Initial commit

4 files changed, 66 insertions, 0 deletions

diff --git a/src/loader/inc/cpu.h b/src/loader/inc/cpu.h
new file mode 100644
index 0000000..88db34b
--- /dev/null
+++ b/src/loader/inc/cpu.h
@@ -0,0 +1,13 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#ifndef CPU_H
+#define CPU_H
+
+#include <def.h>
+
+u8 inb(u16 port);
+u16 inw(u16 port);
+
+void outb(u16 port, u8 data);
+
+#endif
diff --git a/src/loader/inc/def.h b/src/loader/inc/def.h
new file mode 100644
index 0000000..8c2f9aa
--- /dev/null
+++ b/src/loader/inc/def.h
@@ -0,0 +1,28 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+// Useful macros/types
+
+#ifndef DEF_H
+#define DEF_H
+
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef __builtin_va_list va_list;
+#define va_start __builtin_va_start
+#define va_end __builtin_va_end
+#define va_arg __builtin_va_arg
+
+#define NULL ((void *)0)
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#define ABS(a) (((a) < 0) ? -(a) : (a))
+
+#define PACKED __attribute__((packed))
+
+#endif
diff --git a/src/loader/inc/lib.h b/src/loader/inc/lib.h
new file mode 100644
index 0000000..997db67
--- /dev/null
+++ b/src/loader/inc/lib.h
@@ -0,0 +1,14 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#ifndef LIB_H
+#define LIB_H
+
+#include <def.h>
+
+u32 strlen(const char *str);
+u32 strnlen(const char *s, u32 max);
+u32 strlcpy(char *dst, const char *src, u32 size);
+
+int itoa(s32 value, char *buffer, u32 base);
+
+#endif
diff --git a/src/loader/inc/log.h b/src/loader/inc/log.h
new file mode 100644
index 0000000..2d65a76
--- /dev/null
+++ b/src/loader/inc/log.h
@@ -0,0 +1,11 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#ifndef LOG_H
+#define LOG_H
+
+void serial_install(void);
+void serial_print(const char *data);
+
+void log(const char *format, ...);
+
+#endif