From 912d2e3c7eb1baa71dda2c0a28aa5809eaa96f27 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Sat, 16 Jul 2022 13:33:00 +0200 Subject: amd64: barely boot into kernel code --- src/kernel/arch/i386/tty/vga.c | 33 --------------------------------- 1 file changed, 33 deletions(-) delete mode 100644 src/kernel/arch/i386/tty/vga.c (limited to 'src/kernel/arch/i386/tty/vga.c') diff --git a/src/kernel/arch/i386/tty/vga.c b/src/kernel/arch/i386/tty/vga.c deleted file mode 100644 index 9efd326..0000000 --- a/src/kernel/arch/i386/tty/vga.c +++ /dev/null @@ -1,33 +0,0 @@ -#include - -struct vga_cell { - unsigned char c; - unsigned char style; -} __attribute__((__packed__)); - -static const size_t vga_len = 80 * 25; -static struct vga_cell *vga = (void*) 0xB8000; -static size_t vga_pos = 0; - -static void vga_scroll(void) { - for (size_t i = 0; i < vga_len - 80; i++) - vga[i] = vga[i + 80]; - vga_pos -= 80; -} - -static void vga_putchar(char c) { - if (vga_pos >= vga_len - 80) - vga_scroll(); - vga[vga_pos++].c = c; -} - -void vga_write(const char *buf, size_t len) { - for (size_t i = 0; i < len; i++) - vga_putchar(buf[i]); -} - -void vga_clear(void) { - for (size_t i = 0; i < vga_len; i++) - vga[i].c = ' '; - vga_pos = 0; -} -- cgit v1.2.3