diff --git a/assets/disk0/decodemov.js b/assets/disk0/decodemov.js
index 1682922..01a038a 100644
--- a/assets/disk0/decodemov.js
+++ b/assets/disk0/decodemov.js
@@ -137,7 +137,13 @@ let framesRendered = 0
 //serial.println(readCount) // must say 18
 //serial.println(`Dim: (${width}x${height}), FPS: ${fps}, Frames: ${frameCount}`)
 
+if (type != 0) {
+    printerrln("Not a type 0 mov")
+    return 1
+}
+
 let fbuf = sys.malloc(FBUF_SIZE)
+graphics.setGraphicsMode(0)
 
 let startTime = sys.nanoTime()
 while (framesRendered < frameCount) {
diff --git a/assets/disk0/decodemovhi.js b/assets/disk0/decodemovhi.js
new file mode 100644
index 0000000..0606ebd
--- /dev/null
+++ b/assets/disk0/decodemovhi.js
@@ -0,0 +1,187 @@
+
+let filename = exec_args[1]
+
+const FBUF_SIZE = 560*448
+const MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56]
+const port = filesystem._toPorts("A")[0]
+
+println("Reading...")
+
+com.sendMessage(port, "DEVRST\x17")
+com.sendMessage(port, `OPENR"${filename}",1`)
+let statusCode = com.getStatusCode(port)
+
+if (statusCode != 0) {
+    printerrln(`No such file (${statusCode})`)
+    return statusCode
+}
+
+com.sendMessage(port, "READ")
+statusCode = com.getStatusCode(port)
+if (statusCode != 0) {
+    printerrln("READ failed with "+statusCode)
+    return statusCode
+}
+
+con.clear(); con.curs_set(0)
+
+let readCount = 0
+
+function readBytes(length) {
+    let ptr = sys.malloc(length)
+    let requiredBlocks = Math.floor((readCount + length) / 4096) - Math.floor(readCount / 4096)
+
+    let completedReads = 0
+
+    //serial.println(`readBytes(${length}); readCount = ${readCount}`)
+
+    for (let bc = 0; bc < requiredBlocks + 1; bc++) {
+        if (completedReads >= length) break
+
+        if (readCount % 4096 == 0) {
+            //serial.println("READ from serial")
+            // pull the actual message
+            sys.poke(-4093 - port, 6);sys.sleep(0) // spinning is required as Graal run is desynced with the Java side
+
+            let blockTransferStatus = ((sys.peek(-4085 - port*2) & 255) | ((sys.peek(-4086 - port*2) & 255) << 8))
+            let thisBlockLen = blockTransferStatus & 4095
+            if (thisBlockLen == 0) thisBlockLen = 4096 // [1, 4096]
+            let hasMore = (blockTransferStatus & 0x8000 != 0)
+
+
+            //serial.println(`block: (${thisBlockLen})[${[...Array(thisBlockLen).keys()].map(k => (sys.peek(-4097 - k) & 255).toString(16).padStart(2,'0')).join()}]`)
+
+            let remaining = Math.min(thisBlockLen, length - completedReads)
+
+            //serial.println(`Pulled a block (${thisBlockLen}); readCount = ${readCount}, completedReads = ${completedReads}, remaining = ${remaining}`)
+
+            // copy from read buffer to designated position
+            sys.memcpy(-4097, ptr + completedReads, remaining)
+
+            // increment readCount properly
+            readCount += remaining
+            completedReads += remaining
+        }
+        else {
+            let padding = readCount % 4096
+            let remaining = length - completedReads
+            let thisBlockLen = Math.min(4096 - padding, length - completedReads)
+
+            //serial.println(`padding = ${padding}; remaining = ${remaining}`)
+
+            //serial.println(`block: (${thisBlockLen})[${[...Array(thisBlockLen).keys()].map(k => (sys.peek(-4097 - padding - k) & 255).toString(16).padStart(2,'0')).join()}]`)
+
