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| author | pnv1 <pnv@ydb.tech> | 2023-04-27 19:15:07 +0300 |
|---|---|---|
| committer | pnv1 <pnv@ydb.tech> | 2023-04-27 19:15:07 +0300 |
| commit | a66c59109292f9e0fb44ede41adfdebe569e4df3 (patch) | |
| tree | 906b3d10274afd16e8e70c61ff416bff9075422e /contrib/libs/asmlib/procname64.asm | |
| parent | 9ca91b40d6f45546e20a646d15590c0cc6cc9778 (diff) | |
| download | ydb-a66c59109292f9e0fb44ede41adfdebe569e4df3.tar.gz | |
Switch to old asmlib to be able to build ydb cli without sse4
Diffstat (limited to 'contrib/libs/asmlib/procname64.asm')
| -rw-r--r-- | contrib/libs/asmlib/procname64.asm | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/contrib/libs/asmlib/procname64.asm b/contrib/libs/asmlib/procname64.asm new file mode 100644 index 0000000000..1b77b74320 --- /dev/null +++ b/contrib/libs/asmlib/procname64.asm @@ -0,0 +1,145 @@ +%include "defs.asm" + +; procname64.asm
+;
+; Author: Agner Fog
+; Date created: 2007
+; Last modified: 2011-07-02
+; Description:
+; ProcessorName
+; =============
+; This function produces a zero-terminated ASCII string containing a name
+; for the microprocessor in human-readable format.
+;
+; Copyright (c) 2007-2011 GNU General Public License www.gnu.org/licenses
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+default rel
+
+global ProcessorName: function
+
+SECTION .data
+align 16
+
+NameBuffer times 50H db 0 ; Static buffer to contain name
+
+
+SECTION .text align=16
+
+; ********** ProcessorName function **********
+; C++ prototype:
+; void ProcessorName (char * text);
+
+; This function finds the name of the microprocessor. The name is returned
+; in the parameter text, which must be a character array of at least 68 bytes.
+
+ProcessorName:
+ push rbx
+ push rdi
+ lea rdi, [NameBuffer] ; text pointer
+
+ mov eax, 80000000H
+ cpuid
+ cmp eax, 80000004H ; text if extended vendor string available
+ jb no_ext_vendor_string
+
+ ; Has extended vendor string
+ mov eax, 80000002H
+ cpuid
+ mov [rdi], eax ; store 16 bytes of extended vendor string
+ mov [rdi+4], ebx
+ mov [rdi+8], ecx
+ mov [rdi+0CH], edx
+ mov eax, 80000003H
+ cpuid
+ mov [rdi+10H], eax ; next 16 bytes
+ mov [rdi+14H], ebx
+ mov [rdi+18H], ecx
+ mov [rdi+1CH], edx
+ mov eax, 80000004H
+ cpuid
+ mov [rdi+20H], eax ; next 16 bytes
+ mov [rdi+24H], ebx
+ mov [rdi+28H], ecx
+ mov [rdi+2CH], edx
+ jmp get_family_and_model
+
+no_ext_vendor_string:
+ ; No extended vendor string. Get short vendor string
+ xor eax, eax
+ cpuid
+ mov [rdi],ebx ; store short vendor string
+ mov [rdi+4],edx
+ mov [rdi+8],ecx
+ mov byte [rdi+12],0 ; terminate string
+
+get_family_and_model:
+ xor eax, eax
+ mov ecx, 30H
+ cld
+ repne scasb ; find end of text
+ dec rdi
+
+ mov dword [rdi], ' Fam' ; Append text " Family "
+ mov dword [rdi+4], 'ily '
+ add rdi, 8
+
+ mov eax, 1
+ cpuid ; Get family and model
+ mov ebx, eax
+ mov ecx, eax
+ shr eax, 8
+ and eax, 0FH ; Family
+ shr ecx, 20
+ and ecx, 0FFH ; Extended family
+ add eax, ecx ; Family + extended family
+ call WriteHex ; Write as hexadecimal
+
+ mov dword [rdi], 'H Mo' ; Write text "H Model "
+ mov dword [rdi+4], 'del '
+ add rdi, 8
+
+ mov eax, ebx
+ shr eax, 4
+ and eax, 0FH ; Model
+ mov ecx, ebx
+ shr ecx, 12
+ and ecx, 0F0H ; Extended model
+ or eax, ecx ; Model | extended model
+ call WriteHex ; Write as hexadecimal
+
+ mov dword [rdi], 'H' ; Write text "H"
+
+PNEND: ; finished
+ lea rax, [NameBuffer] ; Pointer to result
+ pop rdi
+ pop rbx
+ ret
+;ProcessorName ENDP
+
+WriteHex: ; Local function: Write 2 hexadecimal digits
+ ; Parameters: AL = number to write, RDI = text destination
+ mov ecx, eax
+ shr ecx, 4
+ and ecx, 0FH ; most significant digit first
+ cmp ecx, 10
+ jnb W1
+ ; 0 - 9
+ add ecx, '0'
+ jmp W2
+W1: ; A - F
+ add ecx, 'A' - 10
+W2: mov [rdi], cl ; write digit
+
+ mov ecx, eax
+ and ecx, 0FH ; next digit
+ cmp ecx, 10
+ jnb W3
+ ; 0 - 9
+ add ecx, '0'
+ jmp W4
+W3: ; A - F
+ add ecx, 'A' - 10
+W4: mov [rdi+1], cl ; write digit
+ add rdi, 2 ; advance string pointer
+ ret
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