(* Release 3.10 *)
(*-------------------------------------------------------------------------*
*                                                                          *
*  COREMAIN.A - process startup and exit, args, environment                *
*                                                                          *
*  COPYRIGHT (C) 1989..1992 Clarion Software Corporation.                  *
*  All Rights Reserved                                                     *
*                                                                          *
*--------------------------------------------------------------------------*)

include "corelib.inc"

module CoreMain

(****************************************************************************)
segment _BSS(BSS, 28H)

public  __argbuf    : org 192           (* command line buffer *)
public  __hugeshift : org 2
public  __osmajor   : org 2
public  __osminor   : org 2             (* DOS version *)
public  __exit_stk  : org 32*CodePtrSize(* at/onexit function stack *)

segment _DATA(DATA, 28H)

public @InitCalled      : dw 0
public @InitGrandTotal  : dw 0
public @InitCurrent     : dw 0
public @InitRecPointer  : dw 0, 0
public @InitPointer     : dw 0, 0
public @StackContextSP  : dw 0
public @StackContextBP  : dw 0
public @InitDone        : db 0
(*%T MThread *)
public @StackContextSS  : dw 0
(*%E *)
public @InitPriority    : db 0

segment _BSS(BSS, 28H)

public @ExitCode :  org 2

segment _BSS(BSS, 28H)

public __exit_list_done : org 1

segment _DATA(DATA, 28H)

(*%T NearPtr *)
public __exit_ptr : dw __exit_stk + (32*CodePtrSize)
public __exit_top : dw __exit_stk + (32*CodePtrSize)
(*%E *)
(*%F NearPtr *)
public __exit_ptr : dd __exit_stk + (32*CodePtrSize)
public __exit_top : dd __exit_stk + (32*CodePtrSize)
(*%E *)

segment _BSS(BSS, 28H)

public __exit_io :   org CodePtrSize
public __exit_file : org CodePtrSize
public __exit_tmp:   org CodePtrSize

public __exit_proc : org FarCodePtrSize

segment _BSS(BSS, 28H)

public __real_in :   org NearCodePtrSize
public __real_out :  org NearCodePtrSize

segment _DATA(DATA, 28H)

extrn __Term2
(*%F NearCall *)
public standard@haltChain : dd __Term2
(*%T _DLLOVL *)
extrn __Term3
public standard@@haltChain2 : dd __Term3
(*%E *)
(*%E *)
(*%T NearCall *)
public standard@haltChain : dw __Term2
(*%E *)

segment _DATA(DATA, 28H)

public  __CmdLine : dd 0
public  __iHandle : dw 0

segment _DATA(DATA, 28H)

public __farstack : dw 0
public __sp_temp :  dw 0
public __ss_temp :  dw 0

(*%F _OS2 *)
(*%F _WINDOWS *)
segment _DATA(DATA, 28H)

public DOSHUGESHIFT = 12
(*%E *)
(*%E *)

segment _DATA(DATA, 28H)

public  _x_initx :     dw 0,0
public  _x_bss_end :   dw 0
public  _x_bss_start : dw 0

segment _BSS(BSS, 28H)

public __sigsetup :   org 2
public __exitbreak :  org 4
public __exitsig :    org CodePtrSize
public __exitgraph :  org CodePtrSize

segment _DATA(DATA, 28H)

public  __psp           : dw 0
public  __env           : dw 0
public  __heap_base     : dw 0
public  __main_args     : dw 0
public  __env_init      : dw 0
public  __arg_init      : dw 0
public  STKHQQ :
public  __stklen        : dw 0
public  __SSisDS        : dw 0
public  __far_ss        : dw 0
public  __x_near_stack_start : dw 0
public  __heap_size     : dw 0
public  __osmode        : dw 0

segment _DATA(DATA, 28H)

public  __x_ax :      dw 0
public  __x_bx :      dw 0
public  __x_di :      dw 0

segment _DATA(DATA, 28H)

public  _x_main :      dw 0,0
public  __stk_base :   dw 0

segment _BSS(BSS, 28H)

public __nmemsetup :    org 1   (* BOOLEAN flag indicating near heap *)
                                (* has been initialised              *)
segment _BSS(BSS, 28H)

public __fmodmemsetup : org 1   (* BOOLEAN flag indicating M2 far heap *)
                                (* has been initialised             *)
segment _BSS(BSS, 28H)

public __fmemsetup :    org 1   (* BOOLEAN flag indicating far heap *)
                                (* has been initialised             *)


segment _DATA(DATA, 28H)
(*%F _ENV *)
(*%T _DLLOVL *)
extrn Loader$GrowHeap
extrn Loader$ShrinkHeap

public __res_mem :      dd Loader$GrowHeap
public __fix_mem :      dd 0
public __shr_mem :      dd Loader$ShrinkHeap
(*%E *)
(*%F _DLLOVL *)
public __res_mem :      org CodePtrSize
public __fix_mem :      org CodePtrSize
public __shr_mem :      org CodePtrSize
(*%E *)
(*%E *)
(*%T _ENV*)
public __res_mem :      org CodePtrSize
public __fix_mem :      org CodePtrSize
public __shr_mem :      org CodePtrSize
(*%E *)

                                (* procedure variable - points to *)
                                (* routine to shrink heap *)

(****************************************************************************)
section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn @RecursiveExit
extrn __exit
extrn __exit_io
extrn __exit_file
extrn __exit_tmp
extrn __exit_proc
extrn __InitReset
extrn @InitPointer
extrn @InitRecPointer
extrn @ExitCode
extrn @StackContextSP
extrn @StackContextBP
extrn @StackContextSS
extrn @InitCurrent
extrn @InitGrandTotal
extrn @InitCalled
extrn @InitPriority
extrn @InitDone
extrn $Stage2

retCode : dw 0

select _TEXT

(*%F _WINDLL *)
public _exit :

(*%F RegParam *)

code = bxframe
    mov  bx, sp
    mov  ax, ss:[bx][code]
(*%E *)
(*%F SameDS *)
    mov  bx, _DATA
    mov  ds, bx
(*%E *)
    mov  [@ExitCode], ax
    cmp  byte [@RecursiveExit], 0
    je   notAgain
(*%F RegParam *)
    push ax
(*%E *)
(*%F NearCall *)
    call far __exit
(*%E *)
(*%T NearCall *)
    call __exit
(*%E *)
notAgain:
    not  byte [@RecursiveExit]
(*%T MThread *)
    mov  ss, [@StackContextSS]
(*%E *)
    mov  sp, [@StackContextSP]
    mov  bp, [@StackContextBP]
    jmp  near $TerminateProcess
(*%E *)
public __InitLoop :

(*%T _WINDOWS *)
(*%F NearCall *)
    inc  bp
    push bp
    mov  bp, sp
(*%E *)
(*%E *)
(*%T _DLLOVL *)
    push bp
    mov  bp, sp
(*%E *)
    push di
    push si
(*%F SameDS *)
    push ds
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
chainLoop:
traverseLoop:
    les  bx, [@InitRecPointer]
    mov  ax, [@InitCurrent]
    cmp  ax, es:[bx][InitRecTotal]
    je   endOfArray
    les  di, [@InitPointer]
    add  word [@InitPointer], InitRecSize
    inc  word [@InitCurrent]
    mov  al, [@InitPriority]
    cmp  al, es:[di][Priority]
    jne  traverseLoop
    inc  word [@InitCalled]
(*%F NearCall *)
    call far es:[di][ProcVar]
    cmp byte [@InitDone],0
    jz   traverseLoop
initLoopRet:
(*%F SameDS *)
    pop  ds
(*%E *)
    pop  si
    pop  di
(*%T _DLLOVL *)
    pop  bp
(*%E *)
(*%T _WINDOWS *)
    pop  bp
    dec  bp
(*%E *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    call es:[di][ProcVar]
    cmp byte [@InitDone],0
    jz   traverseLoop
initLoopRet:
(*%F SameDS *)
    pop  ds
(*%E *)
    pop  si
    pop  di
    ret  0
(*%E *)

endOfArray:
    mov  ax, [@InitCalled]
    cmp  ax, [@InitGrandTotal]
    je   stageComplete

    les  bx, [@InitRecPointer]
    les  bx, es:[bx][InitRecNext]
    mov  ax, es
    or   ax, bx
    jz   endOfList
    mov  [@InitRecPointer], bx
    mov  [@InitRecPointer][2], es
    sub  ax, ax
    mov  [@InitCurrent], ax
    mov  [@InitPointer], ax
    mov  ax, es:[bx][InitRecSeg]
    mov  [@InitPointer][2], ax
    jmp  traverseLoop

endOfList:
    dec  byte [@InitPriority]
    js   stageComplete
    call __InitReset
    jmp  chainLoop

stageComplete:
    mov  byte [@InitDone],1
(*%T MThread *)
    mov  [@StackContextSS], ss
(*%E *)
    mov  [@StackContextBP], bp
    mov  [@StackContextSP], sp
(*%F NearCall *)
    call far $Stage2
(*%E *)
(*%T NearCall *)
    call $Stage2
(*%E *)
    mov  [@ExitCode], ax

