Deep Dive: CTS Flow Control in the Serial/Modem System
Why you can't just shovel bytes through a virtual modem—RTS/CTS backpressure, buffer gates, and the timing budget that makes dial-up feel real.
ARTICLES // TAG
5 ENTRIES
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modem
5 articles tagged with "modem"
Build System Groundwork and Modem Plumbing
Tightening the build pipeline for modem-core WASM, dynamic backend loading, and making the modem behave like a real modem.
Deep Dive: Bell 212A and V.32bis Handshakes
When 300 baud isn't enough—simulating faster modem handshakes with phase modulation, training sweeps, and the controlled chaos of negotiation audio.
Deep Dive: Bell 103 Audio Modem and FSK Implementation
Implementing the 1962 modem standard that made 300 baud dialup possible—FSK modulation, Goertzel demodulation, and the two-band trick that keeps full‑duplex honest.
A Small Day That Mattered
Fixing CRT modem and BBS bugs—the quiet foundation work that keeps a larger project from getting weird later.