+            //serial.println(`Reusing a block (${thisBlockLen}); readCount = ${readCount}, completedReads = ${completedReads}`)
+
+            // copy from read buffer to designated position
+            sys.memcpy(-4097 - padding, ptr + completedReads, thisBlockLen)
+
+            // increment readCount properly
+            readCount += thisBlockLen
+            completedReads += thisBlockLen
+        }
+    }
+
+    //serial.println(`END readBytes(${length}); readCount = ${readCount}\n`)
+
+    return ptr
+}
+
+function readInt() {
+    let b = readBytes(4)
+    let i = (sys.peek(b) & 255) | ((sys.peek(b+1) & 255) << 8) | ((sys.peek(b+2) & 255) << 16) | ((sys.peek(b+3) & 255) << 24)
+
+    //serial.println(`readInt(); bytes: ${sys.peek(b)}, ${sys.peek(b+1)}, ${sys.peek(b+2)}, ${sys.peek(b+3)} = ${i}\n`)
+
+    sys.free(b)
+    return i
+}
+
+function readShort() {
+    let b = readBytes(2)
+    let i = (sys.peek(b) & 255) | ((sys.peek(b+1) & 255) << 8)
+
+    //serial.println(`readShort(); bytes: ${sys.peek(b)}, ${sys.peek(b+1)} = ${i}\n`)
+
+    sys.free(b)
+    return i
+}
+
+
+let magic = readBytes(8)
+let magicMatching = true
+
+// check if magic number matches
+MAGIC.forEach((b,i) => {
+    let testb = sys.peek(magic + i) & 255 // for some reason this must be located here
+    if (testb != b) {
+        magicMatching = false
+    }
+})
+sys.free(magic)
+if (!magicMatching) {
+    println("Not a movie file (MAGIC mismatch)")
+    return 1
+}
+
+
+let width = readShort()
+let height = readShort()
+let fps = readShort(); if (fps == 0) fps = 9999
+let frameTime = 1.0 / fps
+let frameCount = readInt() % 16777216
+let type = readShort()
+sys.free(readBytes(12)) // skip 12 bytes
+let akku = frameTime
+let framesRendered = 0
+//serial.println(readCount) // must say 18
+//serial.println(`Dim: (${width}x${height}), FPS: ${fps}, Frames: ${frameCount}`)
+
+if (type != 2) {
+    printerrln("Not a type 2 mov")
+    return 1
+}
+
+let fbuf1 = sys.malloc(FBUF_SIZE)
+let fbuf2 = sys.malloc(FBUF_SIZE)
+graphics.setGraphicsMode(4)
+
+let startTime = sys.nanoTime()
+while (framesRendered < frameCount) {
+    //serial.println(`Frame #${f+1}`)
+
+    let t1 = sys.nanoTime()
+
+    if (akku >= frameTime) {
+        akku -= frameTime
+
+        // plane 1
+        let payloadLen1 = readInt()
+        let gzippedPtr1 = readBytes(payloadLen1)
+        let payloadLen2 = readInt()
+        let gzippedPtr2 = readBytes(payloadLen2)
+
+        gzip.decompFromTo(gzippedPtr1, payloadLen1, fbuf1) // should return FBUF_SIZE
+        gzip.decompFromTo(gzippedPtr2, payloadLen2, fbuf2) // should return FBUF_SIZE
+        dma.ramToFrame(fbuf1, 0, FBUF_SIZE)
+        dma.ramToFrame2(fbuf2, 0, FBUF_SIZE)
+
+        sys.free(gzippedPtr1)
+        sys.free(gzippedPtr2)
+
+
+        framesRendered += 1
+    }
+    sys.sleep(1)
+
+    let t2 = sys.nanoTime()
+    akku += (t2 - t1) / 1000000000.0
+}
+let endTime = sys.nanoTime()
+
+sys.free(fbuf1)
+sys.free(fbuf2)
+
+let timeTook = (endTime - startTime) / 1000000000.0
+
+//println(`Actual FPS: ${frameCount / timeTook}`)
\ No newline at end of file
diff --git a/assets/disk0/decodemovhimjpg.js b/assets/disk0/decodemovhimjpg.js
new file mode 100644
index 0000000..bbbf7e9
--- /dev/null
+++ b/assets/disk0/decodemovhimjpg.js
@@ -0,0 +1,187 @@
+
+let filename = exec_args[1]
+
+const FBUF_SIZE = 560*448
+const MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56]
+const port = filesystem._toPorts("A")[0]
+
+println("Reading...")
