video.h File Reference

Go to the source code of this file.

Defines

• #define VIDEO_BASE   0xB8000
• #define PORT_VIDEO_REG_WR   0x3d4
• #define PORT_VIDEO_VALUE_WR   0x3d5
• #define PORT_VIDEO_REG_RD   0x3d4
• #define PORT_VIDEO_VALUE_RD   0x3d5
• #define VIDEO_LOCATION   0xc
• #define CURSOR_LOCATION   0xe
• #define setword_vga(registro, valor)
• #define setbyte_vga(registro, valor)
• #define refresh_cursor(offset)   setword_vga(CURSOR_LOCATION, offset)
• #define video_location(pos)   setword_vga(VIDEO_LOCATION, pos)

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Define Documentation

#define CURSOR_LOCATION   0xe

Definition at line 14 of file video.h.

#define PORT_VIDEO_REG_RD   0x3d4

Definition at line 10 of file video.h.

#define PORT_VIDEO_REG_WR   0x3d4

Definition at line 6 of file video.h.

#define PORT_VIDEO_VALUE_RD   0x3d5

Definition at line 11 of file video.h.

#define PORT_VIDEO_VALUE_WR   0x3d5

Definition at line 7 of file video.h.

#define refresh_cursor (  offset   )     setword_vga(CURSOR_LOCATION, offset)

Definition at line 32 of file video.h. Referenced by putchar().

#define setbyte_vga (  registro, valor   )

Value: {cli(); \ outportb (PORT_VIDEO_REG_WR, registro); \ outportb (PORT_VIDEO_VALUE_WR, valor ); \ sti(); } Definition at line 25 of file video.h.

#define setword_vga (  registro, valor   )

Value: {cli(); \ outportb (PORT_VIDEO_REG_WR, registro); \ outportb (PORT_VIDEO_VALUE_WR, (((word)valor)>>8) & 0xFF); \ outportb (PORT_VIDEO_REG_WR, registro + 1); \ outportb (PORT_VIDEO_VALUE_WR, (byte) (valor) ); \ sti(); } Definition at line 17 of file video.h.

#define VIDEO_BASE   0xB8000

Definition at line 3 of file video.h.

#define video_location (  pos   )     setword_vga(VIDEO_LOCATION, pos)

Definition at line 34 of file video.h.

#define VIDEO_LOCATION   0xc

Definition at line 13 of file video.h.

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