$TerminateProcess:
(*%T _WINDLL *)
    jmp  initLoopRet
(*%E *)

public __Term2 :
(*%F SameDS *)
    mov  bx, _DATA
    mov  ds, bx
(*%E *)
    extrn __exit_ptr
    extrn __exit_top
    extrn standard@haltChain
(*%T _DLLOVL *)
    extrn standard@@haltChain2
    push [standard@@haltChain2][2]
    push [standard@@haltChain2][0]
(*%E *)
(*%F _DLLOVL *)
(*%F NearCall *)
    push cs
(*%E *)
    mov  bx, __Term3
    push bx
(*%E *)
(*%F NearCall *)
    push [standard@haltChain][2]
(*%E *)
    push [standard@haltChain][0]

(* reset halt chain to allow it to be re-used in termination code *)
(*%T _DLLOVL *)
    push [standard@@haltChain2][0]
    pop  [standard@haltChain][0]
    push [standard@@haltChain2][2]
    pop  [standard@haltChain][2]
(*%E *)
(*%F _DLLOVL *)
    mov word [standard@haltChain][0],__Term3
(*%F NearCall *)
    mov [standard@haltChain][2],cs
(*%E *)
(*%E *)

(*%F NearCall *)
    ret far 0                        (* jump to termination procedures *)
(*%E *)
(*%T NearCall *)
    ret 0
(*%E *)
public __Term3:
(*%F _WINDOWS *)
    mov  bx, _DATA
    mov  ds, bx
(*%E *)
(*%T MThread *)
    mov  ss, [@StackContextSS]
(*%E *)
    mov  bp, [@StackContextBP]
    mov  sp, [@StackContextSP]
    mov  si, [__exit_ptr]
    mov  di, [__exit_top]
exitLoop:
    cmp  si, di
    je   loopDone
(*%T NearCall *)
    call [si]
    add  si, 2
(*%E *)
(*%F NearCall *)
    call far [si]
    add  si, 4
(*%E *)
(*%F SameDS *)
    mov  bx, _DATA
    mov  ds, bx
(*%E *)
    jmp  exitLoop
loopDone:

    jmp  initLoopRet

public __cleanup :

(*%F SameDS *)
    mov  cx, _DATA
    mov  ds, cx
(*%E *)
    mov  cx, [__exit_io]
    jcxz noCall1
(*%F SameDS *)
    push ds
(*%E *)
(*%F NearCall *)
    call far [__exit_io]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
(*%F SameDS *)
    pop  ds
(*%E *)
noCall1:
    mov  cx, [__exit_file]
    jcxz noCall2
(*%F SameDS *)
    push ds
(*%E *)
(*%F NearCall *)
    call far [__exit_file]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
(*%F SameDS *)
    pop  ds
(*%E *)
noCall2:
    mov  cx, [__exit_tmp]
    jcxz noCall3
(*%F SameDS *)
    push ds
(*%E *)
(*%F NearCall *)
    call far [__exit_tmp]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
(*%F SameDS *)
    pop  ds
(*%E *)
noCall3:
    mov  cx, [__exit_proc]
    jcxz noCall4
(*%F SameDS *)
    push ds
(*%E *)
    call far [__exit_proc]
(*%F SameDS *)
    pop  ds
(*%E *)
noCall4:
    ret  0

(******************************************************************************)
section
segment _DATA(DATA, 28H)
segment _TEXT(CODE,28H)

select _TEXT

extrn __env_init
extrn _malloc
extrn __env
extrn __env_var
extrn __env_copy
extrn __FatalErrorPos
extrn __FatalError


public __setenv :

n       = -2
p       = -4
c       = -6
eptr    = -10
current = -14
dgroup  = -16
locals  =  16

    push bp
    mov  bp, sp
    sub  sp, locals
    push di
    push si
    push ds
    mov  [bp][dgroup], ds
    cmp  byte [__env_init], 0
    jne  near setDone
    not  byte [__env_init]
memSet:
    sub  dx, dx
    mov  [bp][n], dx
    mov  ax, [__env]
    mov  [bp][eptr][2], ax
    mov  word [bp][eptr], 0
Loop1:
    cmp  dx, 63
    jge  Loop1Done
    sub  cx, cx
    lds  si, [bp][eptr]
Loop2:
    cmp  cx, 1024
    jge  Loop2Done
    lodsb
    or  al, al
    jz  Loop2Done
    inc  cx
    jmp  Loop2
Loop2Done:
    jcxz Loop1Done
    inc  cx
    mov  ax, cx
    mov  [bp][p], cx
    mov  [bp][n], dx
    mov  ds, [bp][dgroup]
(*%F RegParam *)
    push ax
(*%E *)
(*%F NearCall *)
    call far _malloc
(*%E *)
(*%T NearCall *)
    call _malloc
(*%E *)
(*%F RegParam *)
    add  sp, 2
(*%E *)
    mov  [bp][current], ax
(*%F NearPtr *)
    mov  [bp][current][2], dx
    or  dx, dx
(*%E *)
(*%T NearPtr *)
(*%F _WINDOWS *)
    mov  word [bp][current][2], _DATA
(*%E *)
(*%T _WINDOWS *)
    mov  word [bp][current][2], ss
(*%E *)
    or  ax, ax
(*%E *)
    jz  InternalError
    mov  di, [bp][current]
    mov  es, [bp][current][2]
    mov  si, [bp][eptr]
    mov  ax, [bp][eptr][2]
    mov  cx, [bp][p]
    call __env_copy
    mov  bx, [bp][n]
(*%F NearPtr *)
    mov  cl, 2
(*%E *)
(*%T NearPtr *)
    mov  cl, 1
(*%E *)
    shl  bx, cl
    mov  ax, [bp][current]
    mov  [bx][__env_var], ax
(*%F NearPtr *)
    mov  ax, [bp][current][2]
    mov  [bx][__env_var][2], ax
(*%E *)
    inc  word [bp][n]
    mov  dx, [bp][n]
    mov  cx, [bp][p]
    add  [bp][eptr], cx
    jmp  Loop1
Loop1Done:
    mov  ds, [bp][dgroup]
    mov  bx, [bp][n]
(*%F NearPtr *)
    mov  cl, 2
(*%E *)
(*%T NearPtr *)
    mov  cl, 1
(*%E *)
    shl  bx, cl
    sub  ax, ax
    mov  [bx][__env_var], ax
    mov  [bx][__env_var][2], ax
setDone:
    pop  ds
    pop  si
    pop  di
    mov  sp, bp
    pop  bp
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

InternalError:
    call far __FatalErrorPos
    mov  cx, 60H
    push cx
    push dx
    push ax
    call far __FatalError

(******************************************************************************)
section
extrn __env_var
extrn __core_lock
extrn __core_unlock
extrn $StdRet

segment _TEXT(CODE,00028H)


nicmp :

(*%T NearPtr *)
RetSize = 0
(*%E *)
(*%F NearPtr *)
RetSize = 2
(*%E *)


(*%F NearPtr *)
num    = sframe
(*%E *)

(*%F NearPtr *)
    push bp
    mov  bp, sp
(*%E *)
(*%T NearPtr *)
    push dx
(*%E *)
    push di
    push si
(*%F NearPtr *)
    push ds
    mov  ds, bx
    mov  si, ax
    mov  di, cx
    mov  es, dx
    mov  cx, [bp][num]
(*%E *)
(*%T NearPtr *)
    mov  si, ax
    mov  di, bx
    push ds
    pop  es
(*%E *)
    sub  ax, ax
    jcxz nicmpDone
nicmpLoop:
    lodsb
    cmp  al, 'z'        (* convert to upper if lower *)
    ja   notlowa
    cmp  al, 'a'
    jb   notlowa
    sub  al, 20H
notlowa:
    mov  bl, es:[di]
    inc  di             (* convert to upper if lower *)
    cmp  bl, 'z'
    ja   notlowb
    cmp  bl, 'a'
    jb   notlowb
    sub  bl, 20H
notlowb:
    cmp  al, bl
    jl   nicmpLessThan
    jg   nicmpGreaterThan
    or   al, al
    loopne nicmpLoop
nicmpSame:
    sub  ax, ax         (* return 0 *)
    jmp  nicmpDone
nicmpLessThan:
    mov  ax, -1         (* return -1 *)
    jmp  nicmpDone
nicmpGreaterThan:
    mov  ax, 1          (* return 1 *)
nicmpDone:
(*%F NearPtr *)
    pop  ds
(*%E *)
    pop  si
    pop  di
(*%T NearPtr *)
    pop  dx
(*%E *)
(*%F NearPtr *)
    pop  bp
(*%E *)
    ret  RetSize

public _getenv :

(*%F RegParam *)
str = frame
(*%E *)
(*%T RegParam *)
(*%T NearPtr *)
str = - 2
(*%E *)
(*%F NearPtr *)
str = - 4
(*%E *)
(*%E *)

(*%T NearPtr *)
    push  bp
    mov   bp,sp
    sub   sp, 2
    push  di
    push  si
(*%T RegParam *)
    push  dx
    push  cx
    push  bx
    mov   [bp][str],ax
(*%E *)
(*%F RegParam *)
    mov  ax, [bp][str]
(*%E *)
    push  ds
    pop   es
    mov   di, ax
    mov   cx, 0FFFFH
    sub   al, al
repne ;   scasb             (* get length of string *)
    not   cx
    dec   cx
    mov   di,cx
    xor   dx,dx
$0:
    mov   bx,dx
    add   bx,dx
    mov   si,[bx][__env_var]
    test  si,si
    je    $2
    mov   cx,di
    mov   bx,si
    mov   ax,[bp][str]
    call  nicmp
    test  ax,ax
    je    $3
$1:
    inc   dx
    cmp   dx,3FH
    jl    $0
$2:
    xor   ax,ax
    jmp   $4
$3:
    mov   bx,di
    add   bx,si
    cmp   byte [bx],3DH
    jne   $1
    inc   bx
    mov   ax,bx
$4:
(*%T RegParam *)
    pop  bx
    pop  cx
    pop  dx
(*%E *)
    pop  si
    pop  di
    mov  sp, bp
    pop  bp
(*%F NearCall *)
    ret far 0
(*%E *)
(*%T NearCall *)
    ret 0
(*%E *)
(*%E *)

(*%F NearPtr *)
    push  bp
    mov   bp,sp
    sub   sp,0AH
    push  ds
    push  di
    push  si
(*%T MThread *)
    mov  di, seg __core_lock
    mov  es, di
    call far es:[__core_lock]
(*%E *)
(*%T RegParam *)
    push  cx
    mov   [bp][str],ax
    mov   [bp][str][2],bx
(*%E *)
(*%F RegParam *)
    mov  ax, [bp][str]
    mov  bx, [bp][str][2]
(*%E *)
    mov   di,ax
    mov   es,bx
    mov   cx,-1
    sub   al,al
    repne ;scasb
    not   cx
    mov   ax,cx
    dec   ax
    mov   di,ax
    xor   si,si
    mov   ax,seg __env_var
    mov   [bp][-6],ax
$0:
    mov   bx,si
    shl   bx,1
    shl   bx,1
    mov   ds,[bp][-6]
    lds   cx,[bx][__env_var]
    mov   [bp][-0AH],cx
    mov   ax,ds
    or    ax,cx
    je    $2
    push  di
    mov   dx,ds
    mov   ax,[bp][str]
    mov   bx,[bp][str][2]
    call  nicmp
    test  ax,ax
    je    $3
$1:
    inc   si
    cmp   si,3FH
    jl    $0
$2:
    xor   ax,ax
    xor   dx,dx
    jmp   $4
$3:
    mov   bx,[bp][-0AH]
    cmp   byte [bx][di],3DH
    jne   $1
    lea   ax,[bx][di][1]
    mov   dx,ds
$4:
(*%T RegParam *)
    pop   cx
(*%E *)
(*%T MThread *)
    mov  di, seg __core_unlock
    mov  es, di
    call far es:[__core_unlock]
(*%E *)
    pop   si
    pop   di
    pop   ds
    mov   sp,bp
    pop   bp
(*%F NearCall *)
    ret far 0
(*%E *)
(*%T NearCall *)
    ret 0
(*%E *)
(*%E *)

(****************************************************************************)
(*%T _OS2 *)
section
segment _DATA(DATA, 28H)
segment _TEXT(CODE,28H)

extrn __exit_ptr
extrn __exit_top
extrn __exit_io
extrn __exit_file
extrn __exit_tmp
extrn __exit_proc
extrn __exit_list_done
extrn __x_near_stack_start
extrn __farstack
extrn standard@haltChain
extrn DOSEXITLIST
extrn __do_exit_lists

exit_handler:
    mov  bx, _DATA
    mov  ds, bx
    cmp  byte [__exit_list_done], 0
    jnz  noCall4
    cmp  word [__farstack], 0
    jnz  notNear
    mov  sp, [__x_near_stack_start]
    mov  ss, bx
notNear:
(*%F NearCall *)
    push [standard@haltChain][2]
(*%E *)
    push [standard@haltChain][0]

(* reset halt chain to allow it to be re-used in termination code *)
    mov word [standard@haltChain][0],here
(*%F NearCall *)
    mov [standard@haltChain][2],cs
(*%E *)

(*%F NearCall *)
    ret far 0                        (* jump to termination procedures *)
(*%E *)
(*%T NearCall *)
    ret 0
(*%E *)
here:
    mov  bx, _DATA
    mov  ds, bx
    mov  si, [__exit_ptr]
    mov  di, [__exit_top]
exitLoop:
    cmp  si, di
    je   loopDone
(*%T NearCall *)
    call [si]
    add  si, 2
(*%E *)
(*%F NearCall *)
    call far [si]
    add  si, 4
(*%E *)
(*%F SameDS *)
    mov  bx, _DATA
    mov  ds, bx
(*%E *)
    jmp  exitLoop
loopDone:
noCall4:
    mov  ax, EXLST_EXIT
    push ax
    sub  ax, ax
    push ax
    push ax
    call far DOSEXITLIST

public __set_exit_handler :
    mov  ax, EXLST_ADD
    push ax
    push cs
    mov  ax, exit_handler
    push ax
    call far DOSEXITLIST
    ret far 0
(*%E *)

section
(****************************************************************************)
(*%T _WINDLL *)
segment _DATA(DATA,28H)
segment _TEXT(CODE,28H)

extrn __exit_io
extrn __exit_file
extrn __exit_tmp
extrn __exit_proc
extrn __exit_ptr
extrn __exit_top
extrn standard@haltChain

public _exit :

(*%F NearCall *)
    push [standard@haltChain][2]
(*%E *)
    push [standard@haltChain][0]

(* reset halt chain to allow it to be re-used in termination code *)
    mov word [standard@haltChain][0],here
(*%F NearCall *)
    mov [standard@haltChain][2],cs
(*%E *)

(*%F NearCall *)
    ret far 0                        (* jump to termination procedures *)
(*%E *)
(*%T NearCall *)
    ret 0
(*%E *)
here:
    mov  bx, _DATA
    mov  ds, bx
    mov  si, [__exit_ptr]
    mov  di, [__exit_top]
exitLoop:
    cmp  si, di
    je   loopDone
(*%T NearCall *)
    call [si]
    add  si, 2
(*%E *)
(*%F NearCall *)
    call far [si]
    add  si, 4
(*%E *)
(*%F SameDS *)
    mov  ds, bx
(*%E *)
    jmp  exitLoop
loopDone:
    mov  cx, [__exit_io]
    jcxz noCall1
(*%F NearCall *)
    call far [__exit_io]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noCall1:
    mov  cx, [__exit_file]
    jcxz noCall2
(*%F NearCall *)
    call far [__exit_file]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noCall2:
    mov  cx, [__exit_tmp]
    jcxz noCall3
(*%F NearCall *)
    call far [__exit_tmp]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noCall3:

(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(*%E _WINDLL*)

(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)

public @InitChain : dw 0, 0

select _TEXT

public __InitLink :
  (* Initializes @InitChain from record passed in ax:bx *)

(*%F SameDS *)
    push ds
    mov  cx, _DATA
    mov  ds, cx                        (* ds = _DATA *)
(*%E *)
    mov  es, ax                        (* es = seg of record *)
    mov  ax, [@InitChain]
    mov  es:[bx], ax                   (* @InitChain -> record passed in *)
    mov  ax, [@InitChain][2]
    mov  es:[bx][2], ax
    mov  [@InitChain], bx
    mov  [@InitChain][2], es
(*%F SameDS *)
    pop  ds
(*%E *)
    ret  far 0

(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)
segment _INIT(INIT_CODE,28H)

select _DATA

extrn @InitCalled
extrn @InitPriority
extrn @InitCurrent
extrn @InitPointer
extrn @InitRecPointer
extrn @InitGrandTotal
extrn @InitChain
extrn __osmode

select _TEXT

public __InitReset :

    les  bx, [@InitChain]
    sub  cx, cx
    mov  word [@InitCurrent], cx
    mov  word [@InitPointer], cx
    mov  ax, es:[bx][InitRecSeg]
    mov  [@InitPointer][2], ax
    mov  [@InitRecPointer], bx
    mov  [@InitRecPointer][2], es
    ret  0

public __InitSetup :

Current = -4
locals  =  4

    push bp
    mov  bp, sp
    sub  sp, locals
    call __InitReset
chainLoop:
    mov  ax, es
    or   ax, bx
    jz   chainDone
    mov  [bp][Current], bx
    mov  [bp][Current][2], es
    mov  es, es:[bx][InitRecSeg]
    cmp  byte [__osmode], 1
    jnz  realMode
    mov  ax, es
    (* lsl cx, ax *)
    db   0FH, 3, 0C8H
    jcxz gotCount
    mov  ax, cx
    mov  cl, InitRecSize
    div  cl
    sub  ah, ah
    mov  cx, ax
    jmp  gotCount
realMode:
    mov  cx, -1
    mov  di, -InitRecSize
sizeLoop:
    add  di, InitRecSize
    cmp  word es:[di][Magic], MAGIC_NUM
    loope sizeLoop
    neg  cx
    sub  cx, 2
gotCount:
    add  [@InitGrandTotal], cx
    les  bx, [bp][Current]
    mov  es:[bx][InitRecTotal], cx
    les  bx, es:[bx][InitRecNext]
    jmp  chainLoop
chainDone:
    mov  word [@InitCalled], 0
    mov  byte [@InitPriority], PRMAX
    mov  sp, bp
    pop  bp
    ret  0

