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Here  is  a  layout  gude  for  the  1500  and  1000.  If  you  would 
like  to  add  a  jack  to  your  cosputer  to  get  a  ■onitor  output, 
it  is  very  simple!  In  the  case  of  the  1000,  simply  solder  a 
47  MF  cap  rated  at  least  16  volt  (+  side)  to  pin  16  of  the 
ULA  chip.  The  other  side  of  the  cap  (-  side)  goes  to  the 
center  of  an  RCA  jack.  The  sleeve  of  the  jack  goes  to  metal 
can  of  the  sodulator.  In  the  case  of  the  1500,  instead  of 
connecting  to  the  ULA  chip,  you  connect  to  the  lower  side  of 
D-19. (it’s  marked  on  the  board)  The  other  connections  are 
the  saae.  The  1000/1500  actually  has  a  cleaner  vidio  than 
the  2068!  It  is  also  fairly  easy  to  convert  your  B  &  N  TV 
to  a  aonitor.  You  should  use  a  TV  that  is  isolated  froai  the 
AC  line.  Alaost  all  portable  or  12  volt  Bedels  will  work.  If 
you  want  to  do  this,  give  me  a  call  for  *ore  details. 

You  aay  also  want  to  install  a  Reset  switch.  If  so,  refer  to 
the  April  RAMT0P.  DON’T  ATTEMPT  THIS  UNLESS  YOU  HAVE  A  BIT 
OF  ELECTRICAL  KNOWLEDGE!  THIS  IS  ALSO,  AT  YOUR  OWN  RISK! 


TS-IOOO 

PRINTER 
RAM  PACK 


SPECTRUM 
CALLS  AND 
POKES 


Here  are  a  selection  of  POKEs 
and  ROM  calls  for  the 
Spectrum  that  produce  some 
interesting  effects  without 
upsetting  the  machine. 

Justin  Moffitt 


POKE  23756,0 . Makes  first  line  line  O 

POKE  23756,1 . Makes  line  O  line  1 

POKE  23609,25 . Makes  keyboard  bleep 

POKE  23609,0 . Makes  keyboard  silent 

POKE  23658,8 . Turns  CAPS  LOCK  on 

POKE  23658,0 . Turns  CAPS  LOCK  off 

POKE  23755,100 . Disables  list  command 

POKE  23755,0 . Re-enables  list  command 

1  POKE  23659,0 . Makes  24-line  screen 

9999  POKE  23659,2 . Makes  22-line  screen  again 

POKE  23736,181 . Stops  the  START  TAPE 

_ _ _____  prompt 


RAH  TOP 


POKE  23692,255 . 

POKE  23613,0 . . . 

POKE  23613, PEEK(23730)-5 

LET  t=USR  3582  . 

LET  t=USR  4757  . 

LET  t=USR  3213 . 

LET  t=65536-USR  7962 . 

LET  t=USR  3583 . 

LET  t=USR  3652  . ; . 

LET  t=USR  3330 . < . 

POKE  23617,236 . . 

OUT  10, colour . 


POKE  23617,14.. 
LET  t=USR  1331 

LET  t=USR  1290 

LET  t=USR  1269 

-ET  t=USR  1251 

LET  t=USR  1551 

LET  t=USR  1248 

LET  t=USR  1333 

LET  t=USR  1327 

LET  t=USR  1267 


LET  time=(65536*PEEK . 

23674+ 256*PEEK 
2367,3  + PEEK  23672)  60 

for  US 

Using  the  'border  effects' 


. Stops  the  SCROLL? 

prompt 

—  Disables  BREAK  key,  so 
when  it  is  pressed  the 
program  hangs  up 
..  .Disables  BREAK 
completely 

....Scrolls  screen  one  line 
....Prints  the  Sinclair  prompt, 
but  does  not  clear  the  RAM 
....Stops  and  asks,  SCROLL  ? 
....Prints  free  memory  in 
bytes 

.. .  .Scrolls  bottom  half  of 
screen  one  line 
...Clears  top  half  of  screen 
...Scrolls  whole  page  to  top 
line,  must  be  followed  by 
CLS 

...Changes  cursor  to  ? 
...Changes  BORDER  colour 
to  f,  and  gives  a  CLICK, 
useful  for  routine  when  a 
game  has  been  won 
Changes  cursor  to  _ 

Gives  special  border  effect 
in  magenta  and  blue 
Gives  special  border  effect 
in  blue  and  red 
Gives  special  border  effect 
with  special  sounds 
Gives  border  effect  in 
green  and  magenta 
Gives  a  list  of  programs  on 
tape 

Gives  border  effect  in 
white  and  black 
Gives  border  effect  in  cyan 
and  blue 

Gives  border  effect  in 
white  and  blue 
Gives  border  effect  in  blue 
and  yellow 

•Gives  time  in  seconds 
since  the  computer  was 
turned  on,  and  only  resets 
every  four  days 


The  border  effects  give  the  effect  of  the  save  bars  in 
different  cotours.  They  only  stop  after  SPACE  has  been 
pressed,  but  some  contain  a  delay  loop  as  well. 

For  example: 


10  PAPER  1 : INK  7: LET  t=USR  1333:CLS 
15  REM  rest  of  program 


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