ZX-News #39 18 августа 1997

Startup - Autostart programs on any drive.

          Startup Programs


  Now let's talk about this possibility,
as auto-loading programs from disk, and downloading programs, 
"throw" on the disc as file (s) of the image memory or, as it 
is called, the alternative Magic-copy memory.



  The latest version of the Shadow Service Monitor download 
copies of the memory can not entering the monitor directly from 
BASIC-program. Makes a new restart 08bh. Here's a little 
program in assembly language: 


       LD BC, 0

       LD A, (# 5CF6)

       RST 8

       DEFB # 8B

       DEFM "namename"

       DEFB 0

where instead of "namename" can be any
name corresponding to name the first file dump. For example, 
you can download the program from the hard drive, which at 
stage boot from the drive to actively use the turbo-loader. 


  For those who do not know assembler, you can
offer to write a program from the following items:


  10 CLEAR 28900

  20 LET n $ = "namename"

  30 LET a = 29E3

  40 LET c = 9: GO SUB 120

  50 FOR i = 1 TO LEN (n $)

  60 POKE a, CODE n $ (i)

  70 LET a = a +1

  1980 NEXT i

  90 LET c = 3: GO SUB 120
 100 RANDOMIZE USR 29E3
 110 STOP
 120 FOR i = 0 TO c
 130 READ d
 140 POKE a, d
 150 LET a = a +1
 160 NEXT i
 170 RETURN
 180 DATA 217,229,1,0,0,58,246,92,207,139,
0,225,217,201


  On line 20, you can specify any file name, the length of the 
name can be any but not more than eight characters.



  Now on startup. If the submenu
"Disk utility" item "Autostart" is
able to "ON", then for any starting
computer will be automatically run the operating system stored 
on the device specified in paragraph "From drive" the same 
submenu. Do not forget to record the current state of

nonvolatile memory. For the system
TR-DOS, this means that the program will attempt to "boot.B", 
if any, on a diskette or psevdodiskete there. In fact, as it is 
pressing the ENTER key in menus 128 BASIC.