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| author | Freya Murphy <freya@freyacat.org> | 2025-04-19 16:36:51 -0400 |
|---|---|---|
| committer | Freya Murphy <freya@freyacat.org> | 2025-04-19 16:37:54 -0400 |
| commit | 472ec944d2ed81d0304cc6cac80946a6a44776be (patch) | |
| tree | f6cae641c143a0b45bb289d9d9fc6145706025b0 /kernel/drivers/vga.c | |
| parent | set mmap limit (diff) | |
| download | comus-472ec944d2ed81d0304cc6cac80946a6a44776be.tar.gz comus-472ec944d2ed81d0304cc6cac80946a6a44776be.tar.bz2 comus-472ec944d2ed81d0304cc6cac80946a6a44776be.zip | |
UEFI and republicans
Diffstat (limited to 'kernel/drivers/vga.c')
| -rw-r--r-- | kernel/drivers/vga.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/kernel/drivers/vga.c b/kernel/drivers/vga.c deleted file mode 100644 index d73fa9f..0000000 --- a/kernel/drivers/vga.c +++ /dev/null @@ -1,25 +0,0 @@ -#include <lib.h> -#include <comus/term.h> -#include <comus/asm.h> -#include <comus/memory.h> -#include <comus/drivers/vga.h> - -#define VGA_ADDR 0xB8000 -static volatile uint16_t *buffer = (uint16_t *)VGA_ADDR; - -// color -static uint8_t fg = 15, bg = 0; - -void vga_draw_char(char c, uint16_t x, uint16_t y) -{ - // output character - const size_t index = y * VGA_WIDTH + x; - buffer[index] = c | bg << 12 | fg << 8; - - // set cursor position on screen - const uint16_t pos = y * VGA_HEIGHT + x; - outb(0x3D4, 0x0F); - outb(0x3D5, (uint8_t)(pos & 0xFF)); - outb(0x3D4, 0x0E); - outb(0x3D5, (uint8_t)((pos >> 8) & 0xFF)); -} |