+
+com.sendMessage(port, "DEVRST\x17")
+com.sendMessage(port, `OPENR"${filename}",1`)
+let statusCode = com.getStatusCode(port)
+
+if (statusCode != 0) {
+    printerrln(`No such file (${statusCode})`)
+    return statusCode
+}
+
+com.sendMessage(port, "READ")
+statusCode = com.getStatusCode(port)
+if (statusCode != 0) {
+    printerrln("READ failed with "+statusCode)
+    return statusCode
+}
+
+con.clear(); con.curs_set(0)
+
+let readCount = 0
+
+function readBytes(length) {
+    let ptr = sys.malloc(length)
+    let requiredBlocks = Math.floor((readCount + length) / 4096) - Math.floor(readCount / 4096)
+
+    let completedReads = 0
+
+    //serial.println(`readBytes(${length}); readCount = ${readCount}`)
+
+    for (let bc = 0; bc < requiredBlocks + 1; bc++) {
+        if (completedReads >= length) break
+
+        if (readCount % 4096 == 0) {
+            //serial.println("READ from serial")
+            // pull the actual message
+            sys.poke(-4093 - port, 6);sys.sleep(0) // spinning is required as Graal run is desynced with the Java side
+
+            let blockTransferStatus = ((sys.peek(-4085 - port*2) & 255) | ((sys.peek(-4086 - port*2) & 255) << 8))
+            let thisBlockLen = blockTransferStatus & 4095
+            if (thisBlockLen == 0) thisBlockLen = 4096 // [1, 4096]
+            let hasMore = (blockTransferStatus & 0x8000 != 0)
+
+
+            //serial.println(`block: (${thisBlockLen})[${[...Array(thisBlockLen).keys()].map(k => (sys.peek(-4097 - k) & 255).toString(16).padStart(2,'0')).join()}]`)
+
+            let remaining = Math.min(thisBlockLen, length - completedReads)
+
+            //serial.println(`Pulled a block (${thisBlockLen}); readCount = ${readCount}, completedReads = ${completedReads}, remaining = ${remaining}`)
+
+            // copy from read buffer to designated position
+            sys.memcpy(-4097, ptr + completedReads, remaining)
+
+            // increment readCount properly
+            readCount += remaining
+            completedReads += remaining
+        }
+        else {
+            let padding = readCount % 4096
+            let remaining = length - completedReads
+            let thisBlockLen = Math.min(4096 - padding, length - completedReads)
+
+            //serial.println(`padding = ${padding}; remaining = ${remaining}`)
+
+            //serial.println(`block: (${thisBlockLen})[${[...Array(thisBlockLen).keys()].map(k => (sys.peek(-4097 - padding - k) & 255).toString(16).padStart(2,'0')).join()}]`)
+
+            //serial.println(`Reusing a block (${thisBlockLen}); readCount = ${readCount}, completedReads = ${completedReads}`)
+
+            // copy from read buffer to designated position
+            sys.memcpy(-4097 - padding, ptr + completedReads, thisBlockLen)
+
+            // increment readCount properly
+            readCount += thisBlockLen
+            completedReads += thisBlockLen
+        }
+    }
+
+    //serial.println(`END readBytes(${length}); readCount = ${readCount}\n`)
+
+    return ptr
+}
+
+function readInt() {
+    let b = readBytes(4)
+    let i = (sys.peek(b) & 255) | ((sys.peek(b+1) & 255) << 8) | ((sys.peek(b+2) & 255) << 16) | ((sys.peek(b+3) & 255) << 24)
+
+    //serial.println(`readInt(); bytes: ${sys.peek(b)}, ${sys.peek(b+1)}, ${sys.peek(b+2)}, ${sys.peek(b+3)} = ${i}\n`)
+
+    sys.free(b)
+    return i
+}
+
+function readShort() {
+    let b = readBytes(2)
+    let i = (sys.peek(b) & 255) | ((sys.peek(b+1) & 255) << 8)
+
+    //serial.println(`readShort(); bytes: ${sys.peek(b)}, ${sys.peek(b+1)} = ${i}\n`)
+
+    sys.free(b)
+    return i
+}
+
+
+let magic = readBytes(8)
+let magicMatching = true
+
+// check if magic number matches
+MAGIC.forEach((b,i) => {
+    let testb = sys.peek(magic + i) & 255 // for some reason this must be located here
+    if (testb != b) {
+        magicMatching = false
+    }
+})
+sys.free(magic)
+if (!magicMatching) {
