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_ppc.dasc
+++ b/src/vm_ppc.dasc
@@ -3269,14 +3269,13 @@ static void build_subroutines(BuildCtx *ctx)
  |    stw TMP0, 4(sp)
  |   cmpwi cr1, CARG3, 0
  |  mr TMP2, sp
-  |   addic. CARG2, CARG2, -1
+  |   addic. CARG2, CARG2, -4
  |  stwux sp, sp, TMP1
  |   crnot 4*cr1+eq, 4*cr1+eq		// For vararg calls.
  |  stw r14, -4(TMP2)
  |  stw CCSTATE, -8(TMP2)
  |  mr r14, TMP2
  |  la TMP1, CCSTATE->stack
-  |   slwi CARG2, CARG2, 2
  |   blty >2
  |  la TMP2, 8(sp)
  |1: