ULAplus support

[nitrofurano]

oops, i forgot to add a 'ulaplusgetpalette()' function - this is really important to get the palette values back - the example below illustrates the usage of it

library/ulaplus.bas

Code:

dim tmpv as uinteger
dim fdbkv as ubyte

function ulapluscheck():
  tmpv=in(65339):pause 1:fdbkv=0
  out 48955,0:out 65339,0:pause 1
  if in(65339)<>tmpv then:fdbkv=1:out 48955,0:out 65339,tmpv:pause 1:end if
  return fdbkv
  end function

sub ulapluspalette(clv as ubyte, vlv as ubyte):
  out 48955,(clv band 63):out 65339,vlv:pause 1
  end sub

function ulaplusgetpalette(clv as ubyte)
  out 48955,(clv band 63)
  return in(65339)
  pause 1
  end function

sub ulaplusswitch(flgv as ubyte):
  out 48955,64:out 65339,(flgv band 1):pause 1
  end sub

ulaplus_example.bas

Code:

#include "library/ulaplus.bas"
ulaplusswitch(1):cls
a$="ULAplus is not present"
if ulapluscheck()<>0 then:a$="ULAplus is present":end if
print at 0,0;a$
for fl=0 to 1:flash fl
  for hb=0 to 1:bright hb
    for ik=0 to 7
      ink ik:inverse 1:print " ";
      next
    for pa=0 to 7
      paper pa:inverse 0:print " ";
      next
    next:next
for i=0 to 63
  'ulapluspalette(i,int(rnd*255))
  ulapluspalette(i,i)
  next
print
ink 0:paper 7:bright 1
for i=0 to 63
  print ulaplusgetpalette(i);",";
  next i
pause 0