Hi Jan,
> I need to do a bitmask on register.
The simplest operations are the ones documented
in the source file
\ Use it this way:
\ PORTD 7 portpin: PD.7 ( define portD pin #7)
\ PD.7 high ( turn portD pin #7 on, i.e. set it high-
level)
\ PD.7 low ( turn portD pin
Hello Jan,
> I need to do a bitmask on register.
>
> These are the constants, and mask
>
> $24 constant ddrb
> $25 constant portb
>
> \ bit masks
> %000100 constant mSS ( PB2 )
> %10 constant mSCK ( PB5 )
>
> I wont
> 1. to set the bits in ddrb with the bitmask mSS
> 2. to clear bits in port
Jan,
For a general idea on masks you might want to consult p. 92 of "Starting Forth".
If I remember correctly "bitmask:" will create a bitmask, but not do the
bit-setting for you. One has to write to the registers to do that (not sure
anymore if it is just "c!" or a special version of store fo
Hello,
I need to do a bitmask on register.
These are the constants, and mask
$24 constant ddrb
$25 constant portb
\ bit masks
%000100 constant mSS ( PB2 )
%10 constant mSCK ( PB5 )
I wont
1. to set the bits in ddrb with the bitmask mSS
2. to clear bits in portb with the bitmask mSCK
In
