; new application structure
macro meos_app_start
 {
  use32
  org 0x0

  db 'MENUET01'
  dd 0x01
  dd __start
  dd __end
  dd __memory
  dd __stack

  if used __params & ~defined __params
    dd __params
  else
    dd 0x0
  end if

  dd 0x0
 }
MEOS_APP_START fix meos_app_start

macro code
 {
  __start:
 }
CODE fix code

macro data
 {
  __data:
 }
DATA fix data

macro udata
 {
  if used __params & ~defined __params
    __params:
      db 0
    __end:
      rb 255
  else
    __end:
  end if
  __udata:
 }
UDATA fix udata

macro meos_app_end
 {
  align 32
  rb 2048
  __stack:
  __memory:
 }
MEOS_APP_END fix meos_app_end


; macro for defining multiline text data
struc mstr [sstring]
 {
  forward
    local ssize
    virtual at 0
      db sstring
      ssize = $
    end virtual
    dd ssize
    db sstring
  common
    dd -1
 }


; strings
macro sz name,[data] {       ; from MFAR [mike.dld]
  common
   if used name
    label name
   end if
  forward
   if used name
    db data
   end if
  common
   if used name
    .size = $-name
   end if
}

macro lsz name,[lng,data] {  ; from MFAR [mike.dld]
  common
   if used name
    label name
   end if
  forward
   if (used name)&(lang eq lng)
    db data
   end if
  common
   if used name
    .size = $-name
   end if
}



; easy system call macro
macro mpack dest, hsrc, lsrc
{
  if (hsrc eqtype 0) & (lsrc eqtype 0)
    mov dest, (hsrc) shl 16 + lsrc
  else
    if (hsrc eqtype 0) & (~lsrc eqtype 0)
      mov dest, (hsrc) shl 16
      add dest, lsrc
    else
      mov dest, hsrc
      shl dest, 16
      add dest, lsrc
    end if
  end if
}

macro __mov reg,a {         ; mike.dld
 if ~a eq
   mov reg,a
 end if
}

macro mcall a,b,c,d,e,f {   ; mike.dld
 __mov eax,a
 __mov ebx,b
 __mov ecx,c
 __mov edx,d
 __mov esi,e
 __mov edi,f
 int   0x40
}



; language for programs
lang fix ru ; ru en fr ge fi



; optimize the code for size
__regs fix <eax,ebx,ecx,edx,esi,edi,ebp,esp>

macro add arg1,arg2
 {
   if (arg2 eqtype 0)
      if (arg2) = 1
         inc arg1
      else
         add arg1,arg2
      end if
   else
      add arg1,arg2
   end if
 }

macro sub arg1,arg2
 {
   if (arg2 eqtype 0)
      if (arg2) = 1
         dec arg1
      else
         sub arg1,arg2
      end if
   else
      sub arg1,arg2
   end if
 }

macro mov arg1,arg2
 {
   if (arg1 in __regs) & (arg2 eqtype 0)
      if (arg2) = 0
         xor arg1,arg1
      else if (arg2) = 1
         xor arg1,arg1
         inc arg1
      else if (arg2) = -1
         or  arg1,-1
      else if (arg2) > -128 & (arg2) < 128
         push arg2
         pop  arg1
      else
         mov  arg1,arg2
      end if
   else
      mov arg1,arg2
   end if
 }


macro struct name
 {
  virtual at 0
   name name
   sizeof.#name = $ - name
  end virtual
 }

; structures used in MeOS
struc process_information
 {
  .cpu_usage               dd ?  ; +0
  .window_stack_position   dw ?  ; +4
  .window_stack_value      dw ?  ; +6
  .not_used1               dw ?  ; +8
  .process_name            rb 12 ; +10
  .memory_start            dd ?  ; +22
  .used_memory             dd ?  ; +26
  .PID                     dd ?  ; +30
  .x_start                 dd ?  ; +34
  .y_start                 dd ?  ; +38
  .x_size                  dd ?  ; +42
  .y_size                  dd ?  ; +46
  .slot_state              dw ?  ; +50
  rb (1024-52)
 }
struct process_information

struc system_colors
 {
  .frame            dd ?
  .grab             dd ?
  .grab_button      dd ?
  .grab_button_text dd ?
  .grab_text        dd ?
  .work             dd ?
  .work_button      dd ?
  .work_button_text dd ?
  .work_text        dd ?
  .work_graph       dd ?
 }
struct system_colors


; constants

; events
EV_IDLE        = 0
EV_TIMER       = 0
EV_REDRAW      = 1
EV_KEY         = 2
EV_BUTTON      = 3
EV_EXIT        = 4
EV_BACKGROUND  = 5
EV_MOUSE       = 6
EV_IPC         = 7
EV_STACK       = 8

; event mask bits for function 40
EVM_REDRAW     =        1b
EVM_KEY        =       10b
EVM_BUTTON     =      100b
EVM_EXIT       =     1000b
EVM_BACKGROUND =    10000b
EVM_MOUSE      =   100000b
EVM_IPC        =  1000000b
EVM_STACK      = 10000000b