(***************************************************************************)
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn _x_main
extrn _main

select _DATA

extrn __argv
extrn __argc

select _TEXT

public __main_args2 :
(*%F RegParam *)
(*%F NearPtr *)
  push ds                        (*  char *argv[] *)
(*%E *)
  mov  ax, __argv
  push ax
  push [__argc]                  (*  int argc *)
(*%E *)

(*%T RegParam *)
(*%F NearPtr *)
  mov  ax, [__argc]              (* int argc *)
  mov  bx, __argv                (* char *argv[] *)
  mov  cx, ds
(*%E *)
(*%T NearPtr *)
  mov  ax, [__argc]
  mov  bx, __argv
(*%E *)
(*%E *)

(*%F NearCall *)
  call far [_x_main]             (* call main *)
(*%E *)
(*%T NearCall *)
  call _main
(*%E *)

(*%F RegParam *)
(*%F NearPtr *)
  add sp, 6
(*%E *)
(*%T NearPtr *)
  add sp, 4
(*%E *)
(*%E *)

(*%F NearCall *)
  ret  far 0
(*%E *)
(*%T NearCall *)
  ret  0
(*%E *)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn _x_main
extrn _main

select _DATA

extrn __env_var
extrn __argv
extrn __argc

select _TEXT

public __main_args3 :
(*%F RegParam *)
(*%F NearPtr *)              (* pass arguments to main *)
  push ds
(*%E *)
  mov  ax, __env_var
  push ax                        (*  char *envp[] *)
(*%F NearPtr *)
  push ds                        (*  char *argv[] *)
(*%E *)
  mov  ax, __argv
  push ax
  push [__argc]                  (*  int argc *)
(*%E *)

(*%T RegParam *)
(*%F NearPtr *)
  mov  ax, [__argc]              (* int argc *)
  mov  bx, __argv                (* char *argv[] *)
  mov  cx, ds
  push ds
  mov  dx, __env_var
  push dx                        (*  char *envp[] *)
(*%E *)
(*%T NearPtr *)
  mov  ax, [__argc]
  mov  bx, __argv
  mov  cx, __env_var
(*%E *)
(*%E *)

(*%F NearCall *)
  call far [_x_main]             (* call main *)
(*%E *)
(*%T NearCall *)
  call _main
(*%E *)

(*%F RegParam *)
(*%F NearPtr *)
  add sp, 10
(*%E *)
(*%T NearPtr *)
  add sp, 6
(*%E *)
(*%E *)

(*%F NearCall *)
  ret  far 0
(*%E *)
(*%T NearCall *)
  ret  0
(*%E *)

section
(****************************************************************************)
(*%T _WINDLL *)
segment _TEXT(CODE,28H)

extrn LIBMAIN
extrn __heap_size
extrn __CmdLine
extrn __iHandle
extrn __call_main

public __libmain_args :

   push [__iHandle]
   push ds
   push [__heap_size]
   push [__CmdLine][2]
   push [__CmdLine]
   jmp  __call_main
(*%E *)

section
(****************************************************************************)
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)
segment _BSS(BSS, 28H)

select _BSS

InitLim = 32
buffer : org (DataPtrSize * InitLim) + 2

select _TEXT

extrn $initm

DummyProc:

(*%F near_init_code *)
    ret  far 0
(*%E *)
(*%T near_init_code *)
    ret  0
(*%E *)

public _InitModules :

(*%F _DLLOVL *)

    call Init
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

    call Init
(*%F NearCall *)
    ret  far 2
(*%E *)
(*%T NearCall *)
    ret  2
(*%E *)
    call Init
(*%F NearCall *)
    ret  far 4
(*%E *)
(*%T NearCall *)
    ret  4
(*%E *)
    call Init
(*%F NearCall *)
    ret  far 6
(*%E *)
(*%T NearCall *)
    ret  6
(*%E *)
    call Init
(*%F NearCall *)
    ret  far 8
(*%E *)
(*%T NearCall *)
    ret  8
(*%E *)
    call Init
(*%F NearCall *)
    ret  far 0AH
(*%E *)
(*%T NearCall *)
    ret  0AH
(*%E *)
arg1     = frame+2
(*%E *)

(*%T _DLLOVL *)
arg1     = frame
(*%E *)

base     = -2
StackPos = -4
locals   =  4

Init:
    push bp
    mov  bp, sp
    sub  sp, locals
(*%T RegParam *)
    push ax
    push bx
    push cx
    push dx
(*%E *)
    push di
    push si
    push ds
(*%F SameDS *)
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    mov  di, buffer
    push ds
    mov  ax, ds
    mov  es, ax
    mov  ax, DummyProc
    stosw
(*%F near_init_code *)
    mov  ax, cs
    stosw
(*%E *)
    lea  si, [bp][arg1]
    mov  cx, ss
    mov  ds, cx
    mov  cx, InitLim
storeLoop:
    lodsw
(*%T near_init_data *)
    or   ax, ax
(*%E *)
(*%F near_init_data *)
    mov  bx, ax
    or   bx, ds:[si]
(*%E *)
    jz   terminator
    stosw
(*%F NearPtr *)
(*%F near_init_data *)
    movsw
(*%E *)
(*%T near_init_data *)
    add  si, 2
(*%E *)
(*%E *)
    loop  storeLoop
terminator:
    mov  ax, -1
    stosw
    pop  ds
    extrn _x_main
    mov  word [_x_main], buffer
(*%F near_init_data *)
    mov  [_x_main][2], es
(*%E *)
    push bp
(*%T _DLLOVL *)
    mov  bp,sp
    call far $initm
(*%E *)
(*%F _DLLOVL *)
 (*%F near_init_code *)
    push cs
 (*%E *)
    call $initm
(*%E *)
    pop  bp

noArgs:
    pop  ds
    pop  si
    pop  di
(*%T RegParam *)
    pop  dx
    pop  cx
    pop  bx
    pop  ax
(*%E *)
    mov  sp, bp
    pop  bp
(*%F _DLLOVL *)
    ret  0
(*%E *)
(*%T _DLLOVL *)
    ret  far 0
(*%E *)

(***************************************************************************)
section;
segment PROC_TEXT(CODE,28H)

extrn @MachineId

public __set_machine_id :

  mov ax, 0F000H
  mov es, ax
  mov al, es:[0FFFEH]
  mov cs:[@MachineId], al
  ret far 0

(*****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)


select _TEXT

public __env_copy :

    push ds
    mov  ds, ax
rep ; movsb
    pop  ds
    ret  0

(****************************************************************************)

section
segment _TEXT(CODE,28H)
extrn __call_main
public __init0 :
    jmp __call_main

section
segment _TEXT(CODE,28H)
extrn __main_args2
extrn __setargv
public __init2 :
    call __setargv
    jmp __main_args2

section
segment _TEXT(CODE,28H)
extrn __main_args3
extrn __setenv
extrn __setargv
public __init3 :
(*%F NearCall *)
    call far __setenv
(*%E *)
(*%T NearCall *)
    call __setenv
(*%E *)
    call __setargv
    jmp __main_args3

(***************************************************************************)
(*%T _WINDLL *)
section
segment _TEXT(CODE,28H)

extrn __libmain_args

public __initWDLL :

    jmp  __libmain_args

(*%E *)

(*%F _OS2 *)
(***************************************************************************)
section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn __stklen
extrn __nheaptop
extrn __SSisDS
extrn __far_ss

select _TEXT

(* ------------------------------------------------------------------------
   PROCEDURE - _getheapbase.

   PRECONDITIONS - __SSisDS, far_ss and __stklen initialised.

   POSTCONDITIONS - None.

   IN PARAMETERS -  None.

   OUT PARAMETERS - Returns far pointer to far heap base.

   CALLING CONVENTION - Standard.

   NOTES -  Does not cause far heap to be initialsised.

   VERSION - _OS2 and MSDOS.

   ------------------------------------------------------------------------ *)

public __getheapbase :

(*%T _DLLOVL *)
    push bp
    mov  bp, sp
(*%E *)
(*%F NearPtr *)
(*%F SameDS *)
    push ds
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    sub  ax, ax
    cmp  byte [__SSisDS], 0
    jne  nearStack
    add  ax, [__stklen]
    add  ax, 0FH
    shr  ax, 1
    shr  ax, 1
    shr  ax, 1
    shr  ax, 1
nearStack:
    mov  dx, [__far_ss]
    add  dx, ax
    sub  ax, ax
(*%F SameDS *)
    pop  ds
(*%E *)
(*%E *)

(*%T NearPtr *)
    mov  dx, [__far_ss]
    sub  ax, ax
(*%E *)

