Verzeichnisstruktur ver?ndertHEADmaster

1 files changed, 61 insertions, 0 deletions

diff --git a/driver/console.c b/driver/console.c
new file mode 100644
index 0000000..79f277c
--- /dev/null
+++ b/driver/console.c
@@ -0,0 +1,61 @@
+/* console_cur.c - console functions */
+
+#include <system.h>
+#include <console.h>
+
+unsigned char console_flags		= 0;
+unsigned short console_cur_pos		= 0;
+unsigned char console_std_attr		= 0x07;
+unsigned char console_akt_char_attr	= 0;
+unsigned char cur_blink_counter		= 0;
+
+
+void console_cursor_on() {
+	if(console_flags & FLAG_BLINK_ON) {console_flags &= ~FLAG_BLINK_ON; console_cur_blink();}
+}
+
+void console_cursor_off() {
+	if(console_flags & FLAG_BLINK_ON) {console_cur_blink(); console_flags |= FLAG_BLINK_ON;}
+}
+
+void console_cur_blink() {
+	if(console_flags & FLAG_BLINK_ON) {
+		console_flags &= ~FLAG_BLINK_ON;
+		asm (
+			"push %es\n"
+			"push %ebx\n"
+			"mov $32,%ax\n"
+			"mov %ax,%es\n"
+			"xor %ebx,%ebx\n"
+			"mov console_cur_pos,%bx\n"
+			"shl $1,%ebx\n"
+			"inc %ebx\n"
+			"mov console_akt_char_attr,%al\n"
+			"mov %al,%es:(%ebx)\n"
+			"pop %ebx\n"
+			"pop %es"
+		);
+	}
+	
+	else {
+		console_flags |= FLAG_BLINK_ON;
+		asm (
+			"push %es\n"
+			"push %ebx\n"
+			"mov $32,%ax\n"
+			"mov %ax,%es\n"
+			"xor %ebx,%ebx\n"
+			"mov console_cur_pos,%bx\n"
+			"shl $1,%ebx\n"
+			"inc %ebx\n"
+			"mov console_std_attr,%al\n"
+			"rol $4,%al\n"
+			"and $0b01110111,%al\n"
+			"mov %es:(%ebx),%ah\n"
+			"mov %ah,console_akt_char_attr\n"
+			"mov %al,%es:(%ebx)\n"
+			"pop %ebx\n"
+			"pop %es"
+		);
+	}
+}