Intermec m90 Reference Guide
DOS System Call
—
Chapter 4
69
M90 Series Portable Data Entry Unit Reference Manual
Unsupported DOS Functions (INT 21h) (continued)
Description
Function
31h
TSR
33h
Get or Set Ctrl-C Check
34h
Get Addr of InDOS Flag
38h
Get or Set Country
39h
Create Directory
3Ah
Remote Directory
3Bh
Change Current Directory
45h
Duplicate File Handle
46h
Force Duplicate File Handle
47h
Get Current Directory
4Dh
Get Return Code
4Eh
Find First File
4Fh
Find Next File
54h
Get Verify File
57h
Get or Set Date and Time of File
BIOS Call
Display Font Functions: INT 09H
0 Select Large Font
Entry Parameter: AH=0
Entry Parameter: AH=0
8x16-dot character font (4-line x 12-column display)
Return Value:
None
1 Select Small Font
Entry Parameter: AH=1
Entry Parameter: AH=1
6x8-dot character font (8-line x 16-column display)
Return Value:
None
2 Set Font Type
Entry Parameter: AH=2
Entry Parameter: AH=2
AL=0
Set to large font
AL=1
Set to small font
Return Value:
None
3 Get Font Type
Entry Parameter: AH=3
Return Value:
Entry Parameter: AH=3
Return Value:
AL=0
Large font
AL=1
Small font
4 Set User-Defined Font for All Characters
Entry Parameter: AH=4
Entry Parameter: AH=4
AL=0
Large font
AL=1
Small font
DS:DX=Pointer to buffer with font data
(for large font: buffer size=16x256 =4096 bytes)
(for small font: buffer size= 6x256 =1536 bytes)
(for small font: buffer size= 6x256 =1536 bytes)
Return Value:
None