André Hentschel : vcomp: Add ARM support.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3ad5a07856e8fb9a99e5be78b400c09966e28e93
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=3ad5a07856e8fb9a99e5be78b4...

Author: André Hentschel 
Date:   Sun Aug  9 14:08:23 2015 +0200

vcomp: Add ARM support.

---

dlls/vcomp/main.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/dlls/vcomp/main.c b/dlls/vcomp/main.c
index 10ac465..8143020 100644
--- a/dlls/vcomp/main.c
+++ b/dlls/vcomp/main.c
@@ -189,6 +189,42 @@ __ASM_GLOBAL_FUNC( _vcomp_fork_call_wrapper,
                    __ASM_CFI(".cfi_same_value %rbp\n\t")
                    "ret")

+#elif defined(__arm__)
+
+extern void CDECL _vcomp_fork_call_wrapper(void *wrapper, int nargs, __ms_va_list args);
+__ASM_GLOBAL_FUNC( _vcomp_fork_call_wrapper,
+                   ".arm\n\t"
+                   "push {r4, r5, LR}\n\t"
+                   "mov r4, r0\n\t"
+                   "mov r5, SP\n\t"
+                   "lsl r3, r1, #2\n\t"
+                   "cmp r3, #0\n\t"
+                   "beq 5f\n\t"
+                   "sub SP, SP, r3\n\t"
+                   "tst r1, #1\n\t"
+                   "subeq SP, SP, #4\n\t"
+                   "1:\tsub r3, r3, #4\n\t"
+                   "ldr r0, [r2, r3]\n\t"
+                   "str r0, [SP, r3]\n\t"
+                   "cmp r3, #0\n\t"
+                   "bgt 1b\n\t"
+                   "cmp r1, #1\n\t"
+                   "bgt 2f\n\t"
+                   "pop {r0}\n\t"
+                   "b 5f\n\t"
+                   "2:\tcmp r1, #2\n\t"
+                   "bgt 3f\n\t"
+                   "pop {r0-r1}\n\t"
+                   "b 5f\n\t"
+                   "3:\tcmp r1, #3\n\t"
+                   "bgt 4f\n\t"
+                   "pop {r0-r2}\n\t"
+                   "b 5f\n\t"
+                   "4:\tpop {r0-r3}\n\t"
+                   "5:\tblx r4\n\t"
+                   "mov SP, r5\n\t"
+                   "pop {r4, r5, PC}" )
+
 #else

static void CDECL _vcomp_fork_call_wrapper(void *wrapper, int nargs, __ms_va_list args)