Kernel: We can create basic userspace processes

These are still allocated on the kernel memory

kernel/userspace/userspace.cpp

@@ -1,28 +1,12 @@
 #include <BAN/Formatter.h>
 #include <kernel/Syscall.h>
 
+#include <unistd.h>
+
 #define USERSPACE __attribute__((section(".userspace")))
 
-USERSPACE int syscall(int syscall, void* arg1 = nullptr, void* arg2 = nullptr, void* arg3 = nullptr)
-{
-	int ret;
-	asm volatile("int $0x80" : "=a"(ret) : "a"(syscall), "b"(arg1), "c"(arg2), "d"(arg3) : "memory");
-	return ret;
-}
-
-USERSPACE void user_putc(char ch)
-{
-	syscall(SYS_PUTC, (void*)(uintptr_t)ch);
-}
-
-USERSPACE void print(const char* str)
-{
-	while (*str)
-		user_putc(*str++);
-}
-
 USERSPACE void userspace_entry()
 {
-	BAN::Formatter::println(user_putc, "Hello {}!", "World");
-	for (;;);
+	Kernel::syscall(SYS_WRITE, STDOUT_FILENO, "Hello World!", 12);
+	Kernel::syscall(SYS_EXIT);
 }