Add initial project files (excluding ignored content)

external/safetyhook/src/mid_hook.x86_32.asm

@@ -0,0 +1,60 @@
+bits 32
+
+; save context
+push dword [trampoline]
+push esp ; push trampoline esp
+push esp ; push original esp (this gets fixed later)
+push ebp
+push eax
+push ebx
+push ecx
+push edx
+push esi
+push edi
+pushfd
+sub esp, 128
+movdqu [esp+112], xmm7
+movdqu [esp+96], xmm6
+movdqu [esp+80], xmm5
+movdqu [esp+64], xmm4
+movdqu [esp+48], xmm3
+movdqu [esp+32], xmm2
+movdqu [esp+16], xmm1
+movdqu [esp], xmm0
+
+; fix stored esp.
+mov ecx, [esp+160]
+add ecx, 8
+mov [esp+160], ecx
+
+; call destination
+push esp
+call [destination]
+add esp, 4
+
+; restore context
+movdqu xmm0, [esp]
+movdqu xmm1, [esp+16]
+movdqu xmm2, [esp+32]
+movdqu xmm3, [esp+48]
+movdqu xmm4, [esp+64]
+movdqu xmm5, [esp+80]
+movdqu xmm6, [esp+96]
+movdqu xmm7, [esp+112]
+add esp, 128
+popfd
+pop edi
+pop esi
+pop edx
+pop ecx
+pop ebx
+pop eax
+pop ebp
+lea esp, [esp+4] ; skip original esp
+pop esp
+ret
+
+destination:
+dd 0
+trampoline:
+dd 0