(*%T _DLLOVL *)
    pop  bp
(*%E *)
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)
(****************************************************************************)
(*%F _WINDLL *)
section

segment _INIT(INIT_CODE,28H)
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)
segment _BSS(BSS, 28H)

extrn __setargv

select _TEXT

do_initargc : (* defined later on ! *)

select _INIT
(*%F NearCall *)
initargc : dw MAGIC_NUM
           db PR4
           dd do_initargc
(*%E *)
(*%T NearCall *)
initargc : dw MAGIC_NUM
           db PR4
           dw do_initargc
(*%E *)

select _BSS
public __argv : org 32*DataPtrSize

select _DATA

public __argc : dw initargc

select  _TEXT

(*%T _DLLOVL *)
    push bp
    mov  bp, sp
(*%E *)
    call __setargv
(*%F NearCall *)
(*%T _DLLOVL *)
    pop  bp
(*%E *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(****************************************************************************)
section

segment _INIT(INIT_CODE,28H)
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)
segment _BSS(BSS, 28H)

extrn __setargv
extrn __setenv

select _TEXT

do_initargce : (* defined later on ! *)

select _INIT
(*%F NearCall *)
initargce : dw MAGIC_NUM
            db PR4
            dd do_initargce
(*%E *)
(*%T NearCall *)
initargce : dw MAGIC_NUM
            db PR4
            dw do_initargce
(*%E *)

select _DATA

public __env_var : dw initargce
                   org ENVNUM*DataPtrSize-2

select  _TEXT

(*%T _DLLOVL *)
    push bp
    mov  bp, sp
(*%E *)
(*%F NearCall *)
    call far __setenv
(*%E *)
(*%T NearCall *)
    call __setenv
(*%E *)
    call __setargv
(*%F NearCall *)
(*%T _DLLOVL *)
    pop  bp
(*%E *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)
(*%E *)
(****************************************************************************)

segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn __exit
extrn __osmajor
extrn __osminor

select _TEXT


(* void __osversion(void) - checks DOS version and terminates if v1.x. *)

public __osversion :
    push ds
    mov  ah, 30H
    int  21H
    or   al, al
    je   versionOne
    mov  [__osmajor], al
    mov  [__osminor], ah
    jmp  versionDone
versionOne:
    mov  ax, cs
    mov  ds, ax
    mov  dx, message
    mov  ah, 9
    int  21H
    pop  ds
(*%F NearCall *)
    call far __exit
(*%E *)
(*%T NearCall *)
    call __exit
(*%E *)
versionDone:
    pop  ds
    ret  0

message : db 'Error MSDOS V1$'

(**************************************************************************)
(*%F _WINDLL *)
section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

select _DATA

extrn __osmajor
extrn __argv
extrn __argbuf
extrn __argc
extrn __psp
extrn __arg_init

select _TEXT

public __setargv :

  push di
  push si
  push ds
  cmp  byte [__arg_init], 0
  jne  near initDone
  not  byte [__arg_init]
  mov  di, __argbuf
  cmp  word [__osmajor], 2             (* process command line *)
  je   noExecName
  mov  es, [__psp]
  mov  es, es:[2CH]
  sub  di, di
  sub  ax, ax
  mov  cx, -1
execLoop:                              (* get address of command *)
  scasw
  je   execFound
  dec  di
  loop execLoop
(*%F NearPtr *)
execFound:
  add  di, 2
  mov  [__argv], di
  mov  [__argv][2], es
  jmp  argv1
noExecName:                            (* version 2 - argv[0]=NULL *)
  mov  word [__argv], 0
  mov  word [__argv][2], 0
argv1:
  mov  bx, 4                           (* move arguments to buffer  *)
  mov  es, [__psp]
  mov  di, 81H
  mov  si, __argbuf
  mov  cl, es:[di][-1]
  sub  ch, ch
argLoop:
  mov  al, ' '
repe ; scasb
  je   endofLine
  dec  di
  inc  cx
  mov  [__argv][bx], si
  mov  [__argv][bx][2], ds
  xchg di, si
  push es
  push ds
  pop  es
  pop  ds
  add  bx, 4
  mov  dl, ' '
  mov  dh, 0
moveLoop:
  lodsb
  cmp  al, dl
  jne  notSpace
  cmp  dh, 1
  jz   endString
endStringRet:
  sub  al, al
  stosb
  xchg di, si
  push es
  push ds
  pop  es
  pop  ds
  loop argLoop
  jmp  endofLine
notSpace:
  cmp  al, '"'
  je   startString
  stosb
startStringRet:
  loop moveLoop
  sub  al, al
  stosb
endofLine:
  shr  bx, 1
  shr  bx, 1
(*%E *)
(*%T NearPtr *)
execFound:
  mov  ax, es
  mov  ds, ax                       (* ds:si = name *)
(*%T _WINDOWS *)
  mov  ax, ss
(*%E *)
(*%F _WINDOWS *)
  mov  ax, _DATA
(*%E *)
  mov  es, ax
  add  di, 2
  mov  si, di
  mov  di, __argbuf                 (* es:di = buffer *)
  mov  es:[__argv], di
nLoop:
  lodsb
  stosb
  or   al, al
  jz   argv1
  jmp  nLoop
noExecName:                            (* version 2 - argv[0]=NULL *)
  mov  word [__argv], 0
argv1:
  mov  bx, 2                           (* move arguments to buffer  *)
(*%T _WINDOWS *)
  mov  ax, ss
(*%E *)
(*%F _WINDOWS *)
  mov  ax, _DATA
(*%E *)
  mov  ds, ax
  mov  es, [__psp]
  mov  si, di
  mov  di, 81H
  mov  cl, es:[di][-1]
  sub  ch, ch
argLoop:
  mov  al, ' '
repe ; scasb
  je   endofLine
  dec  di
  inc  cx
  mov  [__argv][bx], si
  xchg di, si
  push es
  push ds
  pop  es
  pop  ds
  add  bx, 2
  mov  dl, ' '
  mov  dh, 0
moveLoop:
  lodsb
  cmp  al, dl
  jne  notSpace
  cmp  dh, 1
  jz   endString
endStringRet:
  sub  al, al
  stosb
  xchg di, si
  push es
  push ds
  pop  es
  pop  ds
  loop argLoop
  jmp  endofLine
notSpace:
  cmp  al, '"'
  je   startString
  stosb
startStringRet:
  loop moveLoop
  sub  al, al
  stosb
endofLine:
  shr  bx, 1
(*%E *)
(*%T _WINDOWS *)
  mov  ax, ss
(*%E *)
(*%F _WINDOWS *)
  mov  ax, _DATA
(*%E *)
  mov  ds, ax
  mov  [__argc], bx
initDone:
  pop  ds
  pop  si
  pop  di
  ret  0

startString:
  mov  dh, 1
  mov  dl, '"'
  jmp  startStringRet

endString:
  mov  dh, 0
  mov  dl, ' '
  jmp  endStringRet
(*%E *)
(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

select _DATA

extrn __sigsetup
extrn __exitbreak
extrn __exitsig
extrn __exitgraph

select _TEXT

public __exit :

(*
void __exit(int code)

terminates process.
*)
code   = frame

    push bp
    mov  bp, sp
(*%T RegParam *)
    mov  di, ax
(*%E *)
(*%F SameDS *)
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
(*%F _WINDOWS *)
    mov  cx, [__exitbreak]
    jcxz noBreak
    call far [__exitbreak]
noBreak:
    mov  cx, [__exitsig]
    jcxz noSig
(*%F NearCall *)
    call far [__exitsig]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noSig:
    mov  cx, [__exitgraph]
    jcxz noGraph
(*%F NearCall *)
    call far [__exitgraph]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noGraph:
(*%E *)
extrn __FloatFinish
    call far __FloatFinish
(*%F RegParam *)
    mov  al, [bp][code]
(*%E *)
(*%T RegParam *)
    mov  ax, di
(*%E *)
(*%T _DLLOVL *)
    extrn Loader$Terminate
    call far Loader$Terminate
(*%E *)
    mov  ah, 4CH
    int  21H

db 'TopSpeed RTL (C) Clarion Software Corporation 1989-1992'

(****************************************************************************)
section
segment _DATA(DATA, 28H)
segment _TEXT(CODE,28H)

extrn __exit_proc
extrn __exitbreak
extrn __exitsig
extrn __exitgraph
extrn __FloatFinish

public __term_process :


(*%T _DLLOVL *)
    push bp
    mov  bp, sp
(*%E *)
    mov  cx, [__exit_proc]
    jcxz noCall4
(*%F SameDS *)
    push ds
(*%E *)
    call far [__exit_proc]
(*%F SameDS *)
    pop  ds
(*%E *)
noCall4:
    mov  cx, [__exitbreak]
    jcxz noBreak
    call far [__exitbreak]
noBreak:
    mov  cx, [__exitsig][2]
    jcxz noSig
(*%F NearCall *)
    call far [__exitsig]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noSig:
    mov  cx, [__exitgraph]
    jcxz noGraph
(*%F NearCall *)
    call far [__exitgraph]
(*%E *)
(*%T NearCall *)
    call cx
(*%E *)
noGraph:
    call far __FloatFinish
(*%T _DLLOVL *)
    pop  bp
(*%E *)
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)


(****************************************************************************)
section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

select _DATA

message : db 'Floating Point Not Loaded$'

select _TEXT


public __real_pdef :
public __real_sdef :

(*%F SameDS *)
    push ds
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    mov  dx, message
    mov  ah, 9
    extrn @DosInterrupt
(*%F NearCall *)
    call far @DosInterrupt
(*%E *)
(*%T NearCall *)
    call @DosInterrupt
(*%E *)
(*%F SameDS *)
    pop  ds
(*%E *)
    ret  0

