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Line 1... Line 1...
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MEM_WB     equ 6               ;write-back memory
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MEM_WB     equ 6               ;write-back memory
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MEM_WC     equ 1               ;write combined memory
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MEM_WC     equ 1               ;write combined memory
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MEM_UC     equ 0               ;uncached memory
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MEM_UC     equ 0               ;uncached memory
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 - 
 
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tmp_page_tab equ 0x1000000        ; HEAP_BASE
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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 [pg_data.kernel_tables-OS_BASE], edx
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           mov [pg_data.kernel_tables-OS_BASE], edx
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           xor eax, eax
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           xor eax, eax
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           mov edi, sys_pgdir-OS_BASE
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           mov edi, sys_pgdir-OS_BASE
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           mov ecx, 2048
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           mov ecx, 4096/4
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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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           mov edx, sys_pgdir-OS_BASE
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           mov edx, (sys_pgdir-OS_BASE)+ 0x800; (OS_BASE shr 20)
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;           bt [cpu_caps], CAPS_PSE
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           bt [cpu_caps-OS_BASE], CAPS_PSE
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;           jnc .no_PSE
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           jnc .no_PSE
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           mov ebx, cr4
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           mov ebx, cr4
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           or ebx, CR4_PSE
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           or ebx, CR4_PSE
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           mov eax, PG_LARGE+PG_SW
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           mov eax, PG_LARGE+PG_SW
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           bt [cpu_caps-OS_BASE], CAPS_PGE
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           bt [cpu_caps-OS_BASE], CAPS_PGE
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           jnc @F
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           jnc @F
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           or eax, PG_GLOBAL
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           or eax, PG_GLOBAL
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           or ebx, CR4_PGE
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           or ebx, CR4_PGE
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@@:
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@@:
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           mov cr4, ebx
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           mov cr4, ebx
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           sub [pg_data.kernel_tables-OS_BASE], 2
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           sub [pg_data.kernel_tables-OS_BASE], 2
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           mov [edx], eax
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           mov [edx+(OS_BASE shr 20)], eax
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           add eax, 0x00400000
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           mov [edx+4], eax
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           mov [edx+(OS_BASE shr 20)+4], eax
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           mov [edx], eax
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           add eax, 0x00400000
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           mov [edx+8], eax
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           mov [edx+(OS_BASE shr 20)+8], eax
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           add eax, 0x00400000
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           mov [edx+12], eax
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           mov [edx+(OS_BASE shr 20)+12], eax
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           add eax, 0x00400000
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           add edx, (OS_BASE shr 20)+16
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           mov [edx+4], eax
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           add eax, 0x00400000
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           add edx, 8
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;           mov eax, 0x800000+PG_SW
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           mov eax, 0x800000+PG_SW
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;           mov ecx, (HEAP_BASE-0x800000)/4096
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           mov ecx, (tmp_page_tab-0x800000)/4096
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;           jmp .map_low
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           jmp .map_low
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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 ecx, HEAP_BASE/4096
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           mov ecx, tmp_page_tab/4096
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;.map_low:
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.map_low:
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           mov edi, tmp_page_tab
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           mov edi, tmp_page_tab
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;@@:                                   ;
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@@:                                   ;
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;           stosd
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           stosd
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;           add eax, 0x1000
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           add eax, 0x1000
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;           dec ecx
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           dec ecx
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;           jnz @B
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           jnz @B
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           dec ecx
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           dec ecx
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           jnz .map_kernel_tabs
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           jnz .map_kernel_tabs
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           mov dword [sys_pgdir-OS_BASE+(page_tabs shr 20)], sys_pgdir+PG_SW-OS_BASE
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           mov dword [sys_pgdir-OS_BASE+(page_tabs shr 20)], sys_pgdir+PG_SW-OS_BASE
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- 
 
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           mov edi, (sys_pgdir-OS_BASE)
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           lea esi, [edi+(OS_BASE shr 20)]
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           movsd
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           movsd
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           movsd
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           ret
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           ret
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endp
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endp
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- 
 
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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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           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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           mov [edi], eax
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           mov [edi], eax
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           add edi, OS_BASE
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           add edi, OS_BASE
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           mov [page_start-OS_BASE], edi;     sys_pgmap+384
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           mov [page_start-OS_BASE], edi;
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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-OS_BASE]
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           add ebx, [pg_data.pagemap_size-OS_BASE]
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           mov [page_end-OS_BASE], ebx
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           mov [page_end-OS_BASE], ebx