From a48ad647aeaee6223eb5578f60234f35497fff99 Mon Sep 17 00:00:00 2001
From: Kamila Szewczyk <kspalaiologos@gmail.com>
Date: Sun, 8 Oct 2023 14:54:13 +0200
Subject: [PATCH] memset

---
 Makefile       |  2 +-
 lib83/memset.c | 12 ++++++++++++
 lib83/string.h |  2 +-
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 lib83/memset.c

diff --git a/Makefile b/Makefile
index 7a2e856..fba1954 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ CC=sdcc
 CFLAGS=-Ilib83 -c -mz80 --std-sdcc2x --no-std-crt0 --reserve-regs-iy --opt-code-size
 
 OBJS=_crt0.rel clrscr.rel putchar.rel puts.rel exit.rel gotoxy.rel __assert_fail.rel \
-     getchar.rel put_int.rel ctype.rel \
+     getchar.rel put_int.rel ctype.rel memcpy.rel memset.rel memmove.rel \
 	 main.rel
 
 .PHONY: all clean try
diff --git a/lib83/memset.c b/lib83/memset.c
new file mode 100644
index 0000000..133538f
--- /dev/null
+++ b/lib83/memset.c
@@ -0,0 +1,12 @@
+
+#include <string.h>
+
+void * memset(void * buf, unsigned char ch, size_t count)  {
+    unsigned char * ret = buf;
+
+    while (count--)
+        *ret++ = ch;
+
+    return buf;
+}
+
diff --git a/lib83/string.h b/lib83/string.h
index c14c339..0268d4c 100644
--- a/lib83/string.h
+++ b/lib83/string.h
@@ -5,7 +5,7 @@
 #include <stddef.h>
 
 extern void *memcpy(void *dest, const void *src, size_t n);
-extern void *memset(void *s, int c, size_t n);
+extern void *memset(void *s, unsigned char c, size_t n);
 extern void *memmove(void *dest, const void *src, size_t n);
 extern int memcmp(const void *s1, const void *s2, size_t n);