(*%F _WINDOWS *)
section

segment _TEXT(CODE,28H)
segment _INIT(INIT_CODE,28H)
segment EMU_STATE(DATA,28H)
segment _CONST(DATA,28H)
segment _DATA(DATA,28H)
segment BSS_START(BSS,28H)
segment _BSS(BSS,28H)
segment BSS_END(BSS,28H)
segment NEAR_STACK(BSS, 28H)
segment NEAR_HEAP(BSS, 28H)
group DGROUP(EMU_STATE,_CONST,_DATA,BSS_START,_BSS,BSS_END,NEAR_STACK,NEAR_HEAP)


extrn __psp
extrn __env
extrn __hugeshift
extrn __env_var
extrn __env_size
extrn __osmajor
extrn __argv
extrn __argc
extrn __argbuf
extrn __farstack
extrn __fmemsetup
extrn __nheaptop
extrn _main
extrn __exit
extrn __cleanup
extrn __stklen
extrn __osversion
extrn _x_initx
extrn _x_bss_end
extrn _x_bss_start
extrn __bss_end
extrn __bss_start
extrn _x_main
extrn __main_args
extrn __FloatInit
extrn __SigInit
extrn __SSisDS
extrn __far_ss
extrn __stk_base
extrn __initx
extrn __x_near_stack_start
extrn __set_machine_id
extrn __InitSetup
extrn __InitLoop
extrn @ExitCode

select _TEXT                     (* Process initialisation starts here *)
                                 (* DON'T TOUCH *)
public __startup :
  mov  dx, ds                    (* save PSP *)
  cld                            (* cld is assumed everywhere *)
  mov  ax, BSS_START
  mov  es, ax
  mov  ax, _DATA
  mov  ds, ax
  mov  [__stklen], si
  mov  [__far_ss], ss
(*%F MThread *)
(*%F NearPtr *)
  mov  [__SSisDS], cl
(*%E *)
(*%E *)
(*%T NearPtr *)
  mov  byte [__SSisDS], 1        (* SS always == DS in this model *)
(*%E *)
(*%T MThread *)
  mov  byte [__SSisDS], 0        (* SS always != DS in this model *)
(*%E *)
(*%F _DLL *)
  mov  di, [_x_bss_start]        (* set near heap and _BSS bounds *)
  mov  cx, [_x_bss_end]
(*%E *)
(*%T _DLL *)
  mov  di, __bss_start           (* set near heap and _BSS bounds *)
  mov  cx, __bss_end
(*%E *)
  mov  si, cx                    (* clear _BSS segment *)
  sub  cx, di
  sub  ax, ax
  shr  cx, 1
  rep; stosw
  adc  cx, 0
  rep; stosb

  mov [__psp],dx                 (* save psp segment *)
  mov es, dx
  mov dx, es:[2CH]
  mov [__env], dx                (* save enviromment segment *)
(*%F NearPtr *)
  mov byte ss:[CurrentThread], 1
(*%E *)
  mov word ss:[InMathLib], 0

  cmp byte [__SSisDS], 1
  je  nearStack
  not word [__farstack]                (* far stack required, not much to do *)
  jmp stackSet
nearStack:
  mov bx, [__x_near_stack_start]
  mov [__stk_base], bx
  add bx, [__stklen]
  and bx, ~1
  sub bx, 2
  mov ax, _DATA               (* Near stack required, move it to DGROUP *)
  mov ss, ax
  mov sp, bx

stackSet:
  mov  ax, STACK_GUARD
  push ax
  sub  bp, bp
  push bp
  mov  bp, sp
  call far __FloatInit       (* initialise floating point if present *)
  call __osversion           (* get MSDOS version first *)
  call far __set_machine_id
  mov  word [__hugeshift], 1000H

  call __InitSetup

(* Program actually starts after library initialization is performed durring *)
(* the following call                                                        *)
(*%F NearCall *)
  call far __InitLoop        (* library module initialisation is called here *)
(*%E *)
(*%T NearCall *)
  call __InitLoop
(*%E *)

  call __cleanup
  mov  ax, [@ExitCode]
(*%F RegParam *)
  push ax
(*%E *)
(*%F NearCall *)
  call far __exit
(*%E *)
(*%T NearCall *)
  call __exit
(*%E *)
(* This call will not return *)
(*****************************)

public $Stage2 :

(*%F NearCall *)
  call far __SigInit
(*%E *)
(*%T NearCall *)
  call __SigInit             (* initialise interrupt vectors *)
(*%E *)
  add  word [__stk_base], 100H

(*%F _DLLOVL *)
  cmp  byte [__fmemsetup], 0
  jnz  dontFree              (* Far heap present memory init complete *)

  sub  dx, dx
  cmp  byte [__SSisDS], 1
  je   nearStackSet          (* free surplus memory if near heap and stack *)
  mov  dx, [__stklen]
  add  dx, 0FH
  jnc  sizeOK
  mov  dx, 1000H
  jmp  nearStackSet
sizeOK:
  mov  cl, 4
  shr  dx, cl
nearStackSet:
  mov  ax, [__psp]
  mov  es, ax
  mov  bx, [__far_ss]
  add  bx, dx
  mov  es:[2], bx
  sub  bx, ax
  mov  ah, 4AH
  int  21H

dontFree:
(*%E *)
(*%F _ENV *)
(*%T _DLLOVL *)
  mov  byte [__fmemsetup], 1 (* Far Heap Managed by Loader *)
(*%E *)
(*%E *)
  jmp  far [_x_initx]


section
segment _TEXT(CODE, 28H)

extrn _main
extrn _x_main

public __call_main :
(*%F NearCall *)
(*%T _DLLOVL *)
  push bp
  mov  bp,sp
(*%E *)
  call far [_x_main]             (* call main *)
(*%T _DLLOVL *)
  pop  bp
(*%E *)
  ret  far 0
(*%E *)
(*%T NearCall *)
  call [_x_main]
  ret  0
(*%E *)

(*%E *) (* NOT Windows *)

(*%T _WINDOWS *)
section

segment _TEXT(CODE,28H)
segment _INIT(INIT_CODE,28H)
segment BEGDATA(DATA,28H)
public __bdata_dummy : org 10
segment EMU_STATE(DATA,28H)
segment _CONST(DATA,28H)
segment _DATA(DATA,28H)
segment BSS_START(BSS,28H)
segment _BSS(BSS,28H)
segment BSS_END(BSS,28H)

group DGROUP(BEGDATA,EMU_STATE,_CONST,_DATA,BSS_START,_BSS,BSS_END)

extrn __psp
extrn __env
extrn __hugeshift
extrn __env_var
extrn __env_size
extrn __osmajor
extrn __argv
extrn __argc
extrn __argbuf
extrn __farstack
extrn __fmemsetup
extrn __nheaptop
extrn _main
extrn __exit
extrn __cleanup
extrn __stklen
extrn __osversion
extrn _x_bss_end
extrn _x_bss_start
extrn _x_main
extrn __main_args
extrn __FloatInit
extrn __SigInit
extrn __SSisDS
extrn __stk_base
extrn _x_initx
extrn __set_machine_id
extrn __InitLoop
extrn __InitSetup
extrn __ireg
extrn @ExitCode

select _DATA

dm :  dw 0

select _TEXT                     (* Process initialisation starts here *)
                                 (* DON'T TOUCH *)
public __startup :
  cld                            (* cld is assumed everywhere *)
(*%F _WINDLL *)
  mov  [__stk_base], cx          (* cx set by call to INITTASK *)
(*%E *)
  mov  cx, ds
  mov  es, cx
  mov  cx, [_x_bss_end]
(*%T _WINDLL *)
  mov  [__stk_base], cx
(*%E *)
  mov  di, [_x_bss_start]        (* set near heap and _BSS bounds *)
  mov  si, cx                    (* clear _BSS segment *)
  sub  cx, di
  sub  ax, ax
  rep; stosb                           (* cx = 0 *)

(*%F _WINDLL *)
  mov dx, [__ireg][PSPSeg]
  mov [__psp],dx                 (* save psp segment *)
  mov es, dx
  mov dx, es:[2CH]
  mov [__env], dx                (* save enviromment segment *)
(*%E *)
  mov  ax, STACK_GUARD                 (* set up stack *)
  push ax
  push cx
  mov  bp, sp

  call far __FloatInit       (* initialise floating point if present *)
  mov  word [__hugeshift], 1000H

  call __InitSetup
(*%F NearCall *)
  call far __InitLoop        (* lib module initialisation is called here *)
(*%E *)
(*%T NearCall *)
  call __InitLoop
(*%E *)

  call __cleanup
  mov  ax, [@ExitCode]
(*%T _WINDLL *)
  add  sp, 4
  ret  far 0
(*%E *)
(*%F RegParam *)
  push ax
(*%E *)
(*%F _WINDLL *)
(*%F NearCall *)
  call far __exit
(*%E *)
(*%T NearCall *)
  call __exit
(*%E *)
(*%E *)
(*%T _WINDLL *)
  ret  far 0
(*%E *)

(* This call will not return *)
(*****************************)

public $Stage2 :
(*%F NearCall *)
    inc  bp
    push bp
    mov  bp, sp
(*%E *)

    add  word [__stk_base], 100H
    jmp  far [_x_initx]

public __call_main :
(*%F NearCall *)
    call far [_x_main]                 (* call main *)
    pop  bp
    dec  bp
    ret  far 0
(*%E *)
(*%T NearCall *)
    call [_x_main]
    ret  0
(*%E *)

section

segment EMU_TEXT  (EMU_CODE,28H)

public __FloatInitStack :

