| 3480,6 → 3480,11 |
|---|
| ret |
| ;----------------------------------------------------------------------------- |
| |
| ; in: eax = port |
| ; ebp = subfunction |
| ; 0 - set access |
| ; 1 - clear access |
| ; out: not return value |
| align 4 |
| set_io_access_rights: |
| push edi eax |
| 3490,8 → 3495,7 |
|---|
| ; add edi,eax |
| ; mov ebx,1 |
| ; shl ebx,cl |
| test ebp, ebp |
| ; cmp ebp,0 ; enable access - ebp = 0 |
| test ebp, ebp ; enable access - ebp = 0 |
| jnz .siar1 |
| ; not ebx |
| ; and [edi],byte bl |
| 3499,8 → 3503,7 |
|---|
| pop eax edi |
| ret |
| .siar1: |
| bts [edi], eax |
| ; or [edi],byte bl ; disable access - ebp = 1 |
| bts [edi], eax ; disable access - ebp = 1 |
| pop eax edi |
| ret |
| |
| 3526,13 → 3529,7 |
|---|
| |
| test ebx, ebx |
| jnz free_port_area |
| ; je r_port_area |
| ; jmp free_port_area |
| |
| ; r_port_area: |
| |
| ; pushad |
| |
| cmp ecx, edx ; beginning > end ? |
| ja rpal1 |
| cmp edx, 65536 |
| 3550,43 → 3547,32 |
|---|
| ja rpal4 |
| cmp edx, [ebx+4] |
| jae rpal1 |
| ; jb rpal4 |
| ; jmp rpal1 |
| rpal4: |
| dec eax |
| jnz rpal3 |
| jmp rpal2 |
| rpal1: |
| ; popad |
| ; mov eax,1 |
| xor eax, eax |
| inc eax |
| ret |
| rpal2: |
| ; popad |
| ; enable port access at port IO map |
| cli |
| pushad ; start enable io map |
| |
| cmp edx, 65536;16384 |
| jae no_unmask_io; jge |
| mov eax, ecx |
| ; push ebp |
| xor ebp, ebp ; enable - eax = port |
| cli |
| new_port_access: |
| ; pushad |
| call set_io_access_rights |
| ; popad |
| |
| inc eax |
| cmp eax, edx |
| jbe new_port_access |
| ; pop ebp |
| no_unmask_io: |
| sti |
| popad ; end enable io map |
| sti |
| |
| mov eax, [RESERVED_PORTS] |
| add eax, 1 |
| inc eax |
| mov [RESERVED_PORTS], eax |
| shl eax, 4 |
| add eax, RESERVED_PORTS |
| 3601,7 → 3587,6 |
|---|
| |
| free_port_area: |
| |
| ; pushad |
| mov eax, [RESERVED_PORTS]; no reserved areas ? |
| test eax, eax |
| jz frpal2 |
| 3622,7 → 3607,6 |
|---|
| dec eax |
| jnz frpal3 |
| frpal2: |
| ; popad |
| inc eax |
| ret |
| frpal1: |
| 3636,27 → 3620,21 |
|---|
| rep movsb |
| |
| dec dword [RESERVED_PORTS] |
| ;popad |
| ;disable port access at port IO map |
| |
| ; pushad ; start disable io map |
| ; start disable io map |
| pop eax ;start port |
| cmp edx, 65536;16384 |
| jge no_mask_io |
| ;cmp edx, 65536 |
| ;jge no_mask_io |
| |
| ; mov eax,ecx |
| xor ebp, ebp |
| inc ebp |
| new_port_access_disable: |
| ; pushad |
| ; mov ebp,1 ; disable - eax = port |
| new_port_access_disable: ; disable - eax = port |
| call set_io_access_rights |
| ; popad |
| |
| inc eax |
| cmp eax, edx |
| jbe new_port_access_disable |
| no_mask_io: |
| ; popad ; end disable io map |
| no_mask_io: ; end disable io map |
| xor eax, eax |
| ret |
| ;----------------------------------------------------------------------------- |