0.2.17

.travis.yml

@@ -3,7 +3,7 @@ node_js:
   - "5.7.0"
 script:
   - "node node_modules/kindscript/built/kind.js travis"  
-  - "cd libs/lang-test0; node ../../node_modules/kindscript/built/kind.js run"
+  - "(cd libs/lang-test0; node ../../node_modules/kindscript/built/kind.js run)"
   - "node node_modules/kindscript/built/kind.js uploaddoc"
 sudo: false
 notifications:

libs/hello/kind.json

@@ -6,6 +6,7 @@
     ],
     "public": true,
     "dependencies": {
-        "microbit": "file:../microbit"
+        "microbit": "file:../microbit",
+        "microbit-radio": "file:../microbit-radio"
     }
 }

libs/lang-test0/lang-test0.ts

@@ -59,6 +59,7 @@ testMemoryFreeHOF();
 postPreFix()
 eqOp()
 testEnums()
+testBuffer()
 
 // test some top-level code
 let xsum = 0;
@@ -722,3 +723,52 @@ function switchB(e: En) {
     }
     return r;
 }
+
+function bufferIs(b:Buffer, a:number[]) {
+    assert(b.length == a.length, "bis-len")
+    for (let i = 0; i < a.length; ++i) {
+        if (a[i] != b[i]) {
+            assert(false, `bufferIs: buf[${i}]:${b[i]} != ${a[i]}`)
+        }
+    }
+}
+
+function testBuffer() {
+    let b = pins.createBuffer(3);
+    assert(b[0] == 0, "buf0");
+    assert(b[1] == 0, "buf0");
+    assert(b[2] == 0, "buf0");
+    assert(b[-100000] == 0, "bufM");
+    assert(b[100000] == 0, "bufM");
+
+    b[0] = 42;
+    bufferIs(b, [42, 0, 0]);
+    b[2] = 41;
+    bufferIs(b, [42, 0, 41]);
+
+    b.rotate(1)
+    bufferIs(b, [0, 41, 42]);
+    b.rotate(-2)
+    bufferIs(b, [41, 42, 0]);
+    b.shift(1)
+    bufferIs(b, [42, 0, 0]);
+    b.rotate(9)
+    bufferIs(b, [42, 0, 0]);
+    b.rotate(-9)
+    bufferIs(b, [42, 0, 0]);
+
+    b.fill(4);
+    bufferIs(b, [4, 4, 4]);
+
+    b.fill(12, 1, 1);
+    bufferIs(b, [4, 12, 4]);
+
+    b.fill(13, 1, -1);
+    bufferIs(b, [4, 13, 13]);
+
+    b.fill(100, -1, -1);
+    bufferIs(b, [4, 13, 13]);
+
+    b.shift(-1)
+    bufferIs(b, [0, 4, 13]);
+}

