User`s guide

BDOS FUNCTION 112: LIST BLOCK
Entry Parameters:
Registers C: 70H
DE: CCB Address
Returned Value: none
The List Block function sends the character string located by the Character Control
Block, CCB, addressed in register pair DE, to the logical list device, LST.-.
The CCB format is:
byte 0 - 1 Address of character string (word value)
byte 2 - 3 Length of character string (word value)
3-95
BDOS Function Calls CP/M 3 Programmers Guide