(*%T RegParam *)
 push cx     (* initialise fp registers except for stack top *)
 mov cx,7
push_zero:
 fldz st(0)
 loop push_zero
 pop cx
(*%E *)
 ret  far 0

(*%E _WINDOWS *)

section

segment _TEXT(CODE,28H)
segment PROC_TEXT(CODE,28H)
segment _DATA(DATA, 28H)
segment EMU_STATE(DATA,68H)

extrn @Save8087
extrn emuBuffer
extrn __initsig
extrn __real_in
extrn __real_out
extrn __rreal_in
extrn __rreal_out
extrn __farstack
extrn __stk_base

select _TEXT

public __fp_1 :


(*%F _WINDOWS *)
    mov  ax, PROC_TEXT
    mov  es, ax
    mov  byte es:[@Save8087], 1
    mov  ax, _DATA
    mov  es, ax
    cmp  word es:[__farstack], 0
    je   nearStack
    add  word es:[__stk_base], 490
nearStack:
(*%F _DLL *)
    mov  word es:[__real_in], __rreal_in     (* initialise 'C' fp output *)
    mov  word es:[__real_out], __rreal_out
(*%E *)
    call far __initsig
    ret  far 0

dw emuBuffer
(*%E *)

(*%T _WINDOWS *)
    mov  word [__real_in], __rreal_in     (* initialise 'C' fp output *)
    mov  word [__real_out], __rreal_out
    call far __initsig
    ret  far 0

(*%E *)
section

segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn __real_in
extrn __real_out
extrn __real_pdef
extrn __real_sdef

select _TEXT

public __fp_0 :

(*%F _DLL *)
(*%F _WINDOWS *)
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    mov  word [__real_in], __real_sdef
    mov  word [__real_out], __real_pdef
(*%E *)
    ret  far 0

(*%E *) (* NOT OS2 *)

section
(****************************************************************************)
(*%T _OS2 *)
segment _INIT(INIT_CODE,28H)
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)
segment _BSS(BSS, 28H)

extrn __setargv
extrn __InitLoop

select _DATA

extrn __x_ax
extrn __x_bx

select _TEXT

do_initargc : (* defined later on ! *)

select _INIT
(*%F NearCall *)
initargc : dw MAGIC_NUM
           db PR4
           dd do_initargc
(*%E *)
(*%T NearCall *)
initargc : dw MAGIC_NUM
           db PR4
           dw do_initargc
(*%E *)

select _BSS
public __argv : org 32*DataPtrSize

select _DATA
public __argc : dw initargc


select  _TEXT

    call __setargv
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(****************************************************************************)
section

segment _INIT(INIT_CODE,28H)
segment _TEXT(CODE,28H)
segment _DATA(DATA,28H)
segment _BSS(BSS, 28H)

extrn __setargv
extrn __setenv
extrn __InitLoop

select _DATA

select _TEXT

do_initargce : (* defined later on ! *)

select _INIT
(*%F NearCall *)
initargce : dw MAGIC_NUM
            db PR4
            dd do_initargce
(*%E *)
(*%T NearCall *)
initargce : dw MAGIC_NUM
            db PR4
            dw do_initargce
(*%E *)

select _DATA

public __env_var : dw initargce
                   org ENVNUM*DataPtrSize-2

select  _TEXT

(*%F NearCall *)
    call far __setenv
(*%E *)
(*%T NearCall *)
    call __setenv
(*%E *)
    call __setargv
(*%F NearCall *)
    ret  far 0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(****************************************************************************)

segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn DOSGETVERSION
extrn DOSGETMACHINEMODE

select _DATA

extrn __osmajor
extrn __osminor
extrn __osmode

select _TEXT

public __osversion :

(*
void __osversion(void)

sets OS version
*)

version = -2
locals  =  2

    push bp
    mov  bp, sp
    sub  sp, locals
(*%F SameDS *)
    push ds
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    push ss
    lea  ax, [bp][version]
    push ax
    call far DOSGETVERSION
    sub  ax, ax
    mov  al, [bp][version]
    mov  [__osminor], ax
    mov  al, [bp][version][1]
    mov  [__osmajor], ax
    push ds
    mov  ax, __osmode
    push ax
    call far DOSGETMACHINEMODE
(*%F SameDS *)
    pop  ds
(*%E *)
    mov  sp, bp
    pop  bp
(*%F NearCall *)
    ret  far  0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)


select _DATA

extrn __x_ax
extrn __x_bx

extrn __argv
extrn __argbuf
extrn __argc
extrn __arg_init

select _TEXT

public __setargv :

    push bp
    push di
    push si
    push ds
    mov  cx, _DATA
    mov  ds, cx
    cmp  byte [__arg_init], 0
    jne  near initDone
    not  byte [__arg_init]
    mov  di, __argbuf
(*%F NearPtr *)
    push ds
    mov  si, [__x_bx]
    mov  ds, [__x_ax]
    mov  ax, _DATA
    mov  es, ax
    mov  di, __argbuf
    mov  bx, __argv
    sub  bp, bp
    mov  cx, 1
    mov  dl, ' '
    mov  dh, 0
mainLoop:
    mov  es:[bx], di
    mov  es:[bx][2], es
    inc  bp
copyLoop:
startStringRet:
    lodsb
    or   al, al
    je   copyDone
    cmp  al, dl
    je   getNextCommand
    cmp  al, '"'
    je   startString
    stosb
    jmp  copyLoop
getNextCommand:
    cmp  dh, 1
    jz   endString
endStringRet:
    sub  al, al
    stosb
    add  bx, 4
skipLoop:
    mov  al, [si]
    or   al, al
    je   copyDone
    cmp  al, ' '
    jne  mainLoop
    inc  si
    loop skipLoop
copyDone:
    dec  cx
    jcxz getNextCommand
    stosb
    pop  ds
(*%E *)
(*%T NearPtr *)
    push ds
    mov  si, [__x_bx]
    mov  ds, [__x_ax]
    mov  ax, _DATA
    mov  es, ax
    mov  di, __argbuf
    mov  bx, __argv
    sub  bp, bp
    mov  cx, 1
    mov  dl, ' '
    mov  dh, 0
mainLoop:
    mov  es:[bx], di
    inc  bp
copyLoop:
startStringRet:
    lodsb
    or   al, al
    je   copyDone
    cmp  al, dl
    je   getNextCommand
    cmp  al, '"'
    je   startString
    stosb
    jmp  copyLoop
getNextCommand:
    cmp  dh, 1
    jz   endString
endStringRet:
    sub  al, al
    stosb
    add  bx, 2
skipLoop:
    mov  al, [si]
    or   al, al
    je   copyDone
    cmp  al, ' '
    jne  mainLoop
    inc  si
    loop skipLoop
copyDone:
    dec  cx
    jcxz getNextCommand
    stosb
    pop  ds
(*%E *)
    mov  [__argc], bp
initDone:
    pop  ds
    pop  si
    pop  di
    pop  bp
    ret  0

startString:
    mov  dl, '"'
    mov  dh, 1
    jmp  startStringRet

endString:
    mov  dl, ' '
    mov  dh, 0
    inc  si
    jmp  endStringRet


(***************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn VIOWRTCHARSTR

select _DATA

message : db 'Floating Point Not Loaded'
MESLEN = 25

select _TEXT


public __real_pdef :
public __real_sdef :

(*%F SameDS *)
    push ds
    mov  ax, _DATA
    mov  ds, ax
(*%E *)
    push ds
    mov  ax, message
    push ax
    mov  ax, MESLEN
    push ax
    sub  ax, ax
    push ax
    push ax
    push ax
    call far VIOWRTCHARSTR
(*%F SameDS *)
    pop  ds
(*%E *)
    ret  0

section

segment _TEXT(CODE,28H)
segment _INIT(INIT_CODE,28H)
segment _CONST(DATA,28H)
segment _DATA(DATA,28H)
segment BSS_START(BSS,28H)
segment _BSS(BSS,28H)
segment BSS_END(BSS,28H)
segment NEAR_STACK(BSS,28H)
segment NEAR_HEAP(BSS,28H)

group DGROUP(_CONST,_DATA,BSS_START,_BSS,BSS_END,NEAR_STACK,NEAR_HEAP)


extrn __hugeshift
extrn __env_var
extrn __env_size
extrn __env
extrn __psp
extrn __osmajor
extrn __osmode
extrn __osversion
extrn @ExitCode
extrn __argv
extrn __argc
extrn __argbuf
extrn __farstack
extrn __nheaptop
extrn __sp_temp
extrn __ss_temp
extrn _x_bss_end
extrn _x_main
extrn __x_ax
extrn __x_bx
extrn __x_di
extrn __main_args
extrn __exit
extrn __cleanup
extrn _main
extrn __SSisDS
extrn __stk_base
extrn _x_initx
extrn __stklen
extrn __FloatInit
(*%F _DLL *)
extrn __siginit
(*%E *)
extrn __x_near_stack_start
extrn DOSGETHUGESHIFT
extrn DOSFREESEG
extrn DOSREALLOCSEG
extrn DOSGETMACHINEMODE
extrn __set_exit_handler
extrn __InitSetup
extrn __InitLoop