libs/microbit/buffer.cpp

@@ -0,0 +1,155 @@
+#include "ksbit.h"
+
+enum class NumberFormat {
+    Int8LE = 1,
+    UInt8LE,
+    Int16LE,
+    UInt16LE,
+    Int32LE,
+    Int8BE,
+    UInt8BE,
+    Int16BE,
+    UInt16BE,
+    Int32BE,
+    // UInt32,
+};
+
+//% indexerGet=BufferMethods::getByte indexerSet=BufferMethods::setByte
+namespace BufferMethods {
+    //%
+    int getByte(Buffer buf, int off) {
+        return max(ManagedBuffer(buf).getByte(off), 0);
+    }
+
+    //%
+    void setByte(Buffer buf, int off, int v) {
+        ManagedBuffer(buf).setByte(off, v);
+    }
+
+    //%
+    uint8_t *getBytes(Buffer buf) {
+        return buf->payload;
+    }
+
+    /**
+     * Write a number in specified format in the buffer.
+     */
+    //%
+    void setNumber(Buffer buf, NumberFormat format, int offset, int value)
+    {
+        int8_t i8;
+        uint8_t u8;
+        int16_t i16;
+        uint16_t u16;
+        int32_t i32;
+
+        ManagedBuffer b(buf);
+
+        // Assume little endian
+        #define WRITEBYTES(isz, swap) isz = value; b.writeBytes(offset, (uint8_t*)&isz, sizeof(isz), swap); break
+
+        switch (format) {
+        case NumberFormat::Int8LE: WRITEBYTES(i8, false);
+        case NumberFormat::UInt8LE: WRITEBYTES(u8, false);
+        case NumberFormat::Int16LE: WRITEBYTES(i16, false);
+        case NumberFormat::UInt16LE: WRITEBYTES(u16, false);
+        case NumberFormat::Int32LE: WRITEBYTES(i32, false);
+        case NumberFormat::Int8BE: WRITEBYTES(i8, true);
+        case NumberFormat::UInt8BE: WRITEBYTES(u8, true);
+        case NumberFormat::Int16BE: WRITEBYTES(i16, true);
+        case NumberFormat::UInt16BE: WRITEBYTES(u16, true);
+        case NumberFormat::Int32BE: WRITEBYTES(i32, true);
+        }
+    }
+
+    /**
+     * Read a number in specified format from the buffer.
+     */
+    //%
+    int getNumber(Buffer buf, NumberFormat format, int offset)
+    {
+        int8_t i8;
+        uint8_t u8;
+        int16_t i16;
+        uint16_t u16;
+        int32_t i32;
+
+        ManagedBuffer b(buf);
+
+        // Assume little endian
+        #define READBYTES(isz, swap) b.readBytes((uint8_t*)&isz, offset, sizeof(isz), swap); return isz
+
+        switch (format) {
+        case NumberFormat::Int8LE: READBYTES(i8, false);
+        case NumberFormat::UInt8LE: READBYTES(u8, false);
+        case NumberFormat::Int16LE: READBYTES(i16, false);
+        case NumberFormat::UInt16LE: READBYTES(u16, false);
+        case NumberFormat::Int32LE: READBYTES(i32, false);
+        case NumberFormat::Int8BE: READBYTES(i8, true);
+        case NumberFormat::UInt8BE: READBYTES(u8, true);
+        case NumberFormat::Int16BE: READBYTES(i16, true);
+        case NumberFormat::UInt16BE: READBYTES(u16, true);
+        case NumberFormat::Int32BE: READBYTES(i32, true);
+        }
+
+        return 0;
+    }
+
+    /** Returns the length of a Buffer object. */
+    //% property
+    int length(Buffer s) {
+        return s->length;
+    }
+
+    /**
+     * Fill (a fragment) of the buffer with given value.
+     */
+    //%
+    void fill(Buffer buf, int value, int offset = 0, int length = -1)
+    {
+        ManagedBuffer(buf).fill(value, offset, length);
+    }
+
+    /**
+     * Return a copy of a fragment of a buffer.
+     */
+    //%
+    Buffer slice(Buffer buf, int offset = 0, int length = -1)
+    {
+        return ManagedBuffer(buf).slice(offset, length).leakData();
+    }
+
+    /**
+     * Shift buffer left in place, with zero padding.
+     * @param offset number of bytes to shift; use negative value to shift right
+     */
+    //%
+    void shift(Buffer buf, int offset)
+    {
+        ManagedBuffer(buf).shift(offset);
+    }
+
+    /**
+     * Rotate buffer left in place.
+     * @param offset number of bytes to shift; use negative value to shift right
+     */
+    //%
+    void rotate(Buffer buf, int offset)
+    {
+        ManagedBuffer(buf).rotate(offset);
+    }
+
+    // int readBytes(uint8_t *dst, int offset, int length, bool swapBytes = false) const;
+    // int writeBytes(int dstOffset, uint8_t *src, int length, bool swapBytes = false);
+
+    /**
+     * Write contents of `src` at `dstOffset` in current buffer.
+     */
+    //%
+    void write(Buffer buf, int dstOffset, Buffer src)
+    {
+        //Not supported, we only do up to 4 args :/
+        //void write(Buffer buf, int dstOffset, Buffer src, int srcOffset = 0, int length = -1)
+        ManagedBuffer(buf).writeBuffer(dstOffset, ManagedBuffer(src), 0, -1);
+    }
+}

libs/microbit/core.cpp

@@ -324,7 +324,7 @@ namespace ksrt {
   RefAction *stclo(RefAction *a, int idx, uint32_t v)
   {
     //DBG("STCLO "); a->print(); DBG("@%d = %p\n", idx, (void*)v);
-    a->st(idx, v);
+    a->stCore(idx, v);
     return a;
   }
 
