1 files changed, 9 insertions, 0 deletions
diff --git a/c/gbos.h b/c/gbos.h
new file mode 100644
index 0000000..9a09a5d
--- /dev/null
+++ b/c/gbos.h
@@ -0,0 +1,9 @@
+/* gbos userland C API (thin wrappers over rst $30 syscalls; see c/libc.asm) */
+#ifndef GBOS_H
+#define GBOS_H
+void          writes(const char *buf, unsigned char len); /* write to console */
+void          nl(void);                                   /* newline (CRLF)   */
+unsigned char readc(void);                                /* read one byte    */
+void          sexit(unsigned char code);                  /* exit(code)       */
+unsigned char getpid(void);
+#endif