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tmp_page_tab      equ 0x01000000
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tmp_page_tab      equ 0x00C00000
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align 4
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align 4
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proc mem_test
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proc mem_test
- 
 
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           mov eax, cr0
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           mov eax, cr0
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           and eax, not (CR0_CD+CR0_NW)
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           or eax, (CR0_CD+CR0_NW);disable caching
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           or eax, CR0_CD       ;disable caching
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           mov cr0, eax
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           mov cr0, eax
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           wbinvd                 ;invalidate cache
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           wbinvd               ;invalidate cache
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           cmp dword [edi], 'TEST'
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           cmp dword [edi], 'TEST'
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           xchg ebx, dword [edi]
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           xchg ebx, dword [edi]
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           je @b
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           je @b
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           and eax, not (CR0_CD+CR0_NW)
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           and eax, not (CR0_CD+CR0_NW)  ;enable caching
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           mov cr0, eax
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           mov cr0, eax
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           mov eax, edi
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           mov eax, edi
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           ret
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           ret
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endp
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endp
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           add eax, 0x00400000
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           add eax, 0x00400000
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           mov dword [sys_pgdir+4], eax
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           mov dword [sys_pgdir+4], eax
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           add eax, 0x00400000
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           add eax, 0x00400000
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           mov dword [sys_pgdir+8], eax
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           mov dword [sys_pgdir+8], eax
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           add eax, 0x00400000
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;           add eax, 0x00400000
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           mov dword [sys_pgdir+12], eax
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;           mov dword [sys_pgdir+12], eax
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           mov dword [sys_pgdir+0x600], sys_pgdir+PG_SW
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           mov dword [sys_pgdir+0x600], sys_pgdir+PG_SW
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           mov ecx, [pg_data.kernel_tables]
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           mov ecx, [pg_data.kernel_tables]
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           sub ecx, 4
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           sub ecx, 3 ;4
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           mov eax, tmp_page_tab+PG_SW
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           mov eax, tmp_page_tab+PG_SW
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           mov edi, sys_pgdir+16
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           mov edi, sys_pgdir+12     ;16
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           jmp .map_kernel_tabs
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           jmp .map_kernel_tabs
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.no_PSE:
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.no_PSE:
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           mov eax, PG_SW
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           mov eax, PG_SW
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           mov esi, tmp_page_tab
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           mov esi, tmp_page_tab
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           mov ecx, 4096/4      ;0x0 - 0x00FFFFFF
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           mov ecx, 3072/4;  4096/4      ;0x0 - 0x00FFFFFF
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.map_low:
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.map_low:
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           mov [esi], eax
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           mov [esi], eax
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           add eax, 0x1000
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           add eax, 0x1000
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           mov edi, tmp_page_tab
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           mov edi, tmp_page_tab
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           bt [cpu_caps], CAPS_PSE
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           bt [cpu_caps], CAPS_PSE
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           jc @F
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           jc @F
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           add edi, 4096*4      ;skip low kernel memory
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           add edi, 3072*4    ;4096*4  ;skip low kernel memory
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@@:
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@@:
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           mov ecx, [pg_data.kernel_tables]
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           mov ecx, [pg_data.kernel_tables]
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           sub ecx, 4
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           sub ecx, 3
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           shl ecx, 10
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           shl ecx, 10
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           xor eax, eax
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           xor eax, eax
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           cld
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           cld
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           rep stosd
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           rep stosd
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align 4
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align 4
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proc init_page_map
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proc init_page_map
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           mov edi, sys_pgmap
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           mov edi, sys_pgmap
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           mov ecx, 512/4
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           mov ecx, 384/4
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           xor eax,eax
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           xor eax,eax
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           cld
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           cld
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           rep stosd
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           rep stosd
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           not eax
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           not eax
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           mov ecx, [pg_data.pagemap_size]
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           mov ecx, [pg_data.pagemap_size]
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           sub ecx, 512
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           sub ecx, 384
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           shr ecx, 2
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           shr ecx, 2
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           rep stosd
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           rep stosd
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           mov edi, sys_pgmap+512
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           mov edi, sys_pgmap+384
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           mov edx, [pg_data.pages_count]
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           mov edx, [pg_data.pages_count]
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           mov ecx, [pg_data.kernel_tables]
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           mov ecx, [pg_data.kernel_tables]
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           bt [cpu_caps], CAPS_PSE
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           bt [cpu_caps], CAPS_PSE
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           jnc @f
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           jnc @f
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           sub ecx, 4
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           sub ecx, 3
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@@:
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@@:
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           sub edx, 4096
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           sub edx, 3072
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           sub edx, ecx
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           sub edx, ecx
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           mov [pg_data.pages_free], edx
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           mov [pg_data.pages_free], edx
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           and ecx, 31
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           and ecx, 31
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           shl eax, cl
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           shl eax, cl
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           stosd
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           stosd
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           mov [page_start], sys_pgmap+512
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           mov [page_start], sys_pgmap+384
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           mov ebx, sys_pgmap
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           mov ebx, sys_pgmap
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           add ebx, [pg_data.pagemap_size]
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           add ebx, [pg_data.pagemap_size]
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           mov [page_end], ebx
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           mov [page_end], ebx
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