stage0 新增内存复制指令 重构vm交互

stage2/sys/vm.spl

@@ -8,6 +8,13 @@ type spl_vm_val_t = u64; // usize
 #extern(vm) fn vm_load_from_buffer(vm: *any, buf: *any, len: usize): i32;
 
 #extern(vm) fn vm_push(vm: *any, val: spl_vm_val_t): void;
-// TODO
+#extern(vm) fn vm_call(vm: *any, name: *u8, nargs: u64): i32;
+#extern(vm) fn vm_run(vm: *any): i32;
+#extern(vm) fn vm_ret_val(vm: *any): spl_vm_val_t;
+#extern(vm) fn vm_mem_alloc(vm: *any, size: usize): spl_vm_val_t;
+#extern(vm) fn vm_mem_read(vm: *any, off: spl_vm_val_t, dst: *any, n: usize): i32;
+#extern(vm) fn vm_mem_write(vm: *any, off: spl_vm_val_t, src: *any, n: usize): i32;
+#extern(vm) fn vm_stack_get(vm: *any, index: usize): spl_vm_val_t;
+#extern(vm) fn vm_set_foreign(vm: *any, entry: []u8, ctx: u64): i32;
 
 fn main() {}