SECTION 6
Conversions and Interfaces
PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide 6-27
Unsupported 4000 Series Interrupts
The following 4000 Series INT 16h Keyboard BIOS interfaces and INT 15h
functions are not implemented in 4000API.EXE.
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Function AH = 0FCh: Set and Read Keyboard Mask Value
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Function AH = 0FDh: Set Debounce Timer Value
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Function AX = 01ECh: Huge Memory Transfer
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Function AX = 01EDh: Return ASIC Register
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Function AX = 01EEh: Return Silicon Serial Number
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Function AX = 01F1h: Turn On RAM Card Controller
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Function AX = 01F2h: Elapsed Timer Ticks
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Function AX = 01F3h: Turn Off RAM Card Controller
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Function AX = 01F6h: Battery Service
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Function AX = 01F7h: Set LowĆBattery Interrupt Message
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Function AX = 01FCh, DL = 1: Set Length Of Available Memory
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Function AX = 01FCh, DL = 2: Allocate BIOS Memory
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Function AX = 4100h: Wait On Any Event
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Function AH = 85h: System Request Has Been Pressed
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Function AX = 9102h: Post Keyboard
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System Resume Vector INT 6Ch
4000 Series Screen Emulation
Topics
Page
Parameters and Command Line Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Ć28
Font File Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Ć28
Interrupts Supported by FONTMAP.EXE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Ć28
4000 Series Video Functions Not Supported by FONTMAP . . . . . . . . . . . . . . . . . . . 6Ć29
FONTMAP.EXE is a 4000 Series screen emulation TSR for the 6200 Computer.
This program ports applications, written for a 4000 Series platform, to the 6200
Computer without modifying the display logic. Screen features include:
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Character mapping
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Cursor fixed mode
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Variable font sizes (20, 21, or 16 characters across the screen)
FONTMAP replaces the standard VGA BIOS interface available on the 6200
Computer with a 4000 Series compatible video BIOS interface. Thus, standard
VGA BIOS calls are not available once FONTMAP is loaded. It works with the
200Ćpixel x 160Ćpixel display on the 6200 Computer. In the absence of command
line switches, the default mode for FONTMAP is:
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Cursor chase video mode
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8x16 bitmap font
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Inverse mode on (characters above 127 are mapped to inverse video
characters 0ć127 when the high bit is turned off)
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Cursor turned off
6. Conversions and
Interfaces
