1 files changed, 28 insertions, 0 deletions
diff --git a/llparse-builder/src/code/mul-add.ts b/llparse-builder/src/code/mul-add.ts
new file mode 100644
index 0000000..fd648ed
--- /dev/null
+++ b/llparse-builder/src/code/mul-add.ts
@@ -0,0 +1,28 @@
+import { Field } from './field';
+
+/**
+ * Options for `code.mulAdd()`.
+ */
+export interface IMulAddOptions {
+  /** Value to multiply the property with in the first step */
+  readonly base: number;
+
+  /**
+   * Maximum value of the property. If at any point of computation the
+   * intermediate result exceeds it - `mulAdd` returns 1 (overflow).
+   */
+  readonly max?: number;
+
+  /**
+   * If `true` - all arithmetics perfomed by `mulAdd` will be signed.
+   *
+   * Default value: `false`
+   */
+  readonly signed?: boolean;
+}
+
+export class MulAdd extends Field {
+  constructor(field: string, public readonly options: IMulAddOptions) {
+    super('value', 'mul_add', field);
+  }
+}