61 736D: An Introduction to the Binary Magic of WASM
Talkat Cloud Native Wasm Day Europe 2022 · on Monday, 2022-05-16· at 10:30· Pavilion 3, Room F | Level 2 | Central Forum, Feria Valencia, Spain + Live Stream·
summary
A simple WASM program is compiled to a .wasm file and a byte-by-byte walkthrough shows the actual preamble bytes, section order, and how function signatures live in the type section. The binary exposes only four base types (i32 i64 f32 f64), specific instructions like the drop instruction, and concrete memory layout using linear memory offsets and the value stack. The demo generates the binary and steps through each opcode and section successfully.
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