+    println("Not a movie file (MAGIC mismatch)")
+    return 1
+}
+
+
+let width = readShort()
+let height = readShort()
+let fps = readShort(); if (fps == 0) fps = 9999
+let frameTime = 1.0 / fps
+let frameCount = readInt() % 16777216
+let type = readShort()
+sys.free(readBytes(12)) // skip 12 bytes
+let akku = frameTime
+let framesRendered = 0
+//serial.println(readCount) // must say 18
+//serial.println(`Dim: (${width}x${height}), FPS: ${fps}, Frames: ${frameCount}`)
+
+if (type != 16) {
+    printerrln("Not a type 16 mov")
+    return 1
+}
+
+let fbuf1 = sys.malloc(FBUF_SIZE)
+let fbuf2 = sys.malloc(FBUF_SIZE)
+graphics.setGraphicsMode(4)
+
+let imagearea = sys.malloc(FBUF_SIZE)
+let decodearea1 = sys.malloc(FBUF_SIZE)
+let decodearea2 = sys.malloc(FBUF_SIZE)
+
+let startTime = sys.nanoTime()
+while (framesRendered < frameCount) {
+    //serial.println(`Frame #${f+1}`)
+
+    let t1 = sys.nanoTime()
+
+    if (akku >= frameTime) {
+        akku -= frameTime
+
+        let payloadLen = readInt()
+        let jpgPtr = readBytes(payloadLen)
+
+        graphics.decodeImageTo(jpgPtr, payloadLen, imagearea)
+        graphics.imageToDirectCol(imagearea, -1048577, -1310721, 560, 448, 3, framesRendered)
+
+        sys.free(jpgPtr)
+
+        framesRendered += 1
+    }
+    sys.sleep(1)
+
+    let t2 = sys.nanoTime()
+    akku += (t2 - t1) / 1000000000.0
+}
+let endTime = sys.nanoTime()
+
+sys.free(fbuf1)
+sys.free(fbuf2)
+sys.free(imagearea)
+sys.free(decodearea1)
+sys.free(decodearea2)
+
+let timeTook = (endTime - startTime) / 1000000000.0
+
+//println(`Actual FPS: ${frameCount / timeTook}`)
\ No newline at end of file
diff --git a/assets/disk0/encodemovhi.js b/assets/disk0/encodemovhi.js
new file mode 100644
index 0000000..5e3f87f
--- /dev/null
+++ b/assets/disk0/encodemovhi.js
@@ -0,0 +1,80 @@
+
+const FBUF_SIZE = 560*448
+let infile = sys.malloc(120000) // somewhat arbitrary
+let imagearea = sys.malloc(FBUF_SIZE*3)
+let decodearea1 = sys.malloc(FBUF_SIZE)
+let decodearea2 = sys.malloc(FBUF_SIZE)
+let gzippedImage1 = sys.malloc(180000) // somewhat arbitrary
+let gzippedImage2 = sys.malloc(180000) // somewhat arbitrary
+
+let outfilename = exec_args[1]
+
+if (!outfilename) return 1
+
+function appendToOutfile(bytes) {
+    filesystem.open("A", outfilename, "A")
+    filesystem.writeBytes("A", bytes)
+}
+
+function appendToOutfilePtr(ptr, len) {
+    filesystem.open("A", outfilename, "A")
+    dma.ramToCom(ptr, 0, len)
+}
+
+// write header to the file
+let headerBytes = [
+    0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56, // magic
+    0x30, 0x02, // width (560)
+    0xC0, 0x01, // height (448)
+    0x1E, 0x00, // FPS (30)
+    0x34, 0x00, 0x00, 0x00, // frame count (52)
+    0x02, 0x00, // type 2 frames
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // reserved
+]
+
+filesystem.open("A", outfilename, "W")
+filesystem.writeBytes("A", headerBytes)
+
+for (let f = 1; f <=52; f++) {
+    let fname = `/movtestimg/${(''+f).padStart(3,'0')}.jpg`
+    filesystem.open("A", fname, "R")
+    let fileLen = filesystem.getFileLen("A")
+    dma.comToRam(0, 0, infile, fileLen)
+
+    graphics.decodeImageTo(infile, fileLen, imagearea)
+
+    print(`Encoding frame ${f}...`)
+
+    graphics.imageToDirectCol(imagearea, decodearea1, decodearea2, 560, 448, 3, f)
+
+    let gzlen1 = gzip.compFromTo(decodearea1, FBUF_SIZE, gzippedImage1)
+    let gzlen2 = gzip.compFromTo(decodearea2, FBUF_SIZE, gzippedImage2)
+
+    let frameSize1 = [
+        (gzlen1 >>> 0) & 255,
+        (gzlen1 >>> 8) & 255,
+        (gzlen1 >>> 16) & 255,
+        (gzlen1 >>> 24) & 255
+    ]
+    let frameSize2 = [
+        (gzlen2 >>> 0) & 255,
+        (gzlen2 >>> 8) & 255,
+        (gzlen2 >>> 16) & 255,
+        (gzlen2 >>> 24) & 255
+    ]
+
+    appendToOutfile(frameSize1)
+    appendToOutfilePtr(gzippedImage1, gzlen1)
+
+    appendToOutfile(frameSize2)
+    appendToOutfilePtr(gzippedImage2, gzlen2)
+
