# 80×86 Architecture: Windows Portable Executable Format

Assembler code

```
.text:00401236
.text:00401236 ; =============== S U B R O U T I N E =======================================
.text:00401236
.text:00401236 ; Attributes: bp-based frame
.text:00401236
.text:00401236 ; void __cdecl sub_401236()
.text:00401236 sub_401236      proc near               ; DATA XREF: start+DB↑o
.text:00401236
.text:00401236 var_1C          = dword ptr -1Ch
.text:00401236 ms_exc          = CPPEH_RECORD ptr -18h
.text:00401236
.text:00401236 ; __unwind { // __SEH_prolog
.text:00401236                 push    0Ch
.text:00401238                 push    offset stru_402078
.text:0040123D                 call    __SEH_prolog
.text:00401242                 mov     [ebp+var_1C], offset unk_4020E0
.text:00401249
.text:00401249 loc_401249:                             ; CODE XREF: sub_401236+3C↓j
.text:00401249                 cmp     [ebp+var_1C], offset unk_4020E0
.text:00401250                 jnb     short loc_401274
.text:00401252 ;   __try { // __except at loc_401267
.text:00401252                 and     [ebp+ms_exc.registration.TryLevel], 0
.text:00401256                 mov     eax, [ebp+var_1C]
.text:00401259                 mov     eax, [eax]
.text:0040125B                 test    eax, eax
.text:0040125D                 jz      short loc_40126A
.text:0040125F                 call    eax
.text:00401261                 jmp     short loc_40126A
.text:00401263 ; ---------------------------------------------------------------------------
.text:00401263
.text:00401263 loc_401263:                             ; DATA XREF: .rdata:stru_402078↓o
.text:00401263 ;   __except filter // owned by 401252
.text:00401263                 xor     eax, eax
.text:00401265                 inc     eax
.text:00401266                 retn
```


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