@@ -334,65 +334,3 @@ namespace ksrt {
     uBit.panic(code);
   }
 }
-
-
-
-  namespace buffer {
-
-    RefBuffer *mk(uint32_t size)
-    {
-      RefBuffer *r = new RefBuffer();
-      r->data.resize(size);
-      return r;
-    }
-
-    char *cptr(RefBuffer *c)
-    {
-      return (char*)&c->data[0];
-    }
-
-    int count(RefBuffer *c) { return c->data.size(); }
-
-    void fill(RefBuffer *c, int v)
-    {
-      memset(cptr(c), v, count(c));
-    }
-
-    void fill_random(RefBuffer *c)
-    {
-      int len = count(c);
-      for (int i = 0; i < len; ++i)
-        c->data[i] = uBit.random(0x100);
-    }
-
-    void add(RefBuffer *c, uint32_t x) {
-      c->data.push_back(x);
-    }
-
-    inline bool in_range(RefBuffer *c, int x) {
-      return (0 <= x && x < (int)c->data.size());
-    }
-
-    uint32_t at(RefBuffer *c, int x) {
-      if (in_range(c, x)) {
-        return c->data[x];
-      }
-      else {
-        error(ERR_OUT_OF_BOUNDS);
-        return 0;
-      }
-    }
-
-    void set(RefBuffer *c, int x, uint32_t y) {
-      if (!in_range(c, x))
-        return;
-      c->data[x] = y;
-    }
-  }
-
-  namespace bitvm_bits {
-    RefBuffer *create_buffer(int size)
-    {
-      return buffer::mk(size);
-    }
-  }

libs/microbit/core.d.ts

@@ -82,6 +82,10 @@ interface String {
 }
 
 
+interface Buffer {
+    [index: number]: number;
+}
+
 /**
   * Converts A string to an integer.
   * @param s A string to convert into a number.
@@ -93,4 +97,3 @@ interface Object {}
 interface Function {}
 interface IArguments {}
 interface RegExp {}
-

libs/microbit/enums.d.ts

@@ -271,4 +271,19 @@ declare namespace pins {
 declare namespace serial {
 }
 
+
+    declare enum NumberFormat {
+    Int8LE = 1,
+    UInt8LE = 2,
+    Int16LE = 3,
+    UInt16LE = 4,
+    Int32LE = 5,
+    Int8BE = 6,
+    UInt8BE = 7,
+    Int16BE = 8,
+    UInt16BE = 9,
+    Int32BE = 10,
+    // UInt32,
+    }
+
 // Auto-generated. Do not edit. Really.

libs/microbit/kind.json

@@ -22,8 +22,10 @@
         "led.ts",
         "music.ts",
         "pins.cpp",
+        "pins.ts",
         "serial.cpp",
-        "serial.ts"
+        "serial.ts",
+        "buffer.cpp"
     ],
     "public": true,
     "dependencies": {},
@@ -31,69 +33,5 @@
         "config": {
             "MESSAGE_BUS_LISTENER_DEFAULT_FLAGS": "MESSAGE_BUS_LISTENER_QUEUE_IF_BUSY"
         }
-    },
-    "target": {
-        "id": "microbit",
-        "name": "BBC micro:bit",
-        "title": "JavaScript for BBC micro:bit",
-        "cloud": {
-            "workspace": false,
-            "packages": true
-        },
-        "blocksprj": {
-            "id": "blocksprj",
-            "config": {
-                "name": "{0} block",
-                "dependencies": {
-                    "microbit": "*",
-                    "microbit-radio": "*"
-                },
-                "description": "",
-                "files": [
-                    "main.blocks",
-                    "main.blocks.ts",
-                    "README.md"
-                ]
-            },
-            "files": {
-                "main.blocks": "<xml xmlns=\"http://www.w3.org/1999/xhtml\"><block type=\"device_print_message\"><value name=\"text\"><shadow type=\"text\"><field name=\"TEXT\">Hello!</field></shadow></value></block></xml>",
-                "main.blocks.ts": "\n",
-                "README.md": "Describe your project here!"
-            }
-        },
-        "tsprj": {
-            "id": "tsprj",
-            "config": {
-                "name": "{0} bit",
-                "dependencies": {
-                    "microbit": "*",
-                    "microbit-radio": "*"
-                },
-                "description": "",
-                "files": [
-                    "main.ts",
-                    "README.md"
-                ]
-            },
-            "files": {
-                "main.ts": "basic.showString('Hello!')\n",
-                "README.md": "Describe your project here!"
-            }
-        },
-        "compile": {
-            "isNative": false,
-            "hasHex": true
-        },
-        "simulator": {
-            "autoRun": true
-        },
-        "compileService": {
-            "gittag": "v0.1.2",
-            "serviceId": "ws"
-        },
-        "serial": {
-            "manufacturerFilter": "^mbed$",
-            "log": true
-        }
     }
 }

