From 55553ae245a90d5736cd5e9229a80bfa3397e821 Mon Sep 17 00:00:00 2001
From: ay4-ibrahim <ahmed13.ibrahim@live.uwe.ac.uk>
Date: Wed, 6 Mar 2024 21:45:17 +0500
Subject: [PATCH] feat: update kernel to support newlines and output coloured
Hello World
---
kernel.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/kernel.c b/kernel.c
index e41db16..2217dc0 100644
--- a/kernel.c
+++ b/kernel.c
@@ -85,6 +85,12 @@ void terminal_putentryat(char c, uint8_t color, size_t x, size_t y) {
}
void terminal_putchar(char c) {
+ if (c == '\n') {
+ terminal_column = 0;
+ ++terminal_row;
+ return;
+ }
+
terminal_putentryat(c, terminal_color, terminal_column, terminal_row);
if (++terminal_column == VGA_WIDTH) {
terminal_column = 0;
@@ -106,10 +112,10 @@ extern "C" /* Use C linkage for kernel_main. */
void kernel_main() {
/* Initialize terminal interface */
terminal_initialize();
-
- /* Since there is no support for newlines in terminal_putchar
- * yet, '\n' will produce some VGA specific character instead.
- * This is normal.
- */
- terminal_writestring("Hello, kernel World!\n");
+
+ terminal_setcolor(make_color(COLOR_BLUE, COLOR_BLACK));
+ terminal_writestring("Hello World!\n");
+
+ terminal_setcolor(make_color(COLOR_RED, COLOR_BLACK));
+ terminal_writestring("Hello, World!\n");
}
--
GitLab