From 339a1fd69611e2fd084127ee11a36e57035639d1 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Mon, 22 Feb 2016 19:14:20 +0100
Subject: [PATCH] Windows/x64/LJ_GC64: Fix math.frexp() and math.modf().

Thanks to Eddie Edwards.
---
 src/vm_x64.dasc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/vm_x64.dasc b/src/vm_x64.dasc
index bba89aaf..ad50fa18 100644
--- a/src/vm_x64.dasc
+++ b/src/vm_x64.dasc
@@ -1804,7 +1804,11 @@ static void build_subroutines(BuildCtx *ctx)
   |  jmp ->fff_res1
   |
   |.ffunc_n math_frexp
+  |.if X64WIN
+  |  lea CARG2, TMP1
+  |.else
   |  lea CARG1, TMP1
+  |.endif
   |  mov RB, BASE
   |  call extern frexp
   |  mov BASE, RB
@@ -1822,7 +1826,11 @@ static void build_subroutines(BuildCtx *ctx)
   |  jmp ->fff_res
   |
   |.ffunc_n math_modf
+  |.if X64WIN
+  |  lea CARG2, [BASE-16]
+  |.else
   |  lea CARG1, [BASE-16]
+  |.endif
   |  mov PC, [BASE-8]
   |  mov RB, BASE
   |  call extern modf