libs/microbit/ksbit.h

@@ -1,6 +1,8 @@
 #include "kindscript.h"
+#include "ManagedBuffer.h"
 
 using namespace kindscript;
 MicroBitPin *getPin(int id);
 typedef ImageData* Image;
+typedef BufferData* Buffer;
 

libs/microbit/pins.cpp

@@ -69,6 +69,13 @@ namespace pins {
       if (!pin) return 0; \
       return pin->op
 
+
+    //%
+    MicroBitPin *getPinAddress(int id) {
+        return getPin(id);
+    }
+
+
     /**
      * Read the specified pin or connector as either 0 or 1
      * @param name pin to read from
@@ -179,24 +186,33 @@ namespace pins {
       }
     }
 
-    // TODO:
-    void i2cReadBuffer(int address, RefBuffer *buf)
+    /**
+     * Create a new zero-initialized buffer.
+     * @param size number of bytes in the buffer
+     */
+    //%
+    Buffer createBuffer(int size)
     {
-      uBit.i2c.read(address << 1, buf->cptr(), buf->size());
+        return ManagedBuffer(size).leakData();
     }
 
-    void i2cWriteBuffer(int address, RefBuffer *buf)
+    /**
+     * Read `size` bytes from a 7-bit I2C `address`.
+     */
+    //%
+    Buffer i2cReadBuffer(int address, int size, bool repeat = false)
     {
-      uBit.i2c.write(address << 1, buf->cptr(), buf->size());
+      Buffer buf = createBuffer(size);
+      uBit.i2c.read(address << 1, (char*)buf->payload, size, repeat);
+      return buf;
     }
-
-    int i2cReadRaw(int address, char *data, int length, int repeated)
+    
+    /**
+     * Write bytes to a 7-bit I2C `address`.
+     */
+    //%
+    void i2cWriteBuffer(int address, Buffer buf, bool repeat = false)
     {
-      return uBit.i2c.read(address, data, length, repeated);
-    }
-
-    int i2cWriteRaw(int address, const char *data, int length, int repeated)
-    {
-      return uBit.i2c.write(address, data, length, repeated);
+      uBit.i2c.write(address << 1, (char*)buf->payload, buf->length, repeat);
     }
 }

libs/microbit/pins.ts

@@ -13,4 +13,43 @@ namespace pins {
     export function map(value: number, fromLow: number, fromHigh: number, toLow: number, toHigh: number): number {
         return ((value - fromLow) * (toHigh - toLow)) / (fromHigh - fromLow) + toLow;
     }
+
+    /**
+     * Read one number from 7-bit I2C address.
+     */
+    export function i2cReadNumber(address: number, format: NumberFormat): number {
+        let buf = pins.i2cReadBuffer(address, pins.sizeOf(format))
+        return buf.getNumber(format, 0)
+    }
+
+    /**
+     * Write one number to a 7-bit I2C address.
+     */
+    export function i2cWriteNumber(address: number, value: number, format: NumberFormat): void {
+        let buf = createBuffer(pins.sizeOf(format))
+        buf.setNumber(format, 0, value)
+        pins.i2cWriteBuffer(address, buf)
+    }
+
+    /**
+     * Get the size in bytes of specified number format.
+     */
+    export function sizeOf(format: NumberFormat) {
+        switch (format) {
+            case NumberFormat.Int8LE:
+            case NumberFormat.UInt8LE:
+            case NumberFormat.Int8BE:
+            case NumberFormat.UInt8BE:
+                return 1;
+            case NumberFormat.Int16LE:
+            case NumberFormat.UInt16LE:
+            case NumberFormat.Int16BE:
+            case NumberFormat.UInt16BE:
+                return 2;
+            case NumberFormat.Int32LE:
+            case NumberFormat.Int32BE:
+                return 4;
+        }
+        return 0;
+    }
 }

