)
+    w, h = component.invoke(gpu, "getResolution")
+    component.invoke(gpu, "setResolution", w, h)
+    component.invoke(gpu, "setBackground", 0x000000)
+    component.invoke(gpu, "setForeground", 0xFFFFFF)
+    component.invoke(gpu, "fill", 1, 1, w, h, " ")
+    cls = function()component.invoke(gpu,"fill", 1, 1, w, h, " ")end
+end
+local y = 1
+local function status(msg)
+    if gpu and screen then
+        component.invoke(gpu, "set", 1, y, msg)
+        if y == h then
+            component.invoke(gpu, "copy", 1, 2, w, h - 1, 0, -1)
+            component.invoke(gpu, "fill", 1, h, w, 1, " ")
+        else
+            y = y + 1
+        end
+    end
+end
+
+local loadspin = 1
+local spins = {
+	"-", "\\", "|", "/"
+}
+
+local function lsc()
+	loadspin = (loadspin % 4) + 1
+	return spins[loadspin]
+end
+
+--#include "crescent/velx.lua"
+--#include "crescent/tsar.lua"
+--#include "crescent/loader.lua"
+
+status("crescent loader v"..version)

extras/crescent/loader.lua

@@ -0,0 +1,6 @@
+function boot_kernel(...)
+	local knl, env = load_velx(computer.getBootAddress(), "kernel.velx")
+	local iramfs = load_tsar(computer.getBootAddress(), "initramfs.tsar")
+	env._ARCHIVE = iramfs
+	knl(...)
+end

extras/crescent/velx.lua

@@ -0,0 +1,39 @@
+local function lzss_decompress(a)local b,c,d,e,j,i,h,g=1,'',''while b<=#a do
+e=c.byte(a,b)b=b+1
+for k=0,7 do h=c.sub
+g=h(a,b,b)if e>>k&1<1 and b<#a then
+i=c.unpack('>I2',a,b)j=1+(i>>4)g=h(d,j,j+(i&15)+2)b=b+1
+end
+b=b+1
+c=c..g
+d=h(d..g,-4^6)end
+end
+return c end
+
+local function load_velx(addr, path)
+	status("loading kernel... "..lsc())
+	local fs = component.proxy(addr)
+	local h = fs.open(path)
+	local magic, fver, comp, lver, osid, psize = string.unpack("<c5BBBBxxxxI3xxxxxxxxxx", fs.read(h, 13))
+	if (magic ~= "\27VelX" or fver ~= 1 or osid ~= 127) then
+		return
+	end
+	local rdat = psize
+	local dat = ""
+	local buf = ""
+	repeat
+		buf = fs.read(h, rdat)
+		if (buf) then
+			dat = dat .. buf
+		end
+		rdat = psize - #dat
+		y = y - 1
+		status("loading kernel... "..lsc())
+	until rdat == 0 or not buf or buf == ""
+	y = y - 1
+	status("loading kernel...  ")
+	if (comp == 1) then
+		status("decompressing kernel...")
+		buf = lzss_decompress(buf)
+	end
+end

extras/velxboot/init.lua

@@ -1,5 +1,35 @@
+local function lzss_decompress(a)local b,c,d,e,j,i,h,g=1,'',''while b<=#a do
+e=c.byte(a,b)b=b+1
+for k=0,7 do h=c.sub
+g=h(a,b,b)if e>>k&1<1 and b<#a then
+i=c.unpack('>I2',a,b)j=1+(i>>4)g=h(d,j,j+(i&15)+2)b=b+1
+end
+b=b+1
+c=c..g
+d=h(d..g,-4^6)end
+end
+return c end
 local function boot_velx(addr, path)
-
+	local fs = component.proxy(addr)
+	local h = fs.open(path)
+	local magic, fver, comp, lver, osid, psize = string.unpack("<c5BBBBxxxxI3xxxxxxxxxx", fs.read(h, 13))
+	if (magic ~= "\27VelX" or fver ~= 1 or osid ~= 127) then
+		return
+	end
+	local rdat = psize
+	local dat = ""
+	local buf = ""
+	repeat
+		buf = fs.read(h, rdat)
+		if (buf) then
+			dat = dat .. buf
+		end
+		rdat = psize - #dat
+	until rdat == 0 or not buf or buf == ""
+	if (comp == 1) then
+		buf = lzss_decompress(buf)
+	end
+	assert(load(buf, "="..path))()
 end
 
