basic memory functions

src/memory/brk.c

@@ -0,0 +1,37 @@
+// this code is licenced under Wrathmark licence
+// © 2026 wullie wulliestudio.com 
+// please see attached licence for full usage and rights
+
+#include "stdWullie/memory/brk.h"
+#include "stdWullie/exit.h"
+#include "LocalHeader.h"
+
+int brk(void *address){
+	
+	long result = syscall1(SYS_brk, (long)address);
+	if((void*)result == address){
+		return 0;
+	}
+	return -1;
+}
+
+void *sbrk(intptr_t incrament){	
+
+	// gets the last break point and checks whether we just wanted that or do something else
+	void *prevBrk = (void *)syscall1(SYS_brk, 0);
+	if(incrament == 0){
+		return prevBrk;
+	}
+
+	// something else
+	void *newBrk = (char *)prevBrk + incrament;
+
+	long result = syscall1(SYS_brk, (long)newBrk);
+
+	if((void *)result != newBrk){
+		safeError("FAULT IN ALLOCATING NEW BREAK");
+	}
+
+	// pointer to the start of the new memory
+	return prevBrk;
+}