FlashTarget.prototype.flash = function()

in editor/prepend/dapjs.js [2678:2725]
46 lines of code
13 McCabe index (conditional complexity)

    FlashTarget.prototype.flash = function (data, address, progressCb) {
        return __awaiter(this, void 0, void 0, function () {
            var pageSizeWords, bufferAddress, flashStart, ptr, wordPtr, pageData, flashAddress;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!!this.inited) return [3 /*break*/, 2];
                        return [4 /*yield*/, this.flashInit()];
                    case 1:
                        _a.sent();
                        _a.label = 2;
                    case 2:
                        pageSizeWords = this.platform.flashAlgo.pageSize / 4;
                        bufferAddress = this.platform.flashAlgo.pageBuffers[0];
                        flashStart = address || this.platform.flashAlgo.flashStart;
                        ptr = 0;
                        _a.label = 3;
                    case 3:
                        if (!(ptr < data.byteLength)) return [3 /*break*/, 6];
                        wordPtr = ptr / 4;
                        pageData = data.subarray(wordPtr, wordPtr + pageSizeWords);
                        flashAddress = flashStart + ptr;
                        return [4 /*yield*/, this.memory.writeBlock(bufferAddress, pageData)];
                    case 4:
                        _a.sent();
                        return [4 /*yield*/, this.runCode(this.platform.flashAlgo.instructions, this.platform.flashAlgo.loadAddress, this.platform.flashAlgo.pcProgramPage, // pc
                            this.platform.flashAlgo.loadAddress + 1, // lr
                            this.platform.flashAlgo.stackPointer, // sp
                            /* upload? */
                            false, 
                            /* args */
                            flashAddress, this.platform.flashAlgo.pageSize, bufferAddress)];
                    case 5:
                        _a.sent();
                        if (progressCb) {
                            progressCb(ptr / data.byteLength);
                        }
                        ptr += pageData.byteLength;
                        return [3 /*break*/, 3];
                    case 6:
                        if (progressCb) {
                            progressCb(1.0);
                        }
                        return [2 /*return*/];
                }
            });
        });
    };