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115 lines
1.9 KiB
ArmAsm
115 lines
1.9 KiB
ArmAsm
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#ifdef _M_ARM
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#include <kxarm.h>
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LEAF_ENTRY call_method
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__assertfail
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LEAF_END call_method
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#elif defined(_M_AMD64)
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#include <asm.inc>
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.code64
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EXTERN __chkstk:PROC
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// DWORD_PTR
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// call_method(
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// void *func, // rcx
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// int nb_args, // edx
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// const DWORD_PTR *args );
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PUBLIC call_method
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FUNC call_method
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push rbp
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.PUSHREG rbp
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push rsi
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.PUSHREG rsi
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push rdi
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.PUSHREG rdi
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mov rbp, rsp
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.SETFRAME rbp, 0
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.ENDPROLOG
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// We need at least space for 4 parameters (home space)
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mov rax, 4
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cmp rdx, rax
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cmovg rax, rdx
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// Allocate dynamic stack space (aligned to 16 bytes)
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lea rax, [rax * 8 + 15]
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and rax, HEX(0FFFFFFFFFFFFFFF0)
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call __chkstk
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sub rsp, rax
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// Save function pointer in rax
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mov rax, rcx
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// Copy parameters to the stack
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mov rcx, rdx
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mov rdi, rsp
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mov rsi, r8
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rep movsq
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// Set up parameter registers for the call
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mov rcx, qword ptr [rsp + 0]
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mov rdx, qword ptr [rsp + 8]
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mov r8, qword ptr [rsp + 16]
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mov r9, qword ptr [rsp + 24]
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movq xmm0, qword ptr [rsp + 0]
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movq xmm1, qword ptr [rsp + 8]
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movq xmm2, qword ptr [rsp + 16]
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movq xmm3, qword ptr [rsp + 24]
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call rax
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lea rsp, [rbp]
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pop rdi
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pop rsi
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pop rbp
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ret
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ENDFUNC
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PUBLIC call_double_method
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call_double_method:
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jmp call_method
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#else
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#include <asm.inc>
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.code32
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PUBLIC _call_method
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_call_method:
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push ebp
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mov ebp, esp
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push esi
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push edi
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mov edx, dword ptr ds:[ebp + 12]
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mov edi, esp
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shl edx, 2
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jz cm1
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sub edi, edx
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and edi, HEX(0FFFFFFF0)
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mov esp, edi
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mov ecx, dword ptr ds:[ebp + 12]
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mov esi, dword ptr ds:[ebp + 16]
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cld
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rep movsd
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cm1:
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call dword ptr ds:[ebp + 8]
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sub edi, esp
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mov ecx,[ebp + 20]
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mov [ecx], edi
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lea esp, [ebp - 8]
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pop edi
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pop esi
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pop ebp
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ret
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PUBLIC _call_double_method
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_call_double_method:
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jmp _call_method
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#endif
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END
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