| 37,37 → 37,42 |
|---|
| |
| proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
| |
| push ebx |
| push edi |
| |
| mov ecx, [size] |
| add ecx, 4095 |
| and ecx, -4096 |
| mov [size], ecx |
| xor edx, edx |
| call @mem_alloc@8 |
| mov eax, [size] |
| add eax, 4095 |
| and eax, -4096 |
| mov [size], eax |
| stdcall alloc_kernel_space, eax |
| test eax, eax |
| jz .fail |
| push eax |
| |
| mov edx, eax |
| mov edi, eax |
| shr edi, 10 |
| add edi, page_tabs |
| |
| mov edi, 0x1000 |
| mov ebx, eax |
| mov ecx, [size] |
| mov edx, [base] |
| shr eax, 12 |
| shr ecx, 12 |
| mov eax, [base] |
| and eax, -4096 |
| or eax, [flags] |
| and edx, -4096 |
| or edx, [flags] |
| @@: |
| stosd |
| add eax, 0x1000 |
| mov [page_tabs+eax*4], edx |
| ; push eax |
| ; invlpg [ebx] |
| ; pop eax |
| inc eax |
| add ebx, edi |
| add edx, edi |
| loop @B |
| |
| mov eax, [base] |
| and eax, 4095 |
| pop eax |
| mov edx, [base] |
| and edx, 4095 |
| add eax, edx |
| .fail: |
| pop edi |
| pop ebx |
| ret |
| endp |
| |
| 189,9 → 194,8 |
|---|
| cmp dword [LFBAddress], -1 |
| jne @f |
| mov [BOOT_VAR+0x901c],byte 2 |
| mov ecx, 0x280000 |
| mov edx, PG_SW |
| call @mem_alloc@8 |
| stdcall _alloc_pages, 0x280000 shr 12 |
| add eax, OS_BASE |
| mov [LFBAddress], eax |
| ret |
| @@: |
| 473,8 → 477,7 |
|---|
| test edx, PG_MAP |
| jnz @F |
| |
| xor ecx, ecx |
| call @core_alloc@4 |
| call _alloc_page |
| test eax, eax |
| jz .fail |
| |
| 786,12 → 789,11 |
|---|
| mov ecx, [ipc_tmp] |
| cmp esi, 0x40000-0x1000 ; size of [ipc_tmp] minus one page |
| jbe @f |
| push eax |
| lea ecx, [esi+0x1000] |
| xor edx, edx |
| call @mem_alloc@8 |
| push eax esi edi |
| add esi,0x1000 |
| stdcall alloc_kernel_space,esi |
| mov ecx, eax |
| pop eax |
| pop edi esi eax |
| @@: |
| mov [used_buf], ecx |
| stdcall map_mem, ecx, [SLOT_BASE+eax+0xB8],\ |
| 818,6 → 820,7 |
|---|
| mov [edi+4], ecx |
| add edi, 8 |
| mov esi, [msg_addr] |
| ; add esi, new_app_base |
| cld |
| rep movsb |
| |
| 1151,50 → 1154,54 |
|---|
| buf_ptr dd ? |
| endl |
| |
| mov ecx, [size] |
| test ecx, 4095 |
| jnz .fail |
| mov eax, [size] |
| test eax, eax |
| jz .fail |
| |
| add ecx, ecx |
| xor edx, edx |
| call @mem_alloc@8 |
| add eax, eax |
| stdcall alloc_kernel_space, eax |
| test eax, eax |
| mov [buf_ptr], eax |
| jz .fail |
| |
| push ebx |
| |
| xor ecx, ecx |
| mov edx, [size] |
| shr edx, 12 |
| mov ebx, edx |
| dec edx |
| bsr ecx, edx |
| inc ecx |
| mov [buf_ptr], eax |
| |
| call @core_alloc@4 |
| mov ebx, [size] |
| shr ebx, 12 |
| push ebx |
| |
| stdcall _alloc_pages, ebx |
| pop ecx |
| |
| test eax, eax |
| jz .mm_fail |
| |
| push edi |
| |
| or eax, [flags] |
| mov edx, [buf_ptr] |
| lea ecx, [ebx*4] |
| shr edx, 10 |
| mov edi, [buf_ptr] |
| mov ebx, [buf_ptr] |
| mov edx, ecx |
| shl edx, 2 |
| shr edi, 10 |
| @@: |
| mov [page_tabs+edx], eax |
| mov [page_tabs+edx+ecx], eax |
| mov [page_tabs+edi], eax |
| mov [page_tabs+edi+edx], eax |
| add eax, 0x1000 |
| add edx, 4 |
| dec ebx |
| add ebx, 0x1000 |
| add edi, 4 |
| dec ecx |
| jnz @B |
| |
| mov eax, [buf_ptr] |
| pop edi |
| pop ebx |
| ret |
| .mm_fail: |
| ;stdcall free_kernel_space, [buf_ptr] |
| stdcall free_kernel_space, [buf_ptr] |
| xor eax, eax |
| pop ebx |
| xor eax, eax |
| .fail: |
| ret |
| endp |