kolibrios/programs/media/zsea/dll.inc
Marat Zakiyanov (Mario79) d7b0867c02 zSea - advanced image viewer for KolibriOS
v.1.0 rс3 12.06.2011

git-svn-id: svn://kolibrios.org@1951 a494cfbc-eb01-0410-851d-a64ba20cac60
2011-06-11 22:16:26 +00:00

144 lines
2.6 KiB
PHP

;-----------------------------------------------------------------------------
proc dll.Load, import_table:dword
mov esi,[import_table]
.next_lib:
mov edx,[esi]
or edx,edx
jz .exit
push esi
mov esi,[esi+4]
mov edi,s_libdir.fname
@@:
lodsb
stosb
or al,al
jnz @b
mcall 68,19,s_libdir
or eax,eax
jz .fail
stdcall dll.Link,eax,edx
stdcall dll.Init,[eax+4]
pop esi
add esi,8
jmp .next_lib
.exit:
xor eax,eax
ret
.fail:
add esp,4
xor eax,eax
inc eax
ret
endp
;-----------------------------------------------------------------------------
proc dll.Link, exp:dword,imp:dword
push eax
mov esi,[imp]
test esi,esi
jz .done
.next:
lodsd
test eax,eax
jz .done
stdcall dll.GetProcAddress,[exp],eax
or eax,eax
jz @f
mov [esi-4],eax
jmp .next
@@:
mov dword[esp],0
.done:
pop eax
ret
endp
;-----------------------------------------------------------------------------
proc dll.Init, dllentry:dword
pushad
mov eax,mem.Alloc ;libini_alloc
mov ebx,mem.Free ;libini_free
mov ecx,mem.ReAlloc ;libini_realloc
mov edx,dll.Load
stdcall [dllentry]
popad
ret
endp
;-----------------------------------------------------------------------------
proc dll.GetProcAddress, exp:dword,sz_name:dword
mov edx,[exp]
xor eax,eax
.next:
or edx,edx
jz .end
cmp dword[edx],0
jz .end
stdcall strcmp,[edx],[sz_name]
test eax,eax
jz .ok
add edx,8
jmp .next
.ok:
mov eax,[edx+4]
.end:
ret
endp
;-----------------------------------------------------------------------------
proc strcmp, str1:dword,str2:dword
push esi edi
mov esi,[str1]
mov edi,[str2]
xor eax,eax
@@:
lodsb
scasb
jne .fail
or al,al
jnz @b
jmp .ok
.fail:
or eax,-1
.ok:
pop edi esi
ret
endp
;-----------------------------------------------------------------------------
s_libdir:
db '/sys/lib/'
.fname rb 32
;-----------------------------------------------------------------------------
proc mem.Alloc,size
push ebx ecx
mov ecx,[size]
mcall 68,12
pop ecx ebx
ret
endp
;-----------------------------------------------------------------------------
proc mem.ReAlloc,mptr,size
push ebx ecx edx
mov ecx,[size]
or ecx,ecx
jz @f
@@:
mov edx,[mptr]
or edx,edx
jz @f
@@:
mcall 68,20
or eax,eax
jz @f
@@:
pop edx ecx ebx
ret
endp
;-----------------------------------------------------------------------------
proc mem.Free,mptr
push ebx ecx
mov ecx,[mptr]
or ecx,ecx
jz @f
@@:
mcall 68,13
pop ecx ebx
ret
endp
;-----------------------------------------------------------------------------