Add initial center firmware

1 files changed, 21 insertions, 0 deletions

diff --git a/fw/base.c b/fw/base.c
new file mode 100644
index 0000000..277c662
--- /dev/null
+++ b/fw/base.c
@@ -0,0 +1,21 @@
+
+#include <unistd.h>
+
+int __errno = 0;
+void *_impure_ptr = NULL;
+
+void __sinit(void) {
+}
+
+void *memset(void *s, int c, size_t n) {
+    char *end = (char *)s + n;
+    for (char *p = (char *)s; p < end; p++)
+        *p = (char)c;
+    return s;
+}
+
+size_t strlen(const char *s) {
+    const char *start = s;
+    while (*s++);
+    return s - start - 1;
+}