Intel 815 manual Instruction Target Opcode 46h, Line

Models: 815

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Page 179
Image 179

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0

R

DWord

Bit

Description

 

 

 

0 = BR00

31:29

Client : 02h – 2D Processor

 

 

 

 

28:22

Instruction Target (Opcode) : 46h

 

 

 

 

21:20

Reserved. Must be Zero

 

 

 

 

19:17

Monochrome source data bit position of the first pixel within a byte per scan

 

 

line.

 

 

 

 

16:08

Reserved. Must be Zero

 

 

 

 

07:05

Pattern Vertical Alignment: (which scan line of the 8x8 pattern to start on)

 

 

 

 

04:00

Dword Length : 07h

 

 

 

1 = BR13

31:30

Reserved. Must be Zero

 

 

 

 

29

Mono Source Transparency Mode: (1 = transparency enabled; 0 = use background)

 

 

 

 

28

Reserved. Must be Zero

 

 

 

 

27

Reserved. Must be Zero

 

 

 

 

26

Must Be One (‘1’).

 

 

 

 

25:24

Color Depth:

 

 

00 = 8 bit color

 

 

01 = 16 bit color

 

 

10 = 24 bit color

 

 

11 = reserved

 

 

 

 

23:16

Raster operation:

 

 

 

 

15:00

Destination Pitch (signed): (13:00 are implemented in Intel® 810 chipset)

2 = BR14

31:16

Destination Height (in scan lines): (28:16 are implemented in Intel® 810 chipset)

 

15:00

Destination Width (in bytes): (12:00 are implemented in Intel® 810 chipset)

3 = BR09

31:00

Destination Address: Address of the first byte to be written

 

 

(25:00 are implemented in Intel® 810 chipset)

 

31:16

Reserved. Must be Zero

 

 

 

4 = BR11

15:00

Number of Monochrome Source Quadwords - 1: (1 to 64k Quadwords = 64 to

 

 

4M bits)

 

 

 

5 = BR12

31:00

Source Address: (address of the first byte of the first pixel on the first scan line)

 

 

(25:00 are implemented in Intel® 810 chipset)

 

31:24

Reserved. Must be Zero

 

 

 

6 = BR18

23:00

Source Background Color:

 

 

 

 

31:24

Reserved. Must be Zero

 

 

 

7 = BR19

23:00

Source Foreground Color:

 

 

 

8 = BR15

31:00

Pattern Address: (25:06 are implemented in Intel® 810 chipset)

179

Page 179
Image 179
Intel 815 manual Instruction Target Opcode 46h, Line