VITOBS	VITOC	VITOCPP	VITOCUDA	Orig VITO
logic type	2-value	2-value	2-value	2-value	4-value
reg size	1,4,8 or 16	any, but uses 32	any, but uses 32	any, but uses 32	any
# vars/reg declare	1	ignored	1	1	any
# vars/input declare	ignored	ignored	1	1	any
# vars/output declare	ignored	ignored	1	1	any
non-port regs?	yes, but dcl in .bs0	yes, but dcl in C	no, all vars are ports	no, all vars are ports	yes, without restriction
state storage	global bit vars	global arrays	arrays in class	_vito_state & arg	regs
port treatment	global scalars	global arrays	arrays in class	args to kernel	verilog ports
func  use?	no	yes	yes	yes	yes
func dcl?	no	no	no	yes, with restrictions	yes
memory/array?	no	no	no	yes, dim must be hex	yes
array subscript	n/a	n/a	n/a	[scalar] on lhs,rhs	[scalar] on lhs
case?	no	no	no	no	only in function
binary ('h) con?	yes	future feature	future feature	yes	yes
octal ('o) con?	no	future feature	future feature	yes	yes
hex ('h) con?	yes	future feature	future feature	yes	yes
bit select	[con]	[con]or[con:con]	[con] or [con:con]	[con] or [con:con]	no restrictions
concat ({})?	no	no	no	yes, with restrictions	yes, but not on lhs
arith/logic ops	+-*/%~&|^	C/verilog common	C/verilog common	C/verilog common	all verilog
arith/logic restrictions	() for presidence	C/verilog common	C/verilog common	C/verilog common	all verilog
rel ops	< > == != <= >=	C/verilog common	C/verilog common	C/verilog common	all verilog
rel op syntax	(vc op vc)	C/verilog common	C/verilog common	C/verilog common	all verilog
rel op validity	|x-y|<32768	C unsigned	C unsigned	C unsigned	all verilog
multi always?	yes	yes	yes	yes	yes
multi insts of 1 module?	no	yes	yes	yes	yes
inst of multi modules?	no	no	yes,uses C++ classes	only if independent	yes
non-implicit code?	no	no	no	no	yes
blocking assignment?	no	no	no	no	only in non-implicit code
datapath	mul/add	mul/add	mul/add	mul/add or ?:	?:
testbench	in .bs0 and .bs1	in calling C main	in calling C++ main	separate .cu in kernel	separate .v files
$time	not translated	not translated	not translated	_vito_time	$time
system $ tasks	not allowed	not allowed	not allowed	not allowed	only in non-implicit code
# cycles run	loop in main	loop in C main	loop in C++ main	args to kernel	simulator and/or testbench