select _TEXT

public __startup :
  mov  dx, _DATA
  mov  ds, dx
  mov  [__stklen], si
  mov  [__SSisDS], cx
  mov  [__x_ax], ax
  mov  [__x_bx], bx
  mov  [__x_di], di
  mov  [__env], ax
  mov  [__sp_temp], sp
  mov  [__ss_temp], ss
(*%T _XTD *)
  push ax
  push bx
  mov  ah, 51H
  int  21H
  mov  [__psp],bx
  call far __osversion
  pop  bx
  pop  ax
(*%E *)
  push ds
  mov  ax, __osmode
  push ax
  call far DOSGETMACHINEMODE
(*%T MThread *)
  mov  byte ss:[CurrentThread], 1      (* Thread number *)
(*%E *)
  mov word ss:[InMathLib], 0
(*%T NearPtr *)
  cmp  byte [__SSisDS], 0
  jnz  sidSet
  mov  byte [__SSisDS], 1
sidSet:
(*%E *)
  cmp  byte [__SSisDS], 1
  je   nearStack
  cmp  byte [__SSisDS], 2
  je   pmStack
  not  word [__farstack]       (* far stack required, not much to do *)
  jmp  stackSet
nearStack:
  mov  bx, [__x_near_stack_start]
  mov  [__stk_base], bx
  add  bx, [__stklen]
  and  bx, ~1
  sub  bx, 2
  mov  ax, _DATA               (* Near stack required, move it to DGROUP *)
  mov  ss, ax
  mov  sp, bx
  jmp  stackSet
pmStack:
  mov  ax, sp
  sub  ax, [__stklen]
  mov  [__stk_base], ax
stackSet:
  mov  ax, __hugeshift
  push ds
  push ax
  call far DOSGETHUGESHIFT
  mov  cx, [__hugeshift]
  mov  ax, 1
  shl  ax, cx
  mov  [__hugeshift], ax
  mov  ax, STACK_GUARD
  push ax
  sub  bp, bp
  push bp
  mov  bp, sp
  call far __FloatInit
  cmp  word [__osmode], 0
  je   notPMode
  call far __set_exit_handler
notPMode:
  call __InitSetup
(*%F NearCall *)
  call far __InitLoop        (* lib module initialisation is called here *)
(*%E *)
(*%T NearCall *)
  call __InitLoop
(*%E *)
  call __cleanup
  mov  ax, [@ExitCode]
(*%F RegParam *)
  push ax
(*%E *)
(*%F NearCall *)
  call far __exit
(*%E *)
(*%T NearCall *)
  call __exit
(*%E *)
(* This call will not return *)
(*****************************)

public $Stage2 :
(*%F _DLL *)
  call __siginit
(*%E *)
  add  word [__stk_base], 100H
  jmp far [_x_initx]
public __call_main :
(*%F NearCall *)
  call far [_x_main]
  ret  far 0
(*%E *)
(*%T NearCall *)
  call [_x_main]
  ret  0
(*%E *)

(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn  DOSEXIT

select _DATA

extrn __sp_temp
extrn __ss_temp
extrn __SSisDS
extrn __exit_list_done

select _TEXT

public __exit :

(*
void __exit(int code)

terminates process.
*)
(*%F RegParam *)
code   = frame

    push bp
    mov  bp, sp
    mov  ax, [bp][code]
(*%E *)
    cmp  byte [__SSisDS], 1
    jne  farStack
    mov  ss, [__ss_temp]
    mov  sp, [__sp_temp]
farStack:
    mov  byte [__exit_list_done], 1
    mov  bx, EXIT_PROCESS
    push bx
    push ax
    call far  DOSEXIT                (* call exit function *)

db 'TopSpeed RTL (C) JPI 1989'

section

segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)
segment EMU_STATE(DATA,68H)

extrn emuBuffer
extrn __initsig
extrn __real_in
extrn __real_out
extrn __rreal_in
extrn __rreal_out
extrn __stk_base
extrn __farstack

select _TEXT

public __fp_1 :

    mov  ax, _DATA
    mov  es, ax
    cmp  word [__farstack], 0
    je   nearStack
    add  word [__stk_base], 490
nearStack:
(*%F _DLL *)
    mov  word es:[__real_in], __rreal_in     (* initialise 'C' fp output *)
    mov  word es:[__real_out], __rreal_out
(*%E *)
    call far __initsig
    ret  far 0

dw emuBuffer
section

segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn __real_in
extrn __real_out
extrn __real_pdef
extrn __real_sdef

select _TEXT

public __fp_0 :

(*%F _DLL *)
    mov  ax, _DATA
    mov  ds, ax
    mov  word [__real_in], __real_sdef
    mov  word [__real_out], __real_pdef
(*%E *)
    ret  far 0

(****************************************************************************)

section
segment _TEXT(CODE,28H)
segment _DATA(DATA, 28H)

extrn DOSGETPID

select _TEXT


public _getpid :

(* struct _PIDINFO *)

pid         = 0
tid         = 2
pidParent   = 6

PidInfoSize = 6

pidbuf  = -PidInfoSize
locals  = PidInfoSize

    push bp
    mov  bp, sp
    sub  sp, locals
    push ss
    lea  ax, [bp][pidbuf]
    push ax
    call far DOSGETPID
    mov  ax, [bp][pidbuf][pid]
    mov  sp, bp
    pop  bp
(*%F NearCall *)
    ret  far  0
(*%E *)
(*%T NearCall *)
    ret  0
(*%E *)

(*%E *) (* OS2 *)

section
(*%F _OS2 *)
(*%F _WINDOWS *)
  (***********************************************************************)
  (* $SWInt - Generate a SoftWare Interrupt                              *)
  (*                                                                     *)
  (* DOS Memory Models                                                   *)
  (*                                                                     *)
  (*   Internal Procedure - Near Call                                    *)
  (*     Parameters:                                                     *)
  (*       All Registers set up                                          *)
  (*       Interrupt number on stack                                     *)
  (*     Return:                                                         *)
  (*       All Registers set up                                          *)
  (*                                                                     *)
  (***********************************************************************)
segment _TEXT(CODE,48H)

IntNo                   = frame + 2
Flags                   = 2

public $SWInt :
    pushf
    push bp
    mov  bp, sp
    push ax
    mov  ax, [bp][IntNo]
    cli
    mov  cs:[$$InterruptNo], al
    mov  cs:[$$InterruptNo2], al
    db   0EAH                         (*I far jmp *)
    dw   $$Next,_TEXT                 (* purge pre-fetch *)
$$Next:
    cmp  al, 25H
    je   $$Int2526
    cmp  al, 26H
    je   $$Int2526
    pop  ax
    pop  bp
    db   0CDH                          (*I int *)
$$InterruptNo:
    db   0
$$IntDone:
    push bp
    mov  bp, sp
    push ax
    lahf
    mov  [bp][Flags], ah
    pop  ax
    pop  bp
    popf
(*%T _fcall *)
    ret  far 2
(*%E *)
(*%F _fcall *)
    ret  2
(*%E *)
$$Int2526:
    pop  ax
    pop  bp
    db   0CDH                          (*I int *)
$$InterruptNo2:
    db   0
    inc  sp
    inc  sp
    jmp  $$IntDone

(*%E _WINDOWS *)
(*%E _OS2 *)

section
(*%T _WINDOWS *)
  (***********************************************************************)
  (* $SWInt - Generate a SoftWare Interrupt                              *)
  (*                                                                     *)
  (* Windows Memory Models                                               *)
  (*                                                                     *)
  (*   Internal Procedure - Near Call                                    *)
  (*     Parameters:                                                     *)
  (*       All Registers set up                                          *)
  (*       Interrupt number on stack                                     *)
  (*     Return:                                                         *)
  (*       All Registers set up                                          *)
  (*                                                                     *)
  (***********************************************************************)
segment _TEXT(CODE,48H)

extrn ALLOCCSTODSALIAS
extrn FREESELECTOR

IntNo                   = frame + 2
Flags                   = 2

public $SWInt :
    pushf
    push bp
    mov  bp, sp
    push ax
    push ds
    push cs
    call far ALLOCCSTODSALIAS
    mov  ds, ax
    mov  ax, [bp][IntNo]
    cli
    mov  [$$InterruptNo],  al
    mov  [$$InterruptNo2], al
(*  call far $ClearPipe *)
    mov  ax, ds
    pop  ds
    push ax
    call far FREESELECTOR
    mov  ax, [bp][IntNo]
    cmp  al, 25H
    je   $$Dos2526
    cmp  al, 26H
    je   $$Dos2526
    pop  ax
    pop  bp
    db   0CDH                          (*I int *)
$$InterruptNo:
    db   0
$$IntDone:
    push bp
    mov  bp, sp
    push ax
    lahf
    mov  [bp][Flags], ah
    pop  ax
    pop  bp
    popf
(*%T _fcall *)
    ret  far 2
(*%E *)
(*%F _fcall *)
    ret  2
(*%E *)
$$Dos2526:
    pop  ax
    pop  bp
    db   0CDH                          (*I int *)
$$InterruptNo2:
    db   0
    inc  sp
    inc  sp
    jmp  $$IntDone

(*%E _WINDOWS *)

end