Tandy 1000 Programmer's Reference Guide

Chawter 1 I Svstem Calls
Close a File Handle
Function Call
3EH
Closes the file associated with a specified file handle. Internal
buffers are flushed.
Entry Conditions:
AH = 3EH
BX = file handle for file to close
Exit Conditions:
Carry set:
AX = error code
Carry not set:
No error.
Error Return:
AX = 6
Invalid handle, The handle passed in BX was not currently
open.
Example:
Close eq" 3EH
rnov bx,handle
mov ah,Close
int 21 H
110

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200