Purpose: Serial - send untalk
Call address: $FFAB (hex) 65451 (decimal)
Registers: none Memory: system map Flags: none Calls: noneResults:
Registers: .A used Memory: STATUS ($90) Flags: none
Description: UNTLK is a low-level Kernal serial bus routine that sends and UNTALK command to all serial bus devices. It commands all TALKing devices to sop sending data. (Most applications should us the higher-level I/O routines; see CLRCHN).
JSR $FFAB ;UNTALK serial device