1 files changed, 28 insertions, 0 deletions
diff --git a/src/kernel/arch/log.h b/src/kernel/arch/log.h
new file mode 100644
index 0000000..0a5d5a0
--- /dev/null
+++ b/src/kernel/arch/log.h
@@ -0,0 +1,28 @@
+#pragma once
+#include <stddef.h>
+
+void log_write(const char *buf, size_t len);
+
+inline void log_hex(const char *buf, size_t len) {
+	char hex[2];
+	for (size_t i = 0; i < len; i++) {
+		hex[0] = (buf[i] & 0xF0) >> 4;
+		hex[0] += '0';
+		if (hex[0] > '9')
+			hex[0] += 'a' - '9' - 1;
+
+		hex[1] = buf[i] & 0xF;
+		hex[1] += '0';
+		if (hex[1] > '9')
+			hex[1] += 'a' - '9' - 1;
+		
+		log_write(hex, 2);
+	}
+}
+
+// used for static strings
+#define log_const(str) log_write(str, sizeof(str) - 1)
+
+// very hacky, shouldn't be actually used - only for debugging
+// prints backwards
+#define log_var_dont_use(var) log_hex((void*)&var, sizeof(var))