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Collection of Hack-Phreak Scene Programs
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cleanhpvac.zip
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cleanhpvac
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PCACHSRC.ZIP
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MASTREXE.ASM
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Assembly Source File
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1990-07-12
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2KB
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36 lines
;MASTREXE.ASM B.Kauler
;--> MASTREXE.OBJ + SLAVEXE.OBJ + SERF.OBJ --> MASTREXE.EXE
;A demonstration of linking .EXE files.
;...............................................................
stack1 segment stack ;'stack' not required on the end.
db 256 dup(0)
stack1 ends
;...............................................................
data segment public 'data' ;'data' useful for linker.
extrn data1:byte
local_data db "this is local data",0Ah,0Dh,"$"
data ends
;...............................................................
code segment public 'code' ;'code' useful for linker.
assume cs:code, ds:data ;tells Assembler default code & data
;segments for the instructions to follow.
extrn slave_routine:near
master_routine proc far
mov ax,data ;When prog loads, DS not set to DATA
mov ds,ax ;segment, so do it here.
mov dx,offset local_data
mov ah,9
int 21h ;display a message.
;the interesting bit....
call slave_routine
;interesting here also....
mov dx,offset data1 ;DATA1 is external.
mov ah,9
int 21h ;display message.
mov al,0
mov ah,4Ch
int 21h ;back to DOS
master_routine endp
code ends
end master_routine