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;
; Copyright (C) 2019 Intel Corporation. All rights reserved.
; SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
;
_TEXT SEGMENT
; rcx func_ptr
; rdx argv
; r8 n_stacks
invokeNative PROC
push rbp
mov rbp, rsp
mov r10, rcx ; func_ptr
mov rax, rdx ; argv
mov rcx, r8 ; n_stacks
; fill all fp args
movsd xmm0, qword ptr [rax + 0]
movsd xmm1, qword ptr [rax + 8]
movsd xmm2, qword ptr [rax + 16]
movsd xmm3, qword ptr [rax + 24]
; check for stack args
cmp rcx, 0
jz cycle_end
mov rdx, rsp
and rdx, 15
jz no_abort
int 3
no_abort:
mov rdx, rcx
and rdx, 1
shl rdx, 3
sub rsp, rdx
; store stack args
lea r9, qword ptr [rax + rcx * 8 + 56]
sub r9, rsp ; offset
cycle:
push qword ptr [rsp + r9]
loop cycle
cycle_end:
mov rcx, [rax + 32]
mov rdx, [rax + 40]
mov r8, [rax + 48]
mov r9, [rax + 56]
sub rsp, 32 ; shadow space
call r10
leave
ret
invokeNative ENDP
_TEXT ENDS
END
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