x_mov xmm1,FromA,x,y,z
;get this code
movss xmm1,[FromA]
movss [x],xmm1
movss [y],xmm1
movss [z],xmm1

x_mov eax,FromA,x,y,z
;get this code
mov eax,[FromA]
mov [x],eax
mov [y],eax
mov [z],eax
    

macro x_mov a,b {
      if a eqtype eax
      mov a,[b]
      else
      movss a,[b]
      end if
      } 
;in code
cerr       dd 1.0,2.0,3.0 ; when i write err fasm write extra word used. What is mean ?
x_mov eax,cerr
x_mov xmm1,cerr ;fasm get error mov xmm1,[cerr]
    

macro x_mov a,b {
  if a in <eax, ebx, ecx, edx, esp, ebp, esi, edi>
    mov a, [b]
  else if a in <xmm0, xmm1, xmm2. xmm3, xmm4, xmm5, xmm6, xmm7>
    movss a, [b]
  end if
}