libs/microbit/shims.d.ts

@@ -374,8 +374,8 @@ declare namespace control {
      * @param mode optional definition of how the event should be processed after construction (default is CREATE_AND_QUEUE).
      */
     //% weight=21 blockGap=12 blockId="control_raise_event" block="raise event|from source %src=control_event_source|with value %value=control_event_value" blockExternalInputs=1
-    //%  mode.defl=1 shim=control::raiseEvent
-    function raiseEvent(src: number, value: number, mode: EventCreationMode): void;
+    //% mode.defl=1 shim=control::raiseEvent
+    function raiseEvent(src: number, value: number, mode?: EventCreationMode): void;
 
     /**
      * Raises an event in the event bus.
@@ -534,6 +534,25 @@ declare namespace pins {
      */
     //% help=pins/analog-pitch weight=14 async shim=pins::analogPitch
     function analogPitch(frequency: number, ms: number): void;
+
+    /**
+     * Create a new zero-initialized buffer.
+     * @param size number of bytes in the buffer
+     */
+    //% shim=pins::createBuffer
+    function createBuffer(size: number): Buffer;
+
+    /**
+     * Read `size` bytes from a 7-bit I2C `address`.
+     */
+    //% repeat.defl=0 shim=pins::i2cReadBuffer
+    function i2cReadBuffer(address: number, size: number, repeat?: boolean): Buffer;
+
+    /**
+     * Write bytes to a 7-bit I2C `address`.
+     */
+    //% repeat.defl=0 shim=pins::i2cWriteBuffer
+    function i2cWriteBuffer(address: number, buf: Buffer, repeat?: boolean): void;
 }
 
 
@@ -566,4 +585,57 @@ declare namespace serial {
     function readScreen(): void;
 }
 
+
+
+    //% indexerGet=BufferMethods::getByte indexerSet=BufferMethods::setByte
+declare interface Buffer {
+    /**
+     * Write a number in specified format in the buffer.
+     */
+    //% shim=BufferMethods::setNumber
+    setNumber(format: NumberFormat, offset: number, value: number): void;
+
+    /**
+     * Read a number in specified format from the buffer.
+     */
+    //% shim=BufferMethods::getNumber
+    getNumber(format: NumberFormat, offset: number): number;
+
+    /** Returns the length of a Buffer object. */
+    //% property shim=BufferMethods::length
+    length: number;
+
+    /**
+     * Fill (a fragment) of the buffer with given value.
+     */
+    //% offset.defl=0 length.defl=-1 shim=BufferMethods::fill
+    fill(value: number, offset?: number, length?: number): void;
+
+    /**
+     * Return a copy of a fragment of a buffer.
+     */
+    //% offset.defl=0 length.defl=-1 shim=BufferMethods::slice
+    slice(offset?: number, length?: number): Buffer;
+
+    /**
+     * Shift buffer left in place, with zero padding.
+     * @param offset number of bytes to shift; use negative value to shift right
+     */
+    //% shim=BufferMethods::shift
+    shift(offset: number): void;
+
+    /**
+     * Rotate buffer left in place.
+     * @param offset number of bytes to shift; use negative value to shift right
+     */
+    //% shim=BufferMethods::rotate
+    rotate(offset: number): void;
+
+    /**
+     * Write contents of `src` at `dstOffset` in current buffer.
+     */
+    //% shim=BufferMethods::write
+    write(dstOffset: number, src: Buffer): void;
+}
+
 // Auto-generated. Do not edit. Really.

