runtime: reuse common code between 32 and 64-bit RISC-V

src/runtime/arch_tinygoriscv32.go

@@ -0,0 +1,13 @@
+// +build tinygo.riscv32
+
+package runtime
+
+const GOARCH = "arm" // riscv pretends to be arm
+
+// The bitness of the CPU (e.g. 8, 32, 64).
+const TargetBits = 32
+
+// Align on word boundary.
+func align(ptr uintptr) uintptr {
+	return (ptr + 3) &^ 3
+}