diff --git a/examples/curlywas/font_palette.uw8 b/examples/curlywas/font_palette.cwa
similarity index 100%
rename from examples/curlywas/font_palette.uw8
rename to examples/curlywas/font_palette.cwa
diff --git a/platform/bin/platform.uw8 b/platform/bin/platform.uw8
index ae99f36..550df60 100644
Binary files a/platform/bin/platform.uw8 and b/platform/bin/platform.uw8 differ
diff --git a/platform/src/platform.cwa b/platform/src/platform.cwa
index 2b600cf..a7eb506 100644
--- a/platform/src/platform.cwa
+++ b/platform/src/platform.cwa
@@ -230,6 +230,13 @@ global mut bgColor = 0;
 global mut graphicsText = 0;
 
 export fn printChar(char: i32) {
+    loop chars {
+        printSingleChar(char & 255);
+        branch_if (char := char #>> 8): chars;
+    }
+}
+
+fn printSingleChar(char: i32) {
     if char == 4 | char == 5 {
         graphicsText = char == 5;
         return;
@@ -238,6 +245,15 @@ export fn printChar(char: i32) {
     if char == 10 | (!graphicsText & textCursorX >= 320) {
         textCursorX = 0;
         textCursorY = textCursorY + 8;
+        if !graphicsText & textCursorY >= 240 {
+            textCursorY = 240 - 8;
+            let i: i32;
+            loop scroll_copy {
+                i!120 = i!(120 + 320 * 8);
+                branch_if (i := i + 4) < 320 * (240 - 8): scroll_copy;
+            }
+            rectangle(0 as f32, (240 - 8) as f32, 320 as f32, 8 as f32, bgColor);
+        }
         return;
     }
 
diff --git a/site/content/_index.md b/site/content/_index.md
index c793f22..ccaf5b8 100644
--- a/site/content/_index.md
+++ b/site/content/_index.md
@@ -6,6 +6,7 @@
 * [v0.1pre1](v0.1pre1)
 * [v0.1pre2](v0.1pre2)
 * [v0.1pre3](v0.1pre3)
+* [v0.1pre4](v0.1pre4)
 
 ## Spec
 
@@ -40,6 +41,7 @@ Other imports provided by the platform, also all in module `env`:
 * `fn hline(left: i32, right: i32, y: i32, color: i32)`
 * `fn rectangle(x1: f32, y1: f32, x2: f32, y2: f32, color: i32)`
 * `fn circle(cx: f32, cy: f32, radius: f32, color: i32)`
+* `fn line(x1: f32, y1: f32, x2: f32, y2: f32, color: i32)`
 
 * `fn time() -> f32`
 * `fn isButtonPressed(btn: i32) -> i32`
@@ -48,6 +50,9 @@ Other imports provided by the platform, also all in module `env`:
 * `fn printChar(char: i32)`
 * `fn printString(ptr: i32)`
 * `fn printInt(num: i32)`
+* `fn setTextColor(color: i32)`
+* `fn setBackgroundColor(color: i32)`
+* `fn setCursorPosition(x: i32, y: i32)`
 
 ### Memory map
 
@@ -85,7 +90,7 @@ types with up to 5 parameters (i32 or f32) where the
 `f32` parameters always preceed the `i32` parameters.
 Then it includes all imports that MicroW8 provides,
 a function section with a single function of type
-`(i32) -> void` and an export section that exports
+`() -> void` and an export section that exports
 the first function in the file under the name `upd`.
 
 #### Format version `02`:
@@ -111,9 +116,10 @@ Writing code for MicroW8 in C, Rust, AssemblyScript etc. should absolutely
 possible but no examples are provided, yet.
 
