Verifying the support of the instruction movbe

[Vortex]

Hello,

To check if your processor supports the instruction movbe :

Code Select Expand

include     movbeCheck.inc

.data

m1          db 'The processor does not support the instruction movbe.',0
m2          db 'The processor supports the instruction movbe.',0
StrTable    dd OFFSET m1,OFFSET m2

.code

start:

    call    main
    invoke  ExitProcess,0

main PROC

    xor     eax,eax
    push    eax
   
    mov     eax,1
    cpuid

    bt      ecx,22
    pop     eax
    adc     eax,0

    mov     edx,OFFSET StrTable
    lea     ecx,[edx+4*eax]

    invoke  printf,DWORD PTR [ecx]
    ret   

main ENDP

END start


[Vortex]

Here is the 64-bit version :

Code Select Expand

include     movbeCheck.inc

.data

m1          db 'The processor does not support the instruction movbe.',0
m2          db 'The processor supports the instruction movbe.',0
StrTable    dq OFFSET m1,OFFSET m2

.code

start:

    sub     rsp,8+4*8
    call    main
    invoke  ExitProcess,0

main PROC PARMAREA=4*SIZEOF QWORD

LOCAL _rax:QWORD

    xor     rax,rax
    mov     _rax,rax
   
    mov     rax,1
    cpuid

    bt      rcx,22
    mov     rax,_rax
    adc     rax,0

    mov     rdx,OFFSET StrTable
    lea     rcx,[rdx+8*rax]

    invoke  printf,QWORD PTR [rcx]
    ret   

main ENDP

END start