Category : Assembly Language Source Code
Archive   : UCRASM27.ZIP
Filename : SHELL.ASM

 
Output of file : SHELL.ASM contained in archive : UCRASM27.ZIP
.xlist
include stdlib.a
includelib stdlib.lib
.list

; Global variables go here:

dseg segment para public 'data'
dseg ends



cseg segment para public 'code'
assume cs:cseg, ds:dseg

;
; Variables that wind up being used by the standard library routines.
; The MemInit routine uses "PSP" and "zzzzzzseg" labels. They must be
; present if you intend to use getenv, MemInit, malloc, and free.
;
;
public PSP
PSP dw ?
;
mmm "Hello",cr,lf,0
;
;
;--------------------------------------------
; Here is a good place to put other routines:
;
;
;
;
;-----------------------------------------------------------------
; Main is the main program. Program execution always begins here.
;
Main proc
mov cs:PSP, es ;Save pgm seg prefix
mov ax, seg dseg ;Set up the segment registers
mov ds, ax
mov es, ax
;
mov dx, 0
meminit
jnc GoodMemInit

print
db "Error initializing memory manager",cr,lf,0
jmp Quit
GoodMemInit:

;***************************************************************************
;
; Put your main program here.
;
;***************************************************************************





Quit: ExitPgm
Main endp

cseg ends



; Allocate a reasonable amount of space for the stack (2k).

sseg segment para stack 'stack'
stk db 256 dup ("stack ")
sseg ends


; zzzzzzseg must be the last segment that gets loaded into memory!

zzzzzzseg segment para public 'zzzzzz'
LastBytes db 16 dup (?)
zzzzzzseg ends
end Main


  3 Responses to “Category : Assembly Language Source Code
Archive   : UCRASM27.ZIP
Filename : SHELL.ASM

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