<s>
The	O
serial	O
port	O
,	O
we	O
ca	O
n't	O
read	O
high	O
density	O
floppies	O
,	O
there	O
is	O
n't	O
enough	O
band	O
width	O
to	O
do	O
72	O
Hz	O
screens	O
plus	O
there	O
are	O
no	O
chunky	B-General_Concept
pixel	O
modes	O
for	O
rendering	O
.	O
</s>
<s>
Unlike	O
AAA	O
which	O
was	O
a	O
radical	O
design	O
from	O
ECS	B-Device
and	O
did	O
not	O
support	O
AGA	O
registers	O
,	O
AA+	O
was	O
built	O
on	O
the	O
foundations	O
of	O
AGA	O
and	O
would	O
be	O
largely	O
compatible	O
with	O
AGA	O
.	O
</s>
<s>
AA+	O
systems	O
would	O
be	O
shipped	O
with	O
the	O
forthcoming	O
which	O
added	O
RTG	B-Application
support	O
for	O
chunky	B-General_Concept
pixels	I-General_Concept
.	O
</s>
<s>
To	O
keep	O
costs	O
down	O
,	O
Amiga	O
custom	O
chips	O
would	O
be	O
reduced	O
from	O
3	O
(	O
OCS	O
,	O
ECS	B-Device
,	O
AGA	O
)	O
to	O
only	O
two	O
.	O
</s>
<s>
In	O
comparison	O
,	O
AGA	O
Lisa	O
has	O
80,000	O
while	O
ECS	B-Device
has	O
a	O
total	O
of	O
60,000	O
.	O
</s>
<s>
Commodore	O
stated	O
that	O
AA+	O
was	O
designed	O
to	O
support	O
ALL	O
32-bit	O
680x0	B-Device
CPUs	O
.	O
</s>
<s>
For	O
Chunky	B-General_Concept
pixels	I-General_Concept
support	O
,	O
low	O
end	O
systems	O
would	O
most	O
likely	O
feature	O
a	O
68020	B-Device
with	O
full	O
32-bit	O
memory	O
addressing	O
(	O
i.e.	O
</s>
<s>
not	O
68EC020	B-Device
)	O
or	O
even	O
68EC030	B-Device
which	O
could	O
handle	O
RTG	B-Application
drivers	O
easily	O
.	O
</s>
<s>
Commodore	O
did	O
not	O
add	O
chunky	B-General_Concept
pixels	I-General_Concept
to	O
AGA	O
at	O
the	O
time	O
because	O
RTG	B-Application
required	O
at	O
least	O
68020	B-Device
(	O
not	O
68EC020	B-Device
as	O
in	O
A1200	O
)	O
with	O
memory	O
at	O
least	O
,	O
while	O
the	O
standard	O
A1200	O
had	O
only	O
and	O
68EC020	B-Device
CPU	O
.	O
</s>
<s>
AA+	O
had	O
8x	O
memory	O
bandwidth	O
over	O
ECS	B-Device
by	O
using	O
128-bit	O
long	O
memory	O
bus	O
bursts	O
like	O
AAA	O
.	O
</s>
<s>
Maximum	O
Chip	B-Device
RAM	I-Device
size	O
would	O
be	O
increased	O
to	O
.	O
</s>
<s>
AA+	O
would	O
use	O
DRAM	O
,	O
but	O
AA+	O
systems	O
would	O
need	O
at	O
least	O
as	O
a	O
standard	O
to	O
support	O
RTG	B-Application
and	O
packed	O
(	O
Chunky	B-General_Concept
)	O
pixels	O
,	O
an	O
A1200-like	O
systems	O
(	O
e.g.	O
</s>
<s>
Perhaps	O
the	O
most	O
significant	O
advancement	O
was	O
the	O
addition	O
of	O
16-bit	O
Chunky	B-General_Concept
mode	O
,	O
although	O
the	O
max	O
resolution	O
for	O
16-bit	O
pixels	O
would	O
be	O
.	O
</s>
<s>
There	O
is	O
no	O
mention	O
of	O
8-bit	O
chunky	B-General_Concept
mode	O
in	O
AA+	O
,	O
most	O
likely	O
256	O
colors	O
would	O
be	O
only	O
in	O
planar	O
mode	O
,	O
this	O
way	O
Commodore	O
could	O
keep	O
the	O
cost	O
of	O
AA+	O
down	O
,	O
as	O
8-bit	O
planar	O
support	O
had	O
to	O
remain	O
,	O
since	O
it	O
was	O
supported	O
in	O
AGA	O
.	O
</s>
<s>
A	O
2x	O
blitter	O
performance	O
over	O
AGA/ECS	O
one	O
was	O
promised	O
,	O
however	O
Commodore	O
never	O
mentioned	O
that	O
AA+	O
had	O
32-bit	O
blitter	O
like	O
AAA	O
,	O
so	O
AA+	O
blitter	O
would	O
stay	O
16-bit	O
to	O
keep	O
the	O
cost	O
down	O
.	O
</s>
<s>
When	O
asked	O
,	O
Lew	O
Eggebrecht	O
VP	O
of	O
Engineering	O
at	O
Commodore	O
stated	O
that	O
AA+	O
will	O
support	O
16-bit	O
sound	O
samples	O
,	O
but	O
it	O
is	O
unclear	O
whether	O
this	O
support	O
would	O
be	O
added	O
by	O
adding	O
a	O
DSP	B-Architecture
chip	I-Architecture
,	O
or	O
by	O
improving	O
Paula	O
to	O
something	O
better	O
like	O
AAA	O
,	O
although	O
Lew	O
Eggebrecht	O
stated	O
once	O
that	O
DSP	B-Architecture
will	O
be	O
integrated	O
in	O
all	O
future	O
Amiga	O
chipsets	O
including	O
the	O
low	O
end	O
ones	O
.	O
</s>
<s>
AA+	O
would	O
have	O
two	O
four-byte	O
buffered	O
FIFO	B-Operating_System
serial	O
UARTs	O
like	O
the	O
AAA	O
.	O
</s>
<s>
Support	O
for	O
ALL	O
32	O
bit	O
680x0	B-Device
CPUs	O
.	O
</s>
<s>
8x	O
memory	O
bandwidth	O
increase	O
over	O
ECS	B-Device
.	O
</s>
<s>
FIFO	B-Operating_System
serial	O
ports	O
with	O
large	O
buffer	O
.	O
</s>
<s>
Increased	O
chip	B-Device
ram	I-Device
limit	O
up	O
to	O
.	O
</s>
