refactor vm

2026-04-19 17:23:51 +08:00
parent ca7f7a5ec8
commit e527d31450
14 changed files with 1504 additions and 906 deletions
@@ -0,0 +1,51 @@
+use crate::{BytecodeReader, StepResult};
+
+impl<'gc> crate::Vm<'gc> {
+    #[inline(always)]
+    pub(crate) fn op_jump_if_false(
+        &mut self,
+        reader: &mut BytecodeReader<'_>,
+        mc: &gc_arena::Mutation<'gc>,
+    ) -> StepResult<'gc> {
+        let offset = reader.read_i32();
+        if let Some(step) = self.try_force_resolved(0, reader.inst_start_pc(), mc) {
+            return step;
+        }
+        let cond = self.pop_stack();
+        if cond.as_inline::<bool>() == Some(false) {
+            reader.set_pc(((reader.pc() as isize) + (offset as isize)) as usize);
+        }
+        StepResult::Continue
+    }
+
+    #[inline(always)]
+    pub(crate) fn op_jump_if_true(
+        &mut self,
+        reader: &mut BytecodeReader<'_>,
+        mc: &gc_arena::Mutation<'gc>,
+    ) -> StepResult<'gc> {
+        let offset = reader.read_i32();
+        if let Some(step) = self.try_force_resolved(0, reader.inst_start_pc(), mc) {
+            return step;
+        }
+        let cond = self.pop_stack();
+        if cond.as_inline::<bool>() == Some(true) {
+            reader.set_pc(((reader.pc() as isize) + (offset as isize)) as usize);
+        }
+        StepResult::Continue
+    }
+
+    #[inline(always)]
+    pub(crate) fn op_jump(&mut self, reader: &mut BytecodeReader<'_>) -> StepResult<'gc> {
+        let offset = reader.read_i32();
+        reader.set_pc(((reader.pc() as isize) + (offset as isize)) as usize);
+        StepResult::Continue
+    }
+
+    #[inline(always)]
+    pub(crate) fn op_assert(&mut self, reader: &mut BytecodeReader<'_>) -> StepResult<'gc> {
+        let _raw_idx = reader.read_u32();
+        let _span_id = reader.read_u32();
+        todo!("implement Assert (force TOS)");
+    }
+}