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Tandy 1000 Programmer's Reference Guide

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Chapter
6
I
BIOS
Services
Entry Conditions:
AH
=
16
AL
=
0 Set palette register
BL
=
number of the palette register (0-15) to set
BH
=
color value to store
AL
=
1
Set border color register
AL
=
2
Set palette color value
to
store and border registers
BH
=
color value to store
ES:DX :points
to
a
17
byte list.
bytes 0-15
=
values for palette registers 0-15
byte 16
=
value for
the
border register
Note:
CS,SS,DS,ES,BX,CX,DX are preserved.
203

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Tandy 1000 Specifications

General IconGeneral
ProcessorIntel 8088
Processor Speed4.77 MHz
RAM128 KB (expandable to 640 KB)
Operating SystemMS-DOS 2.11
ManufacturerTandy Corporation
Release Year1984
StorageSingle or double 5.25" floppy disk drive (360 KB), optional hard drive
SoundTandy 3-voice sound
PortsParallel, Serial
GraphicsCGA (Color Graphics Adapter)
Graphics Modes320x200, 640x200

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