| 0,0 → 1,164 |
|---|
| |
| |
| ; esi is ptr to nick |
| ; ebx is ptr to window |
| align 4 |
| user_add: |
| |
| cmp [ebx + window.users], MAX_USERS |
| jae fail |
| |
| mov edi, [ebx + window.data_ptr] |
| add edi, window_data.names |
| mov ebp, [ebx + window.users] |
| inc ebp ; CHECKME |
| |
| push esi edi |
| .restart: |
| mov ecx, MAX_NICK_LEN |
| .loop1: |
| lodsb |
| cmp al, '@' |
| jne @f |
| mov al, ' ' ; give @ highest priority |
| @@: |
| cmp al, 'A' |
| jb @f |
| cmp al, 'Z' |
| ja @f |
| add al, 'a' - 'A' ; convert to lowercase |
| @@: |
| dec ecx |
| jz .got_it |
| |
| .loop2: |
| mov dl, [edi] |
| cmp dl, 0 |
| je .got_it |
| cmp dl, '@' |
| jne @f |
| mov dl, ' ' ; give @ highest priority |
| @@: |
| cmp dl, 'A' |
| jb @f |
| cmp dl, 'Z' |
| ja @f |
| add dl, 'a' - 'A' ; convert to lowercase |
| @@: |
| cmp al, dl |
| jb .got_it |
| je .check_next |
| |
| pop edi esi |
| add edi, MAX_NICK_LEN |
| push esi edi |
| |
| dec ebp |
| jnz .restart |
| |
| .check_next: |
| inc edi |
| jmp .loop1 |
| |
| .got_it: |
| pop edi esi |
| |
| ; OK, insert it here.. |
| |
| ; mov all trailing usernames by MAX_NICK_LEN bytes |
| push esi edi |
| mov esi, [ebx + window.data_ptr] |
| add esi, window_data.names + MAX_NICK_LEN * (MAX_USERS - 1) |
| |
| mov ecx, esi |
| sub ecx, edi |
| add ecx, MAX_NICK_LEN |
| shr ecx, 2 |
| lea edi, [esi + MAX_NICK_LEN] |
| std |
| rep movsd |
| cld |
| pop edi esi |
| |
| ; Now insert our new username |
| mov ecx, MAX_NICK_LEN-1 |
| .fill: |
| lodsb |
| cmp al, ' ' |
| je .done |
| cmp al, '!' |
| je .done |
| stosb |
| loop .fill |
| .done: |
| xor al, al |
| stosb |
| |
| inc [ebx + window.users] |
| |
| ret |
| |
| |
| |
| |
| |
| ; esi is ptr to nick |
| ; ebx is ptr to window |
| align 4 |
| user_remove: |
| |
| call user_find |
| jz fail |
| |
| lea esi, [edi + MAX_NICK_LEN] |
| mov ecx, [ebx + window.data_ptr] |
| add ecx, window_data.names + MAX_NICK_LEN * MAX_USERS |
| sub ecx, esi |
| shr ecx, 2 |
| rep movsd |
| |
| dec [ebx + window.users] |
| xor eax, eax |
| |
| ret |
| |
| |
| |
| ; IN: |
| ; esi is ptr to nick |
| ; ebx is ptr to window |
| ; OUT: |
| ; edi is ptr to nick in userlist |
| align 4 |
| user_find: |
| |
| mov eax, [ebx + window.users] |
| test eax, eax |
| jz fail |
| mov edi, [ebx + window.data_ptr] |
| add edi, window_data.names |
| |
| .loop: |
| push esi edi |
| mov ecx, MAX_NICK_LEN |
| repe cmpsb |
| cmp byte[edi-1], 0 |
| je .got_it |
| ; TODO: check byte[esi] too! |
| pop edi esi |
| add edi, MAX_NICK_LEN |
| dec eax |
| jnz .loop |
| jmp fail |
| |
| .got_it: |
| pop edi esi |
| test edi, edi ; to clear zero flag |
| |
| ret |
| |
| |
| fail: |
| |
| xor edi, edi |
| ret |