Added a lot of comments in kernel code. A bit of cleaning too.

1 files changed, 17 insertions, 4 deletions

diff --git a/src/kernel/core/sys.c b/src/kernel/core/sys.c
index 1e07f7c..96d4908 100644
--- a/src/kernel/core/sys.c
+++ b/src/kernel/core/sys.c
@@ -1,6 +1,9 @@
 #include "sys.h"
 #include "monitor.h"
 
+/*	These four functions are wrappers around ASM operations.
+	These functions are used when comunicating with the system hardware. */
+
 void outb(uint16_t port, uint8_t value) {
 	asm volatile("outb %1, %0" : : "dN"(port), "a"(value));
 }
@@ -21,14 +24,24 @@ uint16_t inw(uint16_t port) {
 	return ret;
 }
 
+/*	These two functions stop the system, reporting an error message, because something bad happenned. */
+
 void panic(char* message, char* file, int line) {
-	monitor_write("\n>> PANIC: >>");
-	monitor_write(message); monitor_write("<< at "); monitor_write(file);
-	monitor_write(":"); monitor_writeDec(line);
-	monitor_write("\nSystem halted -_-'");
+	monitor_write("\n\nPANIC:\t\t"); monitor_write(message);
+	monitor_write("\n File:\t\t"); monitor_write(file); monitor_put(':'); monitor_writeDec(line);
+	monitor_write("\n\t\tSystem halted -_-'\n");
+	asm volatile("cli; hlt");
+}
+
+void panic_assert(char* assertion, char* file, int line) {
+	monitor_write("\n\nASSERT FAILED:\t"); monitor_write(assertion);
+	monitor_write("\n File:\t\t"); monitor_write(file); monitor_put(':'); monitor_writeDec(line);
+	monitor_write("\n\t\tSystem halted -_-'\n");
 	asm volatile("cli; hlt");
 }
 
+/* Global system mutex. See comments in sys.h. */
+
 static uint32_t if_locks = 1;
 
 void cli() {