 ## Examples
-* [Skip Ahead](v0.1pre3#Agj9nQYWw+yYP6xi7SUL2urlNtvh2dOZFuYL4PUxAUz5qqATDey0JsAVat2VQKEOyXK1bE+3WiFK0GGhdi4VAd8Tlf3YuU7xfvvBwN4oNuIoY29jbbuEnEnPZFjC4ym9L2QDUmig+RsF++FubWcyqOt7CAFGNEaAiMISCIM43bfPQriE6sD3orstkMjH3LPOqeuUPpitgzaIsAf860CYHlrAG2t5CSjRGobcPLJ+CSeYjzZSLYs7+u2xpthsfoIvBnk1+xxwEWYfZOJ3Madfo5BME5nceVCQVOEBMCTLSE+xVCkyelOW) (231 bytes): A port of my [TIC-80 256byte game](http://tic80.com/play?cart=1735) from LoveByte'21
-* [OhNoAnotherTunnel](v0.1pre3#Apr9u4e6Rsy7tRABjq4o7dCGPLQR9dVTSGK9FWXemB7tybsZHT+TxtfHlarRbcekGcg7qZY/eK6/VVCp9ceNBXlh4v0QGS63LTzfEjb8XC4jg5KifbYBodSIS0DPVjwq32PbgjL2+C+QOCx6ZxqRYP0KQpcTxuBUKx1NXVM2EV4l0rEWBQW9SjLcbURKHYaRLcI4FOcLOfASFiQ4wFWgEBA0VD6hGdemN0tPYp9BfUaN) (177 bytes): A port of my [entry](http://tic80.com/play?cart=1871) in the Outline'21 bytebattle final
-* [Technotunnel](v0.1pre3#AkL/tETJ+XRrvcB8gD9brftZ26zjwEsiATnAd+szCtw3Haq41srEMFO8aDS71c2CX8W87RQ9EY3V+YuTn/2CPRfn6CpgxMHUnIxOEWhVDRULXeYGP70dTiL8tYLAc8LrBWay9h8jCX/4Jbb39XVnISlZNd7In4Mts9LvSkSIz/E0sBfhjwp65aeoSU8BNFZpyKlxU+u5DdBtuxx3bFE=) (158 bytes): A port of my [entry](https://tic80.com/play?cart=1873) in the Outline'21 bytebattle quater final
+* [Skip Ahead](v0.1pre4#AiP94km33q5hBFbBcKl2W1ZMY67wHByUz15/qRHIr71Dvq8bTVux/DXZzSTKU5MufRXxnGEn6mOul4dil/5WLT1Y+Y/4TGd1E3U4rQaxlpcKObxc5YLdr4xo6jyBND96a569LoECv6Q4EIqxJi+3QPE21r/++js41XsBLr44X/O2XpP3kHQva3B8o6duD5WkLCf7PhsxjTBeND1ADIaJe05JCrBim18RPY9VYFmltqQ9gVzbxE/ZpojR/GJ4aCbx0hRn73RPhpA7Cd4jk0AVSOeRx+7kuHrLzpaeqeYWK5pYd/4Rv+8=) (230 bytes): A port of my [TIC-80 256byte game](http://tic80.com/play?cart=1735) from LoveByte'21
+* [OhNoAnotherTunnel](v0.1pre4#Ag95rdCB5Ww5NofyQaKF4P1mrNRso4azgiem4hK99Gh8OMzSpFq3NsNDo7O7pqln10D11l9uXr/ritw7OEzKwbEfCdvaRnS2Z0Kz0iDEZt/gIqOdvFmxsL1MjPQ4XInPbUJpQUonhQq29oP2omFabnQxn0bzoK7mZjcwc5GetHG+hGajkJcRr8oOnjfCol8RD+ha33GYtPnut+GLe4ktzf5UxZwGs6oT9qqC61lRDakN) (177 bytes): A port of my [entry](http://tic80.com/play?cart=1871) in the Outline'21 bytebattle final
+* [Technotunnel](v0.1pre4#AqL8HeK1M9dn2nWNIF5vaq/Vh64pMt5nJIFoFKpBMPUsGtDtpqjo1JbT9LzPhAxCqJ7Yh4TA6oTGd4xhLowf+cWZMY73+7AZmfXJJsBi4cej/hH+4wlAgxFIrnOYnr/18IpnZbsHf0eGm1BhahX74+cVR0TRmNQmYC7GhCNS3mv/3MJn74lCj7t28aBJPjEZhP9fGXdG2u5Egh/Tjdg=) (158 bytes): A port of my [entry](https://tic80.com/play?cart=1873) in the Outline'21 bytebattle quater final
