;[START]-------------------------------------------------------------------
;   DOS Program Entry Point
START:
    jmp     main
;[DATA]--------------------------------------------------------------------
;   Local global TSR data goes here
YourStack   dd ?
MyStack     dd ?
OldTck      dd ?
;[NEWTCK]------------------------------------------------------------------
;   Our new timer handler, IRQ-0 (8)
NewTck PROC
    cli                                     ;disable interrupts
    mov     word ptr CS:[YourStack][2],SS   ;save interrupted stack address
    mov     word ptr CS:[YourStack][0],SP
    mov     SS,word ptr CS:[MyStack][2]     ;set our own stack
    mov     SP,word ptr CS:[MyStack][0]
    pusha                                   ;push all registers
    mov     AX,1001h                        ;VIDEO - set border color
    int     10h                             ;call VIDEO to change border
    popa                                    ;pop all registers
    mov     SS,word ptr CS:[YourStack][2]   ;restore interrupted stack
    mov     SP,word ptr CS:[YourStack][0]
    sti                                     ;enable interrupts
    jmp     CS:[OldTck]                     ;chain to previous handler
NewTck ENDP
;[SNIP]--------------------------------------------------------------------
;   All code/data upto this point is kept resident in memory
SNIP:
;[MAIN]--------------------------------------------------------------------
;   Actual start of program, jumped to from DOS entry point above.
main PROC
    mov     word ptr [MyStack][2],CS             ;save our stack address
    mov     word ptr [MyStack][0],offset START   ;we'll use the PSP space
    mov     AX,3508h                   ;DOS - get vector for INT-08h (IRQ-0)
    int     21h                        ;call DOS to get the address
    mov     word ptr [OldTck][2],ES    ;save segment
    mov     word ptr [OldTck][0],BX    ;save offset
    sub     AH,10h                     ;DOS - set vector for INT-08h (IRQ-0)
    mov     DX,offset NewTck           ;DS:DX -> new handler routine
    int     21h                        ;call DOS to set the new address
    mov     DX,offset SNIP             ;all code upto SNIP is kept resident
    shr     DX,04h                     ;convert to paragraphs
    inc     DX                         ;plus one more to round up
    mov     AX,3100h                   ;DOS - TSR program with code (0)
    int     21h                        ;call DOS to TSR program
main ENDP
PRG ENDS
    END START
;--------------------------------------------------------------------------
Cheers,
  Denis Boyles
 * OLX 2.1 TD * Hello, I am part number ||X||||X||X||X||
--- Maximus/2 3.01
 * Origin: Frog Hollow Port Moody BC 604-469-0264/0284 (1:153/290)
---------------

FIDO MESSAGE AREA==> TOPIC: 145 ASSEMBLY LANG. Ref: E4J00013Date: 04/14/97
From: JOSH AXTELL                                           Time: 10:36pm
\/To: ALL                                                 (Read 5 times)
Subj: programming

I recently aquired visual basic 5.0 beta.  I do not know much about 
programming And I was hoping someone could help me.  Please respond to 
AOSD@juno.com if you can.  Thank you
--- Maximus 3.01
 * Origin: E. C. Unlimited (1:2608/27)
---------------

FIDO MESSAGE AREA==> TOPIC: 145 ASSEMBLY LANG. Ref: E4K00000Date: 04/13/97
From: MARTIJN VAN DE STREEK                                 Time: 09:21am
\/To: PETER LOUWEN                                        (Read 5 times)
Subj: FS and GS registers

Hi Peter,
Long ago, on Sat 12 Apr 1997, Peter wrote to Tim:
 PL> Actually, they're a bit like ES: non-dedicated segment
 PL> registers.
To be precise:
ES = Extra Segment (never used it)
FS \ just counting from E (you know the alphabet, don't you ? :)
GS / (never used it either)
Martijn
---
 * Origin: Main acticity - coding coders. (2:283/507.4)
---------------

FIDO MESSAGE AREA==> TOPIC: 145 ASSEMBLY LANG. Ref: E4K00001Date: 04/14/97
From: CAREY BLOODWORTH                                      Time: 09:12pm
\/To: MODERATOR                                           (Read 5 times)
Subj: encoded messages

M>I *think* 99% of the reader software can handle 200 lines before
M>the message gets chopped off. Old SLMR had a limit of 150, but I
M>don't see it used much anymore.
SLMR and OLX-TD both have a limit of 150.  Although SLMR isn't widely
used, OLX-TD is.
Also, I think some BBSs _might_ (can't verify it) have their own line
limit and simply chop the rest off, where as others will split it into
multiple messages.
--- QScan/PCB v1.19b / 01-0162
 * Origin: Jackalope Junction 501-785-5381 Ft Smith AR (1:3822/1)
---------------

FIDO MESSAGE AREA==> TOPIC: 145 ASSEMBLY LANG. Ref: E4K00002Date: 04/14/97
From: BENJAMIN L MCGEE                                      Time: 10:54pm
\/To: IAN MOOTE                                           (Read 5 times)
Subj: FILE-ACCESS TUTORIAL.

 On 04-02-97 Ian Moote wrote to All... 
 
 IM> Would anyone else do me the favour of proof-reading that 
 IM> file-access tutorial? 
 
Sure.  
 
*Unable to locate Coffee -- Operator Halted! 
  
blm
--- FLAME v1.1
 * Origin: Purgatoire BBS, 719-846-0140, Trinidad, CO, V.34 (1:15/7)