kolibrios/drivers/usb/usbftdi/linkedlist.inc
gtament 81384e65b4 Minor driver changes. Also fixed offset mistakes
git-svn-id: svn://kolibrios.org@4979 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-06-17 17:43:10 +00:00

49 lines
771 B
PHP

head dd 0
node equ ftdi_context
node.next equ ftdi_context.next_context
linkedlist:
.add:
push ebx
mov ebx, [head]
mov [head], eax
mov [eax + node.next], ebx
pop ebx
ret
.delete:
push ebx ecx
mov ebx, eax ; eax - pointer to node for delete
cmp eax, [head]
jz .unlink_head
.getnext:
cmp [ebx+node.next], eax
jz .unlink
cmp [ebx+node.next], 0
jz .invalid_pointer
mov ebx, [ebx+node.next]
jmp .getnext
.unlink:
mov ecx, [eax+node.next]
mov [ebx+node.next], ecx
jmp @f
.unlink_head:
mov ebx, [eax+node.next]
mov [head], ebx
@@:
mov ecx, eax
call Kfree
.invalid_pointer:
pop ecx ebx
ret
.gethead:
mov eax, [head]
ret
restore node
restore node.next