HP Vectra User Manual

Bit 5 determines the pallet of colors used in the 320 x 2 mode, as
defined as:
Pixel
Bit 5 = 0 Bit 5 = 1
C1 CO Normal Alternate Normal Alternate
o 0 Background determined by bits 0-3.
o 1 Green Lt. Green Cyan Lt. Cyan
1 0
Red Lt. Red Magenta Lt. Magenta
1 1 Brown Yellow
White Bright White
Status Register
The status register is an 8-bit read-only register.
Bit Data Definition
o 0 Display Enable, Active Area
1 Retrace
o Light pen hit, register reset
1
Reg ister set
2
3
4
5
6
7
o
1
o
1
o
1
o
1
Light Pen Switch, open
Closed
Vertical
Sync,
within vertical sync time
Monitor type, 25kHz
Monitor type, 15kHz
Color adapter connected
Color adapter
not connected
Diagnostic purposes
Diagnostic purposes
Multi-Mode Video Adapter Card 95

HP Vectra Specifications

General

Processor	Intel Pentium
RAM	Up to 128 MB
Storage	HDD (capacity varies by model)
Operating System	Windows 95
Graphics	Integrated
Ports	Serial, Parallel
Expansion Slots	ISA, PCI