stage0 新增内存复制指令 重构vm交互

stage0/spl_rt.h

@@ -87,32 +87,4 @@ SPL_FN u64 vm_timestamp(u64 kind) {
 #define SPL_VM_EMBED_IMPLIMENTATION
 #include "spl_vm_embed.h"
 
-/* 配置层外部函数处理器（native 端）：把 nested VM 未解析的 native 按名分发到
- * 编译器生成的 `ct_*` 函数（表由 ir2c 生成，见 stage2/ir2c.spl）。 */
-extern void *spl_ct_lookup(const char *name);
-
-typedef spl_vm_val_t (*spl_native_ct_fn_t)(void *, spl_vm_val_t, spl_vm_val_t, spl_vm_val_t);
-
-SPL_FN spl_vm_val_t spl_native_foreign(spl_vm_t *vm, const spl_vm_call_t *call, void *user) {
-    void *fn;
-    spl_vm_val_t a0 = 0, a1 = 0;
-    (void)vm;
-    if (!call)
-        return 0;
-    fn = spl_ct_lookup(call->name);
-    if (!fn)
-        return 0;
-    if (call->nargs > 0)
-        a0 = call->args[0];
-    if (call->nargs > 1)
-        a1 = call->args[1];
-    /* ct_* 统一形状：返回 u64，参数 (ctx, u64, u64)；多余参数被忽略。 */
-    return ((spl_native_ct_fn_t)fn)(user, a0, a1, 0);
-}
-
-SPL_FN void vm_set_foreign(void *p, unsigned long long handler, void *ctx) {
-    (void)handler;
-    spl_vm_set_foreign((spl_vm_t *)p, spl_native_foreign, ctx);
-}
-
 #endif /* __SPL_RT_H__ */