diff --git a/src/lua/core/textgpu.lua b/src/lua/core/textgpu.lua
index 14d7013..7418943 100644
--- a/src/lua/core/textgpu.lua
+++ b/src/lua/core/textgpu.lua
@@ -45,6 +45,10 @@ local fg = 256
 local bg = 1
 local w, h = 1, 1
 
+local function rgb(i)
+  return i>>16&0xFF, i>>8&0xFF, i&0xFF
+end
+
 local unsub, fullRefresh
 local function set(x, y, text, f, b, safe)
   if x > w or x < 1 or y > h or y < 1 or not tbuffer[y] then
@@ -69,7 +73,8 @@ local function set(x, y, text, f, b, safe)
       f .. fbuffer[y]:sub(x + len)
   else
     local F = mapping[f]
-    write("\27[38;2;", F&0xFF0000>>16, ";", F&0x00FF00>>8, ";", F&0x0000FF, "m")
+    local r, g, _b = rgb(F)
+    write("\27[38;2;", r, ";", g, ";", _b, "m")
     fbuffer[y] = fbuffer[y]:sub(1, x - 1) ..
      string.rep(string.char(f - 1), len) .. fbuffer[y]:sub(x + len)
   end
@@ -78,7 +83,8 @@ local function set(x, y, text, f, b, safe)
       b .. bbuffer[y]:sub(x + len)
   else
     local B = mapping[b]
-    write("\27[48;2;", B&0xFF0000>>16, ";", B&0x00FF00>>8, ";", B&0x0000FF, "m")
+    local r, g, _b = rgb(B)
+    write("\27[48;2;", r, ";", g, ";", _b, "m")
     bbuffer[y] = bbuffer[y]:sub(1, x - 1) ..
       string.rep(string.char(b - 1), len) .. bbuffer[y]:sub(x + len)
   end
@@ -99,13 +105,13 @@ fullRefresh = function()
         pb = bc
         local B = mapping[bc:byte() + 1]
         str = str .. string.format("\27[48;2;%d;%d;%dm",
-          B&0xFF0000>>16, B&0x00FF00>>8, B&0x0000FF)
+          rgb(B))
       end
       if fc ~= pf then
         pf = fc
         local F = mapping[fc:byte() + 1]
         str = str .. string.format("\27[38;2;%d;%d;%dm",
-          F&0xFF0000>>16, F&0x00FF00>>8, F&0x0000FF)
+          rgb(F))
       end
       str = str .. tc
       return str
@@ -276,7 +282,6 @@ function textgpu.start()
     for i=start, stop, step do
       local str, fstr, bstr = get(x, i, W, true)
       if str and fstr and bstr then
-        lprint("GPU_COPY: " .. str .. " FROM " .. i .. " TO " .. (i + yd))
         set(x + xd, i + yd, str, fstr, bstr, true)
       end
     end