+* [Font & Palette](v0.1pre4#AgKaeeOuwg5gCKvFIeiitEwMpUI2rymEcu+DDB1vMu9uBoufvUxIr4Y5p4Jj2ukoNO4PE7QS5cN1ZyDMCRfSzYIGZxKlN2J6NKEWK7KVPk9wVUgn1Ip+hsMinWgEO8ETKfPuHoIa4kjI+ULFOMad7vd3rt/lh1Vy9w+R2MXG/7T61d3c7C6KY+eQNS0eW3ys4iU8R6SycuWZuuZ2Sg3Qxp826s+Kt+2qBojpzNOSoyFqyrVyYMTKEkSl0BZOj59Cs1hPm5bq0F1MmVhGAzMhW9V4YeAe): Just a simple viewer for the default font and palette.
 * [Technotunnel B/W](v0.1pre2#AQrDAQHAAQIBfwp9A0AgAUEAsiABQcACb7JDmhkgQ5MiBCAEIASUIAFBwAJtQfgAa7IiBSAFlJKRIgaVIgcgByAAskHQD7KVIgIQAEPNzEw/lCIDlCAHIAeUIAOUIAOUQQGykiADIAOUk5GSIgiUIAOTQQqylCACkiIJqCAFIAaVIAiUQQqylCACkiIKqHMgCEEyspQgBpUiCyACkkEUspSocUEFcbJBArIgC5OUQRaylJeoOgB4IAFBAWoiAUGA2ARIDQALCw==) (199 bytes uncompressed): A port of my [entry](https://tic80.com/play?cart=1873) in the Outline'21 bytebattle quater final (older MicroW8 version with monochrome palette)
 * [XorScroll](v0.1pre2#AQovAS0BAX8DQCABIAFBwAJvIABBCm1qIAFBwAJtczoAeCABQQFqIgFBgNgESA0ACws=) (50 bytes uncompressed): A simple scrolling XOR pattern. Fun fact: This is the pre-loaded effect when entering a bytebattle.
 * [CircleWorm](v0.1pre2#AQp7AXkCAX8CfUEgEA0DQCABskEEspUiAkECspUgALJBiCeylSIDQQWylJIQAEEBspJBoAGylCACQQOylSADQQSylJIQAEEBspJB+ACylCADQRGylCACQQKylJIQAEECspJBELKUIAFBAmxBP2oQEiABQQFqIgFBP0gNAAsL) (126 bytes uncompressed): Just a test for the circle fill function.
\ No newline at end of file
diff --git a/site/static/v0.1pre4/index.html b/site/static/v0.1pre4/index.html
new file mode 100644
index 0000000..2fda0e6
--- /dev/null
+++ b/site/static/v0.1pre4/index.html
@@ -0,0 +1 @@
+<!doctype html><html><head><meta charset="utf8"><title>MicroW8</title><link href="https://fonts.googleapis.com/css2?family=Josefin+Sans:wght@500&display=swap" rel="stylesheet"><style>body,canvas,html{margin:0;padding:0}html{background-color:#202024;color:#808070;font-family:Josefin Sans,Verdana,Arial Black,sans-serif}body,html{height:100%}body{display:grid;grid-template-rows:1fr 0fr}#centered{align-self:center;justify-self:center}.footer{color:#202420}a{color:#303630}a:hover{color:#405040}#screen{background-color:#202428;border:4px solid #303040;box-shadow:5px 5px 20px #000;cursor:none;height:240px;image-rendering:pixelated;width:320px}#message,#screen{margin-bottom:8px}.error{color:#e04030}button{background-color:#303440;border:1px solid #404040;border-radius:4px;color:#808070;font-family:inherit;padding:4px}button:hover{background-color:#202010}button:active{background-color:#504450}@media (min-width:680px) and (min-height:560px){#screen{height:480px;width:640px}}@media (min-width:1000px) and (min-height:800px){#screen{height:720px;width:960px}}</style></head><body> <div id="centered"> <canvas id="screen" width="320" height="240"></canvas> <div id="message"></div> <button id="cartButton">Load cart...