libs/neopixel/kind.json

@@ -0,0 +1,20 @@
+{
+    "name": "neppixel",
+    "description": "AdaFruit NeoPixel driver for micro:bit",
+    "files": [
+        "neopixel.ts",
+        "sendbuffer.asm"
+    ],
+    "testFiles": [
+        "neotest.ts"
+    ],
+    "microbit": {
+        "config": {
+            "MICROBIT_BLE_ENABLED": "0"
+        }
+    },
+    "public": true,
+    "dependencies": {
+        "microbit": "file:../microbit"
+    }
+}

libs/neopixel/neopixel.ts

@@ -0,0 +1,88 @@
+namespace neopixel {
+
+    //% shim=sendBufferAsm
+    function sendBuffer(buf: Buffer, pin: DigitalPin) {
+    }
+
+    class Strip {
+        buf: Buffer;
+        pin: DigitalPin;
+        brightness: number;
+
+        length() {
+            return this.buf.length / 3
+        }
+
+        /**
+         * Set the brightness of the strip, 0-255.
+         */
+        setBrigthness(brightness: number): void {
+            this.brightness = brightness;
+        }
+
+        /**
+         * Set the pin where the neopixel is connected, defaults to P0.
+         */
+        setPin(pin: DigitalPin): void {
+            this.pin = pin;
+            pins.digitalWritePin(this.pin, 0)
+            basic.pause(50)
+        }
+
+        /**
+         * Turn off all LEDs.
+         */
+        clear(): void {
+            this.buf.fill(0);
+        }
+
+        /**
+         * Shift LEDs forward.
+         */
+        shift(off: number): void {
+            this.buf.shift(-off * 3)
+        }
+
+        /**
+         * Shift LEDs forward.
+         */
+        rotate(): void {
+            this.buf.rotate(-3)
+        }
+
+        display() {
+            basic.pause(1)
+            sendBuffer(this.buf, this.pin);
+        }
+
+        /**
+         * Set give LED to a given color (range 0-255 for r, g, b)
+         */
+        setPix(ledoff: number, r: number, g: number, b: number): void {
+            ledoff = ledoff * 3;
+            let br = this.brightness;
+            if (br < 255) {
+                r = (Math.clamp(0, 255, r) * br) >> 8;
+                g = (Math.clamp(0, 255, b) * br) >> 8;
+                b = (Math.clamp(0, 255, b) * br) >> 8;
+            }
+            let buf = this.buf;
+            buf[ledoff + 0] = Math.clamp(0, 255, g);
+            buf[ledoff + 1] = Math.clamp(0, 255, r);
+            buf[ledoff + 2] = Math.clamp(0, 255, b);
+        }
+    }
+
+    /**
+     * Create a new NeoPixel driver for `numleds` LEDs.
+     * @params numleds number of leds in the strip, eg: 24,30,60,64
+     */
+    export function create(numleds: number): Strip {
+        let strip = new Strip();
+        strip.buf = pins.createBuffer(numleds * 3);
+        strip.setBrigthness(255)
+        strip.setPin(DigitalPin.P0)
+        return strip;
+    }
+
+}

libs/neopixel/neotest.ts

@@ -0,0 +1,92 @@
+basic.showLeds(`
+    # . . . .
+    . . . . .
+    . . # . .
+    . . . . .
+    . . . . #
+    `)
+console.log("Start")
+
+// Create a NeoPixel driver - specify the number of LEDs:
+let strip = neopixel.create(7);
+
+// If your strip is not at P0, specify the pin.
+strip.setPin(DigitalPin.P0)
+
+// Brightness defaults to 255 (very bright); 0 is completely off.
+strip.setBrigthness(20)
+
+// Set pixels - pixel number, followed by red, green and blue values, between 0 and 255.
+strip.setPix(0, 255, 255, 255);
+strip.setPix(1, 0, 255, 255);
+strip.setPix(2, 255, 0, 255);
+strip.setPix(3, 255, 255, 0);
+
+console.log("Send!")
+
+// Send the image to the strip.
+strip.display();
+basic.pause(500);
+
+console.log("Sent!")
+
+// Green light travelling the strip:
+for (let l = 0; l < strip.length(); l++) {
+    strip.clear();
+    strip.setPix(l, 0, 255, 0);
+    strip.display();
+    basic.pause(100);
+}
+
+let special = false;
+let numcol = 0;
+input.onButtonPressed(Button.A, () => {
+    special = true;
+    let r = 0;
+    let g = 0;
+    let b = 0;
+    if (numcol == 0) {
+        r = 255;
+        g = 255;
+        b = 255;
+    } else if (numcol == 1) {
+        r = 255;
+    } else if (numcol == 2) {
+        b = 255;
+    } else if (numcol == 3) {
+        r = 255;
+        g = 255;
+    } else if (numcol == 4) {
+        r = 10;
+        g = 10;
+        b = 10;
+    }
+    numcol = (numcol + 1) % 5;
+    for (let k = 0; k < 7; k++) {
+        strip.setPix(k, r, g, b);
+    }
+    strip.display();
+});
+
+control.inBackground(() => {
+    for (let j = 0; j < 2000000; j++) {
+        if (special) {
+            basic.pause(100);
+            continue;
+        }
+        let r1 = (0 + j * 2) & 63;
+        let g1 = (20 + j * 1) & 63;
+        let b1 = (30 + j * 3) & 63;
+        for (let i = 0; i < strip.length(); i++) {
+            strip.setPix(i, (r1 - i) * 20, (g1 - i) * 20, (b1 - i) * 20);
+        }
+        strip.display()
+        basic.pause(60);
+    }
+});
+
+control.inBackground(() => {
+    while (true) {
+        basic.showString("XMAS!", 150);
+    }
+});

