7 files changed, 71 insertions, 7 deletions
diff --git a/src/base/mem/arena.c b/src/base/mem/arena.c
index b2ce044..37e7b56 100644
--- a/src/base/mem/arena.c
+++ b/src/base/mem/arena.c
@@ -25,15 +25,13 @@ struct mem·Arena
     struct Block first;
 };
 
-static
-void*
+static void*
 ·arenaalloc(void *heap, uint n, ulong size)
 {
     return mem·arenaalloc(heap, n, size);
 }
 
-static
-void
+static void
 ·arenafree(void *heap, void *ptr)
 {
     /* no-op */
@@ -45,8 +43,7 @@ mem·Allocator mem·ArenaAllocator = {
 };
 
 
-static
-void
+static void
 grow(mem·Arena *a, vlong min)
 {
     uintptr size;
diff --git a/src/base/mem/copy.c b/src/base/mem/copy.c
new file mode 100644
index 0000000..5ce4f90
--- /dev/null
+++ b/src/base/mem/copy.c
@@ -0,0 +1,14 @@
+#include "internal.h"
+
+int
+mem·copy(void *dst, void *src, uintptr len)
+{
+    char *d, *s;
+    if((long)len < 0)
+        return 1;
+
+    d=dst, s=src;
+    while(len-- > 0)
+        *d++ = *s++;
+    return 0;
+}
diff --git a/src/base/mem/findc.c b/src/base/mem/findc.c
new file mode 100644
index 0000000..d3215c5
--- /dev/null
+++ b/src/base/mem/findc.c
@@ -0,0 +1,14 @@
+#include "internal.h"
+
+void *
+mem·findc(void *addr, uintptr len, int c)
+{
+    uchar *a = addr;
+
+    c &= 0xFF;
+    while(len-- > 0){
+        if(*a++ == c)
+            return a-1;
+    }
+    return nil;
+}
diff --git a/src/base/mem/move.c b/src/base/mem/move.c
new file mode 100644
index 0000000..5ad4074
--- /dev/null
+++ b/src/base/mem/move.c
@@ -0,0 +1,22 @@
+#include "internal.h"
+
+int
+mem·move(void *dst, void *src, uintptr len)
+{
+    char *d, *s;
+    if((long)len < 0)
+        return 1;
+
+    d=dst, s=src;
+    if((s < d) && (s+len > d))
+        goto aliased;
+    while(len-- > 0)
+        *d++ = *s++;
+    return 0;
+
+aliased:
+    d+=len, s+=len;
+    while(len-- > 0)
+        *--d = *--s;
+    return 0;
+}
diff --git a/src/base/mem/rules.mk b/src/base/mem/rules.mk
index b912d0c..fda54e1 100644
--- a/src/base/mem/rules.mk
+++ b/src/base/mem/rules.mk
@@ -2,4 +2,7 @@ SRCS_$(d)+=\
 	$(d)/mem/arena.c\
 	$(d)/mem/buffer.c\
 	$(d)/mem/interface.c\
+	$(d)/mem/set.c\
 	$(d)/mem/set64.c\
+	$(d)/mem/copy.c\
+	$(d)/mem/move.c
diff --git a/src/base/mem/set.c b/src/base/mem/set.c
new file mode 100644
index 0000000..2e296be
--- /dev/null
+++ b/src/base/mem/set.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+
+int
+mem·set(void *addr, int c, uintptr len)
+{
+    char *a = addr;
+
+    while(len-- > 0)
+        *a++ = c;
+
+    return 0;
+}
diff --git a/src/base/mem/set64.c b/src/base/mem/set64.c
index 464b3ad..7000866 100644
--- a/src/base/mem/set64.c
+++ b/src/base/mem/set64.c
@@ -1,6 +1,6 @@
 #include "internal.h"
 
-void
+int
 mem·set64(void *dst, uint64 val, uintptr size)
 {
     intptr i;
@@ -10,4 +10,6 @@ mem·set64(void *dst, uint64 val, uintptr size)
 
     for(; i < size; i++)
         ((byte*)dst)[i] = ((byte*)&val)[i&7];
+
+    return 0;
 }