 local eeprom = component.proxy(component.list("eeprom")())

ksrc/buffer.lua

@@ -0,0 +1,5 @@
+local buffer = {}
+
+local function create_buffer()
+
+end

ksrc/exec.lua

@@ -10,6 +10,4 @@ end)
 -- Executable loading process:
 -- - Link
 -- - Load
--- - Execute
+-- - Execute
-
-if ()

ksrc/execs/velx_spec/velxspec.lua

@@ -5,6 +5,7 @@ local velx_spec = struct {
 	{compression="B"},
 	{lver="B"},
 	{os="B"},
+	{arctype="c4"},
 	{psize="I3"},
 	{lsize="I3"},
 	{ssize="I3"},

ksrc/init.lua

@@ -6,6 +6,8 @@
 --#include "ksrc/fs/foxfs/init.lua"
 --#include "ksrc/tty.lua"
 --#include "ksrc/biosfixes.lua"
+--#include "ksrc/buffer.lua"
+--#include "ksrc/kio.lua"
 
 -- Mount the rootfs
 vfs.mount()

ksrc/kio.lua

@@ -0,0 +1,8 @@
+---@module kio "Kernel I/O"
+local kio = {}
+
+---@func create_buffer
+---@arg blocking boolean "True if read calls to a buffer that doesn't contain enough data block."
+---@arg pid integer "This is set to the PID of the process which handles the buffers."
+---@return table "The buffer for use anywhere."
+kio.create_buffer = create_buffer

utils/gendocs.lua

@@ -112,6 +112,7 @@ for line in io.stdin:lines() do
 			if (cdoc) then
 				if (cfunc) then
 					cdoc.methods[#cdoc.methods+1] = cfunc
+					cfunc = nil
 				end
 				docs[#docs+1] = cdoc
 			end
@@ -126,6 +127,7 @@ for line in io.stdin:lines() do
 			if (cdoc) then
 				if (cfunc) then
 					cdoc.methods[#cdoc.methods+1] = cfunc
+					cfunc = nil
 				end
 				docs[#docs+1] = cdoc
 			end

utils/velxdump.lua

@@ -151,6 +151,7 @@ local velx_spec = struct {
 	{compression="B"},
 	{lver="B"},
 	{os="B"},
+	{arctype="c4"},
 	{psize="I3"},
 	{lsize="I3"},
 	{ssize="I3"},
@@ -167,6 +168,13 @@ local os = {
 	[0x7F] = "BIOS",
 }
 
+local commands = {
+	["cpio"] = "cpio -t",
+	["tar"] = "tar -t",
+	["tsar"] = "tsar -t",
+	["zip"] = "jar -t"
+}
+
 local f = io.open(arg[1], "rb")
 local header = velx_spec(f:read(#velx_spec))
 local program = f:read(header.psize)
@@ -179,13 +187,15 @@ io.stdout:write(string.format([[File Version: %d
 Compression: %s
 Type: %s
 OS: %s
-Lua Version: %s]],
+Lua Version: %s
+Archive type: %s]],
 header.fver,
 compression[header.compression] or "Unknown",
 (((header.os & 0x80) > 0) and "Library") or "Executable",
 os[header.os & 0x7F] or "Unknown",
-lver),"\n")
+lver,
-local h = io.popen("tsar -t", "w")
+header.arctype:gsub("\0", "")),"\n")
+local h = io.popen(commands[header.arctype:gsub("\0", "")], "w")
 h:write(archive)
 h:close()
 if (header.compression == 1) then