User`s guide

3 BDOS Calls: Function 6 CP/M 3 Programmer's Guide

Table 3-1. Function 6 Entry Parameters

E value Meaning

OFFH Console input/status command returns an input character; if no

character is ready, a value of zero is returned.

OFEH Console status command (On return, register A contains 00 if no

character is ready; otherwise it contains FFH.)

OFDH Console input command, returns an input character; this func-

tion will suspend the calling process until a character is ready.

ASCII Function 6 assumes that register E contains a valid ASCII char-

character acter and sends it to the console.

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BDOS Function Calls CP/M 3 Programmers Guide