Minimal module Function declaration Function export Function import Function parameters Function results Local variables Global variables Mutable globals Start function

i32.const i64.const f32.const f64.const i32.add i32.sub i32.mul i32.div_s f64.add Numeric conversion

block loop br br_if if then else select return call call_indirect unreachable

Memory declaration Memory export Data segment i32.load i32.store load8_u store8 memory.size memory.grow Memory offset

Table declaration funcref elem segment ref.null ref.func table.get table.set table.size table.grow Indirect function table

i32.and i32.or i32.xor i32.shl i32.shr_s i32.rotl i32.eqz Comparison instructions Saturating truncation reinterpret instructions

Import JavaScript function Export function to JavaScript Shared linear memory concept Passing integers Passing strings via memory Reading UTF-8 from memory Writing results to memory Memory buffer refresh Host error boundary InstantiateStreaming pattern

Multi-value results Bulk memory memory.copy memory.fill table.copy SIMD v128.const SIMD i32x4.add Exception tags concept Threads atomic load Threads atomic store Component model concept