</button> </div> <div id="footer"> <a href="http://unlicense.org/" ref="license">Unlicense</a> </div> </body><script type="module">function A(A){return A&&A.__esModule?A.default:A}function e(A,e){let t=A?`${A} bytes`:"Insert cart";e&&(t+=` - <span class="error">${e.replaceAll("<","&lt;")}</span>`),document.getElementById("message").innerHTML=t}let t,B,a=document.getElementById("screen"),n=a.getContext("2d"),r=n.createImageData(320,240),o=A=>new Uint8Array(A),i=A=>new Uint32Array(A),s=0,Q=A=>{let 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f(A("data:;base64,Ao%2F%2Bdbd8plwjoXZbwwA7nh6GHRI%2B422eTxmDJFti%2BI5UDTvwu5kCvc4xQ9Jb%2FwOW3z1vJ%2FTGakG8XecB0dCEqpx6dlihCpvqcP4jrQLQGjLXkt74PfO2PxPzFvYoljy%2F1NjAI1YUClK%2FagQ%2FPwUEBfBX8ZsE5k2EKr4E%2Fovvk845eqBuSZJKnBO3Ke6YZpX%2BKhSh8sZ%2F3YsIKD7SVl0%2Fh60U%2B2mzhrSyV1tEsB%2FMY9Cr25ei1R4nHIvjmjp59Suh9ewrL%2ByOntXfRJuk7SjbwZIqotkf8JFOt%2Fwk2VNL%2Bl3ewl9ANsRrU93nh4V3MSD6j60rEsza8i7CEBQ%2BtVwhfS0zrg1RrKSmSnA%2FCzCf47BmMsmVZRz%2FcRCdR4%2BkM%2F92sC3br7FLZWNjV10YthZfRWLpJHirK3ihWcPvIFxlIj0F8w2O1jkDUil1%2F9VMNJFX3U2G3GOKmu3QO313OZslCSYdX6ES9QPUZEY92FhD05b5%2Fhj4OOb5YTrWw5kt8n2Oo2K%2BzDyWcGm4kQf%2Fpjx0N0cKwOz2JwHQFgx%2BPqrxQIhdLg3%2BqUyCVmO5o2e2K3TbsFnPeDiJvbk9g47KH7uimldXD6u4gwW0Bl6nLGac7MuiSZ0Yy3%2FDqZenTS0jZffB%2BxYYA6C7xJT7aMHci1%2FcE9O36%2FLtZI2Nr7naQNCIYSEsD812Q2C1L7akOYFQOq51iQAoPwtXrrZXbLtAbRXdyAAMqmrIHaceUtesji0HtAl1E27O7QmUOixlsKmRzaZmTNfhccvskspgYw2IbymgG1RjXmISdkGbY%2B65V7LcUYeqVG2lc3G7A1LngO1KkZP0VQZKl1RTKUMldTJd0mbqFAX1ZXiy65sYPoHGYpc0mWq901vadaeOx7wEsPNqXCaFEF%2Fb7wvE8MKcmCodXGbi08YzZvOasYbA%2FurxmJPxADC5yTDiOpyiGjUcCbRH87iq%2BBrrzpjxd0LzvL%2BXjl0qKz7mLL112ZMyr5Ow2DKLQX1qqMoHZK2MfHw3vnAMk8is%2F5anHbaW856JaKe0DR6hIQ%2FTQ%2BgnHcRmxdtS65IVhSxk5UyopljN18RrsEorm1T5YH%2BdyeXK6%2B1frptPEOv6UUR1%2FJ2OiYb%2FsyHePfMTEAMSFhO9Y13AtSkfG%2BpxbcoUuoxYrjZpbXq1njMGzLJfYKETWRRU3BKOF%2BR5fMqlXRtYcX77izpmdvXTDfQvBLUcaPqI0KElPazG827jvB0Rpt40Z%2FPbtJwukhP5wi8vY4zv4TZ95vb6o4inOs6U9uv2MdrfRvesuJ%2F8SH7JrVc6dkgADDsP%2Bq1L8qXRq%2FSwgzNMX9KZmbQzP1vAe1OwelgVnJ6nVdcN0WUnP%2FPIMpg3Li%2BYR%2FhEptphOqedAXs%2Bh1Lrua9Hf0jRnMdADqqmHQMGZ8Xl8%2F%2BJesKSHcVMDEzIRvhqzr8kUIElR%2FY1z1B78a4yfsRstzRCziTGa5iF8ZzS18DjAtRnOIgCVO8jQFdH386gIuzn9prI3Zafgx7dcR7AYl4o7hFnS96DW8hruaaQSo5sBB%2FJaivV%2BiqsVitTyYp2FDcKPY0%2BnTDLtGQEb%2BIwFgu5tVGIppjhlsuwRaUsrDJgqSwH%2FVM3I1ZgAutQX1SPCc2kwKjL%2FwpDka9FB1JivGBFCQIXtn4XCbozkH2DkljN4xft8Msa%2BYgNZ4exXt0E8Os%2FfwrqvWatAeiqYjnxNsVD7DPBHOxVphxPu8OfVo9gW3DWOuZUpZ5jeMxsrMHOCS63pM63t2VAOuxjI9dkRONwpj9IvtS36GgxQx%2BGSrR10FgEVaVDCFxD4brGAzKqzi5HlN2lwzfE963rkfOpJv2ZkaXXjCB2Vu%2FG0oqKFcBSRmNPfETw9zezMVetj0BakPeo3wwK8IsrJ5%2BVKJJMsf32GrWGIPRCjqIuTrzbv5mG4nNZf3BLrohhg%2B3ESt2Vpzi%2F5%2F8NrV9C%2FwfD05%2BZoc5WrysQKUsLnWhMQwKGw%2FT8YiOXzSau%2B8GvbIRG5VGhwGkLtkj9Vxx%2B7zjnIKgPALS42WOfgNzx%2FfY2qoeok%2B6TTeTvD3ottoPIqxZzZjI2BogoOeAlFUNZxpjU53yLTQY6cbm7HmmQKpszXdw42RXTsJGJlyAiKuOXDtjVk%2FZfjF9NgN1OSMN%2BPc8ozFE5l3EWdnnvIufzcazc%2Bs7BJ0kvOjcvqYGeKl9C5LVLImEE4E2%2FpLdl7AA60d8l3uJ5XZZBBJY7BusfO%2FPfd9Jkimkk4Rmj2e9tAtLFJPuP%2BqfVvUZaxplg4dU3PtU7NIAeZlJLgG63ZfW%2FW1gwEOVynABh%2F1yPCXqjc8t7LNLtVbGo757g%2FvLpJg2By7O6HCI6RHazFrRJm64nFj08TcgtgV%2B5t1WpMmNtly3ZQt%2FfUWa%2BR45t%2FjuGPuc9zShD13DwZYoLquVvCT8POtrjNoKpdsJZc1jCrzzvBAqjKqb8bnNHDJrkl7P5oK8iQ2tr6b92h4aWlVi02U2rQbyfDNac5sK9rnbjGnJ%2F1pfhGYgL24kSSC8n520Qhd90WWA79pfxeWukm5ZDcQ5ADC4LlwMSCfhK3wXPcHJgmVabxy8kYEek2eV5Oz%2F5aqe%2BRnnho%2BbK785AS%2Fz9lYZw2iClVuLrka%2BZuK2midc75jn8J1f2Kr74jclmoVqDXEL8II88LJ6PlCq3S7htPJl3HTVc6%2BvWiPBF9keubsHbXZ7LaIOvgoBeOgjzvNpz9pshCPK7gh4XL7fqJF1tBR%2BxcYXrMUQK8YBhaADG4stoyoFZGsOdV4Zvwpt9pMZfuM4IoQA7ySywXNgVb9YGnG4zpM0jJGlmDINbk4RNKIGp%2BWyJlEenJUaWsbD4IFkh2ZFWffbqmMwen86vKXwNhHtCnT0CxHQA16j%2B%2F27THM754tay4z7fQ3g8erX45r0wwAtOQoy2IQNY%2FvQEQj9EPSygpovut0jWo%2BeICG0ZemthCEzdRIHgoKn7%2FnXjKi6eLhuO3baRZzrwtYExni%2Fw9hxlg5endf%2FWtuzCRxMaGGY%2BDPEu9vJiw7g%2FzcXwrB%2F8lNsWjCyqbe7nqihxiMii29mQ5BCRto0i3%2Bo%2BKzG9Emha3x8EA3B%2Fjq50F6mgEnHIZzwb3NsL7rvvb1V5hmRxEYerVNH%2BJ0DyCVZZC6g1JdrTF75UH91v657IvTNbfMm9ABzOxLDYiN3iKjTqFd4%2FxpK5xEcA"));for(let A in C.exports)g.env[A]=C.exports[A];let y=await l(Q),h=i(r.data.buffer),b=Date.now(),m=!0;t=()=>m=!1;const u=1e3/60;let D=b;!function A(){if(m)try{let e=Date.now(),t=!1;if(e>=D){let A=navigator.getGamepads(),B=0;for(let e=0;e<4;++e){let a=A[e];if(a){for(let A=0;A<8;++A){let t=(A+12)%16;a.buttons.length>t&&a.buttons[t].pressed&&(B|=1<<8*e+A)}if(a.axes.length>1)for(let