From 39822cdb0acdd1eec66c2e18e0711fd3cd6f033d Mon Sep 17 00:00:00 2001 From: Aleksa Vučković Date: Mon, 25 Oct 2021 22:41:21 +0200 Subject: Adding first 32 IRQs; PIT finally working --- src/c/vga.c | 43 ++++++++----------------------------------- 1 file changed, 8 insertions(+), 35 deletions(-) (limited to 'src/c/vga.c') diff --git a/src/c/vga.c b/src/c/vga.c index 07dec60..8c1824b 100644 --- a/src/c/vga.c +++ b/src/c/vga.c @@ -1,33 +1,16 @@ #include"../include/types.h" #include"../include/string.h" #include"../include/asm.h" +#include"../include/vga.h" -static const size_t VGA_WIDTH = 80; -static const size_t VGA_HEIGHT = 25; - - -enum vga_color { - VGA_COLOR_BLACK = 0, - VGA_COLOR_BLUE = 1, - VGA_COLOR_GREEN = 2, - VGA_COLOR_CYAN = 3, - VGA_COLOR_RED = 4, - VGA_COLOR_MAGENTA = 5, - VGA_COLOR_BROWN = 6, - VGA_COLOR_LIGHT_GREY = 7, - VGA_COLOR_DARK_GREY = 8, - VGA_COLOR_LIGHT_BLUE = 9, - VGA_COLOR_LIGHT_GREEN = 10, - VGA_COLOR_LIGHT_CYAN = 11, - VGA_COLOR_LIGHT_RED = 12, - VGA_COLOR_LIGHT_MAGENTA = 13, - VGA_COLOR_LIGHT_BROWN = 14, - VGA_COLOR_WHITE = 15, -}; +size_t terminal_row; +size_t terminal_column; +uint8_t terminal_color; +uint16_t* terminal_buffer; -static inline uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg) +void set_color(enum vga_color fg, enum vga_color bg) { - return fg | bg << 4; + terminal_color = fg | bg << 4; } static inline uint16_t vga_entry(unsigned char uc, uint8_t color) @@ -35,16 +18,11 @@ static inline uint16_t vga_entry(unsigned char uc, uint8_t color) return (uint16_t) uc | (uint16_t) color << 8; } -size_t terminal_row; -size_t terminal_column; -uint8_t terminal_color; -uint16_t* terminal_buffer; - void terminal_initialize() { terminal_row=0; terminal_column=0; - terminal_color=vga_entry_color(VGA_COLOR_LIGHT_GREY, VGA_COLOR_BLACK); + set_color(VGA_COLOR_LIGHT_GREY, VGA_COLOR_BLACK); terminal_buffer=(uint16_t*) 0xB8000; for(size_t y=0;y "); -} - void clear() { for(size_t i=0;i