2011-11-07, 12:59 PM
since i'm seeing so many good games from MojonTwins supporting ULAplus, and its implementation looked so simple, i tried to code some library and example for that - be welcome testing it (i think would be a good idea if this could be implemented defaultly on zxbasic-compiler, what do you all think?)
(for now i'm testing this on SpectEmu on Wine, while there are no native emulators for LInux)
library/ulaplus.bas
ulaplus_example.bas
(for now i'm testing this on SpectEmu on Wine, while there are no native emulators for LInux)
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
sub ulaplusswitch(flgv as ubyte):
out 48955,64:out 65339,(flgv band 1):pause 1
end subulaplus_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 pa=0 to 7
paper pa:inverse 0
print " ";
next
for ik=0 to 7
ink ik:inverse 1
print " ";
next
next:next
for i=0 to 63
ulapluspalette(i, int(rnd*255) )
next
pause 0