diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/pc80/vga.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/include/pc80/vga.h b/src/include/pc80/vga.h index 4b7b26c36c..ec012f5bdf 100644 --- a/src/include/pc80/vga.h +++ b/src/include/pc80/vga.h @@ -8,6 +8,15 @@ #define VGA_COLUMNS 80 #define VGA_LINES 25 +#define VGA_TEXT_HORIZONTAL_TOP 0 +#define VGA_TEXT_HORIZONTAL_MIDDLE (VGA_LINES / 2) + +enum VGA_TEXT_ALIGNMENT { + VGA_TEXT_LEFT, + VGA_TEXT_CENTER, + VGA_TEXT_RIGHT, +}; + void vga_io_init(void); void vga_textmode_init(void); @@ -20,4 +29,10 @@ void vga_frame_set(unsigned int line, unsigned int character); void vga_line_write(unsigned int line, const char *string); +/* + * vga_write_text() writes a line of text aligned left/center/right + * horizontally on the screen (i.e. enum VGA_TEXT_ALIGNMENT) + */ +void vga_write_text(enum VGA_TEXT_ALIGNMENT alignment, unsigned int line, const char *string); + #endif /* VGA_H */ |