DeepSeek V4 stores the non-RoPE part of compressed KV through an E4M3-style * round trip. Keeping this in the CPU reference makes cache values compa

Calculate the display width of a UTF-8 string of 'len' bytes. * This is used for cursor positioning in the terminal. * Handles grapheme clusters: ch

Tokenizers can split a multi-byte UTF-8 character across two tokens. If an * SSE delta ends at that boundary, some clients replace the incomplete by

Run a row-parallel CPU kernel, falling back to serial execution for small * jobs or nested calls where spawning more work would only add latency. */

Quantize a float activation into Q8_K blocks so GGUF Q2_K/IQ2_XXS expert * kernels can reuse the same activation for many expert rows. */

Track where generation is inside a DSML tool call. This is intentionally a * forgiving recognizer, not a validator: malformed DSML still gets parsed

Execute one Metal decode token and read back logits. */

Codex' Responses API uses 24-hex suffixes for response/item ids. Prefix * controls the variant (resp_, rs_, msg_, fc_) so each event references a *

Ctrl+C is a latched request consumed by the worker. Once an interrupted * operation has reached a stable append-only boundary and is about to publis

Build the editable footer. With queued prompts, the footer becomes multiple * rows: a compact queue preview first, then the normal status row. */

Serialize async model/tool output with linenoise. This is the central * terminal contract. In scroll-region mode the live prompt stays painted: *

Load one token embedding row and expand it to float activations. */

Check if codepoint is Zero Width Joiner. */