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mov dword ptr _vendor_id_msg,
cmp ax, 0
jz Pent_CPU
mov _cpu_model, 4
jmp end_of_detect
Pent_CPU:
mov _cpu_model, 5
.386
pusha
mov eax, 00h
CPU_ID
mov dword ptr _vendor_id_msg, ebx
mov dword ptr _vendor_id_msg[+4], edx
mov dword ptr _vendor_id_msg[+8], ecx
cmp eax, 1
jl end_of_detect
mov eax, 1
CPU_ID
mov _cpu_signature, eax
mov _features_ebx, ebx
mov _features_edx, edx
mov _features_ecx, ecx
popa
end_of_detect:
.8086
ret
_get_cpu_model endp
; ============================================
; cpu_8086
; ============================================
cpu_8086 proc
pushf
pop ax
mov cx, ax
and ax, 0fffh
push ax
popf
pushf
pop ax
and ax, 0f000h
cmp ax, 0f000h
je is_8086
mov ax, 0
ret
is_8086:
mov ax, 1
ret
cpu_8086 endp
; ============================================
; cpu_80286
; ============================================
.286
cpu_80286 proc
mov ax, 0f000h
push ax
popf
pushf
pop ax
and ax, 0f000h
jz is_80286
mov ax, 0
ret
is_80286:
mov ax, 1
ret
cpu_80286 endp
; ============================================
; cpu_80386
; ============================================
.386
cpu_80386 proc
pushfd
pop eax
mov ecx, eax
xor eax, 40000h
push eax
popfd
pushfd
pop eax
xor eax, ecx
jz is_80386
mov ax, 0
ret
is_80386:
push ecx
popfd
mov ax, 1
ret
cpu_80386 endp
; ============================================
; cpu_80486
; ============================================
cpu_80486 proc
pushfd
pop eax
mov ecx, eax
xor eax, 200000h
push eax
popfd
pushfd
pop eax
xor eax, ecx
je is_80486
mov ax, 0
ret
is_80486:
mov ax, 1
