0,0 → 1,174 |
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;; ;; |
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
;; Distributed under terms of the GNU General Public License ;; |
;; ;; |
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$Revision$ |
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align 4 |
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init_BIOS32: |
mov edi, 0xE0000 |
.pcibios_nxt: |
cmp dword[edi], '_32_' ; "magic" word |
je .BIOS32_found |
.pcibios_nxt2: |
add edi, 0x10 |
cmp edi, 0xFFFF0 |
je .BIOS32_not_found |
jmp .pcibios_nxt |
.BIOS32_found: ; magic word found, check control summ |
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movzx ecx, byte[edi + 9] |
shl ecx, 4 |
mov esi, edi |
xor eax, eax |
cld ; paranoia |
@@: lodsb |
add ah, al |
loop @b |
jnz .pcibios_nxt2 ; control summ must be zero |
; BIOS32 service found ! |
mov ebp, [edi + 4] |
mov [bios32_entry], ebp |
; check PCI BIOS present |
mov eax, '$PCI' |
xor ebx, ebx |
push cs ; special for 'ret far' from BIOS |
call ebp |
test al, al |
jnz .PCI_BIOS32_not_found |
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; çäåñü ñîçäàþòñÿ äèñêðèïòîðû äëÿ PCI BIOS |
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add ebx, OS_BASE |
dec ecx |
mov [(pci_code_32-OS_BASE)], cx ;limit 0-15 |
mov [(pci_data_32-OS_BASE)], cx ;limit 0-15 |
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mov [(pci_code_32-OS_BASE)+2], bx ;base 0-15 |
mov [(pci_data_32-OS_BASE)+2], bx ;base 0-15 |
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shr ebx, 16 |
mov [(pci_code_32-OS_BASE)+4], bl ;base 16-23 |
mov [(pci_data_32-OS_BASE)+4], bl ;base 16-23 |
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shr ecx, 16 |
and cl, 0x0F |
mov ch, bh |
add cx, D32 |
mov [(pci_code_32-OS_BASE)+6], cx ;lim 16-19 & |
mov [(pci_data_32-OS_BASE)+6], cx ;base 24-31 |
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mov [(pci_bios_entry-OS_BASE)], edx |
; jmp .end |
.PCI_BIOS32_not_found: |
; çäåñü äîëæíà çàïîëíÿòñÿ pci_emu_dat |
.BIOS32_not_found: |
.end: |
ret |
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align 4 |
proc test_cpu |
locals |
cpu_type dd ? |
cpu_id dd ? |
cpu_Intel dd ? |
cpu_AMD dd ? |
endl |
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mov [cpu_type], 0 |
xor eax, eax |
mov [cpu_caps-OS_BASE], eax |
mov [cpu_caps+4-OS_BASE], eax |
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pushfd |
pop eax |
mov ecx, eax |
xor eax, 0x40000 |
push eax |
popfd |
pushfd |
pop eax |
xor eax, ecx |
mov [cpu_type], CPU_386 |
jz .end_cpuid |
push ecx |
popfd |
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mov [cpu_type], CPU_486 |
mov eax, ecx |
xor eax, 0x200000 |
push eax |
popfd |
pushfd |
pop eax |
xor eax, ecx |
je .end_cpuid |
mov [cpu_id], 1 |
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xor eax, eax |
cpuid |
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mov [cpu_vendor-OS_BASE], ebx |
mov [cpu_vendor+4-OS_BASE], edx |
mov [cpu_vendor+8-OS_BASE], ecx |
cmp ebx, dword [intel_str-OS_BASE] |
jne .check_AMD |
cmp edx, dword [intel_str+4-OS_BASE] |
jne .check_AMD |
cmp ecx, dword [intel_str+8-OS_BASE] |
jne .check_AMD |
mov [cpu_Intel], 1 |
cmp eax, 1 |
jl .end_cpuid |
mov eax, 1 |
cpuid |
mov [cpu_sign-OS_BASE], eax |
mov [cpu_info-OS_BASE], ebx |
mov [cpu_caps-OS_BASE], edx |
mov [cpu_caps+4-OS_BASE],ecx |
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shr eax, 8 |
and eax, 0x0f |
ret |
.end_cpuid: |
mov eax, [cpu_type] |
ret |
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.check_AMD: |
cmp ebx, dword [AMD_str-OS_BASE] |
jne .unknown |
cmp edx, dword [AMD_str+4-OS_BASE] |
jne .unknown |
cmp ecx, dword [AMD_str+8-OS_BASE] |
jne .unknown |
mov [cpu_AMD], 1 |
cmp eax, 1 |
jl .unknown |
mov eax, 1 |
cpuid |
mov [cpu_sign-OS_BASE], eax |
mov [cpu_info-OS_BASE], ebx |
mov [cpu_caps-OS_BASE], edx |
mov [cpu_caps+4-OS_BASE],ecx |
shr eax, 8 |
and eax, 0x0f |
ret |
.unknown: |
mov eax, 1 |
cpuid |
mov [cpu_sign-OS_BASE], eax |
mov [cpu_info-OS_BASE], ebx |
mov [cpu_caps-OS_BASE], edx |
mov [cpu_caps+4-OS_BASE],ecx |
shr eax, 8 |
and eax, 0x0f |
ret |
endp |
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Property changes: |
Added: svn:keywords |
+Revision |
\ No newline at end of property |