119 lines
2.1 KiB
Plaintext
119 lines
2.1 KiB
Plaintext
( Project by Alex Schroeder - https://alexschroeder.ch )
|
|
|
|
%RTN { JMP2r }
|
|
%INCR { SWP #01 ADD SWP }
|
|
%CELL { #1000 }
|
|
%NEXT { #2000 }
|
|
|
|
( devices )
|
|
|
|
|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
|
|
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
|
|
|b0 @DateTime [ &year $2 &month $1 &day $1 &hour $1 &minute $1 &second $1 &dotw $1 &doty $2 &isdst $1 ]
|
|
|
|
|0000
|
|
|
|
( program )
|
|
|
|
@seed [ &x $1 &w $2 &s $2 ]
|
|
|
|
|0100 ( -> )
|
|
|
|
( theme )
|
|
#2aac .System/r DEO2
|
|
#269b .System/g DEO2
|
|
#378d .System/b DEO2
|
|
|
|
;seed-line JSR2
|
|
|
|
( run for a few generations )
|
|
#00 #ff
|
|
&loop
|
|
OVR #00 SWP ;print-line JSR2
|
|
;compute-next JSR2
|
|
;copy-next JSR2
|
|
( incr ) INCR
|
|
( loop ) LTHk ,&loop JCN
|
|
POP2
|
|
|
|
BRK
|
|
|
|
@print-line ( y -- )
|
|
|
|
( set ) .Screen/y DEO2
|
|
( loop through cells )
|
|
#00 #ff
|
|
&loop
|
|
( copy ) OVR #00 SWP DUP2
|
|
( pos ) .Screen/x DEO2
|
|
( addr ) CELL ADD2
|
|
( draw ) LDA .Screen/color DEO
|
|
( incr ) INCR
|
|
( loop ) LTHk ,&loop JCN
|
|
POP2
|
|
|
|
RTN
|
|
|
|
@compute-next ( -- )
|
|
|
|
( loop through 62 cells )
|
|
#01 #fe
|
|
&loop
|
|
OVR DUP DUP ( three copies of the counter )
|
|
#01 SUB #00 SWP CELL ADD2 LDA
|
|
SWP
|
|
#01 ADD #00 SWP CELL ADD2 LDA
|
|
( the cell dies if the neighbors are either both dead or both alive, i.e. Rule 90 )
|
|
NEQ
|
|
( one copy of the counter and the life value )
|
|
SWP #00 SWP NEXT ADD2 STA
|
|
( incr ) INCR
|
|
( loop ) LTHk ,&loop JCN
|
|
POP2
|
|
|
|
RTN
|
|
|
|
@copy-next ( -- )
|
|
|
|
( loop through cells )
|
|
#00 #ff
|
|
&loop
|
|
OVR DUP ( two copies of the counter )
|
|
#00 SWP NEXT ADD2 LDA ( one copy of the counter and the value )
|
|
SWP #00 SWP CELL ADD2 STA
|
|
( incr ) INCR
|
|
( loop ) LTHk ,&loop JCN
|
|
POP2
|
|
|
|
RTN
|
|
|
|
@seed-line ( -- )
|
|
|
|
.DateTime/second DEI .seed/x STZ
|
|
#0000 .seed/w STZ2
|
|
#e2a9 .seed/s STZ2
|
|
( loop through cells )
|
|
#01 #fe
|
|
&loop
|
|
OVR ( one copy of the counter )
|
|
;rand JSR2
|
|
#10 AND ( pick a bit )
|
|
SWP #00 SWP CELL ADD2 STA
|
|
( incr ) INCR
|
|
( loop ) LTHk ,&loop JCN
|
|
POP2
|
|
|
|
RTN
|
|
|
|
( https://en.wikipedia.org/wiki/Middle-square_method )
|
|
|
|
@rand ( -- 1 )
|
|
|
|
.seed/x LDZ #00 SWP DUP2 MUL2
|
|
.seed/w LDZ2 .seed/s LDZ2 ADD2
|
|
DUP2 .seed/w STZ2
|
|
ADD2
|
|
#04 SFT SWP #40 SFT ADD
|
|
DUP .seed/x STZ
|
|
|
|
RTN |