A=0;A<4;++A){let t=a.axes[1-(A>>1)];(1&A?t:-t)>.5&&(B|=1<<8*e+A)}a.buttons.length>9&&a.buttons[9].pressed&&(t=!0)}}let a=i(I.buffer);a[16]=e-b,a[17]=s|B,y.exports.upd(),C.exports.endFrame();let o=i(I.buffer.slice(77824,78848));for(let A=0;A<76800;++A)h[A]=4278190080|o[w[A+120]];n.putImageData(r,0,0),D=Math.max(D+u,e)}t?F(B):window.requestAnimationFrame(A)}catch(A){e(E,A.toString())}}()}catch(A){e(E,A.toString())}}async function E(A){F(await(await fetch(A)).arrayBuffer())}function I(){let A=window.location.hash.slice(1);A.length>0?E("data:;base64,"+A):F(new ArrayBuffer(0))}window.onkeydown=Q,window.onkeyup=Q,window.onhashchange=I,I(),document.getElementById("cartButton").onclick=()=>{let A=document.createElement("input");A.type="file",A.accept=".wasm,.uw8,application/wasm",A.onchange=()=>{A.files.length>0&&E(URL.createObjectURL(A.files[0]))},A.click()};</script></html>
\ No newline at end of file
diff --git a/site/templates/index.html b/site/templates/index.html
index acfe2c5..c6cb0e6 100644
--- a/site/templates/index.html
+++ b/site/templates/index.html
@@ -4,7 +4,7 @@
         <section>
             <h1 class="text-center heading-text">A WebAssembly based sizecoding platform</h1>
         </section>
-        <a href="v0.1pre3">
+        <a href="v0.1pre4">
             <div class="demonstration-gif" style="width:640px;height:512px;background-color:black"></div>
         </a>
     </div>
diff --git a/web/src/main.js b/web/src/main.js
index dace381..270bc6c 100644
--- a/web/src/main.js
+++ b/web/src/main.js
@@ -117,7 +117,7 @@ async function runModule(data) {
             return data;
         }
 
-        let instantiate = async (data) => new WebAssembly.Instance(await WebAssembly.compile(data), importObject);
+        let instantiate = async (data) => (await WebAssembly.instantiate(data, importObject)).instance;
 
         let loadModuleURL = async (url) => instantiate(loadModuleData(await (await fetch(url)).arrayBuffer()));
 
@@ -194,6 +194,7 @@ async function runModule(data) {
                     u32Mem[16] = now - startTime;
                     u32Mem[17] = pad | gamepad;
                     instance.exports.upd();
+                    platform_instance.exports.endFrame();
 
                     let palette = U32(memory.buffer.slice(0x13000, 0x13000 + 1024));
                     for (let i = 0; i < 320 * 240; ++i) {