Initial commit

6 files changed, 105 insertions, 0 deletions

diff --git a/include/asm/io.h b/include/asm/io.h
new file mode 100644
index 0000000..6ca5bbc
--- /dev/null
+++ b/include/asm/io.h
@@ -0,0 +1,14 @@
+/*
+ * asm/io.h
+ *
+ * Provides acces to x86 I/O functions
+ */
+
+#define inb(port) ({ \
+    unsigned char _val; \
+    asm volatile ("inb %%dx, %%al" : "=a" (_val) : "d" (port)); \
+    _val; \
+    })
+
+#define outb(port, val) \
+  asm volatile ("outb %%al, %%dx" : : "d" (port), "a" (val));
diff --git a/include/kernel/con.h b/include/kernel/con.h
new file mode 100644
index 0000000..4e564ed
--- /dev/null
+++ b/include/kernel/con.h
@@ -0,0 +1,14 @@
+/*
+ * con.h
+ *
+ * Basic VGA text console
+ */
+
+#ifndef _CON_H
+#define _CON_H
+
+void con_init(void);
+
+void con_print(char*);
+
+#endif
diff --git a/include/kernel/vsprintf.h b/include/kernel/vsprintf.h
new file mode 100644
index 0000000..08297d6
--- /dev/null
+++ b/include/kernel/vsprintf.h
@@ -0,0 +1,14 @@
+/*
+ * vsprintf.h
+ *
+ * A very basic implmentation of thr vsprintf function
+ */
+
+#ifndef _VSPRINTF_H
+#define _VSPRINTF_H
+
+#include <stdarg.h>
+
+int vsprintf(char*, char*, va_list);
+
+#endif
diff --git a/include/stdarg.h b/include/stdarg.h
new file mode 100644
index 0000000..8eb1341
--- /dev/null
+++ b/include/stdarg.h
@@ -0,0 +1,27 @@
+/*
+ * stdarg.h
+ *
+ * Provides va_list and associated functions
+ */
+
+#ifndef _STDARG_H
+#define _STDARG_H
+
+typedef char* va_list;
+
+#define __va_rounded_size(TYPE) \
+  (((sizeof(TYPE) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
+
+#define va_start(AP, LAST) \
+  (AP = ((char*) &LAST + __va_rounded_size(LAST)))
+
+#define va_arg(AP, TYPE) \
+  (AP += __va_rounded_size(TYPE), \
+   *((TYPE*) (AP - __va_rounded_size(TYPE))))
+
+#define va_end(AP)
+
+#define va_copy(DEST, SRC) \
+  (DEST = SRC)
+
+#endif
diff --git a/include/stdbool.h b/include/stdbool.h
new file mode 100644
index 0000000..f96b223
--- /dev/null
+++ b/include/stdbool.h
@@ -0,0 +1,17 @@
+/*
+ * stdbool.h
+ *
+ * Defines bool, true and false
+ */
+
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+typedef char bool;
+
+#undef false
+#define false 0
+#undef true
+#define true 1
+
+#endif
diff --git a/include/stdint.h b/include/stdint.h
new file mode 100644
index 0000000..3dc068e
--- /dev/null
+++ b/include/stdint.h
@@ -0,0 +1,19 @@
+/*
+ * stdint.h
+ *
+ * Common integer types
+ */
+
+#ifndef _STDINT_H
+#define _STDINT_H
+
+typedef char            int8_t;
+typedef unsigned char   uint8_t;
+typedef short           int16_t;
+typedef unsigned short  uint16_t;
+typedef int             int32_t;
+typedef unsigned int    uint32_t;
+typedef long            int64_t;
+typedef unsigned long   uint64_t;
+
+#endif