DWORD dwChatFunc = ((DWORD)GetModuleHandle("samp.dll") + 0x5F890);
DWORD dwChatPtr = ((DWORD)GetModuleHandle("samp.dll") + 0x2071C0);

CPU Disasm
Address   Hex dump          Command                                  Comments
03DEF890    55              PUSH EBP
03DEF891    8BEC            MOV EBP,ESP
03DEF893    83E4 F8         AND ESP,FFFFFFF8
03DEF896    81EC 04020000   SUB ESP,204
03DEF89C    57              PUSH EDI
03DEF89D    33C0            XOR EAX,EAX
03DEF89F    B9 80000000     MOV ECX,80
03DEF8A4    8D7C24 08       LEA EDI,[ESP+8]
03DEF8A8    F3:AB           REP STOS DWORD PTR ES:[EDI]
03DEF8AA    8B4D 0C         MOV ECX,DWORD PTR SS:[EBP+0C]
03DEF8AD    8D45 10         LEA EAX,[EBP+10]
03DEF8B0    50              PUSH EAX
03DEF8B1    51              PUSH ECX
03DEF8B2    8D5424 10       LEA EDX,[ESP+10]
03DEF8B6    52              PUSH EDX
03DEF8B7    E8 A88D0400     CALL 03E38664
03DEF8BC    8A4C24 14       MOV CL,BYTE PTR SS:[ESP+14]
03DEF8C0    83C4 0C         ADD ESP,0C
03DEF8C3    84C9            TEST CL,CL
03DEF8C5    8D4424 08       LEA EAX,[ESP+8]
03DEF8C9    74 1B           JE SHORT 03DEF8E6
03DEF8CB    EB 03           JMP SHORT 03DEF8D0
03DEF8CD    8D49 00         LEA ECX,[ECX]
03DEF8D0    8A08            MOV CL,BYTE PTR DS:[EAX]
03DEF8D2    84C9            TEST CL,CL
03DEF8D4    7E 08           JLE SHORT 03DEF8DE
03DEF8D6    80F9 20         CMP CL,20
03DEF8D9    7D 03           JGE SHORT 03DEF8DE
03DEF8DB    C600 20         MOV BYTE PTR DS:[EAX],20
03DEF8DE    8A48 01         MOV CL,BYTE PTR DS:[EAX+1]
03DEF8E1    40              INC EAX
03DEF8E2    84C9            TEST CL,CL
03DEF8E4  ^ 75 EA           JNE SHORT 03DEF8D0
03DEF8E6    8B4D 08         MOV ECX,DWORD PTR SS:[EBP+8]
03DEF8E9    8B41 08         MOV EAX,DWORD PTR DS:[ECX+8]
03DEF8EC    6A 00           PUSH 0
03DEF8EE    50              PUSH EAX
03DEF8EF    6A 00           PUSH 0
03DEF8F1    8D5424 14       LEA EDX,[ESP+14]
03DEF8F5    52              PUSH EDX
03DEF8F6    6A 0F           PUSH 0F
03DEF8F8    E8 93FAFFFF     CALL 03DEF390
03DEF8FD    5F              POP EDI
03DEF8FE    8BE5            MOV ESP,EBP
03DEF900    5D              POP EBP
03DEF901    C3              RETN