This test piece starts with an entry point that has a stack frame comprising of the MASM default pair, ENTER and LEAVE. The stack frame is created by including one variable as an argument. I have encapsulated the technique in a macro to automate the entry point. The purpose of the test piece was to call nested procs that have no stack frame and it works without the menual stack corrections done with RSP.
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include \masm64\include\masm64rt.inc
appentry MACRO
EXITM <proc anon:QWORD> ;; create stack frame
ENDM
.code
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entry_point appentry()
LOCAL retval :QWORD
invoke bareproc
mov retval, rax
conout lf,"Return value = ",str$(retval),lf,lf
waitkey
void(ExitProcess,0)
ret
entry_point endp
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bareproc proc
; ------------------------
; proc with no stack frame
; ------------------------
LOCAL64 var ; non stack QWORD variable
mov var, 12345678
mov rcx, var
call bareproc2
ret
bareproc endp
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bareproc2 proc
; ------------------------
; proc with no stack frame
; ------------------------
mov rax, rcx
ret
bareproc2 endp
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end
This is the asm dump from ArkAsm.
%define u(x) __utf16__(x)
%define w(x) __utf32__(x)
segment .text
enter 0x40, 0x0
call sub_14000108a
mov qword ptr [rbp-8], rax
mov rcx, qword ptr [rbp-8]
mov rdx, qword ptr [0x140003000]
mov r8d, 0xa
call qword ptr [_i64toa]
mov rcx, qword ptr [0x14000300b]
call 0x1400010b0
movabs rcx, 0x140003013
call 0x1400010b0
mov rcx, qword ptr [0x140003000]
call 0x1400010b0
mov rcx, qword ptr [0x140003026]
call 0x1400010b0
mov rcx, qword ptr [0x140003031]
call 0x1400010b0
mov rcx, qword ptr [0x140003056]
call 0x1400010b0
mov rcx, qword ptr [0x140003061]
call 0x1400010b0
call sub_140001130
xor ecx, ecx
call qword ptr [ExitProcess]
leave
ret
; --------------------------------------------------------------------------
; sub_14000108a
; --------------------------------------------------------------------------
sub_14000108a proc
mov qword ptr [0x140003069], 0xbc614e
mov rcx, qword ptr [0x140003069]
call sub_1400010a2
ret
sub_14000108a endp
; --------------------------------------------------------------------------
; sub_1400010a2
; --------------------------------------------------------------------------
sub_1400010a2 proc
mov rax, rcx
ret
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
0x1400010b0:
enter 0x50, 0x0
mov qword ptr [0x140003080], r12
mov qword ptr [0x140003088], r13
mov qword ptr [0x140003090], r14
mov r12, rcx
mov rcx, -0xb
call qword ptr [GetStdHandle]
mov r13, rax
mov rax, r12
sub rax, 0x1
0x1400010e3:
add rax, 0x1
cmp byte ptr [rax], 0x0
jne 0x1400010e3
sub rax, r12
mov r14, rax
mov rcx, r13
mov rdx, r12
mov r8, r14
lea r9, [rbp-0x10]
and qword ptr [rbp-0x30], 0x0
call qword ptr [WriteFile]
mov rax, qword ptr [rbp-0x10]
mov r12, qword ptr [0x140003080]
mov r13, qword ptr [0x140003088]
mov r14, qword ptr [0x140003090]
leave
ret
sub_1400010a2 endp
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
int3
; --------------------------------------------------------------------------
; sub_140001130
; --------------------------------------------------------------------------
sub_140001130 proc
enter 0x40, 0x0
mov rcx, -0xa
call qword ptr [GetStdHandle]
mov rcx, rax
call qword ptr [FlushConsoleInputBuffer]
0x14000114a:
mov ecx, 0x1
xor edx, edx
call qword ptr [SleepEx]
call qword ptr [_kbhit]
test rax, rax
je 0x14000114a
call qword ptr [_getch]
leave
ret
sub_140001130 endp