+    print(` ${gzlen1 + gzlen2} bytes\n`)
+}
+
+sys.free(infile)
+sys.free(imagearea)
+sys.free(decodearea1)
+sys.free(decodearea2)
+sys.free(gzippedImage1)
+sys.free(gzippedImage2)
\ No newline at end of file
diff --git a/assets/disk0/encodemovmjpg.js b/assets/disk0/encodemovmjpg.js
new file mode 100644
index 0000000..03113e1
--- /dev/null
+++ b/assets/disk0/encodemovmjpg.js
@@ -0,0 +1,55 @@
+
+const FBUF_SIZE = 560*448
+let infile = sys.malloc(120000) // somewhat arbitrary
+
+let outfilename = exec_args[1]
+
+if (!outfilename) return 1
+
+function appendToOutfile(bytes) {
+    filesystem.open("A", outfilename, "A")
+    filesystem.writeBytes("A", bytes)
+}
+
+function appendToOutfilePtr(ptr, len) {
+    filesystem.open("A", outfilename, "A")
+    dma.ramToCom(ptr, 0, len)
+}
+
+// write header to the file
+let headerBytes = [
+    0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56, // magic
+    0x30, 0x02, // width (560)
+    0xC0, 0x01, // height (448)
+    0x1E, 0x00, // FPS (30)
+    0x34, 0x00, 0x00, 0x00, // frame count (52)
+    0x10, 0x00, // type 16 frames
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // reserved
+]
+
+filesystem.open("A", outfilename, "W")
+filesystem.writeBytes("A", headerBytes)
+
+for (let f = 1; f <=52; f++) {
+    let fname = `/movtestimg/${(''+f).padStart(3,'0')}.jpg`
+    filesystem.open("A", fname, "R")
+    let fileLen = filesystem.getFileLen("A")
+    dma.comToRam(0, 0, infile, fileLen)
+
+
+    print(`Encoding frame ${f}...`)
+
+    let frameSize = [
+        (fileLen >>> 0) & 255,
+        (fileLen >>> 8) & 255,
+        (fileLen >>> 16) & 255,
+        (fileLen >>> 24) & 255
+    ]
+
+    appendToOutfile(frameSize)
+    appendToOutfilePtr(infile, fileLen)
+
+    print(` ${fileLen} bytes\n`)
+}
+
+sys.free(infile)
diff --git a/tsvm_core/src/net/torvald/tsvm/DMADelegate.kt b/tsvm_core/src/net/torvald/tsvm/DMADelegate.kt
index b75cee6..0d289a9 100644
--- a/tsvm_core/src/net/torvald/tsvm/DMADelegate.kt
+++ b/tsvm_core/src/net/torvald/tsvm/DMADelegate.kt
@@ -20,6 +20,12 @@ class DMADelegate(val vm: VM) {
         }
     }
 
+    fun ramToFrame2(from: Int, devnum: Int, offset: Int, length: Int) {
+        (vm.peripheralTable[devnum].peripheral as? GraphicsAdapter)?.let {
+            UnsafeHelper.memcpyRaw(null, vm.usermem.ptr + from, null, it.framebuffer2!!.ptr + offset, length.toLong())
+        }
+    }
+
     fun ramToFrame(from: Int, to: Int, length: Int) {
         for (i in 0..7) {
             if (vm.peripheralTable[i].type == VM.PERITYPE_GPU_AND_TERM) {
@@ -29,6 +35,15 @@ class DMADelegate(val vm: VM) {
         }
     }
 
+    fun ramToFrame2(from: Int, to: Int, length: Int) {
+        for (i in 0..7) {
+            if (vm.peripheralTable[i].type == VM.PERITYPE_GPU_AND_TERM) {
+                ramToFrame2(from, i, to, length)
+                return
+            }
+        }
+    }
+
     fun frameToRam(from: Int, to: Int, devnum: Int, length: Int) {
         (vm.peripheralTable[devnum].peripheral as? GraphicsAdapter)?.let {
             UnsafeHelper.memcpyRaw(null, it.framebuffer.ptr + from, null, vm.usermem.ptr + to, length.toLong())
diff --git a/tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt b/tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
index 4bf2455..8b7fdcf 100644
--- a/tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
+++ b/tsvm_core/src/net/torvald/tsvm/GraphicsJSR223Delegate.kt
@@ -502,7 +502,7 @@ class GraphicsJSR223Delegate(val vm: VM) {
         for (k in 0L until len) {
             val x = (k % width).toInt()
             val y = (k / width).toInt()
-            val t = bayerKernels[pattern][4 * (y % 4) + (x % 4)]
+            val t = bayerKernels[pattern % bayerKernels.size][4 * (y % 4) + (x % 4)]
 
             val r = vm.peek(srcPtr + channels * k + 0)!!.toUint().toFloat() / 255f
             val g = vm.peek(srcPtr + channels * k + 1)!!.toUint().toFloat() / 255f