FFI: Unify stack setup for C calls in interpreter.

2023-08-29 02:12:13 +02:00
parent 7cc53f0b85
commit cf903edb30
9 changed files with 63 additions and 54 deletions
--- a/src/vm_x64.dasc
+++ b/src/vm_x64.dasc
@@ -2755,12 +2755,12 @@ static void build_subroutines(BuildCtx *ctx)
  |
  |  // Copy stack slots.
  |  movzx ecx, byte CCSTATE->nsp
-  |  sub ecx, 1
+  |  sub ecx, 8
  |  js >2
  |1:
-  |  mov rax, [CCSTATE+rcx*8+offsetof(CCallState, stack)]
-  |  mov [rsp+rcx*8+CCALL_SPS_EXTRA*8], rax
-  |  sub ecx, 1
+  |  mov rax, [CCSTATE+rcx+offsetof(CCallState, stack)]
+  |  mov [rsp+rcx+CCALL_SPS_EXTRA*8], rax
+  |  sub ecx, 8
  |  jns <1
  |2:
  |