libs/neopixel/sendbuffer.asm

@@ -0,0 +1,67 @@
+sendBufferAsm:
+
+    push {r4,r5,r6,r7,lr}
+    
+    mov r4, r0 ; save buff
+    mov r6, r1 ; save pin
+    
+    mov r0, r4
+    bl BufferMethods::length
+    mov r5, r0
+    
+    mov r0, r4
+    bl BufferMethods::getBytes
+    mov r4, r0
+    
+    ; setup pin as digital
+    mov r0, r6
+    movs r1, #0
+    bl pins::digitalWritePin
+    
+    ; load pin address
+    mov r0, r6
+    bl pins::getPinAddress
+
+    ldr r0, [r0, #8] ; get mbed DigitalOut from MicroBitPin
+    ldr r1, [r0, #4] ; r1-mask for this pin
+    ldr r2, [r0, #16] ; r2-clraddr
+    ldr r3, [r0, #12] ; r3-setaddr
+    
+    cpsid i ; disable irq
+    
+    b .start
+    
+.nextbit:               ;            C0
+    str r1, [r3, #0]    ; pin := hi  C2
+    tst r6, r0          ;            C3
+    bne .islate         ;            C4
+    str r1, [r2, #0]    ; pin := lo  C6
+.islate:
+    lsrs r6, r6, #1     ; r6 >>= 1   C7
+    bne .justbit        ;            C8
+    
+    ; not just a bit - need new byte
+    adds r4, #1         ; r4++       C9
+    subs r5, #1         ; r5--       C10
+    bcc .stop           ; if (r5<0) goto .stop  C11
+.start:
+    movs r6, #0x80      ; reset mask C12
+    nop                 ;            C13
+
+.common:               ;             C13
+    str r1, [r2, #0]   ; pin := lo   C15
+    ; always re-load byte - it just fits with the cycles better this way
+    ldrb r0, [r4, #0]  ; r0 := *r4   C17
+    b .nextbit         ;             C20
+
+.justbit: ; C10
+    ; no nops, branch taken is already 3 cycles
+    b .common ; C13
+
+.stop:    
+    str r1, [r2, #0]   ; pin := lo
+    cpsie i            ; enable irq
+
+    pop {r4,r5,r6,r7,pc}
+
+

package.json

@@ -1,6 +1,6 @@
 {
   "name": "kindscript-microbit",
-  "version": "0.2.13",
+  "version": "0.2.17",
   "description": "BBC micro:bit target for KindScript",
   "keywords": [
     "JavaScript",
@@ -17,7 +17,6 @@
   "files": [
     "README.md",
     "kindtarget.json",
-    "kindtheme.json",
     "built/*.js",
     "built/*.json",
     "built/*.d.ts",
@@ -30,6 +29,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "kindscript": "0.2.15"
+    "kindscript": "0.2.19"
   }
 }

sim/libmbit.ts

@@ -527,4 +527,4 @@ namespace ks.rt.ImageMethods {
     }
     
     // TODO ...
-}
+}